allow window UDF to return null #6915
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Update the schema produced by the WindowUDF expression to allow user-defined window functions to return NULL.
alamb
approved these changes
Jul 11, 2023
| @@ -365,6 +398,8 @@ struct TestState { | |||
| supports_bounded_execution: bool, | |||
| /// should the functions they need include rank | |||
| include_rank: bool, | |||
| /// should the functions return NULL for 0s? | |||
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Which issue does this PR close?
Closes #6914.
Rationale for this change
What changes are included in this PR?
The schema produced by the
WindowUDFphysical expression is now marked as being nullable.Are these changes tested?
Yes, in the
user_defined_integrationtests.Are there any user-facing changes?
No