[Nested] Fix: 16489 - Find NULLs in lists using list_position
#17080
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taniabogatsch
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[Nested] Fix: 16489 - Find `NULL`s in lists using `list_position` (duckdb/duckdb#17080)
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[Nested] Fix: 16489 - Find `NULL`s in lists using `list_position` (duckdb/duckdb#17080)
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[Nested] Fix: 16489 - Find `NULL`s in lists using `list_position` (duckdb/duckdb#17080)
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[Nested] Fix: 16489 - Find `NULL`s in lists using `list_position` (duckdb/duckdb#17080)
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Previously, when calling
list_position([1, 2, 3, NULL], NULL), the function would always returnNULLinstead of the index of theNULLelement. This behavior differed from PostgreSQL. This PR fixes the issue, so thatlist_positionnow correctly returns the index of the element, regardless of whether or not it isNULL.This PR builds on: #16969
Fixes: #16489