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Function isOffsetLimitSubset

packages/db/src/query/predicate-utils.ts:813–840  ·  view source on GitHub ↗
(
  subset: { offset?: number; limit?: number },
  superset: { offset?: number; limit?: number },
)

Source from the content-addressed store, hash-verified

811 * @returns true if subset range is fully contained within superset range
812 */
813export function isOffsetLimitSubset(
814 subset: { offset?: number; limit?: number },
815 superset: { offset?: number; limit?: number },
816): boolean {
817 const subsetOffset = subset.offset ?? 0
818 const supersetOffset = superset.offset ?? 0
819
820 // Superset must start at or before subset
821 if (supersetOffset > subsetOffset) {
822 return false
823 }
824
825 // If superset is unlimited, it covers everything from its offset onwards
826 if (superset.limit === undefined) {
827 return true
828 }
829
830 // If subset is unlimited but superset has a limit, subset can't be satisfied
831 if (subset.limit === undefined) {
832 return false
833 }
834
835 // Both have limits - check if subset range is within superset range
836 const subsetEnd = subsetOffset + subset.limit
837 const supersetEnd = supersetOffset + superset.limit
838
839 return subsetEnd <= supersetEnd
840}
841
842/**
843 * Check if one predicate (where + orderBy + limit + offset) is a subset of another.

Callers 2

isPredicateSubsetFunction · 0.85

Calls

no outgoing calls

Tested by

no test coverage detected