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cache super.Type-to-ID mapping in super.TypeDefs.LookupType - #7252

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nwt merged 1 commit into
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super.TypeDefs.toID
Aug 27, 2026
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cache super.Type-to-ID mapping in super.TypeDefs.LookupType#7252
nwt merged 1 commit into
mainfrom
super.TypeDefs.toID

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@nwt

@nwt nwt commented Aug 27, 2026

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This improves performance significantly for repeated calls to TypeDefs.LookupType* methods with the same arguments, as happens when building result records during a hash join.

Fixes #7192.

This improves performance significantly for repeated calls to
TypeDefs.LookupType* methods with the same arguments, as happens when
building result records during a hash join.
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nwt requested a review from a team August 27, 2026 19:39
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nwt merged commit 9ec409f into main Aug 27, 2026
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nwt deleted the super.TypeDefs.toID branch August 27, 2026 20:47
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~1.5x perf drop in Parquet query performance at commit 5bf0db0

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