Joel Bernstein created SOLR-16251:
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Summary: Cache Table schema 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
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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