[jira] [Created] (FLINK-21494) Could not execute statement 'USE `default`' in Flink SQL client

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[jira] [Created] (FLINK-21494) Could not execute statement 'USE `default`' in Flink SQL client

Shang Yuanchun (Jira)
Zheng Hu created FLINK-21494:
--------------------------------

             Summary: Could not execute statement 'USE `default`' in Flink SQL client
                 Key: FLINK-21494
                 URL: https://issues.apache.org/jira/browse/FLINK-21494
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Client
    Affects Versions: 1.12.1
            Reporter: Zheng Hu
             Fix For: 1.12.2, 1.13.0


I have two databases in my iceberg catalog,  one is `default`, another one is `test_db`.  While I cannot switch to use the `default` database because of the Flink SQL parser bug: 



{code}

Flink SQL> show databases;

default

test_db

 

Flink SQL> use `default`;

[ERROR] Could not execute SQL statement. Reason:

org.apache.flink.sql.parser.impl.ParseException: Incorrect syntax near the keyword 'USE' at line 1, column 1.

Was expecting one of:

    "ABS" ...

    "ALTER" ...

    "ARRAY" ...

    "AVG" ...

    "CALL" ...

    "CARDINALITY" ...

    "CASE" ...

    "CAST" ...

    "CEIL" ...

    "CEILING" ...

    "CHAR_LENGTH" ...

    "CHARACTER_LENGTH" ...

    "CLASSIFIER" ...

    "COALESCE" ...

    "COLLECT" ...

    "CONVERT" ...

    "COUNT" ...

    "COVAR_POP" ...

    "COVAR_SAMP" ...

    "CREATE" ...

    "CUME_DIST" ...

    "CURRENT" ...

    "CURRENT_CATALOG" ...

    "CURRENT_DATE" ...

    "CURRENT_DEFAULT_TRANSFORM_GROUP" ...

    "CURRENT_PATH" ...

    "CURRENT_ROLE" ...

    "CURRENT_SCHEMA" ...

    "CURRENT_TIME" ...

    "CURRENT_TIMESTAMP" ...

    "CURRENT_USER" ...

    "CURSOR" ...

    "DATE" ...

    "DELETE" ...

    "DENSE_RANK" ...

    "DESCRIBE" ...

    "DROP" ...

    "ELEMENT" ...

    "EVERY" ...

    "EXISTS" ...

    "EXP" ...

    "EXPLAIN" ...

    "EXTRACT" ...

    "FALSE" ...

    "FIRST_VALUE" ...

    "FLOOR" ...

    "FUSION" ...

    "GROUPING" ...

    "HOUR" ...

    "INSERT" ...

    "INTERSECTION" ...

    "INTERVAL" ...

    "JSON_ARRAY" ...

    "JSON_ARRAYAGG" ...

    "JSON_EXISTS" ...

    "JSON_OBJECT" ...

    "JSON_OBJECTAGG" ...

    "JSON_QUERY" ...

    "JSON_VALUE" ...

    "LAG" ...

    "LAST_VALUE" ...

    "LEAD" ...

    "LEFT" ...

    "LN" ...

    "LOCALTIME" ...

    "LOCALTIMESTAMP" ...

    "LOWER" ...

    "MATCH_NUMBER" ...

    "MAX" ...

    "MERGE" ...

    "MIN" ...

    "MINUTE" ...

    "MOD" ...

    "MONTH" ...

    "MULTISET" ...

    "NEW" ...

    "NEXT" ...

    "NOT" ...

    "NTH_VALUE" ...

    "NTILE" ...

    "NULL" ...

    "NULLIF" ...

    "OCTET_LENGTH" ...

    "OVERLAY" ...

    "PERCENT_RANK" ...

    "PERIOD" ...

    "POSITION" ...

    "POWER" ...

    "PREV" ...

    "RANK" ...

    "REGR_COUNT" ...

    "REGR_SXX" ...

    "REGR_SYY" ...

    "RESET" ...

    "RIGHT" ...

    "ROW" ...

    "ROW_NUMBER" ...

    "RUNNING" ...

    "SECOND" ...

    "SELECT" ...

    "SESSION_USER" ...

    "SET" ...

    "SOME" ...

    "SPECIFIC" ...

    "SQRT" ...

    "STDDEV_POP" ...

    "STDDEV_SAMP" ...

    "SUBSTRING" ...

    "SUM" ...

    "SYSTEM_USER" ...

    "TABLE" ...

    "TIME" ...

    "TIMESTAMP" ...

    "TRANSLATE" ...

    "TRIM" ...

    "TRUE" ...

    "TRUNCATE" ...

    "UNKNOWN" ...

    "UPDATE" ...

    "UPPER" ...

    "UPSERT" ...

    "USER" ...

    "VALUES" ...

    "VAR_POP" ...

    "VAR_SAMP" ...

    "WITH" ...

    "YEAR" ...

    <UNSIGNED_INTEGER_LITERAL> ...

    <APPROX_NUMERIC_LITERAL> ...

    <DECIMAL_NUMERIC_LITERAL> ...

    <BINARY_STRING_LITERAL> ...

    <QUOTED_STRING> ...

    <PREFIXED_STRING_LITERAL> ...

    <UNICODE_STRING_LITERAL> ...

    <BIG_QUERY_DOUBLE_QUOTED_STRING> ...

    <BIG_QUERY_QUOTED_STRING> ...

    "(" ...

    <LBRACE_D> ...

    <LBRACE_T> ...

    <LBRACE_TS> ...

    <LBRACE_FN> ...

    "?" ...

    "+" ...

    "-" ...

    <BRACKET_QUOTED_IDENTIFIER> ...

    <QUOTED_IDENTIFIER> ...

    <BACK_QUOTED_IDENTIFIER> ...

    <HYPHENATED_IDENTIFIER> ...

    <IDENTIFIER> ...

    <UNICODE_QUOTED_IDENTIFIER> ...

    "SHOW" ...

    "USE" <IDENTIFIER> ...

    "USE" <HYPHENATED_IDENTIFIER> ...

    "USE" <QUOTED_IDENTIFIER> ...

    "USE" <BACK_QUOTED_IDENTIFIER> ...

    "USE" <BRACKET_QUOTED_IDENTIFIER> ...

    "USE" <UNICODE_QUOTED_IDENTIFIER> ...

{code}


It's OK to switch to use `test_db`.


{code}
Flink SQL> use `test_db`;

Flink SQL> show tables;
[INFO] Result was empty.
{code}



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