kou commented on issue #13847:
URL: https://github.com/apache/arrow/issues/13847#issuecomment-1212680571
Can we close this?
BTW, `Hash` is preferred than `Array`:
```ruby
column_types: {
created_time: Arrow::TimestampDataType.new(Arrow::TimeUnit::MILLI), #
[:timestamp, :milli] will work
completed_time: Arrow::TimestampDataType.new(Arrow::TimeUnit::MILLI), #
[:timestamp, :milli] will work
query_id: :uint16,
}
```
```
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