Add `TimestampWithOffset` canonical extension type#558

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serramatutu:serramatutu/TimestampWithOffset/go

Commits on Jul 9, 2026

Add `TimestampWithOffset` extension type

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Allow dictionary encoding of `TimestampWithOffset`

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Allow run-end encoding of `TimestampWithOffset`

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Optimize `Values()` and `MarshalJSON()` for REE

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General code smell patches

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Test with `-08:30` and `11:00` timezone

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Rename constructors

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Leverage generics for REE and dict-encoding

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Make equals also check for data type

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Remove outdated docs

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Remove unnecessary IsInteger call

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Remove specific type for `TimestampWithOffsetRunEndsType`

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Uncomment test

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Fix REE ends type

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Support unix epoch

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Fix inconsistency with `UnsafeAppend()`

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Stop appending nulls to child arrays

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Fix lint

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Simplify `fieldValuesFromTime()` implementation

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Add subtests

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Fix run-end-encoded offset builder in TimestampWithOffset AppendValues
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Fix TimestampWithOffset builder nil validity and reuse handling
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Treat empty validity slice as all-valid in TimestampWithOffset builder
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Reset REE run tracker on TimestampWithOffset builder null paths
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Decouple JSON roundtrip test from inner-nullability comparison
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Fix run-end-encoded offset decoding for sliced TimestampWithOffset arrays
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Commits on Jul 10, 2026

Commits on Jul 12, 2026

Commits on Jul 14, 2026

test(extensions): add FIXME to revisit RecordEqual on TimestampWithOffset roundtrip
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