Github user sureshsubbiah commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/806#discussion_r85935717
--- Diff: core/sql/arkcmp/CmpContext.cpp ---
@@ -1157,4 +1157,16 @@ void CmpContext::resetLogmxEventSqlText()
delete sqlTextBuf_ ;
sqlTextBuf_ = NULL ;
}
+
+void CmpContext::clearAllCaches()
+{
+ qcache_->makeEmpty();
--- End diff --
The constructor for CmpContext seems to initialize histogramCache_ the same
as qcache_. Is it possible qcache_ can be NULL at some point? It may be safer
to guard it, this is a really minor nit to be handled later if necessary.
There is one more cache, optPCodeCache_ . Now this cache may not cause any
priv violations I suppose. So a comment later here may be all we need, that
PCode cache is not addressed by this method.
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