chunweilei commented on a change in pull request #1149: [CALCITE-2982]
SqlItemOperator should throw understandable exception …
URL: https://github.com/apache/calcite/pull/1149#discussion_r275119391
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File path: core/src/test/java/org/apache/calcite/test/SqlValidatorTest.java
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@@ -8112,6 +8112,11 @@ public void _testGroupExpressionEquivalenceParams() {
.type("RecordType(VARCHAR(10) OA) NOT NULL");
}
+ @Test public void testItemOperatorException() {
+ sql("select ^name^[0] from dept")
+ .fails("Cannot apply item operator to 'VARCHAR' for field
'DEPT.NAME'");
Review comment:
I think error message like` Cannot apply item operator to 'VARCHAR' type` is
enough.
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