[GitHub] [spark] wangyum opened a new pull request #25152: [WIP][SPARK-28388][SQL][TEST] Port select_implicit.sql

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wangyum opened a new pull request #25152: [WIP][SPARK-28388][SQL][TEST] Port select_implicit.sql
URL: https://github.com/apache/spark/pull/25152
 
 
   ## What changes were proposed in this pull request?
   
   This PR is to port numeric.sql from PostgreSQL regression tests. https://github.com/postgres/postgres/blob/REL_12_BETA2/src/test/regress/sql/select_implicit.sql
   
   The expected results can be found in the link: https://github.com/postgres/postgres/blob/REL_12_BETA2/src/test/regress/expected/select_implicit.out
   
   When porting the test cases, found one PostgreSQL specific features that do not exist in Spark SQL:
   [SPARK-28329](https://issues.apache.org/jira/browse/SPARK-28329): SELECT INTO syntax
   
   Also, found four inconsistent behavior:
   [SPARK-2659](https://issues.apache.org/jira/browse/SPARK-2659): HiveQL: Division operator should always perform fractional division
   
   ## How was this patch tested?
   
   N/A

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