deniskuzZ commented on code in PR #4700:
URL: https://github.com/apache/hive/pull/4700#discussion_r1338534182
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/UpdateDeleteSemanticAnalyzer.java:
##########
@@ -177,39 +169,41 @@ private void reparseAndSuperAnalyze(ASTNode tree, Table
mTable, ASTNode tabNameN
ASTNode where = null;
int whereIndex = deleting() ? 1 : 2;
+
if (children.size() > whereIndex) {
where = (ASTNode)children.get(whereIndex);
assert where.getToken().getType() == HiveParser.TOK_WHERE :
"Expected where clause, but found " + where.getName();
+
+ if (copyOnWriteMode) {
+ String whereClause = ctx.getTokenRewriteStream().toString(
+ where.getChild(0).getTokenStartIndex(),
where.getChild(0).getTokenStopIndex());
+
+ rewrittenQueryStr.append(" where ");
+ // Add the inverted where clause, since we want to hold the records
which doesn't satisfy the condition.
+ rewrittenQueryStr.append(" not(").append(whereClause).append(")");
+ // Add the file path filter that matches the delete condition.
+ rewrittenQueryStr.append(" and FILE__PATH in (");
+ rewrittenQueryStr.append(" select `FILE__PATH` from
").append(getFullTableNameForSQL(tabNameNode));
Review Comment:
i just used it to format the query for readability :)
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org
For additional commands, e-mail: gitbox-h...@hive.apache.org
