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https://issues.apache.org/jira/browse/HIVE-16713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130323#comment-16130323
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Alister Roberts commented on HIVE-16713:
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This behaviour is a regression - a comment with an embedded apostrophe worked
fine in Hive 2.1.0, but fails in Hive 2.3.0 for this reason.
> Remove wrong judgments of single and double quotes in "--" comments
> -------------------------------------------------------------------
>
> Key: HIVE-16713
> URL: https://issues.apache.org/jira/browse/HIVE-16713
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Liu Chunxiao
> Assignee: Liu Chunxiao
> Priority: Minor
>
> single quote in "--" comments will lead to parse exception
> e.g. sql files which contain the following:
> select --...user's...
> count(*) from aa;
> will regard the single quote in comment "user's" as a quote in sql statement.
> So ";" after aa will be regarded as a ";" in single quote and will not be
> split by the parser.
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