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https://issues.apache.org/jira/browse/HIVE-27031?focusedWorklogId=845016&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-845016
]
ASF GitHub Bot logged work on HIVE-27031:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Feb/23 08:06
Start Date: 13/Feb/23 08:06
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on code in PR #4026:
URL: https://github.com/apache/hive/pull/4026#discussion_r1104111263
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/UpdateDeleteSemanticAnalyzer.java:
##########
@@ -145,11 +163,38 @@ private void reparseAndSuperAnalyze(ASTNode tree, Table
mTable, ASTNode tabNameN
where = (ASTNode)children.get(whereIndex);
assert where.getToken().getType() == HiveParser.TOK_WHERE :
"Expected where clause, but found " + where.getName();
- }
- // Add a sort by clause so that the row ids come out in the correct order
- appendSortBy(rewrittenQueryStr, columnAppender.getSortKeys());
+ if (shouldOverwrite) {
+ if (where.getChildCount() == 1) {
+
+ // Add isNull check for the where clause condition, since null is
treated as false in where condition and
+ // not null also resolves to false, so we need to explicitly handle
this case.
+ ASTNode functionNode = new ASTNode(new
CommonToken(HiveParser.TOK_FUNCTION, "TOK_FUNCTION"));
Review Comment:
should we do this if `where.getChild(0)` is a terminal node?
Issue Time Tracking
-------------------
Worklog Id: (was: 845016)
Time Spent: 4h (was: 3h 50m)
> Iceberg: Implement Copy-On-Write for Delete Queries
> ---------------------------------------------------
>
> Key: HIVE-27031
> URL: https://issues.apache.org/jira/browse/HIVE-27031
> Project: Hive
> Issue Type: Sub-task
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Labels: pull-request-available
> Time Spent: 4h
> Remaining Estimate: 0h
>
> Implement copy on write mode for deletes for iceberg tables
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