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https://issues.apache.org/jira/browse/CALCITE-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-4138:
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Labels: pull-request-available (was: )
> Metadata operations via Avatica turn empty string args to null
> --------------------------------------------------------------
>
> Key: CALCITE-4138
> URL: https://issues.apache.org/jira/browse/CALCITE-4138
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Affects Versions: 1.17.0
> Reporter: Istvan Toth
> Assignee: Istvan Toth
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> DatabaseMetaData.getTables(), and some other functions have parameters
> (catalog, schemaPattern), where null and empty String have different
> semantics.
> The corresponding protobuf fields in Avatica are Strings, and the Avatica
> logic turns those args to null.
> This makes it impossible to filter on actual empty string values.
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