SQLite 3.39.3 Release Highlights: New JOIN Support, Binary Comparison Operators, and Performance Optimizations
SQLite 3.39.3, the latest version of the widely used embedded SQL database engine, introduces RIGHT and FULL OUTER JOIN support, new binary comparison operators IS NOT DISTINCT FROM and IS DISTINCT FROM, additional APIs such as sqlite3_db_name, enhanced file‑name handling, HAVING clause for aggregates, and overall CPU optimizations reducing cycles by about 2.3%.
SQLite is a C library that implements a small, fast, self‑contained, high‑reliability, full‑featured SQL database engine, and it is the most widely deployed database engine in the world.
Version 3.39.3 has been officially released with the following updates:
Support for RIGHT and FULL OUTER JOIN.
New binary comparison operators IS NOT DISTINCT FROM and IS DISTINCT FROM , compatible with PostgreSQL and the SQL standard.
Added a new return code (value “3”) to the sqlite3_vtab_distinct() interface, indicating a query that contains both DISTINCT and ORDER BY.
New sqlite3_db_name() interface.
Unix OS interface now resolves all symbolic links in the database filename, providing a canonical name before opening; opening fails when SQLITE_OPEN_NOFOLLOW is used and any path component is a symlink.
All aggregate queries now allow a HAVING clause on SELECT statements, even without a GROUP BY clause.
Numerous small optimizations collectively reduce CPU cycles by approximately 2.3%.
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