Amareshwari Sriramadasu created LENS-404:
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Summary: Queries on JoinChains should not involve metastore lookup
Key: LENS-404
URL: https://issues.apache.org/jira/browse/LENS-404
Project: Apache Lens
Issue Type: Improvement
Components: cube
Reporter: Amareshwari Sriramadasu
Fix For: 2.1
JoinChains are not tables.
CubeQueryContext.extractMetaTables queries metastore for all table aliases
accessed in the query. For actual tables, the tables will be cached in cube
metastore client. For tables that are not there, it will still do a getTable
call.
We should optimize joinchain lookup on the client, not to lookup metastore
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