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https://issues.apache.org/jira/browse/BEAM-4704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles reassigned BEAM-4704:
-------------------------------------
Assignee: (was: Kenneth Knowles)
> String operations yield incorrect results when executed through SQL shell
> -------------------------------------------------------------------------
>
> Key: BEAM-4704
> URL: https://issues.apache.org/jira/browse/BEAM-4704
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql
> Reporter: Kenneth Knowles
> Priority: Major
>
> {{TRIM}} is defined to trim _all_ the characters in the first string from the
> string-to-be-trimmed. Calcite has an incorrect implementation of this. We use
> our own fixed implementation. But when executed through the SQL shell, the
> results do not match what we get from the PTransform path. Here two test
> cases that pass on {{master}} but are incorrect in the shell:
> {code:sql}
> BeamSQL> select TRIM(LEADING 'eh' FROM 'hehe__hehe');
> +------------+
> | EXPR$0 |
> +------------+
> | hehe__hehe |
> +------------+
> {code}
> {code:sql}
> BeamSQL> select TRIM(TRAILING 'eh' FROM 'hehe__hehe');
> +------------+
> | EXPR$0 |
> +------------+
> | hehe__heh |
> +------------+
> {code}
> {code:sql}
> BeamSQL> select TRIM(BOTH 'eh' FROM 'hehe__hehe');
> +------------+
> | EXPR$0 |
> +------------+
> | hehe__heh |
> +------------+
> {code}
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