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https://issues.apache.org/jira/browse/FLINK-26053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francesco Guardiani reassigned FLINK-26053:
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Assignee: Francesco Guardiani
> Fix parser generator warnings
> -----------------------------
>
> Key: FLINK-26053
> URL: https://issues.apache.org/jira/browse/FLINK-26053
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Francesco Guardiani
> Assignee: Francesco Guardiani
> Priority: Major
>
> When building flink-sql-parser, the javacc logs a couple of warnings:
> {code}
> Warning: Choice conflict in [...] construct at line 2920, column 5.
> Expansion nested within construct and expansion following construct
> have common prefixes, one of which is: "PLAN"
> Consider using a lookahead of 2 or more for nested expansion.
> Warning: Choice conflict involving two expansions at
> line 2930, column 9 and line 2932, column 9 respectively.
> A common prefix is: "STATEMENT"
> Consider using a lookahead of 2 for earlier expansion.
> Warning: Choice conflict involving two expansions at
> line 2952, column 9 and line 2954, column 9 respectively.
> A common prefix is: "STATEMENT"
> Consider using a lookahead of 2 for earlier expansion.
> {code}
> Took from
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=30871&view=logs&j=0c940707-2659-5648-cbe6-a1ad63045f0a&t=075c2716-8010-5565-fe08-3c4bb45824a4&l=3911
> We should investigate them, as they're often symptom of some bug in our
> parser template, which might result in unexpected parsing errors.
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