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https://issues.apache.org/jira/browse/SOLR-16251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-16251:
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Summary: Cache table schemas between query invocations (was: Cache Table
schemas between query invocations)
> Cache table schemas between query invocations
> ---------------------------------------------
>
> Key: SOLR-16251
> URL: https://issues.apache.org/jira/browse/SOLR-16251
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Parallel SQL
> Reporter: Joel Bernstein
> Priority: Major
> Labels: RobustSQL
>
> Currently Solr SQL will rebuild tables schemas, for each table in the SQL
> query, on each query invocation. Each table involves two calls to the
> LukeHandler and can be expensive if the query contains very wide tables. This
> ticket will cache the Table schemas between query invocations. Since schemas
> can be updated by dynamic fields as well as config updates its probably
> easiest to have background thread refresh the cached table schemas every few
> minutes.
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