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Posted to dev@calcite.apache.org by "Dhirenda Gautam (Jira)" <ji...@apache.org> on 2020/01/02 07:31:00 UTC

[jira] [Created] (CALCITE-3663) Support for TRIM function in Bigquery dialect

Dhirenda Gautam created CALCITE-3663:
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             Summary: Support for TRIM function in Bigquery dialect
                 Key: CALCITE-3663
                 URL: https://issues.apache.org/jira/browse/CALCITE-3663
             Project: Calcite
          Issue Type: Improvement
          Components: core
            Reporter: Dhirenda Gautam


When we run query SELECT TRIM('ABC') for  big-query Dialect
we expect SELECT TRIM('ABC')，but get SELECT TRIM(BOTH ' ' FROM 'ABC') which is not a valid query in Big-Query.

Similary below query

SELECT TRIM(BOTH 'a' from 'ABC') 
SELECT TRIM(LEADING ' ' from 'ABC') 
SELECT TRIM(TRAILING ' ' from 'ABC') are not getting converted into validate Query format.

Unparse logic for the trim has been handle in Big-query dialect to convert the source Trim query into valid big-query query.



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