[jira] [Created] (ARROW-16543) [JS] Timestamp types are all the same

["Teodor Kostov (Jira)" <ji...@apache.org>]

Teodor Kostov created ARROW-16543:
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             Summary: [JS] Timestamp types are all the same
                 Key: ARROW-16543
                 URL: https://issues.apache.org/jira/browse/ARROW-16543
             Project: Apache Arrow
          Issue Type: Bug
          Components: JavaScript
            Reporter: Teodor Kostov


Current timestamp types are all the same. They have the same representation. And also the same precision.

For example, {{TimestampSeconds}} and {{TimestampMilliseconds}} return the values as {{1652118180000}}. Instead, I would expect the {{TimestampSeconds}} to drop the 3 zeros when returning a value, e.g. {{1652118180}}. Also, the representation underneath is still an {{int32}} array. Even though for {{TimestampSeconds}} every second value is {{0}}, the array still has double the amount of integers.

I also got an error when trying to read a {{Date}} as {{TimestampNanoseconds}} - {{TypeError: can't convert 1652118180000 to BigInt}}.



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