yuxiqian commented on code in PR #3150:
URL: https://github.com/apache/flink-cdc/pull/3150#discussion_r1547462148
##########
flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-starrocks/src/test/java/org/apache/flink/cdc/connectors/starrocks/sink/CdcDataTypeTransformerTest.java:
##########
@@ -75,6 +76,68 @@ public void testCharTypeForPrimaryKey() {
assertTrue(smallLengthColumn.isNullable());
}
+ @Test
+ public void testDecimalForPrimaryKey() {
+ // map to Int of StarRocks if primary key column with precision < 10
and scale = 0
+ StarRocksColumn.Builder intLengthBuilder =
+ new
StarRocksColumn.Builder().setColumnName("primary_key").setOrdinalPosition(0);
+ new DecimalType(9, 0)
+ .accept(new StarRocksUtils.CdcDataTypeTransformer(true,
intLengthBuilder));
+ StarRocksColumn intLengthColumn = intLengthBuilder.build();
+ assertEquals("primary_key", intLengthColumn.getColumnName());
+ assertEquals(0, intLengthColumn.getOrdinalPosition());
+ assertEquals(StarRocksUtils.INT, intLengthColumn.getDataType());
+ assertTrue(intLengthColumn.isNullable());
+
+ // map to BigInt of StarRocks if primary key column with precision <
19 and scale = 0
+ StarRocksColumn.Builder bigIntLengthBuilder =
+ new
StarRocksColumn.Builder().setColumnName("primary_key").setOrdinalPosition(0);
+ new DecimalType(10, 0)
+ .accept(new StarRocksUtils.CdcDataTypeTransformer(true,
bigIntLengthBuilder));
+ StarRocksColumn bigIntLengthColumn = bigIntLengthBuilder.build();
+ assertEquals("primary_key", bigIntLengthColumn.getColumnName());
+ assertEquals(0, bigIntLengthColumn.getOrdinalPosition());
+ assertEquals(StarRocksUtils.BIGINT, bigIntLengthColumn.getDataType());
+ assertTrue(bigIntLengthColumn.isNullable());
+
+ // map to LARGEINT of StarRocks if primary key column with precision <
18 and scale = 0
+ StarRocksColumn.Builder unsignedBigIntLengthBuilder =
+ new
StarRocksColumn.Builder().setColumnName("primary_key").setOrdinalPosition(0);
+ new DecimalType(20, 0)
Review Comment:
Maybe we can add test cases when `DecimalType` precision goes across
specific boundaries like from 9 to 10, 18 to 19, and 37 to 38.
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