PostgreSQL 19 Beta Introduces SQL Graph Queries and Concurrent Table Repacking
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PostgreSQL 19 with SQL graph queries is a major technical advancement.
Summary
PostgreSQL 19 Beta introduces native SQL Property Graph Queries (SQL/PGQ), enabling graph traversal over existing relational tables without a separate database. The release also adds a nonblocking REPACK CONCURRENTLY command for online table rebuilds, up to 2x faster inserts with foreign key checks, and automatic sequence synchronization in logical replication. Operational improvements include parallel autovacuum, 64-bit MultiXactOffset to eliminate wraparound risk, and WAIT FOR LSN for read replica consistency, while JIT compilation is now off by default.