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https://issues.apache.org/jira/browse/CALCITE-905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14940305#comment-14940305
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Julian Hyde commented on CALCITE-905:
-------------------------------------
Patch looks good, but can you also supply a unit test.
> getTables returns empty result in JdbcMeta
> ------------------------------------------
>
> Key: CALCITE-905
> URL: https://issues.apache.org/jira/browse/CALCITE-905
> Project: Calcite
> Issue Type: Bug
> Reporter: Jan Van Besien
> Assignee: Julian Hyde
> Attachments: CALCITE-905.patch
>
>
> getTables on the metadata of a connection does not work (returns empty
> ResultSet) with avatica remoting using a JdbcMeta.
> {code}
> connection.getMetaData().getTables(null, null, null, null);
> {code}
> The problem seems to be related to the String[] types argument of the
> getTables method, this works as expected:
> {code}
> connection.getMetaData().getTables(null, null, null, new String[]{"TABLE"});
> {code}
> I think it boils down to the JdbcMeta#toArray(List<String> typeList) method
> which returns an empty array in stead of null, resulting in the creation of
> an incorrect typeFilter in CalciteMetaImpl#getTables (line 254).
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