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1 check-in using file src/btree.c version 616212ac

This hack illustrates how to use the VDBE_PROFILE mechanism to show which bytecode operators are using resources other than time. In this case, the number of loops through the binary search code in sqlite3BtreeMovetoUnpacked() is measured, for the purpose of helping to identify unnecessary btree searches. check-in: 746b1836 user: drh tags: vdbe-aux-perf