[core] Narrow format table partition listing by name pattern - #9025
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JingsongLi merged 1 commit intoAug 4, 2026
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Derive a conservative partition name pattern from partition predicates and pass it to catalog partition listing, so a filtered query over a catalog-managed format table does not enumerate every partition. Only equality and bounded range predicates on leading partition fields produce a pattern. Anything unrepresentable falls back to the unfiltered listing, so no matching partition can be dropped. String prefixes are computed by Unicode code point, so a generated pattern never contains an isolated surrogate.
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Purpose
A filtered query over a catalog-managed format table still lists every partition. This PR derives a conservative partition name pattern from equality and bounded range predicates on leading partition fields, and passes it to the paged partition listing. A predicate that cannot be represented safely falls back to the unfiltered listing, so no matching partition can be dropped. String prefixes are computed by Unicode code point, so a generated pattern never contains an isolated surrogate.
Tests
PartitionNamePatternsTestandCatalogFormatTablePartitionManagerTestcover equality and range combinations, unsupported predicates, null boundaries, escaping, Unicode supplementary characters, and the manager integration.