achennagiri commented on code in PR #3474:
URL: https://github.com/apache/hive/pull/3474#discussion_r929335839
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java:
##########
@@ -947,7 +947,7 @@ Pair<Boolean, String> canCBOHandleAst(ASTNode ast, QB qb,
PreCboCtx cboCtx) {
// Now check QB in more detail. canHandleQbForCbo returns null if query can
// be handled.
msg = CalcitePlanner.canHandleQbForCbo(queryProperties, conf, true,
needToLogMessage);
- if (msg == null) {
+ if (msg == null || msg.isEmpty()) {
return Pair.of(true, msg);
}
msg = msg.substring(0, msg.length() - 2);
Review Comment:
Also, some of the explain analyze queries would show something like this
`Plan not optimized by CBO because the statement has PTF; ` as opposed to
`Plan not optimized by CBO because the statement has PTF
`
which should be fine I guess
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