danny0405 commented on a change in pull request #1811:
URL: https://github.com/apache/calcite/pull/1811#discussion_r411101992
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File path: core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java
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@@ -2047,8 +2047,15 @@ protected void convertFrom(
case AS:
call = (SqlCall) from;
- convertFrom(bb, call.operand(0));
- if (call.operandCount() > 2
+ SqlNode firstOperand = call.operand(0);
+
+ if (firstOperand.getKind() == SqlKind.UNNEST) {
+ convertUnnest(bb, (SqlCall) firstOperand, getFieldAliases(call));
+ } else {
+ convertFrom(bb, firstOperand);
+ }
Review comment:
Did you notice that i have given a fix patch on the issue ? [1]
[1] https://issues.apache.org/jira/browse/CALCITE-3789
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