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17 check-ins using file src/expr.c version e8765542
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2015-10-16
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| 20:55 | Merge the 3.9.1 updates from trunk. (check-in: bf866e6c user: drh tags: begin-concurrent) | |
| 20:13 | Enhancements to the MSVC makefile. (check-in: 39e8a5d9 user: mistachkin tags: trunk) | |
| 20:12 | Merge the 3.9.1 changes into trunk. (This only updates the version number and configure script since all the other changes in 3.9.1 were cherrypicked from trunk.) (check-in: eb231742 user: drh tags: trunk) | |
| 15:42 | Fix the fuzzershell utility program so that it compiles with the amalgamation that includes JSON1 support. (check-in: d6fc616e user: drh tags: trunk) | |
| 15:35 | Fix the JSON1 extension so that it does not depend on isdigit() and strtod() from the standard library when compiled into SQLite as part of the amalgamation. (check-in: bc9a9a60 user: drh tags: trunk) | |
| 15:16 | Form-feed is not valid whitespace for json. Fix for ticket [57eec374ae1d0a1d] (check-in: 28957d63 user: drh tags: trunk) | |
| 14:54 | Have the sqlite3VdbeSerialType() function go ahead and compute the serial length as well, since it is always needed. This avoids unnecessary calls to sqlite3VdbeSerialTypeLen(). (check-in: 2ad72be1 user: drh tags: trunk) | |
| 14:23 | Use a lookup table to compute the content length for serial types less than 128, for a 1.2% performance improvement. (check-in: 33957248 user: drh tags: trunk) | |
| 13:50 | Simplify the OP_Column logic slightly. One very small performance improvement added. (check-in: 0114b45d user: drh tags: trunk) | |
| 12:53 | OP_Column optimization: Do not check for an oversize row header unless the row header size is larger than the content available on the local page. (check-in: 8125b74c user: drh tags: trunk) | |
| 12:39 | Improved header comment on the tool/vdbe_profile.tcl script. No changes to code. (check-in: b17ad8fc user: drh tags: trunk) | |
| 03:34 | Whenever two or more OP_Column opcodes on the same cursor occur in succession, try to reordering them so that the one that extracts the right-most column is first, so that it will warm up the row cache for all those that follow. This gives a small performance boost. (Leaf check-in: 08e8f04d user: drh tags: reorder-column-opcodes) | |
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2015-10-15
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| 21:30 | Performance optimization for the OP_Column opcode. (check-in: 076be547 user: drh tags: trunk) | |
| 21:13 | Merge updates from trunk. (Leaf check-in: 40493680 user: mistachkin tags: mutexInitIsInitReCheck) | |
| 21:12 | Merge updates from trunk. (Leaf check-in: a447cf90 user: mistachkin tags: mutexInitSimpleCmpSwap) | |
| 20:17 | Experiments with an OP_Unpack opcode that extracts multiple columns from a record without caching. (Leaf check-in: 39ae92f5 user: drh tags: unpack-opcode) | |
| 19:21 | Enhance the use of the column cache for UPDATE statements, making them more efficient for the case where a column is modified to be an expression of other unmodified columns. (check-in: 871e091d user: drh tags: trunk) | |