mdayakar commented on code in PR #6055:
URL: https://github.com/apache/hive/pull/6055#discussion_r2321279664
##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/HiveCalciteUtil.java:
##########
@@ -1272,6 +1272,28 @@ public static boolean
hasAllExpressionsFromRightSide(RelNode joinRel, List<RexNo
return true;
}
+ /**
+ * Checks the operands in the join conditions are from right table or only
from left table.
+ *
+ * @param joinRel Join node
+ * @return true if the join condition operands are from right and left
table, false otherwise.
+ */
+ public static boolean hasJoinConditionOperandFromRightTable(Join joinRel) {
+ RexNode condition = joinRel.getCondition();
+ RelNode leftRel = joinRel.getLeft();
+ int leftFieldCount = leftRel.getRowType().getFieldCount();
+ ImmutableBitSet leftBitmap = ImmutableBitSet.range(leftFieldCount);
+ List<RexNode> conditions = RelOptUtil.conjunctions(condition);
+ for (RexNode cond : conditions) {
+ ImmutableBitSet condBitmap = RelOptUtil.InputFinder.bits(cond);
+ // if condition becomes true if both the operands are from left table
Review Comment:
Modified the comment
--
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
