jeyhunkarimov opened a new pull request, #23612: URL: https://github.com/apache/flink/pull/23612
## What is the purpose of the change Support enhanced show functions syntax described in [FLIP-297](https://cwiki.apache.org/confluence/display/FLINK/FLIP-297%3A+Improve+Auxiliary+Sql+Statements) ## Brief change log Changelog from: ``` SHOW DATABASES ``` to: ``` SHOW DATABASES [ ( FROM | IN ) catalog_name] [ [NOT] (LIKE | ILIKE) <sql_like_pattern> ] ``` ## Verifying this change - Extended integration tests `flink-table/flink-sql-client/src/test/resources/sql/catalog_database.q` - Extended unit test `flink-table/flink-sql-parser/src/test/java/org/apache/flink/sql/parser/FlinkSqlParserImplTest.java -> testShowDataBases()` - Added unit tests in `flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/operations/SqlOtherOperationConverterTest.java -> testShowDatabases()` ## 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, Kubernetes/Yarn, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? yes - If yes, how is the feature documented? docs -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org