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https://issues.apache.org/jira/browse/HIVE-27031?focusedWorklogId=844721&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-844721
]
ASF GitHub Bot logged work on HIVE-27031:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 10/Feb/23 08:28
Start Date: 10/Feb/23 08:28
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on code in PR #4026:
URL: https://github.com/apache/hive/pull/4026#discussion_r1102426977
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/UpdateDeleteSemanticAnalyzer.java:
##########
@@ -145,11 +162,21 @@ 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) {
+ assert where.getChildCount() < 2 : "Overwrite mode not supported with
more than 1 children in where clause.";
+ for (int i = 0; i < where.getChildCount(); i++) {
Review Comment:
if we expect just 1 child why not skip the loop and access it via the index?
````
if (where.getChildCount() == 1) {
ASTNode node = new ASTNode(new CommonToken(HiveParser.KW_NOT, "!"));
node.addChild(where.getChild(0));
where.setChild(0, node);
}
````
Issue Time Tracking
-------------------
Worklog Id: (was: 844721)
Time Spent: 1h 50m (was: 1h 40m)
> 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: 1h 50m
> Remaining Estimate: 0h
>
> Implement copy on write mode for deletes for iceberg tables
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