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https://issues.apache.org/jira/browse/HIVE-26426?focusedWorklogId=795060&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-795060
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ASF GitHub Bot logged work on HIVE-26426:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Jul/22 21:57
Start Date: 25/Jul/22 21:57
Worklog Time Spent: 10m
Work Description: achennagiri commented on code in PR #3474:
URL: https://github.com/apache/hive/pull/3474#discussion_r929337365
##########
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:
This will need some changes to the query output files as well. Also, since
it is affecting the aesthetics for the user directly, I am now thinking whethe
we should really remove the below line
`msg = msg.substring(0, msg.length() - 2);`. What do you say?
Issue Time Tracking
-------------------
Worklog Id: (was: 795060)
Time Spent: 1h 10m (was: 1h)
> Avoid StringIndexOutOfBoundsException in canCBOHandleAst() method.
> ------------------------------------------------------------------
>
> Key: HIVE-26426
> URL: https://issues.apache.org/jira/browse/HIVE-26426
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Abhay
> Assignee: Abhay
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> The call to canHandleQbForCbo() can result in an
> StringIndexOutOfBoundsException. The assumption in the code is that the msg
> can only be null and we handle that but the msg can also be an empty string
> if the *verbose* is set to false. This can happen if INFO Logging is not
> enabled. We need to handle that case.
> https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java#L913
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