alamb commented on issue #8657: URL: https://github.com/apache/arrow-rs/issues/8657#issuecomment-3534619539
Here is the schema
```
Schema: SchemaDescriptor {
schema: GroupType {
basic_info: BasicTypeInfo {
name: "arrow_schema",
repetition: None,
converted_type: NONE,
logical_type: None,
id: None,
},
fields: [
PrimitiveType {
basic_info: BasicTypeInfo {
name: "id",
repetition: Some(
REQUIRED,
),
converted_type: NONE,
logical_type: None,
id: None,
},
physical_type: INT32,
type_length: -1,
scale: -1,
precision: -1,
},
GroupType {
basic_info: BasicTypeInfo {
name: "vector",
repetition: Some(
OPTIONAL,
),
converted_type: LIST,
logical_type: Some(
List,
),
id: None,
},
fields: [
GroupType {
basic_info: BasicTypeInfo {
name: "list",
repetition: Some(
REPEATED,
),
converted_type: NONE,
logical_type: None,
id: None,
},
fields: [
PrimitiveType {
basic_info: BasicTypeInfo {
name: "item",
repetition: Some(
OPTIONAL,
),
converted_type: NONE,
logical_type: None,
id: None,
},
physical_type: FLOAT,
type_length: -1,
scale: -1,
precision: -1,
},
],
},
],
},
],
},
}
```
here is the mask (no mask == all columns)
```
Projection mask: ProjectionMask {
mask: None,
}
```
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