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PostgreSQL 18 just dropped: 10 powerful new features devs need to know
- PostgreSQL 18 beta release focuses on developer-friendly features like faster data imports, cleaner UPSERTs, and enhanced replication setups.
- Key features include parallel COPY from file to table for faster data loading with multiple workers.
- Logical replication now supports DDL statements, making schema changes easier to replicate without manual intervention.
- Introduction of JSON_TABLE function allows querying JSON data as a relational table, simplifying data extraction.
- UNIQUE NULLS DISTINCT constraint treats NULL values as unique, resolving SQL confusion around unique constraints.
- Performance improvements for SQL and PL/pgSQL functions enhance execution efficiency and planning.
- EXPLAIN VERBOSE enhancements provide detailed insights for debugging query performance.
- pg_stat_io view offers native I/O monitoring capabilities for better performance tuning and understanding query patterns.
- Improved logical replication now includes support for replicating sequences for consistent IDs across nodes.
- MERGE statement enhancements in PostgreSQL 18 offer cleaner UPSERT operations and improved syntax handling.
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