findepi commented on issue #11785:
URL: https://github.com/apache/datafusion/issues/11785#issuecomment-2644158363
This is still a problem. The error message requires the index to be Int64,
but it doesn't work even if it is Int64
```
query error
SELECT column1[arrow_cast(1, 'Int64')] FROM map_array_table_1
----
DataFusion error: Error during planning: Failed to coerce arguments to
satisfy a call to 'array_element' function: coercion from [Map(Field { name:
"entries", data_type: Struct([Field { name: "key", data_type: Int64, nullable:
false, dict_id: 0, dict_is_ordered: false, metadata: {} }, Field { name:
"value", data_type: List(Field { name: "item", data_type: Int64, nullable:
true, dict_id: 0, dict_is_ordered: false, metadata: {} }), nullable: true,
dict_id: 0, dict_is_ordered: false, metadata: {} }]), nullable: false, dict_id:
0, dict_is_ordered: false, metadata: {} }, false), Int64] to the signature
ArraySignature(ArrayAndIndexes(1)) failed No function matches the given name
and argument types 'array_element(Map(Field { name: "entries", data_type:
Struct([Field { name: "key", data_type: Int64, nullable: false, dict_id: 0,
dict_is_ordered: false, metadata: {} }, Field { name: "value", data_type:
List(Field { name: "item", data_type: Int64, nullable: true, dict_id: 0,
dict_is_ordered:
false, metadata: {} }), nullable: true, dict_id: 0, dict_is_ordered: false,
metadata: {} }]), nullable: false, dict_id: 0, dict_is_ordered: false,
metadata: {} }, false), Int64)'. You might need to add explicit type casts.
Candidate functions:
array_element(array, index)
```
cc @jayzhan211
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