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https://issues.apache.org/jira/browse/CALCITE-6663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Julian Hyde updated CALCITE-6663:
---------------------------------
Description:
We can support SPLIT_PART function for Postgres:
{{ split_part}} ( _{{string}}_ {{{}text{}}}, _{{delimiter}}_ {{{}text{}}},
_{{n}}_ {{integer}} ) → {{text}}
Splits _{{string}}_ at occurrences of _{{delimiter}}_ and returns the
{_}{{n}}{_}'th field (counting from one), or when _{{n}}_ is negative, returns
the |{_}{{n}}{_}|'th-from-last field.
{noformat}
split_part('abc#def#ghi', '#', 2) # returns 'def'
split_part('abc,def,ghi,jkl', ',', -2) # returns 'ghi'
{noformat}
was:
{{We can support split_part function for postgresq:}}
{{split_part}} ( _{{string}}_ {{{}text{}}}, _{{delimiter}}_ {{{}text{}}},
_{{n}}_ {{integer}} ) → {{text}}
Splits _{{string}}_ at occurrences of _{{delimiter}}_ and returns the
{_}{{n}}{_}'th field (counting from one), or when _{{n}}_ is negative, returns
the |{_}{{n}}{_}|'th-from-last field.
{{split_part('abc~@~def~@~ghi', '~@~', 2)}} → {{def}}
{{split_part('abc,def,ghi,jkl', ',', -2)}} → {{ghi}}
> Support SPLIT_PART function for Postgres
> ----------------------------------------
>
> Key: CALCITE-6663
> URL: https://issues.apache.org/jira/browse/CALCITE-6663
> Project: Calcite
> Issue Type: Improvement
> Reporter: Qi Zhu
> Priority: Major
> Labels: pull-request-available
>
> We can support SPLIT_PART function for Postgres:
> {{ split_part}} ( _{{string}}_ {{{}text{}}}, _{{delimiter}}_ {{{}text{}}},
> _{{n}}_ {{integer}} ) → {{text}}
> Splits _{{string}}_ at occurrences of _{{delimiter}}_ and returns the
> {_}{{n}}{_}'th field (counting from one), or when _{{n}}_ is negative,
> returns the |{_}{{n}}{_}|'th-from-last field.
> {noformat}
> split_part('abc#def#ghi', '#', 2) # returns 'def'
> split_part('abc,def,ghi,jkl', ',', -2) # returns 'ghi'
> {noformat}
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