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Support FixedSizeList for array_except #17658

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Merged
merged 1 commit into from
Sep 20, 2025
+16 −2
Merged

Support FixedSizeList for array_except #17658

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8 changes: 6 additions & 2 deletions datafusion/functions-nested/src/except.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ use arrow::array::{cast::AsArray, Array, ArrayRef, GenericListArray, OffsetSizeT
use arrow::buffer::OffsetBuffer;
use arrow::datatypes::{DataType, FieldRef};
use arrow::row::{RowConverter, SortField};
use datafusion_common::utils::take_function_args;
use datafusion_common::utils::{take_function_args, ListCoercion};
use datafusion_common::{internal_err, HashSet, Result};
use datafusion_expr::{
ColumnarValue, Documentation, ScalarUDFImpl, Signature, Volatility,
Expand Down Expand Up @@ -81,7 +81,11 @@ impl Default for ArrayExcept {
impl ArrayExcept {
pub fn new() -> Self {
Self {
signature: Signature::any(2, Volatility::Immutable),
signature: Signature::arrays(
2,
Some(ListCoercion::FixedSizedListToList),
Volatility::Immutable,
),
aliases: vec!["list_except".to_string()],
}
}
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10 changes: 10 additions & 0 deletions datafusion/sqllogictest/test_files/array.slt
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Expand Up @@ -7285,6 +7285,16 @@ select array_except(null, null)
----
NULL

query ?
select array_except(arrow_cast([1, 2, 3, 4], 'LargeList(Int64)'), arrow_cast([5, 6, 3, 4], 'LargeList(Int64)'));
----
[1, 2]

query ?
select array_except(arrow_cast([1, 2, 3, 4], 'FixedSizeList(4, Int64)'), arrow_cast([5, 6, 3, 4], 'FixedSizeList(4, Int64)'));
----
[1, 2]

### Array operators tests


Expand Down