SQLite Release 3.7.4 On 2010 December 08 (3.7.4)

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## SQLite Release 3.7.4 On 2010 December 08 (3.7.4)

- Added the sqlite3_blob_reopen() interface to allow an existing sqlite3_blob object to be rebound to a new row.
- Use the new sqlite3_blob_reopen() interface to improve the performance of FTS.
- VFSes that do not support shared memory are allowed to access WAL databases if PRAGMA locking_mode is set to EXCLUSIVE.
- Enhancements to EXPLAIN QUERY PLAN.
- Added the sqlite3_stmt_readonly() interface.
- Added PRAGMA checkpoint_fullfsync.
- Added the SQLITE_FCNTL_FILE_POINTER option to sqlite3_file_control().
- Added support for FTS4 and enhancements to the FTS matchinfo() function.
- Added the test_superlock.c module which provides example code for obtaining an exclusive lock to a rollback or WAL database.
- Added the test_multiplex.c module which provides an example VFS that provides multiplexing (sharding) of a DB, splitting it over multiple files of fixed size.
- A very obscure bug associated with the or optimization was fixed.

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.