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fix: Nullable base types with prefix#1624

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SpencerTorres merged 2 commits intomainfrom
fix_nullable_json
Jul 30, 2025
Merged

fix: Nullable base types with prefix#1624
SpencerTorres merged 2 commits intomainfrom
fix_nullable_json

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@SpencerTorres SpencerTorres commented Jul 30, 2025

Summary

Fixes Nullable for types with a prefix. Previously this was uncommon since things like Nullable(LowCardinality(String)) are not possible, this is usually written as LowCardinality(Nullable(String)).

Nullable(JSON) is possible however, and this change fixes parsing for this type and similar types with a prefix.

Support added in ClickHouse/ClickHouse#73556, available in ClickHouse v25.2

Checklist

  • Unit and integration tests covering the common scenarios were added

@SpencerTorres SpencerTorres merged commit 3fa9e16 into main Jul 30, 2025
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@SpencerTorres SpencerTorres deleted the fix_nullable_json branch July 30, 2025 08:17
@SpencerTorres SpencerTorres mentioned this pull request Sep 2, 2025
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