lincoln-lil commented on a change in pull request #9335: [FLINK-13503][API] Add
contract in `LookupableTableSource` to specify the behavior when lookupKeys
contains null.
URL: https://github.com/apache/flink/pull/9335#discussion_r310055435
##########
File path:
flink-connectors/flink-jdbc/src/main/java/org/apache/flink/api/java/io/jdbc/JDBCLookupFunction.java
##########
@@ -101,7 +105,7 @@ public JDBCLookupFunction(
this.maxRetryTimes = lookupOptions.getMaxRetryTimes();
this.keySqlTypes =
Arrays.stream(keyTypes).mapToInt(JDBCTypeUtil::typeInformationToSqlType).toArray();
this.outputSqlTypes =
Arrays.stream(fieldTypes).mapToInt(JDBCTypeUtil::typeInformationToSqlType).toArray();
- this.query = options.getDialect().getSelectFromStatement(
+ this.query =
options.getDialect().getSelectNotDistinctFromStatement(
Review comment:
Will this query performance poor against the older one?
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