Github user sansanichfb commented on the issue:
https://github.com/apache/incubator-hawq/pull/1002
@hornn haven't test performance yet, will test soon. As far as I
understood, we invoke this function only one time per session, when importing
first relation from Hive. Also before we were using SPI, which supposed to be
slower(supports ANSI SQL, checks for permissions etc) and now we will be using
CAQL which I hope supposed to light-weight. Haven't found any unit-tests yet,
working on adding some.
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