maropu commented on issue #25114: [SPARK-28349][SQL] Add FALSE and SETMINUS to ansiNonReserved URL: https://github.com/apache/spark/pull/25114#issuecomment-510537932 Is this correct? I don't check carefully check yet, but I think the 'reserved' meaning is essentially different between spark and the other systems. For example, these keyworkds below are reserved in postgresql, but they can be used as alias names; ``` postgres=# select 1 as select; select -------- 1 (1 row) postgres=# select 1 as from; from ------ 1 (1 row) ```
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