dssysolyatin commented on code in PR #2918:
URL: https://github.com/apache/calcite/pull/2918#discussion_r979699119
##########
core/src/test/java/org/apache/calcite/test/SqlToRelConverterTest.java:
##########
@@ -4678,4 +4678,14 @@ void checkCorrelatedMapSubQuery(boolean expand) {
.withConformance(SqlConformanceEnum.LENIENT)
.ok();
}
+
+ /**
+ * Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-5297";>[CALCITE-5297]
+ * Casting dynamic variable twice throws exception</a>.
+ */
+ @Test void testDynamicParameterDoubleCast() {
+ String sql = "SELECT CAST(CAST(? AS INTEGER) AS INTEGER)";
Review Comment:
It does not matter which types to use. It threw exception in any cases:
`SELECT CAST(CAST(? AS DATE) AS VARCHAR)`
`SELECT CAST(CAST(? AS INTEGER) AS CHAR)`
I just choose "aesthetically pleasing looking" option
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