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itxiangkui commented on CALCITE-5113: ------------------------------------- We carefully understood the iso-8601 standard, and the behavior of calcite is correct. in addition: {code:java} 1 row selected (0.759 seconds) 0: jdbc:avatica:remote:url=http://10.192.11.4> select week(date '2022-01-01',10); +-------+ | EXPR$0 | +-------+ | 52 | +-------+ {code} This behavior seems a little strange, the second parameter "mode" seems to be ignored forever But I temporarily closed this issue > function week(date 'xxx') returns a different number than mysql > --------------------------------------------------------------- > > Key: CALCITE-5113 > URL: https://issues.apache.org/jira/browse/CALCITE-5113 > Project: Calcite > Issue Type: Bug > Components: core > Affects Versions: 1.30.0 > Reporter: itxiangkui > Priority: Major > > {code:java} > mysql> select week(date '2022-01-01'); > +-------------------------+ > | week(date '2022-01-01') | > +-------------------------+ > | 0 | > +-------------------------+ > 1 row in set (0.01 sec) > {code} > > {code:java} > 0: jdbc:avatica:remote:url=http://xxxxx > select week(date '2022-01-01'); > +--------+ > | EXPR$0 | > +--------+ > | 52 | > +--------+ {code} > > -- This message was sent by Atlassian Jira (v8.20.7#820007)