jkosh44 commented on code in PR #14289:
URL: https://github.com/apache/datafusion/pull/14289#discussion_r1929642070
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datafusion/functions-nested/src/extract.rs:
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@@ -330,7 +330,8 @@ pub(super) struct ArraySlice {
impl ArraySlice {
pub fn new() -> Self {
Self {
- signature: Signature::variadic_any(Volatility::Immutable),
+ // TODO: This signature should use the actual accepted types, not
variadic_any.
Review Comment:
I haven't been able to figure out a way using the current `TypeSignature` to
create a type signature that accepts (any list type, i64, i64). My only idea is
to extend `ArrayFunctionSignature` with a variant like
`ArrayAndElements(NonZeroUsize)`.
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