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https://issues.apache.org/jira/browse/CALCITE-5910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17752146#comment-17752146
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Mihai Budiu commented on CALCITE-5910:
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There are many languages that describe regular expressions, that differ subtly
from one another.
BigQuery uses re2: https://github.com/google/re2/wiki/Syntax which is similar
to Java's regular expressions, but not identical.
> Implement BigQuery functions REGEXP_EXTRACT and REGEXP_EXTRACT_ALL
> ------------------------------------------------------------------
>
> Key: CALCITE-5910
> URL: https://issues.apache.org/jira/browse/CALCITE-5910
> Project: Calcite
> Issue Type: Task
> Reporter: Jerin John
> Assignee: Jerin John
> Priority: Major
> Labels: pull-request-available
>
> Add support for REGEXP_CONTAINS function from BigQuery.
> Function returns TRUE if input value is a partial match for the regular
> expression.
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