asfimport opened a new issue, #86:
URL: https://github.com/apache/arrow-js/issues/86
```
$ node
const g = require('apache-arrow')
g.tableFromJSON([\{a: [ { b: "hi" } ]}])
```
The dictionary types:
TYPE Dictionary \{indices: Int32, dictionary: Utf8, isOrdered: false, id:
12}dictionary: Utf8 {}id: 12indices: Int32 \{isSigned: true, bitWidth:
32}isOrdered: falseArrayType: (...)children: (...)typeId: (...)valueType:
(...)[[Prototype]]: Dictionary
typecomparator.ts:191 OTHER
OTHER Dictionary \{indices: Int32, dictionary: Utf8, isOrdered: false, id:
14}dictionary: Utf8typeId: (...)[[Prototype]]: Utf8id: 14indices: Int32
\{isSigned: true, bitWidth: 32}isOrdered: falseArrayType: (...)children:
(...)typeId: (...)valueType: (...)[[Prototype]]: Dictionary
This happens here:
else if (arraysCount + nullsCount === value.length) {
const array = value;
const childType = inferType(array[array.findIndex((ary) => ary !=
null)]);
if (array.every((ary) => ary == null || (0,
typecomparator_js_1.compareTypes)(childType, inferType(ary)))) {
return new dtypes.List(new schema_js_1.Field('', childType,
true));
}
}
So we're always instantiating a new dictionary type, with a new id, when we
do inferType(ary), so this is never going to succeed.
**Reporter**: [Samuel
Schneck](https://issues.apache.org/jira/browse/ARROW-18208)
**Assignee**: [Samuel
Schneck](https://issues.apache.org/jira/browse/ARROW-18208)
#### PRs and other links:
- [GitHub Pull Request
apache/arrow#14554](https://github.com/apache/arrow/pull/14554)
<sub>**Note**: *This issue was originally created as
[ARROW-18208](https://issues.apache.org/jira/browse/ARROW-18208). Please see
the [migration documentation](https://github.com/apache/arrow/issues/14542) for
further details.*</sub>
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