tanclary commented on code in PR #3008:
URL: https://github.com/apache/calcite/pull/3008#discussion_r1067221618
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core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java:
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@@ -700,6 +727,14 @@ private SqlLibraryOperators() {
ReturnTypes.TIMESTAMP_NULLABLE, OperandTypes.INTEGER,
SqlFunctionCategory.TIMEDATE);
+ /** 2-argument form of the special minus-date operator
Review Comment:
I parameterized the return-type inference because the standard MINUS_DATE
operator has three arguments, and the return type is specified as ARG2. This is
incompatible with BigQuery because there are only two arguments (the
time/date/timestamp expression, and the interval being subtracted).
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