feat: add Dictionary to ColumnDataType (#290)

2025-11-21 18:45:21 +08:00
parent fd699b2199
commit 437e6a1ef8
5 changed files with 2592 additions and 223 deletions
@@ -153,6 +153,7 @@ enum ColumnDataType {
  VECTOR = 32;
  LIST = 40;
  STRUCT = 41;
+  DICTIONARY = 42;
 }

 message IntervalMonthDayNano {
@@ -205,6 +206,7 @@ message ColumnDataTypeExtension {
    StructTypeExtension struct_type = 5;
    // Marks the data type is a logical json data
    JsonNativeTypeExtension json_native_type = 6;
+    DictionaryTypeExtension dictionary_type = 7;
  }
 }

@@ -236,6 +238,13 @@ message JsonNativeTypeExtension {
  ColumnDataTypeExtension datatype_extension = 2;
 }

+message DictionaryTypeExtension {
+  ColumnDataType key_datatype = 1;
+  ColumnDataTypeExtension key_datatype_extension = 2;
+  ColumnDataType value_datatype = 3;
+  ColumnDataTypeExtension value_datatype_extension = 4;
+}
+
 // Additional options for the column.
 message ColumnOptions {
  // Supported keys: