{ "name": "storage_engine", "abstract": "Columnar (colcompress) and row-compressed (rowcompress) Table AMs for PostgreSQL with vectorized GROUP BY aggregation, parallel scan, and zone-map pruning", "description": "storage_engine v2.0 introduces StorageEngineVectorGroupAgg — a vectorized GROUP BY aggregate executor that replaces HashAggregate/GroupAggregate with a batch-oriented HTAB pipeline for COUNT, SUM, MIN, MAX, and AVG over colcompress tables, including parallel partial mode on PG 15–19. The extension also provides colcompress (columnar, MergeTree-style sort key, stripe and chunk-level min/max pruning, parallel DSM scan) and rowcompress (batch-compressed rows, parallel work-stealing scan). Both AMs use zstd by default and coexist safely with heap tables. All catalog objects live in the engine schema; C symbols use the se_ prefix.", "version": "2.0.0", "release_status": "stable", "maintainer": [ "Saulo José Benvenutti " ], "license": "agpl_3", "provides": { "storage_engine": { "abstract": "colcompress and rowcompress Table AMs with vectorized GROUP BY aggregation (v2.0), parallel scan, and zone-map pruning", "file": "src/backend/engine/sql/storage_engine--1.0.sql", "docfile": "README.md", "version": "2.0.0" } }, "prereqs": { "build": { "requires": { "PostgreSQL": "15.0.0" } }, "runtime": { "requires": { "PostgreSQL": "15.0.0" } } }, "resources": { "homepage": "https://github.com/saulojb/storage_engine", "bugtracker": { "web": "https://github.com/saulojb/storage_engine/issues" }, "repository": { "url": "https://github.com/saulojb/storage_engine.git", "web": "https://github.com/saulojb/storage_engine", "type": "git" } }, "generated_by": "Saulo José Benvenutti", "meta-spec": { "version": "1.0.0", "url": "https://pgxn.org/spec/" }, "tags": [ "columnar", "compression", "table access method", "vectorized", "analytics", "colcompress", "rowcompress", "zstd", "lz4", "HTAP" ] }