[jira] [Created] (FLINK-18621) Simplify the methods of Executor interface in sql client

[Shang Yuanchun (Jira)]

godfrey he created FLINK-18621:
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             Summary: Simplify the methods of Executor interface in sql client
                 Key: FLINK-18621
                 URL: https://issues.apache.org/jira/browse/FLINK-18621
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / Client
            Reporter: godfrey he
             Fix For: 1.12.0


After {{TableEnvironment#executeSql}} is introduced, many methods in {{Executor}} interface can be replaced with {{TableEnvironment#executeSql}}. Those methods include:
listCatalogs, listDatabases, createTable, dropTable, listTables, listFunctions, useCatalog, useDatabase, getTableSchema (use `DESCRIBE xx`)




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