Module coverage 

Closed nanosecond interval coverage for catalog data, empty, and deleted segments.

Structs

CatalogCoverageRow

Durable coverage row shared by table-backed catalog implementations.

CoverageIntervals

Effective data and known-empty coverage intervals for one request key.

CoverageSegment

A data, empty, or deleted segment recorded for a catalog key.

Enums

CoverageKind

What a coverage segment records in the catalog log.

Constants

COVERAGE_SCHEMA_VERSION

Functions

compare_coverage_rows_causal

Orders coverage rows causally. data_version is a monotonic ordering token derived from the writer’s base snapshot, not a snapshot handle; rows written before versioning existed carry None and order as version 0, which is correct because every versioned row postdates them. Ties (including compacted rows sharing one version) fall back to the creation timestamp, keeping the order total and transitive on mixed catalogs.

coverage_batch_schema

coverage_intervals_by_kind

Returns effective data and known-empty intervals after applying delete tombstones.

coverage_kind_to_str

coverage_rows_to_batch

Errors

covered_intervals

Returns the effective union of all data and empty segments after applying delete tombstones.

decode_coverage_batches

Errors

deduplicate_and_sort_coverage_rows

deduplicate_coverage_rows

filter_record_batch_by_ts_init_intervals

Errors

last_data_timestamp

Returns the latest timestamp still covered by data after applying deletions.

merge_closed_intervals

Merges closed intervals, treating adjacent intervals as contiguous coverage.

missing_intervals

Returns the portions of [request_start, request_end] not covered by closed intervals.

missing_segments_for_request

Returns the portions of [request_start, request_end] not covered by data or empty segments.

rows_to_segments

Converts valid durable coverage rows to closed segments, skipping inverted ranges.

subtract_interval_from_intervals

Subtracts deleted from already merged coverage intervals.