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https://issues.apache.org/jira/browse/BEAM-2161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Xu reassigned BEAM-2161:
------------------------------
Assignee: James Xu
> add support String functions
> ----------------------------
>
> Key: BEAM-2161
> URL: https://issues.apache.org/jira/browse/BEAM-2161
> Project: Beam
> Issue Type: Task
> Components: dsl-sql
> Reporter: Xu Mingmin
> Assignee: James Xu
> Labels: bundle, split
>
> All functions are listed as below:
> {code}
> string || string
> CHAR_LENGTH(string)
> CHARACTER_LENGTH(string)
> UPPER(string)
> LOWER(string)
> POSITION(string1 IN string2)
> POSITION(string1 IN string2 FROM integer)
> TRIM( { BOTH | LEADING | TRAILING } string1 FROM string2)
> OVERLAY(string1 PLACING string2 FROM integer [ FOR integer2 ])
> SUBSTRING(string FROM integer)
> SUBSTRING(string FROM integer FOR integer)
> INITCAP(string)
> {code}
> see
> https://calcite.apache.org/docs/reference.html#character-string-operators-and-functions
> for more information.
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