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2 check-ins using file src/update.c version 79f10ddc

2013-11-08
12:14
Merge change to drop the mutex on the multiplexor before entering the xRead VFS call, in order to enhance parallelizability. (check-in: 3c566e41 user: drh tags: trunk)
01:09
Optimize out a NotExists/NotFound opcode that occurs in UPDATE processing after constraint checks if there is no possiblity that the constraint checking code might have moved the cursor. (check-in: 74e3ee2e user: drh tags: trunk)