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## SQLite Release 3.7.8 On 2011 September 19 (3.7.8)

- Orders of magnitude performance improvement for CREATE INDEX on very large tables.
- Improved the windows VFS to better defend against interference from anti-virus software.
- Improved query plan optimization when the DISTINCT keyword is present.
- Allow more system calls to be overridden in the unix VFS - to provide better support for chromium sandboxes.
- Increase the default size of a lookahead cache line from 100 to 128 bytes.
- Enhancements to the test_quota.c module so that it can track preexisting files.
- Bug fix: Virtual tables now handle IS NOT NULL constraints correctly.
- Bug fixes: Correctly handle nested correlated subqueries used with indices in a WHERE clause.
- SQLITE_SOURCE_ID: "2011-09-19 14:49:19 3e0da808d2f5b4d12046e05980ca04578f581177"
- SHA1 for sqlite3.c: bfcd74a655636b592c5dba6d0d5729c0f8e3b4de

A complete list of SQLite releases in a single page is also available. A detailed history of every check-in is available at http://www.sqlite.org/src/timeline.