LuciferYang commented on code in PR #13202:
URL: https://github.com/apache/gluten/pull/13202#discussion_r4190733285
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gluten-substrait/src/main/java/org/apache/gluten/substrait/expression/WindowFunctionNode.java:
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@@ -72,6 +73,23 @@ public class WindowFunctionNode implements Serializable {
this.originalInputAttributes = originalInputAttributes;
}
+ // A bound that does not parse as a long, such as the -1.50 of RANGE BETWEEN
1.5 PRECEDING on a
+ // decimal key, throws GlutenNotSupportException so the window falls back; a
+ // NumberFormatException would fail the query instead.
+ private static Long
parseOffset(org.apache.spark.sql.catalyst.expressions.Expression boundType) {
+ String raw = String.valueOf(boundType.eval(null));
+ try {
+ return Long.parseLong(raw);
+ } catch (NumberFormatException e) {
+ throw new GlutenNotSupportException(
Review Comment:
Done in 7464ada2f. ClickHouse's `supportWindowExec` now rejects a literal
frame bound that does not parse as a long, through
`WindowFunctionsBuilder.isLongOffset`, which applies the same rule as the
conversion, so a `decimal(10,0)` `10` is still offloaded. The ClickHouse test
now runs with native validation both on and off.
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