liu ming created TRAFODION-2090:
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Summary: improve the very first time of query compiling
Key: TRAFODION-2090
URL: https://issues.apache.org/jira/browse/TRAFODION-2090
Project: Apache Trafodion
Issue Type: Improvement
Reporter: liu ming
Currently, the very first query run in master executor: sqlci or mxosrvr will
take seconds to compile.
Initial analysis shows most time spend on metadata retrieving.
Need to improve the compile time for the very first time, at least from end
user's perspective.
Speed up the metadata retrieval speed.
Redesign metadata scheme
Prefetch metadata
are all among possible solutions, the aim is to shorten the time spend on the
SQL compile for the first time. Initial goal is within 1 second, faster the
better.
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