• Fix two problems in the new LEFT JOIN strength reduction optimization.
• Fix misbehavior of the FTS5 xBestIndex method.
• Fix a harmless reference to an uninitialized virtual machine register.
• Fix the CLI so that it builds with -DSQLITE_UNTESTABLE.
• Fix the eval.c extension so that it works with PRAGMA empty_result_callbacks=ON.
• Fix the generate_series virtual table so that it correctly returns no rows if any of its constraints are NULL.
• Performance enhancements in the parser.

Signed-off-by: Pierre-Yves <pyu@riseup.net>

• run sqlite test.db -> .show -> .databases
• create table xxx ..., insert into table xxx, select * from xxx