julianhyde commented on a change in pull request #1811: [CALCITE-3789] Support
validation of UNNEST multiple array columns like Presto
URL: https://github.com/apache/calcite/pull/1811#discussion_r404211535
##########
File path:
core/src/main/java/org/apache/calcite/sql/validate/SqlConformance.java
##########
@@ -431,7 +438,22 @@
* {@link SqlConformanceEnum#STRICT_2003},
* {@link SqlConformanceEnum#ORACLE_10},
* {@link SqlConformanceEnum#ORACLE_12};
+ * {@link SqlConformanceEnum#PRESTO};
* true otherwise.
*/
boolean allowQualifyingCommonColumn();
+
+ /**
+ * Whether directly alias array columns in UNNEST.
+ *
+ * <p>E.g. in UNNEST(a_array, b_array) AS T(a, b),
+ * a and b will be aliases of a_array and b_array
+ * respectively
Review comment:
What is the most logical place for this function inside SqlConformance? I
bet it's not at the very end.
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