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https://issues.apache.org/jira/browse/HIVE-23243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17087951#comment-17087951
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Miklos Gergely commented on HIVE-23243:
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The problem is that I can't just send a java type regexp to the HMS, as it also
adds some additional processing to it. It is not likely that someone would have
millions, or even thousands of databases, so I don't think that performance is
critical here.
> Accept SQL type like pattern for Show Databases
> -----------------------------------------------
>
> Key: HIVE-23243
> URL: https://issues.apache.org/jira/browse/HIVE-23243
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Miklos Gergely
> Assignee: Miklos Gergely
> Priority: Minor
> Attachments: HIVE-23243.01.patch
>
>
> Show Databases pattern accepts java like pattern with * and ., use SQL like
> instead with % and _.
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