From 4ce7e9a3ff627147458bd382fbb40f0601f31013 Mon Sep 17 00:00:00 2001
From: fys <40801205+fengys1996@users.noreply.github.com>
Date: Mon, 18 Aug 2025 10:58:28 +0800
Subject: [PATCH] refactor: enhanced trigger interval (#269)

* fix: improve interval precision

* chore: better name

* chore: add /opt/include to proto include

* remove empty line
---
 Cargo.toml                                 |   1 +
 c++/greptime/v1/ddl.pb.cc                  | 477 +++++++------
 c++/greptime/v1/ddl.pb.h                   | 179 ++++-
 go/greptime/v1/ddl.pb.go                   | 137 ++--
 java/src/main/java/io/greptime/v1/Ddl.java | 747 +++++++++++++++------
 proto/greptime/v1/ddl.proto                |   6 +-
 scripts/generate-cpp.sh                    |   4 +-
 scripts/generate-go.sh                     |   5 +-
 scripts/generate-java.sh                   |   2 +-
 9 files changed, 1048 insertions(+), 510 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index caa79ff..cdfbf28 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ license = "Apache-2.0"
 
 [dependencies]
 prost = "0.13"
+prost-types = "0.13"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 strum = "0.25"
diff --git a/c++/greptime/v1/ddl.pb.cc b/c++/greptime/v1/ddl.pb.cc
index 890d3e1..8514c2e 100644
--- a/c++/greptime/v1/ddl.pb.cc
+++ b/c++/greptime/v1/ddl.pb.cc
@@ -713,7 +713,8 @@ PROTOBUF_CONSTEXPR CreateTriggerExpr::CreateTriggerExpr(
   , /*decltype(_impl_.catalog_name_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.trigger_name_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.sql_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
-  , /*decltype(_impl_.interval_)*/uint64_t{0u}
+  , /*decltype(_impl_.raw_interval_expr_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+  , /*decltype(_impl_.interval_)*/nullptr
   , /*decltype(_impl_.create_if_not_exists_)*/false
   , /*decltype(_impl_._cached_size_)*/{}} {}
 struct CreateTriggerExprDefaultTypeInternal {
@@ -1252,6 +1253,7 @@ const uint32_t TableStruct_greptime_2fv1_2fddl_2eproto::offsets[] PROTOBUF_SECTI
   PROTOBUF_FIELD_OFFSET(::greptime::v1::CreateTriggerExpr, _impl_.labels_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::CreateTriggerExpr, _impl_.annotations_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::CreateTriggerExpr, _impl_.interval_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::CreateTriggerExpr, _impl_.raw_interval_expr_),
   ~0u,  // no _has_bits_
   PROTOBUF_FIELD_OFFSET(::greptime::v1::NotifyChannel, _internal_metadata_),
   ~0u,  // no _extensions_
@@ -1338,10 +1340,10 @@ static const ::_pbi::MigrationSchema schemas[] PROTOBUF_SECTION_VARIABLE(protode
   { 431, 439, -1, sizeof(::greptime::v1::CreateTriggerExpr_LabelsEntry_DoNotUse)},
   { 441, 449, -1, sizeof(::greptime::v1::CreateTriggerExpr_AnnotationsEntry_DoNotUse)},
   { 451, -1, -1, sizeof(::greptime::v1::CreateTriggerExpr)},
-  { 465, -1, -1, sizeof(::greptime::v1::NotifyChannel)},
-  { 474, 482, -1, sizeof(::greptime::v1::WebhookOptions_OptsEntry_DoNotUse)},
-  { 484, -1, -1, sizeof(::greptime::v1::WebhookOptions)},
-  { 492, -1, -1, sizeof(::greptime::v1::DropTriggerExpr)},
+  { 466, -1, -1, sizeof(::greptime::v1::NotifyChannel)},
+  { 475, 483, -1, sizeof(::greptime::v1::WebhookOptions_OptsEntry_DoNotUse)},
+  { 485, -1, -1, sizeof(::greptime::v1::WebhookOptions)},
+  { 493, -1, -1, sizeof(::greptime::v1::DropTriggerExpr)},
 };
 
 static const ::_pb::Message* const file_default_instances[] = {
@@ -1400,188 +1402,192 @@ static const ::_pb::Message* const file_default_instances[] = {
 };
 
 const char descriptor_table_protodef_greptime_2fv1_2fddl_2eproto[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) =
-  "\n\025greptime/v1/ddl.proto\022\013greptime.v1\032\030gr"
-  "eptime/v1/common.proto\"\250\004\n\nDdlRequest\022:\n"
-  "\017create_database\030\001 \001(\0132\037.greptime.v1.Cre"
-  "ateDatabaseExprH\000\0224\n\014create_table\030\002 \001(\0132"
-  "\034.greptime.v1.CreateTableExprH\000\0222\n\013alter"
-  "_table\030\003 \001(\0132\033.greptime.v1.AlterTableExp"
-  "rH\000\0220\n\ndrop_table\030\004 \001(\0132\032.greptime.v1.Dr"
-  "opTableExprH\000\0228\n\016truncate_table\030\007 \001(\0132\036."
-  "greptime.v1.TruncateTableExprH\000\0222\n\013creat"
-  "e_flow\030\010 \001(\0132\033.greptime.v1.CreateFlowExp"
-  "rH\000\022.\n\tdrop_flow\030\t \001(\0132\031.greptime.v1.Dro"
-  "pFlowExprH\000\0222\n\013create_view\030\n \001(\0132\033.grept"
-  "ime.v1.CreateViewExprH\000\022.\n\tdrop_view\030\013 \001"
-  "(\0132\031.greptime.v1.DropViewExprH\000\0228\n\016alter"
-  "_database\030\014 \001(\0132\036.greptime.v1.AlterDatab"
-  "aseExprH\000B\006\n\004expr\"\226\003\n\016CreateFlowExpr\022\024\n\014"
-  "catalog_name\030\001 \001(\t\022\021\n\tflow_name\030\002 \001(\t\0222\n"
-  "\022source_table_names\030\003 \003(\0132\026.greptime.v1."
-  "TableName\022/\n\017sink_table_name\030\004 \001(\0132\026.gre"
-  "ptime.v1.TableName\022\022\n\nor_replace\030\005 \001(\010\022\034"
-  "\n\024create_if_not_exists\030\006 \001(\010\022.\n\014expire_a"
-  "fter\030\007 \001(\0132\030.greptime.v1.ExpireAfter\022\017\n\007"
-  "comment\030\010 \001(\t\022\013\n\003sql\030\t \001(\t\022B\n\014flow_optio"
-  "ns\030\n \003(\0132,.greptime.v1.CreateFlowExpr.Fl"
-  "owOptionsEntry\0322\n\020FlowOptionsEntry\022\013\n\003ke"
-  "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"u\n\014DropFlowEx"
-  "pr\022\024\n\014catalog_name\030\001 \001(\t\022\021\n\tflow_name\030\002 "
-  "\001(\t\022$\n\007flow_id\030\003 \001(\0132\023.greptime.v1.FlowI"
-  "d\022\026\n\016drop_if_exists\030\005 \001(\010\"\376\001\n\016CreateView"
-  "Expr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_nam"
-  "e\030\002 \001(\t\022\021\n\tview_name\030\003 \001(\t\022\024\n\014logical_pl"
-  "an\030\004 \001(\014\022\034\n\024create_if_not_exists\030\005 \001(\010\022\022"
-  "\n\nor_replace\030\006 \001(\010\022+\n\013table_names\030\007 \003(\0132"
-  "\026.greptime.v1.TableName\022\017\n\007columns\030\010 \003(\t"
-  "\022\024\n\014plan_columns\030\t \003(\t\022\022\n\ndefinition\030\n \001"
-  "(\t\"\213\001\n\014DropViewExpr\022\024\n\014catalog_name\030\001 \001("
-  "\t\022\023\n\013schema_name\030\002 \001(\t\022\021\n\tview_name\030\003 \001("
-  "\t\022%\n\007view_id\030\004 \001(\0132\024.greptime.v1.TableId"
-  "\022\026\n\016drop_if_exists\030\005 \001(\010\"\207\003\n\017CreateTable"
-  "Expr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_nam"
-  "e\030\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\022\014\n\004desc\030\004 \001("
-  "\t\022+\n\013column_defs\030\005 \003(\0132\026.greptime.v1.Col"
-  "umnDef\022\022\n\ntime_index\030\006 \001(\t\022\024\n\014primary_ke"
-  "ys\030\007 \003(\t\022\034\n\024create_if_not_exists\030\010 \001(\010\022E"
-  "\n\rtable_options\030\t \003(\0132..greptime.v1.Crea"
-  "teTableExpr.TableOptionsEntry\022&\n\010table_i"
-  "d\030\n \001(\0132\024.greptime.v1.TableId\022\016\n\006engine\030"
-  "\014 \001(\t\0323\n\021TableOptionsEntry\022\013\n\003key\030\001 \001(\t\022"
-  "\r\n\005value\030\002 \001(\t:\0028\001\"\312\005\n\016AlterTableExpr\022\024\n"
-  "\014catalog_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t"
-  "\022\022\n\ntable_name\030\003 \001(\t\022.\n\013add_columns\030\004 \001("
-  "\0132\027.greptime.v1.AddColumnsH\000\0220\n\014drop_col"
-  "umns\030\005 \001(\0132\030.greptime.v1.DropColumnsH\000\0220"
-  "\n\014rename_table\030\006 \001(\0132\030.greptime.v1.Renam"
-  "eTableH\000\022=\n\023modify_column_types\030\007 \001(\0132\036."
-  "greptime.v1.ModifyColumnTypesH\000\0229\n\021set_t"
-  "able_options\030\010 \001(\0132\034.greptime.v1.SetTabl"
-  "eOptionsH\000\022=\n\023unset_table_options\030\013 \001(\0132"
-  "\036.greptime.v1.UnsetTableOptionsH\000\022*\n\tset"
-  "_index\030\014 \001(\0132\025.greptime.v1.SetIndexH\000\022.\n"
-  "\013unset_index\030\r \001(\0132\027.greptime.v1.UnsetIn"
-  "dexH\000\0222\n\rdrop_defaults\030\016 \001(\0132\031.greptime."
-  "v1.DropDefaultsH\000\022.\n\013set_indexes\030\017 \001(\0132\027"
-  ".greptime.v1.SetIndexesH\000\0222\n\runset_index"
-  "es\030\020 \001(\0132\031.greptime.v1.UnsetIndexesH\000\0220\n"
-  "\014set_defaults\030\021 \001(\0132\030.greptime.v1.SetDef"
-  "aultsH\000B\006\n\004kind\"\"\n\013DropDefault\022\023\n\013column"
-  "_name\030\001 \001(\t\"8\n\nSetIndexes\022*\n\013set_indexes"
-  "\030\001 \003(\0132\025.greptime.v1.SetIndex\">\n\014UnsetIn"
-  "dexes\022.\n\runset_indexes\030\001 \003(\0132\027.greptime."
-  "v1.UnsetIndex\"=\n\nSetDefault\022\023\n\013column_na"
-  "me\030\001 \001(\t\022\032\n\022default_constraint\030\002 \001(\014\"\237\001\n"
-  "\010SetIndex\022,\n\010fulltext\030\001 \001(\0132\030.greptime.v"
-  "1.SetFulltextH\000\022,\n\010inverted\030\002 \001(\0132\030.grep"
-  "time.v1.SetInvertedH\000\022,\n\010skipping\030\003 \001(\0132"
-  "\030.greptime.v1.SetSkippingH\000B\t\n\007options\"\247"
-  "\001\n\nUnsetIndex\022.\n\010fulltext\030\001 \001(\0132\032.grepti"
-  "me.v1.UnsetFulltextH\000\022.\n\010inverted\030\002 \001(\0132"
-  "\032.greptime.v1.UnsetInvertedH\000\022.\n\010skippin"
-  "g\030\003 \001(\0132\032.greptime.v1.UnsetSkippingH\000B\t\n"
-  "\007options\"\216\001\n\rDropTableExpr\022\024\n\014catalog_na"
-  "me\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntable_n"
-  "ame\030\003 \001(\t\022&\n\010table_id\030\004 \001(\0132\024.greptime.v"
-  "1.TableId\022\026\n\016drop_if_exists\030\005 \001(\010\"\314\001\n\022Cr"
-  "eateDatabaseExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023"
-  "\n\013schema_name\030\002 \001(\t\022\034\n\024create_if_not_exi"
-  "sts\030\003 \001(\010\022=\n\007options\030\004 \003(\0132,.greptime.v1"
-  ".CreateDatabaseExpr.OptionsEntry\032.\n\014Opti"
-  "onsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001"
-  "\"\250\001\n\021TruncateTableExpr\022\024\n\014catalog_name\030\001"
-  " \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntable_name\030"
-  "\003 \001(\t\022&\n\010table_id\030\004 \001(\0132\024.greptime.v1.Ta"
-  "bleId\022,\n\013time_ranges\030\005 \001(\0132\027.greptime.v1"
-  ".TimeRanges\"U\n\020DropDatabaseExpr\022\024\n\014catal"
-  "og_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\026\n\016dr"
-  "op_if_exists\030\003 \001(\010\"9\n\nAddColumns\022+\n\013add_"
-  "columns\030\001 \003(\0132\026.greptime.v1.AddColumn\"\?\n"
-  "\014DropDefaults\022/\n\rdrop_defaults\030\001 \003(\0132\030.g"
-  "reptime.v1.DropDefault\"<\n\013SetDefaults\022-\n"
-  "\014set_defaults\030\001 \003(\0132\027.greptime.v1.SetDef"
-  "ault\"<\n\013DropColumns\022-\n\014drop_columns\030\001 \003("
-  "\0132\027.greptime.v1.DropColumn\"O\n\021ModifyColu"
-  "mnTypes\022:\n\023modify_column_types\030\001 \003(\0132\035.g"
-  "reptime.v1.ModifyColumnType\"%\n\013RenameTab"
-  "le\022\026\n\016new_table_name\030\001 \001(\t\"\204\001\n\tAddColumn"
-  "\022*\n\ncolumn_def\030\001 \001(\0132\026.greptime.v1.Colum"
-  "nDef\0220\n\010location\030\003 \001(\0132\036.greptime.v1.Add"
-  "ColumnLocation\022\031\n\021add_if_not_exists\030\004 \001("
-  "\010\"\236\001\n\020ModifyColumnType\022\023\n\013column_name\030\001 "
-  "\001(\t\0220\n\013target_type\030\002 \001(\0162\033.greptime.v1.C"
-  "olumnDataType\022C\n\025target_type_extension\030\003"
-  " \001(\0132$.greptime.v1.ColumnDataTypeExtensi"
-  "on\"$\n\006Option\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t"
-  "\"=\n\017SetTableOptions\022*\n\rtable_options\030\001 \003"
-  "(\0132\023.greptime.v1.Option\"!\n\021UnsetTableOpt"
-  "ions\022\014\n\004keys\030\001 \003(\t\"\032\n\nDropColumn\022\014\n\004name"
-  "\030\001 \001(\t\"\025\n\007TableId\022\n\n\002id\030\001 \001(\r\"\024\n\006FlowId\022"
-  "\n\n\002id\030\001 \001(\r\"\254\002\n\tColumnDef\022\014\n\004name\030\001 \001(\t\022"
-  ".\n\tdata_type\030\002 \001(\0162\033.greptime.v1.ColumnD"
-  "ataType\022\023\n\013is_nullable\030\003 \001(\010\022\032\n\022default_"
-  "constraint\030\004 \001(\014\0220\n\rsemantic_type\030\005 \001(\0162"
-  "\031.greptime.v1.SemanticType\022\017\n\007comment\030\006 "
-  "\001(\t\022@\n\022datatype_extension\030\007 \001(\0132$.grepti"
-  "me.v1.ColumnDataTypeExtension\022+\n\007options"
-  "\030\010 \001(\0132\032.greptime.v1.ColumnOptions\"\230\001\n\021A"
-  "ddColumnLocation\022B\n\rlocation_type\030\001 \001(\0162"
-  "+.greptime.v1.AddColumnLocation.Location"
-  "Type\022\031\n\021after_column_name\030\002 \001(\t\"$\n\014Locat"
-  "ionType\022\t\n\005FIRST\020\000\022\t\n\005AFTER\020\001\"\324\001\n\013SetFul"
-  "ltext\022\023\n\013column_name\030\001 \001(\t\022\016\n\006enable\030\002 \001"
-  "(\010\022\'\n\010analyzer\030\003 \001(\0162\025.greptime.v1.Analy"
-  "zer\022\026\n\016case_sensitive\030\004 \001(\010\022-\n\007backend\030\005"
-  " \001(\0162\034.greptime.v1.FulltextBackend\022\023\n\013gr"
-  "anularity\030\006 \001(\004\022\033\n\023false_positive_rate\030\007"
-  " \001(\001\"$\n\rUnsetFulltext\022\023\n\013column_name\030\001 \001"
-  "(\t\"\"\n\013SetInverted\022\023\n\013column_name\030\001 \001(\t\"$"
-  "\n\rUnsetInverted\022\023\n\013column_name\030\001 \001(\t\"\241\001\n"
-  "\013SetSkipping\022\023\n\013column_name\030\001 \001(\t\022\016\n\006ena"
-  "ble\030\002 \001(\010\022\023\n\013granularity\030\003 \001(\004\022;\n\023skippi"
-  "ng_index_type\030\004 \001(\0162\036.greptime.v1.Skippi"
-  "ngIndexType\022\033\n\023false_positive_rate\030\005 \001(\001"
-  "\"$\n\rUnsetSkipping\022\023\n\013column_name\030\001 \001(\t\"\314"
-  "\001\n\021AlterDatabaseExpr\022\024\n\014catalog_name\030\001 \001"
-  "(\t\022\023\n\013schema_name\030\002 \001(\t\022\?\n\024set_database_"
-  "options\030\003 \001(\0132\037.greptime.v1.SetDatabaseO"
-  "ptionsH\000\022C\n\026unset_database_options\030\004 \001(\013"
-  "2!.greptime.v1.UnsetDatabaseOptionsH\000B\006\n"
-  "\004kind\"G\n\022SetDatabaseOptions\0221\n\024set_datab"
-  "ase_options\030\001 \003(\0132\023.greptime.v1.Option\"$"
-  "\n\024UnsetDatabaseOptions\022\014\n\004keys\030\001 \003(\t\"\217\003\n"
-  "\021CreateTriggerExpr\022\024\n\014catalog_name\030\001 \001(\t"
-  "\022\024\n\014trigger_name\030\002 \001(\t\022\034\n\024create_if_not_"
-  "exists\030\003 \001(\010\022\013\n\003sql\030\004 \001(\t\022,\n\010channels\030\005 "
-  "\003(\0132\032.greptime.v1.NotifyChannel\022:\n\006label"
-  "s\030\006 \003(\0132*.greptime.v1.CreateTriggerExpr."
-  "LabelsEntry\022D\n\013annotations\030\007 \003(\0132/.grept"
-  "ime.v1.CreateTriggerExpr.AnnotationsEntr"
-  "y\022\020\n\010interval\030\010 \001(\004\032-\n\013LabelsEntry\022\013\n\003ke"
-  "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\0322\n\020Annotation"
-  "sEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"]"
-  "\n\rNotifyChannel\022\014\n\004name\030\001 \001(\t\022.\n\007webhook"
-  "\030\002 \001(\0132\033.greptime.v1.WebhookOptionsH\000B\016\n"
-  "\014channel_type\"\177\n\016WebhookOptions\022\013\n\003url\030\001"
-  " \001(\t\0223\n\004opts\030\002 \003(\0132%.greptime.v1.Webhook"
-  "Options.OptsEntry\032+\n\tOptsEntry\022\013\n\003key\030\001 "
-  "\001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"U\n\017DropTriggerExp"
-  "r\022\024\n\014catalog_name\030\001 \001(\t\022\024\n\014trigger_name\030"
-  "\002 \001(\t\022\026\n\016drop_if_exists\030\003 \001(\010*$\n\010Analyze"
-  "r\022\013\n\007ENGLISH\020\000\022\013\n\007CHINESE\020\001*)\n\017FulltextB"
-  "ackend\022\013\n\007TANTIVY\020\000\022\t\n\005BLOOM\020\001*%\n\021Skippi"
-  "ngIndexType\022\020\n\014BLOOM_FILTER\020\000BL\n\016io.grep"
-  "time.v1B\003DdlZ5github.com/GreptimeTeam/gr"
-  "eptime-proto/go/greptime/v1b\006proto3"
+  "\n\025greptime/v1/ddl.proto\022\013greptime.v1\032\036go"
+  "ogle/protobuf/duration.proto\032\030greptime/v"
+  "1/common.proto\"\250\004\n\nDdlRequest\022:\n\017create_"
+  "database\030\001 \001(\0132\037.greptime.v1.CreateDatab"
+  "aseExprH\000\0224\n\014create_table\030\002 \001(\0132\034.grepti"
+  "me.v1.CreateTableExprH\000\0222\n\013alter_table\030\003"
+  " \001(\0132\033.greptime.v1.AlterTableExprH\000\0220\n\nd"
+  "rop_table\030\004 \001(\0132\032.greptime.v1.DropTableE"
+  "xprH\000\0228\n\016truncate_table\030\007 \001(\0132\036.greptime"
+  ".v1.TruncateTableExprH\000\0222\n\013create_flow\030\010"
+  " \001(\0132\033.greptime.v1.CreateFlowExprH\000\022.\n\td"
+  "rop_flow\030\t \001(\0132\031.greptime.v1.DropFlowExp"
+  "rH\000\0222\n\013create_view\030\n \001(\0132\033.greptime.v1.C"
+  "reateViewExprH\000\022.\n\tdrop_view\030\013 \001(\0132\031.gre"
+  "ptime.v1.DropViewExprH\000\0228\n\016alter_databas"
+  "e\030\014 \001(\0132\036.greptime.v1.AlterDatabaseExprH"
+  "\000B\006\n\004expr\"\226\003\n\016CreateFlowExpr\022\024\n\014catalog_"
+  "name\030\001 \001(\t\022\021\n\tflow_name\030\002 \001(\t\0222\n\022source_"
+  "table_names\030\003 \003(\0132\026.greptime.v1.TableNam"
+  "e\022/\n\017sink_table_name\030\004 \001(\0132\026.greptime.v1"
+  ".TableName\022\022\n\nor_replace\030\005 \001(\010\022\034\n\024create"
+  "_if_not_exists\030\006 \001(\010\022.\n\014expire_after\030\007 \001"
+  "(\0132\030.greptime.v1.ExpireAfter\022\017\n\007comment\030"
+  "\010 \001(\t\022\013\n\003sql\030\t \001(\t\022B\n\014flow_options\030\n \003(\013"
+  "2,.greptime.v1.CreateFlowExpr.FlowOption"
+  "sEntry\0322\n\020FlowOptionsEntry\022\013\n\003key\030\001 \001(\t\022"
+  "\r\n\005value\030\002 \001(\t:\0028\001\"u\n\014DropFlowExpr\022\024\n\014ca"
+  "talog_name\030\001 \001(\t\022\021\n\tflow_name\030\002 \001(\t\022$\n\007f"
+  "low_id\030\003 \001(\0132\023.greptime.v1.FlowId\022\026\n\016dro"
+  "p_if_exists\030\005 \001(\010\"\376\001\n\016CreateViewExpr\022\024\n\014"
+  "catalog_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022"
+  "\021\n\tview_name\030\003 \001(\t\022\024\n\014logical_plan\030\004 \001(\014"
+  "\022\034\n\024create_if_not_exists\030\005 \001(\010\022\022\n\nor_rep"
+  "lace\030\006 \001(\010\022+\n\013table_names\030\007 \003(\0132\026.grepti"
+  "me.v1.TableName\022\017\n\007columns\030\010 \003(\t\022\024\n\014plan"
+  "_columns\030\t \003(\t\022\022\n\ndefinition\030\n \001(\t\"\213\001\n\014D"
+  "ropViewExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013sch"
+  "ema_name\030\002 \001(\t\022\021\n\tview_name\030\003 \001(\t\022%\n\007vie"
+  "w_id\030\004 \001(\0132\024.greptime.v1.TableId\022\026\n\016drop"
+  "_if_exists\030\005 \001(\010\"\207\003\n\017CreateTableExpr\022\024\n\014"
+  "catalog_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022"
+  "\022\n\ntable_name\030\003 \001(\t\022\014\n\004desc\030\004 \001(\t\022+\n\013col"
+  "umn_defs\030\005 \003(\0132\026.greptime.v1.ColumnDef\022\022"
+  "\n\ntime_index\030\006 \001(\t\022\024\n\014primary_keys\030\007 \003(\t"
+  "\022\034\n\024create_if_not_exists\030\010 \001(\010\022E\n\rtable_"
+  "options\030\t \003(\0132..greptime.v1.CreateTableE"
+  "xpr.TableOptionsEntry\022&\n\010table_id\030\n \001(\0132"
+  "\024.greptime.v1.TableId\022\016\n\006engine\030\014 \001(\t\0323\n"
+  "\021TableOptionsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value"
+  "\030\002 \001(\t:\0028\001\"\312\005\n\016AlterTableExpr\022\024\n\014catalog"
+  "_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntabl"
+  "e_name\030\003 \001(\t\022.\n\013add_columns\030\004 \001(\0132\027.grep"
+  "time.v1.AddColumnsH\000\0220\n\014drop_columns\030\005 \001"
+  "(\0132\030.greptime.v1.DropColumnsH\000\0220\n\014rename"
+  "_table\030\006 \001(\0132\030.greptime.v1.RenameTableH\000"
+  "\022=\n\023modify_column_types\030\007 \001(\0132\036.greptime"
+  ".v1.ModifyColumnTypesH\000\0229\n\021set_table_opt"
+  "ions\030\010 \001(\0132\034.greptime.v1.SetTableOptions"
+  "H\000\022=\n\023unset_table_options\030\013 \001(\0132\036.grepti"
+  "me.v1.UnsetTableOptionsH\000\022*\n\tset_index\030\014"
+  " \001(\0132\025.greptime.v1.SetIndexH\000\022.\n\013unset_i"
+  "ndex\030\r \001(\0132\027.greptime.v1.UnsetIndexH\000\0222\n"
+  "\rdrop_defaults\030\016 \001(\0132\031.greptime.v1.DropD"
+  "efaultsH\000\022.\n\013set_indexes\030\017 \001(\0132\027.greptim"
+  "e.v1.SetIndexesH\000\0222\n\runset_indexes\030\020 \001(\013"
+  "2\031.greptime.v1.UnsetIndexesH\000\0220\n\014set_def"
+  "aults\030\021 \001(\0132\030.greptime.v1.SetDefaultsH\000B"
+  "\006\n\004kind\"\"\n\013DropDefault\022\023\n\013column_name\030\001 "
+  "\001(\t\"8\n\nSetIndexes\022*\n\013set_indexes\030\001 \003(\0132\025"
+  ".greptime.v1.SetIndex\">\n\014UnsetIndexes\022.\n"
+  "\runset_indexes\030\001 \003(\0132\027.greptime.v1.Unset"
+  "Index\"=\n\nSetDefault\022\023\n\013column_name\030\001 \001(\t"
+  "\022\032\n\022default_constraint\030\002 \001(\014\"\237\001\n\010SetInde"
+  "x\022,\n\010fulltext\030\001 \001(\0132\030.greptime.v1.SetFul"
+  "ltextH\000\022,\n\010inverted\030\002 \001(\0132\030.greptime.v1."
+  "SetInvertedH\000\022,\n\010skipping\030\003 \001(\0132\030.grepti"
+  "me.v1.SetSkippingH\000B\t\n\007options\"\247\001\n\nUnset"
+  "Index\022.\n\010fulltext\030\001 \001(\0132\032.greptime.v1.Un"
+  "setFulltextH\000\022.\n\010inverted\030\002 \001(\0132\032.grepti"
+  "me.v1.UnsetInvertedH\000\022.\n\010skipping\030\003 \001(\0132"
+  "\032.greptime.v1.UnsetSkippingH\000B\t\n\007options"
+  "\"\216\001\n\rDropTableExpr\022\024\n\014catalog_name\030\001 \001(\t"
+  "\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntable_name\030\003 \001("
+  "\t\022&\n\010table_id\030\004 \001(\0132\024.greptime.v1.TableI"
+  "d\022\026\n\016drop_if_exists\030\005 \001(\010\"\314\001\n\022CreateData"
+  "baseExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema"
+  "_name\030\002 \001(\t\022\034\n\024create_if_not_exists\030\003 \001("
+  "\010\022=\n\007options\030\004 \003(\0132,.greptime.v1.CreateD"
+  "atabaseExpr.OptionsEntry\032.\n\014OptionsEntry"
+  "\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\250\001\n\021Tru"
+  "ncateTableExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013"
+  "schema_name\030\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\022&\n"
+  "\010table_id\030\004 \001(\0132\024.greptime.v1.TableId\022,\n"
+  "\013time_ranges\030\005 \001(\0132\027.greptime.v1.TimeRan"
+  "ges\"U\n\020DropDatabaseExpr\022\024\n\014catalog_name\030"
+  "\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\026\n\016drop_if_ex"
+  "ists\030\003 \001(\010\"9\n\nAddColumns\022+\n\013add_columns\030"
+  "\001 \003(\0132\026.greptime.v1.AddColumn\"\?\n\014DropDef"
+  "aults\022/\n\rdrop_defaults\030\001 \003(\0132\030.greptime."
+  "v1.DropDefault\"<\n\013SetDefaults\022-\n\014set_def"
+  "aults\030\001 \003(\0132\027.greptime.v1.SetDefault\"<\n\013"
+  "DropColumns\022-\n\014drop_columns\030\001 \003(\0132\027.grep"
+  "time.v1.DropColumn\"O\n\021ModifyColumnTypes\022"
+  ":\n\023modify_column_types\030\001 \003(\0132\035.greptime."
+  "v1.ModifyColumnType\"%\n\013RenameTable\022\026\n\016ne"
+  "w_table_name\030\001 \001(\t\"\204\001\n\tAddColumn\022*\n\ncolu"
+  "mn_def\030\001 \001(\0132\026.greptime.v1.ColumnDef\0220\n\010"
+  "location\030\003 \001(\0132\036.greptime.v1.AddColumnLo"
+  "cation\022\031\n\021add_if_not_exists\030\004 \001(\010\"\236\001\n\020Mo"
+  "difyColumnType\022\023\n\013column_name\030\001 \001(\t\0220\n\013t"
+  "arget_type\030\002 \001(\0162\033.greptime.v1.ColumnDat"
+  "aType\022C\n\025target_type_extension\030\003 \001(\0132$.g"
+  "reptime.v1.ColumnDataTypeExtension\"$\n\006Op"
+  "tion\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t\"=\n\017SetT"
+  "ableOptions\022*\n\rtable_options\030\001 \003(\0132\023.gre"
+  "ptime.v1.Option\"!\n\021UnsetTableOptions\022\014\n\004"
+  "keys\030\001 \003(\t\"\032\n\nDropColumn\022\014\n\004name\030\001 \001(\t\"\025"
+  "\n\007TableId\022\n\n\002id\030\001 \001(\r\"\024\n\006FlowId\022\n\n\002id\030\001 "
+  "\001(\r\"\254\002\n\tColumnDef\022\014\n\004name\030\001 \001(\t\022.\n\tdata_"
+  "type\030\002 \001(\0162\033.greptime.v1.ColumnDataType\022"
+  "\023\n\013is_nullable\030\003 \001(\010\022\032\n\022default_constrai"
+  "nt\030\004 \001(\014\0220\n\rsemantic_type\030\005 \001(\0162\031.grepti"
+  "me.v1.SemanticType\022\017\n\007comment\030\006 \001(\t\022@\n\022d"
+  "atatype_extension\030\007 \001(\0132$.greptime.v1.Co"
+  "lumnDataTypeExtension\022+\n\007options\030\010 \001(\0132\032"
+  ".greptime.v1.ColumnOptions\"\230\001\n\021AddColumn"
+  "Location\022B\n\rlocation_type\030\001 \001(\0162+.grepti"
+  "me.v1.AddColumnLocation.LocationType\022\031\n\021"
+  "after_column_name\030\002 \001(\t\"$\n\014LocationType\022"
+  "\t\n\005FIRST\020\000\022\t\n\005AFTER\020\001\"\324\001\n\013SetFulltext\022\023\n"
+  "\013column_name\030\001 \001(\t\022\016\n\006enable\030\002 \001(\010\022\'\n\010an"
+  "alyzer\030\003 \001(\0162\025.greptime.v1.Analyzer\022\026\n\016c"
+  "ase_sensitive\030\004 \001(\010\022-\n\007backend\030\005 \001(\0162\034.g"
+  "reptime.v1.FulltextBackend\022\023\n\013granularit"
+  "y\030\006 \001(\004\022\033\n\023false_positive_rate\030\007 \001(\001\"$\n\r"
+  "UnsetFulltext\022\023\n\013column_name\030\001 \001(\t\"\"\n\013Se"
+  "tInverted\022\023\n\013column_name\030\001 \001(\t\"$\n\rUnsetI"
+  "nverted\022\023\n\013column_name\030\001 \001(\t\"\241\001\n\013SetSkip"
+  "ping\022\023\n\013column_name\030\001 \001(\t\022\016\n\006enable\030\002 \001("
+  "\010\022\023\n\013granularity\030\003 \001(\004\022;\n\023skipping_index"
+  "_type\030\004 \001(\0162\036.greptime.v1.SkippingIndexT"
+  "ype\022\033\n\023false_positive_rate\030\005 \001(\001\"$\n\rUnse"
+  "tSkipping\022\023\n\013column_name\030\001 \001(\t\"\314\001\n\021Alter"
+  "DatabaseExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013sc"
+  "hema_name\030\002 \001(\t\022\?\n\024set_database_options\030"
+  "\003 \001(\0132\037.greptime.v1.SetDatabaseOptionsH\000"
+  "\022C\n\026unset_database_options\030\004 \001(\0132!.grept"
+  "ime.v1.UnsetDatabaseOptionsH\000B\006\n\004kind\"G\n"
+  "\022SetDatabaseOptions\0221\n\024set_database_opti"
+  "ons\030\001 \003(\0132\023.greptime.v1.Option\"$\n\024UnsetD"
+  "atabaseOptions\022\014\n\004keys\030\001 \003(\t\"\305\003\n\021CreateT"
+  "riggerExpr\022\024\n\014catalog_name\030\001 \001(\t\022\024\n\014trig"
+  "ger_name\030\002 \001(\t\022\034\n\024create_if_not_exists\030\003"
+  " \001(\010\022\013\n\003sql\030\004 \001(\t\022,\n\010channels\030\005 \003(\0132\032.gr"
+  "eptime.v1.NotifyChannel\022:\n\006labels\030\006 \003(\0132"
+  "*.greptime.v1.CreateTriggerExpr.LabelsEn"
+  "try\022D\n\013annotations\030\007 \003(\0132/.greptime.v1.C"
+  "reateTriggerExpr.AnnotationsEntry\022+\n\010int"
+  "erval\030\010 \001(\0132\031.google.protobuf.Duration\022\031"
+  "\n\021raw_interval_expr\030\t \001(\t\032-\n\013LabelsEntry"
+  "\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\0322\n\020Anno"
+  "tationsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t"
+  ":\0028\001\"]\n\rNotifyChannel\022\014\n\004name\030\001 \001(\t\022.\n\007w"
+  "ebhook\030\002 \001(\0132\033.greptime.v1.WebhookOption"
+  "sH\000B\016\n\014channel_type\"\177\n\016WebhookOptions\022\013\n"
+  "\003url\030\001 \001(\t\0223\n\004opts\030\002 \003(\0132%.greptime.v1.W"
+  "ebhookOptions.OptsEntry\032+\n\tOptsEntry\022\013\n\003"
+  "key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"U\n\017DropTrig"
+  "gerExpr\022\024\n\014catalog_name\030\001 \001(\t\022\024\n\014trigger"
+  "_name\030\002 \001(\t\022\026\n\016drop_if_exists\030\003 \001(\010*$\n\010A"
+  "nalyzer\022\013\n\007ENGLISH\020\000\022\013\n\007CHINESE\020\001*)\n\017Ful"
+  "ltextBackend\022\013\n\007TANTIVY\020\000\022\t\n\005BLOOM\020\001*%\n\021"
+  "SkippingIndexType\022\020\n\014BLOOM_FILTER\020\000BL\n\016i"
+  "o.greptime.v1B\003DdlZ5github.com/GreptimeT"
+  "eam/greptime-proto/go/greptime/v1b\006proto"
+  "3"
   ;
-static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2fddl_2eproto_deps[1] = {
+static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2fddl_2eproto_deps[2] = {
+  &::descriptor_table_google_2fprotobuf_2fduration_2eproto,
   &::descriptor_table_greptime_2fv1_2fcommon_2eproto,
 };
 static ::_pbi::once_flag descriptor_table_greptime_2fv1_2fddl_2eproto_once;
 const ::_pbi::DescriptorTable descriptor_table_greptime_2fv1_2fddl_2eproto = {
-    false, false, 6915, descriptor_table_protodef_greptime_2fv1_2fddl_2eproto,
+    false, false, 7001, descriptor_table_protodef_greptime_2fv1_2fddl_2eproto,
     "greptime/v1/ddl.proto",
-    &descriptor_table_greptime_2fv1_2fddl_2eproto_once, descriptor_table_greptime_2fv1_2fddl_2eproto_deps, 1, 52,
+    &descriptor_table_greptime_2fv1_2fddl_2eproto_once, descriptor_table_greptime_2fv1_2fddl_2eproto_deps, 2, 52,
     schemas, file_default_instances, TableStruct_greptime_2fv1_2fddl_2eproto::offsets,
     file_level_metadata_greptime_2fv1_2fddl_2eproto, file_level_enum_descriptors_greptime_2fv1_2fddl_2eproto,
     file_level_service_descriptors_greptime_2fv1_2fddl_2eproto,
@@ -14916,8 +14922,19 @@ void CreateTriggerExpr_AnnotationsEntry_DoNotUse::MergeFrom(const CreateTriggerE
 
 class CreateTriggerExpr::_Internal {
  public:
+  static const ::PROTOBUF_NAMESPACE_ID::Duration& interval(const CreateTriggerExpr* msg);
 };
 
+const ::PROTOBUF_NAMESPACE_ID::Duration&
+CreateTriggerExpr::_Internal::interval(const CreateTriggerExpr* msg) {
+  return *msg->_impl_.interval_;
+}
+void CreateTriggerExpr::clear_interval() {
+  if (GetArenaForAllocation() == nullptr && _impl_.interval_ != nullptr) {
+    delete _impl_.interval_;
+  }
+  _impl_.interval_ = nullptr;
+}
 CreateTriggerExpr::CreateTriggerExpr(::PROTOBUF_NAMESPACE_ID::Arena* arena,
                          bool is_message_owned)
   : ::PROTOBUF_NAMESPACE_ID::Message(arena, is_message_owned) {
@@ -14937,7 +14954,8 @@ CreateTriggerExpr::CreateTriggerExpr(const CreateTriggerExpr& from)
     , decltype(_impl_.catalog_name_){}
     , decltype(_impl_.trigger_name_){}
     , decltype(_impl_.sql_){}
-    , decltype(_impl_.interval_){}
+    , decltype(_impl_.raw_interval_expr_){}
+    , decltype(_impl_.interval_){nullptr}
     , decltype(_impl_.create_if_not_exists_){}
     , /*decltype(_impl_._cached_size_)*/{}};
 
@@ -14968,9 +14986,18 @@ CreateTriggerExpr::CreateTriggerExpr(const CreateTriggerExpr& from)
     _this->_impl_.sql_.Set(from._internal_sql(), 
       _this->GetArenaForAllocation());
   }
-  ::memcpy(&_impl_.interval_, &from._impl_.interval_,
-    static_cast<size_t>(reinterpret_cast<char*>(&_impl_.create_if_not_exists_) -
-    reinterpret_cast<char*>(&_impl_.interval_)) + sizeof(_impl_.create_if_not_exists_));
+  _impl_.raw_interval_expr_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.raw_interval_expr_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (!from._internal_raw_interval_expr().empty()) {
+    _this->_impl_.raw_interval_expr_.Set(from._internal_raw_interval_expr(), 
+      _this->GetArenaForAllocation());
+  }
+  if (from._internal_has_interval()) {
+    _this->_impl_.interval_ = new ::PROTOBUF_NAMESPACE_ID::Duration(*from._impl_.interval_);
+  }
+  _this->_impl_.create_if_not_exists_ = from._impl_.create_if_not_exists_;
   // @@protoc_insertion_point(copy_constructor:greptime.v1.CreateTriggerExpr)
 }
 
@@ -14985,7 +15012,8 @@ inline void CreateTriggerExpr::SharedCtor(
     , decltype(_impl_.catalog_name_){}
     , decltype(_impl_.trigger_name_){}
     , decltype(_impl_.sql_){}
-    , decltype(_impl_.interval_){uint64_t{0u}}
+    , decltype(_impl_.raw_interval_expr_){}
+    , decltype(_impl_.interval_){nullptr}
     , decltype(_impl_.create_if_not_exists_){false}
     , /*decltype(_impl_._cached_size_)*/{}
   };
@@ -15001,6 +15029,10 @@ inline void CreateTriggerExpr::SharedCtor(
   #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
     _impl_.sql_.Set("", GetArenaForAllocation());
   #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  _impl_.raw_interval_expr_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.raw_interval_expr_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
 }
 
 CreateTriggerExpr::~CreateTriggerExpr() {
@@ -15023,6 +15055,8 @@ inline void CreateTriggerExpr::SharedDtor() {
   _impl_.catalog_name_.Destroy();
   _impl_.trigger_name_.Destroy();
   _impl_.sql_.Destroy();
+  _impl_.raw_interval_expr_.Destroy();
+  if (this != internal_default_instance()) delete _impl_.interval_;
 }
 
 void CreateTriggerExpr::ArenaDtor(void* object) {
@@ -15046,9 +15080,12 @@ void CreateTriggerExpr::Clear() {
   _impl_.catalog_name_.ClearToEmpty();
   _impl_.trigger_name_.ClearToEmpty();
   _impl_.sql_.ClearToEmpty();
-  ::memset(&_impl_.interval_, 0, static_cast<size_t>(
-      reinterpret_cast<char*>(&_impl_.create_if_not_exists_) -
-      reinterpret_cast<char*>(&_impl_.interval_)) + sizeof(_impl_.create_if_not_exists_));
+  _impl_.raw_interval_expr_.ClearToEmpty();
+  if (GetArenaForAllocation() == nullptr && _impl_.interval_ != nullptr) {
+    delete _impl_.interval_;
+  }
+  _impl_.interval_ = nullptr;
+  _impl_.create_if_not_exists_ = false;
   _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
 }
 
@@ -15135,14 +15172,24 @@ const char* CreateTriggerExpr::_InternalParse(const char* ptr, ::_pbi::ParseCont
         } else
           goto handle_unusual;
         continue;
-      // uint64 interval = 8;
+      // .google.protobuf.Duration interval = 8;
       case 8:
-        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 64)) {
-          _impl_.interval_ = ::PROTOBUF_NAMESPACE_ID::internal::ReadVarint64(&ptr);
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 66)) {
+          ptr = ctx->ParseMessage(_internal_mutable_interval(), ptr);
           CHK_(ptr);
         } else
           goto handle_unusual;
         continue;
+      // string raw_interval_expr = 9;
+      case 9:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 74)) {
+          auto str = _internal_mutable_raw_interval_expr();
+          ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+          CHK_(::_pbi::VerifyUTF8(str, "greptime.v1.CreateTriggerExpr.raw_interval_expr"));
+        } else
+          goto handle_unusual;
+        continue;
       default:
         goto handle_unusual;
     }  // switch
@@ -15276,10 +15323,21 @@ uint8_t* CreateTriggerExpr::_InternalSerialize(
     }
   }
 
-  // uint64 interval = 8;
-  if (this->_internal_interval() != 0) {
-    target = stream->EnsureSpace(target);
-    target = ::_pbi::WireFormatLite::WriteUInt64ToArray(8, this->_internal_interval(), target);
+  // .google.protobuf.Duration interval = 8;
+  if (this->_internal_has_interval()) {
+    target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::
+      InternalWriteMessage(8, _Internal::interval(this),
+        _Internal::interval(this).GetCachedSize(), target, stream);
+  }
+
+  // string raw_interval_expr = 9;
+  if (!this->_internal_raw_interval_expr().empty()) {
+    ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::VerifyUtf8String(
+      this->_internal_raw_interval_expr().data(), static_cast<int>(this->_internal_raw_interval_expr().length()),
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::SERIALIZE,
+      "greptime.v1.CreateTriggerExpr.raw_interval_expr");
+    target = stream->WriteStringMaybeAliased(
+        9, this->_internal_raw_interval_expr(), target);
   }
 
   if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
@@ -15344,9 +15402,18 @@ size_t CreateTriggerExpr::ByteSizeLong() const {
         this->_internal_sql());
   }
 
-  // uint64 interval = 8;
-  if (this->_internal_interval() != 0) {
-    total_size += ::_pbi::WireFormatLite::UInt64SizePlusOne(this->_internal_interval());
+  // string raw_interval_expr = 9;
+  if (!this->_internal_raw_interval_expr().empty()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::StringSize(
+        this->_internal_raw_interval_expr());
+  }
+
+  // .google.protobuf.Duration interval = 8;
+  if (this->_internal_has_interval()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::MessageSize(
+        *_impl_.interval_);
   }
 
   // bool create_if_not_exists = 3;
@@ -15384,8 +15451,12 @@ void CreateTriggerExpr::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, cons
   if (!from._internal_sql().empty()) {
     _this->_internal_set_sql(from._internal_sql());
   }
-  if (from._internal_interval() != 0) {
-    _this->_internal_set_interval(from._internal_interval());
+  if (!from._internal_raw_interval_expr().empty()) {
+    _this->_internal_set_raw_interval_expr(from._internal_raw_interval_expr());
+  }
+  if (from._internal_has_interval()) {
+    _this->_internal_mutable_interval()->::PROTOBUF_NAMESPACE_ID::Duration::MergeFrom(
+        from._internal_interval());
   }
   if (from._internal_create_if_not_exists() != 0) {
     _this->_internal_set_create_if_not_exists(from._internal_create_if_not_exists());
@@ -15424,6 +15495,10 @@ void CreateTriggerExpr::InternalSwap(CreateTriggerExpr* other) {
       &_impl_.sql_, lhs_arena,
       &other->_impl_.sql_, rhs_arena
   );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &_impl_.raw_interval_expr_, lhs_arena,
+      &other->_impl_.raw_interval_expr_, rhs_arena
+  );
   ::PROTOBUF_NAMESPACE_ID::internal::memswap<
       PROTOBUF_FIELD_OFFSET(CreateTriggerExpr, _impl_.create_if_not_exists_)
       + sizeof(CreateTriggerExpr::_impl_.create_if_not_exists_)
diff --git a/c++/greptime/v1/ddl.pb.h b/c++/greptime/v1/ddl.pb.h
index 886ec0c..153e1c8 100644
--- a/c++/greptime/v1/ddl.pb.h
+++ b/c++/greptime/v1/ddl.pb.h
@@ -34,6 +34,7 @@
 #include <google/protobuf/map_field_inl.h>
 #include <google/protobuf/generated_enum_reflection.h>
 #include <google/protobuf/unknown_field_set.h>
+#include <google/protobuf/duration.pb.h>
 #include "greptime/v1/common.pb.h"
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
@@ -9020,6 +9021,7 @@ class CreateTriggerExpr final :
     kCatalogNameFieldNumber = 1,
     kTriggerNameFieldNumber = 2,
     kSqlFieldNumber = 4,
+    kRawIntervalExprFieldNumber = 9,
     kIntervalFieldNumber = 8,
     kCreateIfNotExistsFieldNumber = 3,
   };
@@ -9117,15 +9119,38 @@ class CreateTriggerExpr final :
   std::string* _internal_mutable_sql();
   public:
 
-  // uint64 interval = 8;
-  void clear_interval();
-  uint64_t interval() const;
-  void set_interval(uint64_t value);
+  // string raw_interval_expr = 9;
+  void clear_raw_interval_expr();
+  const std::string& raw_interval_expr() const;
+  template <typename ArgT0 = const std::string&, typename... ArgT>
+  void set_raw_interval_expr(ArgT0&& arg0, ArgT... args);
+  std::string* mutable_raw_interval_expr();
+  PROTOBUF_NODISCARD std::string* release_raw_interval_expr();
+  void set_allocated_raw_interval_expr(std::string* raw_interval_expr);
   private:
-  uint64_t _internal_interval() const;
-  void _internal_set_interval(uint64_t value);
+  const std::string& _internal_raw_interval_expr() const;
+  inline PROTOBUF_ALWAYS_INLINE void _internal_set_raw_interval_expr(const std::string& value);
+  std::string* _internal_mutable_raw_interval_expr();
   public:
 
+  // .google.protobuf.Duration interval = 8;
+  bool has_interval() const;
+  private:
+  bool _internal_has_interval() const;
+  public:
+  void clear_interval();
+  const ::PROTOBUF_NAMESPACE_ID::Duration& interval() const;
+  PROTOBUF_NODISCARD ::PROTOBUF_NAMESPACE_ID::Duration* release_interval();
+  ::PROTOBUF_NAMESPACE_ID::Duration* mutable_interval();
+  void set_allocated_interval(::PROTOBUF_NAMESPACE_ID::Duration* interval);
+  private:
+  const ::PROTOBUF_NAMESPACE_ID::Duration& _internal_interval() const;
+  ::PROTOBUF_NAMESPACE_ID::Duration* _internal_mutable_interval();
+  public:
+  void unsafe_arena_set_allocated_interval(
+      ::PROTOBUF_NAMESPACE_ID::Duration* interval);
+  ::PROTOBUF_NAMESPACE_ID::Duration* unsafe_arena_release_interval();
+
   // bool create_if_not_exists = 3;
   void clear_create_if_not_exists();
   bool create_if_not_exists() const;
@@ -9157,7 +9182,8 @@ class CreateTriggerExpr final :
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr catalog_name_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr trigger_name_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr sql_;
-    uint64_t interval_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr raw_interval_expr_;
+    ::PROTOBUF_NAMESPACE_ID::Duration* interval_;
     bool create_if_not_exists_;
     mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   };
@@ -17749,24 +17775,139 @@ CreateTriggerExpr::mutable_annotations() {
   return _internal_mutable_annotations();
 }
 
-// uint64 interval = 8;
-inline void CreateTriggerExpr::clear_interval() {
-  _impl_.interval_ = uint64_t{0u};
+// .google.protobuf.Duration interval = 8;
+inline bool CreateTriggerExpr::_internal_has_interval() const {
+  return this != internal_default_instance() && _impl_.interval_ != nullptr;
 }
-inline uint64_t CreateTriggerExpr::_internal_interval() const {
-  return _impl_.interval_;
+inline bool CreateTriggerExpr::has_interval() const {
+  return _internal_has_interval();
 }
-inline uint64_t CreateTriggerExpr::interval() const {
+inline const ::PROTOBUF_NAMESPACE_ID::Duration& CreateTriggerExpr::_internal_interval() const {
+  const ::PROTOBUF_NAMESPACE_ID::Duration* p = _impl_.interval_;
+  return p != nullptr ? *p : reinterpret_cast<const ::PROTOBUF_NAMESPACE_ID::Duration&>(
+      ::PROTOBUF_NAMESPACE_ID::_Duration_default_instance_);
+}
+inline const ::PROTOBUF_NAMESPACE_ID::Duration& CreateTriggerExpr::interval() const {
   // @@protoc_insertion_point(field_get:greptime.v1.CreateTriggerExpr.interval)
   return _internal_interval();
 }
-inline void CreateTriggerExpr::_internal_set_interval(uint64_t value) {
-  
-  _impl_.interval_ = value;
+inline void CreateTriggerExpr::unsafe_arena_set_allocated_interval(
+    ::PROTOBUF_NAMESPACE_ID::Duration* interval) {
+  if (GetArenaForAllocation() == nullptr) {
+    delete reinterpret_cast<::PROTOBUF_NAMESPACE_ID::MessageLite*>(_impl_.interval_);
+  }
+  _impl_.interval_ = interval;
+  if (interval) {
+    
+  } else {
+    
+  }
+  // @@protoc_insertion_point(field_unsafe_arena_set_allocated:greptime.v1.CreateTriggerExpr.interval)
 }
-inline void CreateTriggerExpr::set_interval(uint64_t value) {
-  _internal_set_interval(value);
-  // @@protoc_insertion_point(field_set:greptime.v1.CreateTriggerExpr.interval)
+inline ::PROTOBUF_NAMESPACE_ID::Duration* CreateTriggerExpr::release_interval() {
+  
+  ::PROTOBUF_NAMESPACE_ID::Duration* temp = _impl_.interval_;
+  _impl_.interval_ = nullptr;
+#ifdef PROTOBUF_FORCE_COPY_IN_RELEASE
+  auto* old =  reinterpret_cast<::PROTOBUF_NAMESPACE_ID::MessageLite*>(temp);
+  temp = ::PROTOBUF_NAMESPACE_ID::internal::DuplicateIfNonNull(temp);
+  if (GetArenaForAllocation() == nullptr) { delete old; }
+#else  // PROTOBUF_FORCE_COPY_IN_RELEASE
+  if (GetArenaForAllocation() != nullptr) {
+    temp = ::PROTOBUF_NAMESPACE_ID::internal::DuplicateIfNonNull(temp);
+  }
+#endif  // !PROTOBUF_FORCE_COPY_IN_RELEASE
+  return temp;
+}
+inline ::PROTOBUF_NAMESPACE_ID::Duration* CreateTriggerExpr::unsafe_arena_release_interval() {
+  // @@protoc_insertion_point(field_release:greptime.v1.CreateTriggerExpr.interval)
+  
+  ::PROTOBUF_NAMESPACE_ID::Duration* temp = _impl_.interval_;
+  _impl_.interval_ = nullptr;
+  return temp;
+}
+inline ::PROTOBUF_NAMESPACE_ID::Duration* CreateTriggerExpr::_internal_mutable_interval() {
+  
+  if (_impl_.interval_ == nullptr) {
+    auto* p = CreateMaybeMessage<::PROTOBUF_NAMESPACE_ID::Duration>(GetArenaForAllocation());
+    _impl_.interval_ = p;
+  }
+  return _impl_.interval_;
+}
+inline ::PROTOBUF_NAMESPACE_ID::Duration* CreateTriggerExpr::mutable_interval() {
+  ::PROTOBUF_NAMESPACE_ID::Duration* _msg = _internal_mutable_interval();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.CreateTriggerExpr.interval)
+  return _msg;
+}
+inline void CreateTriggerExpr::set_allocated_interval(::PROTOBUF_NAMESPACE_ID::Duration* interval) {
+  ::PROTOBUF_NAMESPACE_ID::Arena* message_arena = GetArenaForAllocation();
+  if (message_arena == nullptr) {
+    delete reinterpret_cast< ::PROTOBUF_NAMESPACE_ID::MessageLite*>(_impl_.interval_);
+  }
+  if (interval) {
+    ::PROTOBUF_NAMESPACE_ID::Arena* submessage_arena =
+        ::PROTOBUF_NAMESPACE_ID::Arena::InternalGetOwningArena(
+                reinterpret_cast<::PROTOBUF_NAMESPACE_ID::MessageLite*>(interval));
+    if (message_arena != submessage_arena) {
+      interval = ::PROTOBUF_NAMESPACE_ID::internal::GetOwnedMessage(
+          message_arena, interval, submessage_arena);
+    }
+    
+  } else {
+    
+  }
+  _impl_.interval_ = interval;
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.CreateTriggerExpr.interval)
+}
+
+// string raw_interval_expr = 9;
+inline void CreateTriggerExpr::clear_raw_interval_expr() {
+  _impl_.raw_interval_expr_.ClearToEmpty();
+}
+inline const std::string& CreateTriggerExpr::raw_interval_expr() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.CreateTriggerExpr.raw_interval_expr)
+  return _internal_raw_interval_expr();
+}
+template <typename ArgT0, typename... ArgT>
+inline PROTOBUF_ALWAYS_INLINE
+void CreateTriggerExpr::set_raw_interval_expr(ArgT0&& arg0, ArgT... args) {
+ 
+ _impl_.raw_interval_expr_.Set(static_cast<ArgT0 &&>(arg0), args..., GetArenaForAllocation());
+  // @@protoc_insertion_point(field_set:greptime.v1.CreateTriggerExpr.raw_interval_expr)
+}
+inline std::string* CreateTriggerExpr::mutable_raw_interval_expr() {
+  std::string* _s = _internal_mutable_raw_interval_expr();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.CreateTriggerExpr.raw_interval_expr)
+  return _s;
+}
+inline const std::string& CreateTriggerExpr::_internal_raw_interval_expr() const {
+  return _impl_.raw_interval_expr_.Get();
+}
+inline void CreateTriggerExpr::_internal_set_raw_interval_expr(const std::string& value) {
+  
+  _impl_.raw_interval_expr_.Set(value, GetArenaForAllocation());
+}
+inline std::string* CreateTriggerExpr::_internal_mutable_raw_interval_expr() {
+  
+  return _impl_.raw_interval_expr_.Mutable(GetArenaForAllocation());
+}
+inline std::string* CreateTriggerExpr::release_raw_interval_expr() {
+  // @@protoc_insertion_point(field_release:greptime.v1.CreateTriggerExpr.raw_interval_expr)
+  return _impl_.raw_interval_expr_.Release();
+}
+inline void CreateTriggerExpr::set_allocated_raw_interval_expr(std::string* raw_interval_expr) {
+  if (raw_interval_expr != nullptr) {
+    
+  } else {
+    
+  }
+  _impl_.raw_interval_expr_.SetAllocated(raw_interval_expr, GetArenaForAllocation());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (_impl_.raw_interval_expr_.IsDefault()) {
+    _impl_.raw_interval_expr_.Set("", GetArenaForAllocation());
+  }
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.CreateTriggerExpr.raw_interval_expr)
 }
 
 // -------------------------------------------------------------------
diff --git a/go/greptime/v1/ddl.pb.go b/go/greptime/v1/ddl.pb.go
index 85ad5ef..75c8f51 100644
--- a/go/greptime/v1/ddl.pb.go
+++ b/go/greptime/v1/ddl.pb.go
@@ -23,6 +23,7 @@ package v1
 import (
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	durationpb "google.golang.org/protobuf/types/known/durationpb"
 	reflect "reflect"
 	sync "sync"
 )
@@ -3288,9 +3289,10 @@ type CreateTriggerExpr struct {
 	// The user-defined labels.
 	Labels map[string]string `protobuf:"bytes,6,rep,name=labels,proto3" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	// The user-defined annotations.
-	Annotations map[string]string `protobuf:"bytes,7,rep,name=annotations,proto3" json:"annotations,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-	// The execution interval for sql query in seconds.
-	Interval uint64 `protobuf:"varint,8,opt,name=interval,proto3" json:"interval,omitempty"`
+	Annotations map[string]string    `protobuf:"bytes,7,rep,name=annotations,proto3" json:"annotations,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	Interval    *durationpb.Duration `protobuf:"bytes,8,opt,name=interval,proto3" json:"interval,omitempty"`
+	// The raw interval expression, e.g., '1 minute'::INTERVAL.
+	RawIntervalExpr string `protobuf:"bytes,9,opt,name=raw_interval_expr,json=rawIntervalExpr,proto3" json:"raw_interval_expr,omitempty"`
 }
 
 func (x *CreateTriggerExpr) Reset() {
@@ -3374,11 +3376,18 @@ func (x *CreateTriggerExpr) GetAnnotations() map[string]string {
 	return nil
 }
 
-func (x *CreateTriggerExpr) GetInterval() uint64 {
+func (x *CreateTriggerExpr) GetInterval() *durationpb.Duration {
 	if x != nil {
 		return x.Interval
 	}
-	return 0
+	return nil
+}
+
+func (x *CreateTriggerExpr) GetRawIntervalExpr() string {
+	if x != nil {
+		return x.RawIntervalExpr
+	}
+	return ""
 }
 
 // The notification channel for trigger.
@@ -3581,7 +3590,9 @@ var File_greptime_v1_ddl_proto protoreflect.FileDescriptor
 var file_greptime_v1_ddl_proto_rawDesc = []byte{
 	0x0a, 0x15, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76, 0x31, 0x2f, 0x64, 0x64,
 	0x6c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0b, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d,
-	0x65, 0x2e, 0x76, 0x31, 0x1a, 0x18, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76,
+	0x65, 0x2e, 0x76, 0x31, 0x1a, 0x1e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x18, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76,
 	0x31, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xa6,
 	0x05, 0x0a, 0x0a, 0x44, 0x64, 0x6c, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x4a, 0x0a,
 	0x0f, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x5f, 0x64, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65,
@@ -4067,7 +4078,7 @@ var file_greptime_v1_ddl_proto_rawDesc = []byte{
 	0x74, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73,
 	0x22, 0x2a, 0x0a, 0x14, 0x55, 0x6e, 0x73, 0x65, 0x74, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73,
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+	0x18, 0x01, 0x20, 0x03, 0x28, 0x09, 0x52, 0x04, 0x6b, 0x65, 0x79, 0x73, 0x22, 0xc9, 0x04, 0x0a,
 	0x11, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x54, 0x72, 0x69, 0x67, 0x67, 0x65, 0x72, 0x45, 0x78,
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@@ -4090,54 +4101,58 @@ var file_greptime_v1_ddl_proto_rawDesc = []byte{
 	0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2e, 0x76, 0x31, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74,
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+	0x65, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -4218,6 +4233,7 @@ var file_greptime_v1_ddl_proto_goTypes = []interface{}{
 	(*ColumnDataTypeExtension)(nil),     // 60: greptime.v1.ColumnDataTypeExtension
 	(SemanticType)(0),                   // 61: greptime.v1.SemanticType
 	(*ColumnOptions)(nil),               // 62: greptime.v1.ColumnOptions
+	(*durationpb.Duration)(nil),         // 63: google.protobuf.Duration
 }
 var file_greptime_v1_ddl_proto_depIdxs = []int32{
 	18, // 0: greptime.v1.DdlRequest.create_database:type_name -> greptime.v1.CreateDatabaseExpr
@@ -4288,13 +4304,14 @@ var file_greptime_v1_ddl_proto_depIdxs = []int32{
 	47, // 65: greptime.v1.CreateTriggerExpr.channels:type_name -> greptime.v1.NotifyChannel
 	53, // 66: greptime.v1.CreateTriggerExpr.labels:type_name -> greptime.v1.CreateTriggerExpr.LabelsEntry
 	54, // 67: greptime.v1.CreateTriggerExpr.annotations:type_name -> greptime.v1.CreateTriggerExpr.AnnotationsEntry
-	48, // 68: greptime.v1.NotifyChannel.webhook:type_name -> greptime.v1.WebhookOptions
-	55, // 69: greptime.v1.WebhookOptions.opts:type_name -> greptime.v1.WebhookOptions.OptsEntry
-	70, // [70:70] is the sub-list for method output_type
-	70, // [70:70] is the sub-list for method input_type
-	70, // [70:70] is the sub-list for extension type_name
-	70, // [70:70] is the sub-list for extension extendee
-	0,  // [0:70] is the sub-list for field type_name
+	63, // 68: greptime.v1.CreateTriggerExpr.interval:type_name -> google.protobuf.Duration
+	48, // 69: greptime.v1.NotifyChannel.webhook:type_name -> greptime.v1.WebhookOptions
+	55, // 70: greptime.v1.WebhookOptions.opts:type_name -> greptime.v1.WebhookOptions.OptsEntry
+	71, // [71:71] is the sub-list for method output_type
+	71, // [71:71] is the sub-list for method input_type
+	71, // [71:71] is the sub-list for extension type_name
+	71, // [71:71] is the sub-list for extension extendee
+	0,  // [0:71] is the sub-list for field type_name
 }
 
 func init() { file_greptime_v1_ddl_proto_init() }
diff --git a/java/src/main/java/io/greptime/v1/Ddl.java b/java/src/main/java/io/greptime/v1/Ddl.java
index 9305902..24deeb8 100644
--- a/java/src/main/java/io/greptime/v1/Ddl.java
+++ b/java/src/main/java/io/greptime/v1/Ddl.java
@@ -45170,14 +45170,39 @@ java.lang.String defaultValue);
         java.lang.String key);
 
     /**
-     * <pre>
-     * The execution interval for sql query in seconds.
-     * </pre>
-     *
-     * <code>uint64 interval = 8;</code>
+     * <code>.google.protobuf.Duration interval = 8;</code>
+     * @return Whether the interval field is set.
+     */
+    boolean hasInterval();
+    /**
+     * <code>.google.protobuf.Duration interval = 8;</code>
      * @return The interval.
      */
-    long getInterval();
+    com.google.protobuf.Duration getInterval();
+    /**
+     * <code>.google.protobuf.Duration interval = 8;</code>
+     */
+    com.google.protobuf.DurationOrBuilder getIntervalOrBuilder();
+
+    /**
+     * <pre>
+     * The raw interval expression, e.g., '1 minute'::INTERVAL.
+     * </pre>
+     *
+     * <code>string raw_interval_expr = 9;</code>
+     * @return The rawIntervalExpr.
+     */
+    java.lang.String getRawIntervalExpr();
+    /**
+     * <pre>
+     * The raw interval expression, e.g., '1 minute'::INTERVAL.
+     * </pre>
+     *
+     * <code>string raw_interval_expr = 9;</code>
+     * @return The bytes for rawIntervalExpr.
+     */
+    com.google.protobuf.ByteString
+        getRawIntervalExprBytes();
   }
   /**
    * <pre>
@@ -45200,6 +45225,7 @@ java.lang.String defaultValue);
       triggerName_ = "";
       sql_ = "";
       channels_ = java.util.Collections.emptyList();
+      rawIntervalExpr_ = "";
     }
 
     @java.lang.Override
@@ -45291,9 +45317,23 @@ java.lang.String defaultValue);
                   annotations__.getKey(), annotations__.getValue());
               break;
             }
-            case 64: {
+            case 66: {
+              com.google.protobuf.Duration.Builder subBuilder = null;
+              if (interval_ != null) {
+                subBuilder = interval_.toBuilder();
+              }
+              interval_ = input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(interval_);
+                interval_ = subBuilder.buildPartial();
+              }
 
-              interval_ = input.readUInt64();
+              break;
+            }
+            case 74: {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              rawIntervalExpr_ = s;
               break;
             }
             default: {
@@ -45735,18 +45775,75 @@ java.lang.String defaultValue);
     }
 
     public static final int INTERVAL_FIELD_NUMBER = 8;
-    private long interval_;
+    private com.google.protobuf.Duration interval_;
     /**
-     * <pre>
-     * The execution interval for sql query in seconds.
-     * </pre>
-     *
-     * <code>uint64 interval = 8;</code>
+     * <code>.google.protobuf.Duration interval = 8;</code>
+     * @return Whether the interval field is set.
+     */
+    @java.lang.Override
+    public boolean hasInterval() {
+      return interval_ != null;
+    }
+    /**
+     * <code>.google.protobuf.Duration interval = 8;</code>
      * @return The interval.
      */
     @java.lang.Override
-    public long getInterval() {
-      return interval_;
+    public com.google.protobuf.Duration getInterval() {
+      return interval_ == null ? com.google.protobuf.Duration.getDefaultInstance() : interval_;
+    }
+    /**
+     * <code>.google.protobuf.Duration interval = 8;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.DurationOrBuilder getIntervalOrBuilder() {
+      return getInterval();
+    }
+
+    public static final int RAW_INTERVAL_EXPR_FIELD_NUMBER = 9;
+    private volatile java.lang.Object rawIntervalExpr_;
+    /**
+     * <pre>
+     * The raw interval expression, e.g., '1 minute'::INTERVAL.
+     * </pre>
+     *
+     * <code>string raw_interval_expr = 9;</code>
+     * @return The rawIntervalExpr.
+     */
+    @java.lang.Override
+    public java.lang.String getRawIntervalExpr() {
+      java.lang.Object ref = rawIntervalExpr_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        rawIntervalExpr_ = s;
+        return s;
+      }
+    }
+    /**
+     * <pre>
+     * The raw interval expression, e.g., '1 minute'::INTERVAL.
+     * </pre>
+     *
+     * <code>string raw_interval_expr = 9;</code>
+     * @return The bytes for rawIntervalExpr.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getRawIntervalExprBytes() {
+      java.lang.Object ref = rawIntervalExpr_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        rawIntervalExpr_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
     }
 
     private byte memoizedIsInitialized = -1;
@@ -45790,8 +45887,11 @@ java.lang.String defaultValue);
           internalGetAnnotations(),
           AnnotationsDefaultEntryHolder.defaultEntry,
           7);
-      if (interval_ != 0L) {
-        output.writeUInt64(8, interval_);
+      if (interval_ != null) {
+        output.writeMessage(8, getInterval());
+      }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(rawIntervalExpr_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 9, rawIntervalExpr_);
       }
       unknownFields.writeTo(output);
     }
@@ -45839,9 +45939,12 @@ java.lang.String defaultValue);
         size += com.google.protobuf.CodedOutputStream
             .computeMessageSize(7, annotations__);
       }
-      if (interval_ != 0L) {
+      if (interval_ != null) {
         size += com.google.protobuf.CodedOutputStream
-          .computeUInt64Size(8, interval_);
+          .computeMessageSize(8, getInterval());
+      }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(rawIntervalExpr_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(9, rawIntervalExpr_);
       }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
@@ -45872,8 +45975,13 @@ java.lang.String defaultValue);
           other.internalGetLabels())) return false;
       if (!internalGetAnnotations().equals(
           other.internalGetAnnotations())) return false;
-      if (getInterval()
-          != other.getInterval()) return false;
+      if (hasInterval() != other.hasInterval()) return false;
+      if (hasInterval()) {
+        if (!getInterval()
+            .equals(other.getInterval())) return false;
+      }
+      if (!getRawIntervalExpr()
+          .equals(other.getRawIntervalExpr())) return false;
       if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
@@ -45906,9 +46014,12 @@ java.lang.String defaultValue);
         hash = (37 * hash) + ANNOTATIONS_FIELD_NUMBER;
         hash = (53 * hash) + internalGetAnnotations().hashCode();
       }
-      hash = (37 * hash) + INTERVAL_FIELD_NUMBER;
-      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
-          getInterval());
+      if (hasInterval()) {
+        hash = (37 * hash) + INTERVAL_FIELD_NUMBER;
+        hash = (53 * hash) + getInterval().hashCode();
+      }
+      hash = (37 * hash) + RAW_INTERVAL_EXPR_FIELD_NUMBER;
+      hash = (53 * hash) + getRawIntervalExpr().hashCode();
       hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
@@ -46089,7 +46200,13 @@ java.lang.String defaultValue);
         }
         internalGetMutableLabels().clear();
         internalGetMutableAnnotations().clear();
-        interval_ = 0L;
+        if (intervalBuilder_ == null) {
+          interval_ = null;
+        } else {
+          interval_ = null;
+          intervalBuilder_ = null;
+        }
+        rawIntervalExpr_ = "";
 
         return this;
       }
@@ -46135,7 +46252,12 @@ java.lang.String defaultValue);
         result.labels_.makeImmutable();
         result.annotations_ = internalGetAnnotations();
         result.annotations_.makeImmutable();
-        result.interval_ = interval_;
+        if (intervalBuilder_ == null) {
+          result.interval_ = interval_;
+        } else {
+          result.interval_ = intervalBuilder_.build();
+        }
+        result.rawIntervalExpr_ = rawIntervalExpr_;
         onBuilt();
         return result;
       }
@@ -46229,8 +46351,12 @@ java.lang.String defaultValue);
             other.internalGetLabels());
         internalGetMutableAnnotations().mergeFrom(
             other.internalGetAnnotations());
-        if (other.getInterval() != 0L) {
-          setInterval(other.getInterval());
+        if (other.hasInterval()) {
+          mergeInterval(other.getInterval());
+        }
+        if (!other.getRawIntervalExpr().isEmpty()) {
+          rawIntervalExpr_ = other.rawIntervalExpr_;
+          onChanged();
         }
         this.mergeUnknownFields(other.unknownFields);
         onChanged();
@@ -47171,45 +47297,217 @@ java.lang.String defaultValue);
         return this;
       }
 
-      private long interval_ ;
+      private com.google.protobuf.Duration interval_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> intervalBuilder_;
       /**
-       * <pre>
-       * The execution interval for sql query in seconds.
-       * </pre>
-       *
-       * <code>uint64 interval = 8;</code>
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       * @return Whether the interval field is set.
+       */
+      public boolean hasInterval() {
+        return intervalBuilder_ != null || interval_ != null;
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
        * @return The interval.
        */
-      @java.lang.Override
-      public long getInterval() {
-        return interval_;
+      public com.google.protobuf.Duration getInterval() {
+        if (intervalBuilder_ == null) {
+          return interval_ == null ? com.google.protobuf.Duration.getDefaultInstance() : interval_;
+        } else {
+          return intervalBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      public Builder setInterval(com.google.protobuf.Duration value) {
+        if (intervalBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          interval_ = value;
+          onChanged();
+        } else {
+          intervalBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      public Builder setInterval(
+          com.google.protobuf.Duration.Builder builderForValue) {
+        if (intervalBuilder_ == null) {
+          interval_ = builderForValue.build();
+          onChanged();
+        } else {
+          intervalBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      public Builder mergeInterval(com.google.protobuf.Duration value) {
+        if (intervalBuilder_ == null) {
+          if (interval_ != null) {
+            interval_ =
+              com.google.protobuf.Duration.newBuilder(interval_).mergeFrom(value).buildPartial();
+          } else {
+            interval_ = value;
+          }
+          onChanged();
+        } else {
+          intervalBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      public Builder clearInterval() {
+        if (intervalBuilder_ == null) {
+          interval_ = null;
+          onChanged();
+        } else {
+          interval_ = null;
+          intervalBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      public com.google.protobuf.Duration.Builder getIntervalBuilder() {
+        
+        onChanged();
+        return getIntervalFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      public com.google.protobuf.DurationOrBuilder getIntervalOrBuilder() {
+        if (intervalBuilder_ != null) {
+          return intervalBuilder_.getMessageOrBuilder();
+        } else {
+          return interval_ == null ?
+              com.google.protobuf.Duration.getDefaultInstance() : interval_;
+        }
+      }
+      /**
+       * <code>.google.protobuf.Duration interval = 8;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder> 
+          getIntervalFieldBuilder() {
+        if (intervalBuilder_ == null) {
+          intervalBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Duration, com.google.protobuf.Duration.Builder, com.google.protobuf.DurationOrBuilder>(
+                  getInterval(),
+                  getParentForChildren(),
+                  isClean());
+          interval_ = null;
+        }
+        return intervalBuilder_;
+      }
+
+      private java.lang.Object rawIntervalExpr_ = "";
+      /**
+       * <pre>
+       * The raw interval expression, e.g., '1 minute'::INTERVAL.
+       * </pre>
+       *
+       * <code>string raw_interval_expr = 9;</code>
+       * @return The rawIntervalExpr.
+       */
+      public java.lang.String getRawIntervalExpr() {
+        java.lang.Object ref = rawIntervalExpr_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs =
+              (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          rawIntervalExpr_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
       }
       /**
        * <pre>
-       * The execution interval for sql query in seconds.
+       * The raw interval expression, e.g., '1 minute'::INTERVAL.
        * </pre>
        *
-       * <code>uint64 interval = 8;</code>
-       * @param value The interval to set.
+       * <code>string raw_interval_expr = 9;</code>
+       * @return The bytes for rawIntervalExpr.
+       */
+      public com.google.protobuf.ByteString
+          getRawIntervalExprBytes() {
+        java.lang.Object ref = rawIntervalExpr_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          rawIntervalExpr_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <pre>
+       * The raw interval expression, e.g., '1 minute'::INTERVAL.
+       * </pre>
+       *
+       * <code>string raw_interval_expr = 9;</code>
+       * @param value The rawIntervalExpr to set.
        * @return This builder for chaining.
        */
-      public Builder setInterval(long value) {
-        
-        interval_ = value;
+      public Builder setRawIntervalExpr(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  
+        rawIntervalExpr_ = value;
         onChanged();
         return this;
       }
       /**
        * <pre>
-       * The execution interval for sql query in seconds.
+       * The raw interval expression, e.g., '1 minute'::INTERVAL.
        * </pre>
        *
-       * <code>uint64 interval = 8;</code>
+       * <code>string raw_interval_expr = 9;</code>
        * @return This builder for chaining.
        */
-      public Builder clearInterval() {
+      public Builder clearRawIntervalExpr() {
         
-        interval_ = 0L;
+        rawIntervalExpr_ = getDefaultInstance().getRawIntervalExpr();
+        onChanged();
+        return this;
+      }
+      /**
+       * <pre>
+       * The raw interval expression, e.g., '1 minute'::INTERVAL.
+       * </pre>
+       *
+       * <code>string raw_interval_expr = 9;</code>
+       * @param value The bytes for rawIntervalExpr to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRawIntervalExprBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+        
+        rawIntervalExpr_ = value;
         onChanged();
         return this;
       }
@@ -50108,183 +50406,187 @@ java.lang.String defaultValue);
       descriptor;
   static {
     java.lang.String[] descriptorData = {
-      "\n\025greptime/v1/ddl.proto\022\013greptime.v1\032\030gr" +
-      "eptime/v1/common.proto\"\250\004\n\nDdlRequest\022:\n" +
-      "\017create_database\030\001 \001(\0132\037.greptime.v1.Cre" +
-      "ateDatabaseExprH\000\0224\n\014create_table\030\002 \001(\0132" +
-      "\034.greptime.v1.CreateTableExprH\000\0222\n\013alter" +
-      "_table\030\003 \001(\0132\033.greptime.v1.AlterTableExp" +
-      "rH\000\0220\n\ndrop_table\030\004 \001(\0132\032.greptime.v1.Dr" +
-      "opTableExprH\000\0228\n\016truncate_table\030\007 \001(\0132\036." +
-      "greptime.v1.TruncateTableExprH\000\0222\n\013creat" +
-      "e_flow\030\010 \001(\0132\033.greptime.v1.CreateFlowExp" +
-      "rH\000\022.\n\tdrop_flow\030\t \001(\0132\031.greptime.v1.Dro" +
-      "pFlowExprH\000\0222\n\013create_view\030\n \001(\0132\033.grept" +
-      "ime.v1.CreateViewExprH\000\022.\n\tdrop_view\030\013 \001" +
-      "(\0132\031.greptime.v1.DropViewExprH\000\0228\n\016alter" +
-      "_database\030\014 \001(\0132\036.greptime.v1.AlterDatab" +
-      "aseExprH\000B\006\n\004expr\"\226\003\n\016CreateFlowExpr\022\024\n\014" +
-      "catalog_name\030\001 \001(\t\022\021\n\tflow_name\030\002 \001(\t\0222\n" +
-      "\022source_table_names\030\003 \003(\0132\026.greptime.v1." +
-      "TableName\022/\n\017sink_table_name\030\004 \001(\0132\026.gre" +
-      "ptime.v1.TableName\022\022\n\nor_replace\030\005 \001(\010\022\034" +
-      "\n\024create_if_not_exists\030\006 \001(\010\022.\n\014expire_a" +
-      "fter\030\007 \001(\0132\030.greptime.v1.ExpireAfter\022\017\n\007" +
-      "comment\030\010 \001(\t\022\013\n\003sql\030\t \001(\t\022B\n\014flow_optio" +
-      "ns\030\n \003(\0132,.greptime.v1.CreateFlowExpr.Fl" +
-      "owOptionsEntry\0322\n\020FlowOptionsEntry\022\013\n\003ke" +
-      "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"u\n\014DropFlowEx" +
-      "pr\022\024\n\014catalog_name\030\001 \001(\t\022\021\n\tflow_name\030\002 " +
-      "\001(\t\022$\n\007flow_id\030\003 \001(\0132\023.greptime.v1.FlowI" +
-      "d\022\026\n\016drop_if_exists\030\005 \001(\010\"\376\001\n\016CreateView" +
-      "Expr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_nam" +
-      "e\030\002 \001(\t\022\021\n\tview_name\030\003 \001(\t\022\024\n\014logical_pl" +
-      "an\030\004 \001(\014\022\034\n\024create_if_not_exists\030\005 \001(\010\022\022" +
-      "\n\nor_replace\030\006 \001(\010\022+\n\013table_names\030\007 \003(\0132" +
-      "\026.greptime.v1.TableName\022\017\n\007columns\030\010 \003(\t" +
-      "\022\024\n\014plan_columns\030\t \003(\t\022\022\n\ndefinition\030\n \001" +
-      "(\t\"\213\001\n\014DropViewExpr\022\024\n\014catalog_name\030\001 \001(" +
-      "\t\022\023\n\013schema_name\030\002 \001(\t\022\021\n\tview_name\030\003 \001(" +
-      "\t\022%\n\007view_id\030\004 \001(\0132\024.greptime.v1.TableId" +
-      "\022\026\n\016drop_if_exists\030\005 \001(\010\"\207\003\n\017CreateTable" +
-      "Expr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_nam" +
-      "e\030\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\022\014\n\004desc\030\004 \001(" +
-      "\t\022+\n\013column_defs\030\005 \003(\0132\026.greptime.v1.Col" +
-      "umnDef\022\022\n\ntime_index\030\006 \001(\t\022\024\n\014primary_ke" +
-      "ys\030\007 \003(\t\022\034\n\024create_if_not_exists\030\010 \001(\010\022E" +
-      "\n\rtable_options\030\t \003(\0132..greptime.v1.Crea" +
-      "teTableExpr.TableOptionsEntry\022&\n\010table_i" +
-      "d\030\n \001(\0132\024.greptime.v1.TableId\022\016\n\006engine\030" +
-      "\014 \001(\t\0323\n\021TableOptionsEntry\022\013\n\003key\030\001 \001(\t\022" +
-      "\r\n\005value\030\002 \001(\t:\0028\001\"\312\005\n\016AlterTableExpr\022\024\n" +
-      "\014catalog_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t" +
-      "\022\022\n\ntable_name\030\003 \001(\t\022.\n\013add_columns\030\004 \001(" +
-      "\0132\027.greptime.v1.AddColumnsH\000\0220\n\014drop_col" +
-      "umns\030\005 \001(\0132\030.greptime.v1.DropColumnsH\000\0220" +
-      "\n\014rename_table\030\006 \001(\0132\030.greptime.v1.Renam" +
-      "eTableH\000\022=\n\023modify_column_types\030\007 \001(\0132\036." +
-      "greptime.v1.ModifyColumnTypesH\000\0229\n\021set_t" +
-      "able_options\030\010 \001(\0132\034.greptime.v1.SetTabl" +
-      "eOptionsH\000\022=\n\023unset_table_options\030\013 \001(\0132" +
-      "\036.greptime.v1.UnsetTableOptionsH\000\022*\n\tset" +
-      "_index\030\014 \001(\0132\025.greptime.v1.SetIndexH\000\022.\n" +
-      "\013unset_index\030\r \001(\0132\027.greptime.v1.UnsetIn" +
-      "dexH\000\0222\n\rdrop_defaults\030\016 \001(\0132\031.greptime." +
-      "v1.DropDefaultsH\000\022.\n\013set_indexes\030\017 \001(\0132\027" +
-      ".greptime.v1.SetIndexesH\000\0222\n\runset_index" +
-      "es\030\020 \001(\0132\031.greptime.v1.UnsetIndexesH\000\0220\n" +
-      "\014set_defaults\030\021 \001(\0132\030.greptime.v1.SetDef" +
-      "aultsH\000B\006\n\004kind\"\"\n\013DropDefault\022\023\n\013column" +
-      "_name\030\001 \001(\t\"8\n\nSetIndexes\022*\n\013set_indexes" +
-      "\030\001 \003(\0132\025.greptime.v1.SetIndex\">\n\014UnsetIn" +
-      "dexes\022.\n\runset_indexes\030\001 \003(\0132\027.greptime." +
-      "v1.UnsetIndex\"=\n\nSetDefault\022\023\n\013column_na" +
-      "me\030\001 \001(\t\022\032\n\022default_constraint\030\002 \001(\014\"\237\001\n" +
-      "\010SetIndex\022,\n\010fulltext\030\001 \001(\0132\030.greptime.v" +
-      "1.SetFulltextH\000\022,\n\010inverted\030\002 \001(\0132\030.grep" +
-      "time.v1.SetInvertedH\000\022,\n\010skipping\030\003 \001(\0132" +
-      "\030.greptime.v1.SetSkippingH\000B\t\n\007options\"\247" +
-      "\001\n\nUnsetIndex\022.\n\010fulltext\030\001 \001(\0132\032.grepti" +
-      "me.v1.UnsetFulltextH\000\022.\n\010inverted\030\002 \001(\0132" +
-      "\032.greptime.v1.UnsetInvertedH\000\022.\n\010skippin" +
-      "g\030\003 \001(\0132\032.greptime.v1.UnsetSkippingH\000B\t\n" +
-      "\007options\"\216\001\n\rDropTableExpr\022\024\n\014catalog_na" +
-      "me\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntable_n" +
-      "ame\030\003 \001(\t\022&\n\010table_id\030\004 \001(\0132\024.greptime.v" +
-      "1.TableId\022\026\n\016drop_if_exists\030\005 \001(\010\"\314\001\n\022Cr" +
-      "eateDatabaseExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023" +
-      "\n\013schema_name\030\002 \001(\t\022\034\n\024create_if_not_exi" +
-      "sts\030\003 \001(\010\022=\n\007options\030\004 \003(\0132,.greptime.v1" +
-      ".CreateDatabaseExpr.OptionsEntry\032.\n\014Opti" +
-      "onsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001" +
-      "\"\250\001\n\021TruncateTableExpr\022\024\n\014catalog_name\030\001" +
-      " \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntable_name\030" +
-      "\003 \001(\t\022&\n\010table_id\030\004 \001(\0132\024.greptime.v1.Ta" +
-      "bleId\022,\n\013time_ranges\030\005 \001(\0132\027.greptime.v1" +
-      ".TimeRanges\"U\n\020DropDatabaseExpr\022\024\n\014catal" +
-      "og_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\026\n\016dr" +
-      "op_if_exists\030\003 \001(\010\"9\n\nAddColumns\022+\n\013add_" +
-      "columns\030\001 \003(\0132\026.greptime.v1.AddColumn\"?\n" +
-      "\014DropDefaults\022/\n\rdrop_defaults\030\001 \003(\0132\030.g" +
-      "reptime.v1.DropDefault\"<\n\013SetDefaults\022-\n" +
-      "\014set_defaults\030\001 \003(\0132\027.greptime.v1.SetDef" +
-      "ault\"<\n\013DropColumns\022-\n\014drop_columns\030\001 \003(" +
-      "\0132\027.greptime.v1.DropColumn\"O\n\021ModifyColu" +
-      "mnTypes\022:\n\023modify_column_types\030\001 \003(\0132\035.g" +
-      "reptime.v1.ModifyColumnType\"%\n\013RenameTab" +
-      "le\022\026\n\016new_table_name\030\001 \001(\t\"\204\001\n\tAddColumn" +
-      "\022*\n\ncolumn_def\030\001 \001(\0132\026.greptime.v1.Colum" +
-      "nDef\0220\n\010location\030\003 \001(\0132\036.greptime.v1.Add" +
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+      "\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\0322\n\020Anno" +
+      "tationsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t" +
+      ":\0028\001\"]\n\rNotifyChannel\022\014\n\004name\030\001 \001(\t\022.\n\007w" +
+      "ebhook\030\002 \001(\0132\033.greptime.v1.WebhookOption" +
+      "sH\000B\016\n\014channel_type\"\177\n\016WebhookOptions\022\013\n" +
+      "\003url\030\001 \001(\t\0223\n\004opts\030\002 \003(\0132%.greptime.v1.W" +
+      "ebhookOptions.OptsEntry\032+\n\tOptsEntry\022\013\n\003" +
+      "key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"U\n\017DropTrig" +
+      "gerExpr\022\024\n\014catalog_name\030\001 \001(\t\022\024\n\014trigger" +
+      "_name\030\002 \001(\t\022\026\n\016drop_if_exists\030\003 \001(\010*$\n\010A" +
+      "nalyzer\022\013\n\007ENGLISH\020\000\022\013\n\007CHINESE\020\001*)\n\017Ful" +
+      "ltextBackend\022\013\n\007TANTIVY\020\000\022\t\n\005BLOOM\020\001*%\n\021" +
+      "SkippingIndexType\022\020\n\014BLOOM_FILTER\020\000BL\n\016i" +
+      "o.greptime.v1B\003DdlZ5github.com/GreptimeT" +
+      "eam/greptime-proto/go/greptime/v1b\006proto" +
+      "3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
+          com.google.protobuf.DurationProto.getDescriptor(),
           io.greptime.v1.Common.getDescriptor(),
         });
     internal_static_greptime_v1_DdlRequest_descriptor =
@@ -50562,7 +50864,7 @@ java.lang.String defaultValue);
     internal_static_greptime_v1_CreateTriggerExpr_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_CreateTriggerExpr_descriptor,
-        new java.lang.String[] { "CatalogName", "TriggerName", "CreateIfNotExists", "Sql", "Channels", "Labels", "Annotations", "Interval", });
+        new java.lang.String[] { "CatalogName", "TriggerName", "CreateIfNotExists", "Sql", "Channels", "Labels", "Annotations", "Interval", "RawIntervalExpr", });
     internal_static_greptime_v1_CreateTriggerExpr_LabelsEntry_descriptor =
       internal_static_greptime_v1_CreateTriggerExpr_descriptor.getNestedTypes().get(0);
     internal_static_greptime_v1_CreateTriggerExpr_LabelsEntry_fieldAccessorTable = new
@@ -50599,6 +50901,7 @@ java.lang.String defaultValue);
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_DropTriggerExpr_descriptor,
         new java.lang.String[] { "CatalogName", "TriggerName", "DropIfExists", });
+    com.google.protobuf.DurationProto.getDescriptor();
     io.greptime.v1.Common.getDescriptor();
   }
 
diff --git a/proto/greptime/v1/ddl.proto b/proto/greptime/v1/ddl.proto
index c765a8f..32e9985 100644
--- a/proto/greptime/v1/ddl.proto
+++ b/proto/greptime/v1/ddl.proto
@@ -16,6 +16,7 @@ syntax = "proto3";
 
 package greptime.v1;
 
+import "google/protobuf/duration.proto";
 import "greptime/v1/common.proto";
 
 option go_package = "github.com/GreptimeTeam/greptime-proto/go/greptime/v1";
@@ -351,8 +352,9 @@ message CreateTriggerExpr {
   map<string, string> labels = 6;
   // The user-defined annotations.
   map<string, string> annotations = 7;
-  // The execution interval for sql query in seconds.
-  uint64 interval = 8;
+  google.protobuf.Duration interval = 8;
+  // The raw interval expression, e.g., '1 minute'::INTERVAL.
+  string raw_interval_expr = 9;
 }
 
 // The notification channel for trigger.
diff --git a/scripts/generate-cpp.sh b/scripts/generate-cpp.sh
index 34a2a50..894c0d9 100755
--- a/scripts/generate-cpp.sh
+++ b/scripts/generate-cpp.sh
@@ -5,5 +5,5 @@ set -e
 PROTO_ROOT=./proto
 CPP_OUTPUT=./c++
 
-protoc -I ${PROTO_ROOT} --cpp_out=${CPP_OUTPUT} $(find  ./proto/  -type f  -iname "*.proto")
-protoc -I ${PROTO_ROOT} --grpc_out=${CPP_OUTPUT} --plugin=protoc-gen-grpc=`which grpc_cpp_plugin` $(find  ./proto/  -type f  -iname "*.proto")
+protoc -I ${PROTO_ROOT} -I /opt/include --cpp_out=${CPP_OUTPUT} $(find  ./proto/  -type f  -iname "*.proto")
+protoc -I ${PROTO_ROOT} -I /opt/include --grpc_out=${CPP_OUTPUT} --plugin=protoc-gen-grpc=`which grpc_cpp_plugin` $(find  ./proto/  -type f  -iname "*.proto")
diff --git a/scripts/generate-go.sh b/scripts/generate-go.sh
index 07fee51..f51ffb6 100755
--- a/scripts/generate-go.sh
+++ b/scripts/generate-go.sh
@@ -5,8 +5,7 @@ set -e
 PROTO_ROOT=./proto
 GO_OUTPUT=./go
 
-protoc -I=${PROTO_ROOT} --go_out=paths=source_relative:${GO_OUTPUT} $(find  ./proto/  -type f  -iname "*.proto")
-protoc -I=${PROTO_ROOT} \
+protoc -I=${PROTO_ROOT} -I /opt/include --go_out=paths=source_relative:${GO_OUTPUT} $(find  ./proto/  -type f  -iname "*.proto")
+protoc -I=${PROTO_ROOT} -I /opt/include \
        --go-grpc_out=paths=source_relative:${GO_OUTPUT} \
        $(find ./proto/ -type f -iname "*.proto")
-
diff --git a/scripts/generate-java.sh b/scripts/generate-java.sh
index 2b4c5e3..0113a19 100755
--- a/scripts/generate-java.sh
+++ b/scripts/generate-java.sh
@@ -3,4 +3,4 @@
 PROTO_ROOT=./proto
 JAVA_OUTPUT=./java/src/main/java/
 
-protoc -I=${PROTO_ROOT} --java_out=${JAVA_OUTPUT} $(find  ./proto/  -type f  -iname "*.proto")
+protoc -I=${PROTO_ROOT} -I /opt/include --java_out=${JAVA_OUTPUT} $(find  ./proto/  -type f  -iname "*.proto")