beyond1920 commented on code in PR #2606:
URL: https://github.com/apache/calcite/pull/2606#discussion_r906838046
##########
core/src/main/java/org/apache/calcite/sql/SqlTableFunction.java:
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@@ -30,4 +32,15 @@ public interface SqlTableFunction {
* @return strategy to infer the row type of a call to this function
*/
SqlReturnTypeInference getRowTypeInference();
+
+ /**
+ * Returns the table parameter characteristics for <code>ordinal</code>th
argument to this
+ * table function.
Review Comment:
Good catch.
It would return null if the ordinal Nth argument is not table parameters or
the original is < 0 or >= the number of parameters.
I've updated the comments of the function.
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