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https://issues.apache.org/jira/browse/CALCITE-4785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17416876#comment-17416876
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Julian Hyde commented on CALCITE-4785:
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Can you confirm that this is an error per the standard?
And even if it should be an error, it may be better to throw an error in the
validator than in the parser. I believe that parsers should be fairly stupid.
> The parser allows multiple ON ERROR or ON EMPTY clauses for JSON_QUERY and
> JSON_VALUE
> -------------------------------------------------------------------------------------
>
> Key: CALCITE-4785
> URL: https://issues.apache.org/jira/browse/CALCITE-4785
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.27.0
> Reporter: Viliam Durina
> Priority: Minor
>
> The following expression parses succesfully:
> {{JSON_QUERY('bad-json', '$' DEFAULT 1 ON ERROR DEFAULT 2 ON ERROR)}}
> The 2nd ON ERROR clause overrides the 1st one and the expression returns
> {{2}}. Instead, an error should be thrown.
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