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https://issues.apache.org/jira/browse/HIVE-24565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa updated HIVE-24565:
----------------------------------
Description:
{code}
<trim function> ::=
TRIM <left paren> <trim operands> <right paren>
<trim operands> ::=
[ [ <trim specification> ] [ <trim character> ] FROM ] <trim source>
<trim source> ::=
<character value expression>
<trim specification> ::=
LEADING
| TRAILING
| BOTH
<trim character> ::=
<character value expression>
{code}
Example
{code}
SELECT TRIM(LEADING '0' FROM '000123');
123
{code}
> Implement standard trim function
> --------------------------------
>
> Key: HIVE-24565
> URL: https://issues.apache.org/jira/browse/HIVE-24565
> Project: Hive
> Issue Type: Improvement
> Components: Parser, UDF
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
>
> {code}
> <trim function> ::=
> TRIM <left paren> <trim operands> <right paren>
> <trim operands> ::=
> [ [ <trim specification> ] [ <trim character> ] FROM ] <trim source>
> <trim source> ::=
> <character value expression>
> <trim specification> ::=
> LEADING
> | TRAILING
> | BOTH
> <trim character> ::=
> <character value expression>
> {code}
> Example
> {code}
> SELECT TRIM(LEADING '0' FROM '000123');
> 123
> {code}
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