lirui-apache commented on a change in pull request #9342: [FLINK-13438][hive]
Fix DataTypes.DATE/TIME/TIMESTAMP support for hive connectors
URL: https://github.com/apache/flink/pull/9342#discussion_r312037238
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File path:
flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/table/catalog/hive/util/HiveTypeUtil.java
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@@ -256,9 +258,9 @@ private static DataType
toFlinkPrimitiveType(PrimitiveTypeInfo hiveType) {
case DOUBLE:
return DataTypes.DOUBLE();
case DATE:
- return DataTypes.DATE();
+ return DataTypes.DATE().bridgedTo(Date.class);
case TIMESTAMP:
- return DataTypes.TIMESTAMP();
+ return
DataTypes.TIMESTAMP(3).bridgedTo(Timestamp.class);
Review comment:
Hive's timestamp has precision 9. If Flink internally stores
`java.sql.Timestamp` as a long (like @TsReaper mentioned in
`TimestampConverter`), seems we cannot avoid the loss. Does Flink support
precision 9 with `java.time.LocalDateTime`?
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