JingsongLi opened a new pull request #9427: [FLINK-13704][table-planner-blink] Re-add substr support in blink-planner to fix tpc-h e2e test failure URL: https://github.com/apache/flink/pull/9427 ## What is the purpose of the change substr is a common function, HIVE/SPARK/MYSQL/ORACLE/SQSERVER all support it. We should not delete it. And tpc-h will generate the sql that contains substr. We should re-add it to fix e2e test failure. ## Brief change log Add substr in FlinkSqlOperatorTable, and add tests. ## Verifying this change ScalarFunctionsTest and SqlExpressionTest. run the TPC-H E2E test. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): no - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no - The serializers: no - The runtime per-record code paths (performance sensitive): no - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? no
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