walterddr commented on code in PR #9702:
URL: https://github.com/apache/pinot/pull/9702#discussion_r1010755913
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pinot-common/src/main/java/org/apache/pinot/sql/parsers/CalciteSqlParser.java:
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@@ -717,15 +718,16 @@ private static Expression toExpression(SqlNode node) {
SqlNodeList thenOperands = caseSqlNode.getThenOperands();
SqlNode elseOperand = caseSqlNode.getElseOperand();
Expression caseFuncExpr = RequestUtils.getFunctionExpression("case");
- for (SqlNode whenSqlNode : whenOperands.getList()) {
+ Preconditions.checkState(whenOperands.size() == thenOperands.size());
+ for (int i = 0; i < whenOperands.size(); i++) {
+ SqlNode whenSqlNode = whenOperands.get(i);
Review Comment:
handle backward compatibility by check if the entire list of when operands
are boolean return type.
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