deniskuzZ commented on code in PR #5409:
URL: https://github.com/apache/hive/pull/5409#discussion_r1813072472
##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConvertJoinMapJoin.java:
##########
@@ -657,22 +661,41 @@ private boolean convertJoinBucketMapJoin(JoinOperator
joinOp, OptimizeTezProcCon
boolean updatePartitionCols = false;
List<Integer> positions = new ArrayList<>();
+ final CustomBucketFunction bucketFunction;
if (listBucketCols.get(0).size() != bigTablePartitionCols.size()) {
updatePartitionCols = true;
// Prepare updated partition columns for small table(s).
// Get the positions of bucketed columns
int bigTableExprPos = 0;
Map<String, ExprNodeDesc> colExprMap = bigTableRS.getColumnExprMap();
+ final boolean[] retainedColumns = new
boolean[listBucketCols.get(0).size()];
for (ExprNodeDesc bigTableExpr : bigTablePartitionCols) {
// It is guaranteed there is only 1 list within listBucketCols.
- for (String colName : listBucketCols.get(0)) {
+ for (int i = 0; i < listBucketCols.get(0).size(); i++) {
+ final String colName = listBucketCols.get(0).get(i);
if (colExprMap.get(colName).isSame(bigTableExpr)) {
positions.add(bigTableExprPos);
+ retainedColumns[i] = true;
}
}
bigTableExprPos = bigTableExprPos + 1;
}
+
+ Preconditions.checkState(opTraits.getCustomBucketFunctions().size() ==
1);
+ if (opTraits.getCustomBucketFunctions().get(0) == null) {
+ bucketFunction = null;
Review Comment:
set default to null and avoid unnecessary conditional checks
--
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: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
