Github user DaveBirdsall commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/184#discussion_r45653714
--- Diff: core/sql/ustat/hs_globals.cpp ---
@@ -3857,7 +3759,8 @@ Lng32 HSSample::make(NABoolean rowCountIsEstimate, //
input
// need to use a vanilla INSERT statement. Otherwise, we can use
SIDETREE
// INSERTS for better performance. A current bug in the HBase interface
// requires the use of Upsert.
- if (hs_globals->isHbaseTable)
+ // For Hive tables the sample table used is a Trafodion table
+ if (hs_globals->isHbaseTable || hs_globals->isHiveTable)
--- End diff --
I gather that fixing the Hive stats performance problem is a one-line fix
(just this line) and everything else in this change set pertains to removing
obsolete DP2 sampling code?
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