amaliujia commented on a change in pull request #1510: [CALCITE-3418] Grouped
Window Function TUMBLE should return "$TUMBLE"…
URL: https://github.com/apache/calcite/pull/1510#discussion_r339356409
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File path: core/src/test/java/org/apache/calcite/test/SqlValidatorTest.java
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@@ -10093,22 +10093,22 @@ private void checkCustomColumnResolving(String
table) {
+ "from orders\n"
+ "group by floor(rowtime to hour)")
.fails("Call to auxiliary group function 'TUMBLE_END' must have "
- + "matching call to group function 'TUMBLE' in GROUP BY clause");
+ + "matching call to group function '\\$TUMBLE' in GROUP BY
clause");
Review comment:
HI @jinxing64. #1481 added TUMBLE to parser so the syntax is still remain
the same. E.g. `GROUP BY TUMBLE(rowtime, interval '2' hour, time '00:12:00')`.
The decision in #1481 was still return `TUMBLE` as the operator name. But in
order to work on https://jira.apache.org/jira/browse/CALCITE-3340, it turns out
that we should return `$TUMBLE` as the operator name (at least it is a more
straightforward way). `$TUMBLE` will only appear when you call
Operator.`getName()` or `toString()`.
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