maytasm commented on a change in pull request #9773:
URL: https://github.com/apache/druid/pull/9773#discussion_r425465115
##########
File path:
sql/src/main/java/org/apache/druid/sql/calcite/rule/DruidJoinRule.java
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@@ -193,9 +193,16 @@ static boolean canHandleCondition(final RexNode condition,
final RelDataType lef
final int numLeftFields = leftRowType.getFieldCount();
for (RexNode subCondition : subConditions) {
- if (subCondition.isA(SqlKind.LITERAL)) {
- // Literals are always OK.
- literalSubConditions.add((RexLiteral) subCondition);
+ if (RexUtil.isLiteral(subCondition, true)) {
+ if (subCondition instanceof RexCall) {
+ // This is CAST(literal) which is always OK.
+ // We know that this is CASE(literal) as it pass the check from
RexUtil.isLiteral
+ RexCall call = (RexCall) subCondition;
+ literalSubConditions.add((RexLiteral) call.operands.get(0));
Review comment:
Done
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