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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