LFC
86 lines
2.0 KiB
Protocol Buffer
86 lines
2.0 KiB
Protocol Buffer
syntax = "proto3";
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package greptime.v1;
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message Column {
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string column_name = 1;
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enum SemanticType {
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TAG = 0;
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FIELD = 1;
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TIMESTAMP = 2;
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}
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SemanticType semantic_type = 2;
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message Values {
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repeated int32 i8_values = 1;
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repeated int32 i16_values = 2;
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repeated int32 i32_values = 3;
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repeated int64 i64_values = 4;
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repeated uint32 u8_values = 5;
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repeated uint32 u16_values = 6;
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repeated uint32 u32_values = 7;
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repeated uint64 u64_values = 8;
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repeated float f32_values = 9;
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repeated double f64_values = 10;
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repeated bool bool_values = 11;
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repeated bytes binary_values = 12;
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repeated string string_values = 13;
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repeated int32 date_values = 14;
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repeated int64 datetime_values = 15;
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repeated int64 ts_second_values = 16;
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repeated int64 ts_millisecond_values = 17;
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repeated int64 ts_microsecond_values = 18;
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repeated int64 ts_nanosecond_values = 19;
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}
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// The array of non-null values in this column.
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//
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// For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
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// column:
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// column_name: foo
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// semantic_type: Tag
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// values: 1, 2, 3, 4, 5, 7, 8, 9
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// null_masks: 00100000 00000010
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Values values = 3;
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// Mask maps the positions of null values.
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// If a bit in null_mask is 1, it indicates that the column value at that position is null.
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bytes null_mask = 4;
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// Helpful in creating vector from column.
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ColumnDataType datatype = 5;
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}
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message ColumnDef {
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string name = 1;
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ColumnDataType datatype = 2;
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bool is_nullable = 3;
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bytes default_constraint = 4;
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}
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enum ColumnDataType {
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BOOLEAN = 0;
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INT8 = 1;
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INT16 = 2;
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INT32 = 3;
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INT64 = 4;
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UINT8 = 5;
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UINT16 = 6;
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UINT32 = 7;
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UINT64 = 8;
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FLOAT32 = 9;
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FLOAT64 = 10;
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BINARY = 11;
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STRING = 12;
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DATE = 13;
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DATETIME = 14;
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TIMESTAMP_SECOND = 15;
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TIMESTAMP_MILLISECOND = 16;
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TIMESTAMP_MICROSECOND = 17;
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TIMESTAMP_NANOSECOND = 18;
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}
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