orioledb

orioledb : OrioleDB, the next generation transactional engine

Overview

Packages

Source

pig build pkg orioledb;		# build rpm/deb

Install

Make sure PGDG and PIGSTY repo available:

pig repo add pgsql -u   # add both repo and update cache

Install this extension with pig:

pig install orioledb;		# install via package name, for the active PG version

pig install orioledb -v 18;   # install for PG 18
pig install orioledb -v 17;   # install for PG 17
pig install orioledb -v 16;   # install for PG 16

Config this extension to shared_preload_libraries:

shared_preload_libraries = 'orioledb';

Create this extension with:

CREATE EXTENSION orioledb;

Usage

Sources: README, beta16 release, patched PostgreSQL tree

OrioleDB is a new storage engine for PostgreSQL that provides modern approaches to database capacity, capabilities, and performance. It uses undo log-based MVCC, copy-on-write checkpoints, and row-level WAL to eliminate bloat and the need for VACUUM.

Configuration

Add to postgresql.conf (requires restart):

shared_preload_libraries = 'orioledb.so'

Then enable the extension:

CREATE EXTENSION orioledb;

Creating Tables

Use the USING orioledb clause to create tables with the OrioleDB storage engine:

CREATE TABLE my_table (
    id serial PRIMARY KEY,
    name text,
    value numeric
) USING orioledb;

All standard PostgreSQL operations work on OrioleDB tables:

INSERT INTO my_table (name, value) VALUES ('test', 42);
SELECT * FROM my_table WHERE id = 1;
UPDATE my_table SET value = 100 WHERE id = 1;
DELETE FROM my_table WHERE id = 1;

Collation Requirements

OrioleDB tables support only ICU, C, and POSIX collations. To avoid specifying COLLATE on every text field, create the database with an appropriate default:

CREATE DATABASE mydb LOCALE 'C' TEMPLATE template0;
-- OR
CREATE DATABASE mydb LOCALE_PROVIDER icu ICU_LOCALE 'en' TEMPLATE template0;

Key Benefits

• No bloat: Undo log-based MVCC means old tuple versions do not bloat main storage
• No VACUUM needed: Page-merging and undo log reclaim space automatically
• No wraparound problem: Native 64-bit transaction identifiers
• Lock-less page reading: In-memory pages linked directly to storage pages
• Row-level WAL: Compact write-ahead logging suitable for parallel apply

Limitations

• Public beta status – recommended for testing, not production
• Requires a patched PostgreSQL build from orioledb/postgres
• Only ICU, C, and POSIX collations are supported

Version Notes

OrioleDB 1.8-beta16 bumps the extension SQL version to 1.8, bases patched PostgreSQL builds on 16.13, 17.9, and 18.4, and adds PostgreSQL 18 support. New user-facing surfaces include orioledb.serializable for SERIALIZABLE support and verify_orioledb(regclass, boolean) for pg_amcheck integration. The release also includes recovery, replication, index-scan, vacuum, and DDL correctness fixes.