feat: add type extension for column (#122)

* feat: decimal128 proto * chore: make all * chore: empty line * refactor: remove precision and scale * chore: cr comment Co-authored-by: Yingwen <realevenyag@gmail.com> --------- Co-authored-by: Yingwen <realevenyag@gmail.com>
2023-11-24 10:40:50 +08:00
parent 2ffdcae9f9
commit a11efce55d
20 changed files with 6320 additions and 494 deletions
@@ -97,6 +97,7 @@ enum ColumnDataType {
  DURATION_MILLISECOND = 27;
  DURATION_MICROSECOND = 28;
  DURATION_NANOSECOND = 29;
+  DECIMAL128 = 30;
 }

 message IntervalMonthDayNano {
@@ -104,3 +105,21 @@ message IntervalMonthDayNano {
  int32 days = 2;
  int64 nanoseconds = 3;
 }
+
+// (hi: high 64 bits, lo: low 64 bits) are used to keep the decimal128 value.
+message Decimal128 {
+  int64 hi = 1;
+  int64 lo = 2;
+}
+
+// Type extension for some complex types
+message ColumnDataTypeExtension {
+  oneof type_ext {
+    DecimalTypeExtension decimal_type = 1;
+  }
+}
+
+message DecimalTypeExtension {
+  int32 precision = 1;
+  int32 scale = 2;
+}