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30 check-ins using file src/mem2.c version 37c410e2

2008-04-02
18:33
Minor optimizations. (CVS 4955) (check-in: e8529455 user: drh tags: trunk)
16:29
Simplifications to the LockTable opcode. (CVS 4954) (check-in: 66c5d715 user: drh tags: trunk)
04:23
Set flags = MEM_Null on allocation failure in sqlite3VdbeMemGrow (CVS 4953) (check-in: 846f9739 user: mlcreech tags: trunk)
2008-04-01
18:04
Avoid factoring single-instruction constants that end up getting replaced by an SCopy instruction. (CVS 4952) (check-in: e84ff57b user: drh tags: trunk)
15:06
Add the testcase() macro. Additional CSE test coverage. (CVS 4951) (check-in: 492490f9 user: drh tags: trunk)
12:24
Fix a problem with CASTs and the new CSE mechanism. (CVS 4950) (check-in: e25939fb user: drh tags: trunk)
05:07
Fix the CSE mechanism so that it takes into account column affinity changes that might be imposed by comparison operators. (CVS 4949) (check-in: 91cc646e user: drh tags: trunk)
03:27
More test cases and bug fixes with CSE. (CVS 4948) (check-in: 7e815612 user: drh tags: trunk)
02:45
Add a configure option for using gcov (makes things easier for versions of GCC that fail to build otherwise) (CVS 4947) (check-in: 7d1e7971 user: mlcreech tags: trunk)
01:42
Initial test cases and bug fixes in the CSE logic. (CVS 4946) (check-in: e5aff09a user: drh tags: trunk)
00:36
Break up the implementation of OP_Move, OP_Copy, and OP_SCopy to reduce the number of branch instructions. (CVS 4945) (check-in: 53e533d3 user: drh tags: trunk)
2008-03-31
23:51
Add the veryquick.test script for a very fast overview test that omits all i/o and malloc testing. (CVS 4944) (check-in: f61df8da user: drh tags: trunk)
23:48
Avoid duplicate OP_Column opcodes by remembering prior results. This is similar to CSE, but only applies to columns. (CVS 4943) (check-in: c29ee0fe user: drh tags: trunk)
18:19
Factor constant subexpressions out of loops. (CVS 4942) (check-in: 2126db39 user: drh tags: trunk)
17:41
In setQuotedToken(), only make a malloced copy if the argument contains one or more " characters. (CVS 4941) (check-in: b266924b user: danielk1977 tags: trunk)
2008-03-29
23:25
Minor cleanup: Use size_t for struct size cast (CVS 4940) (check-in: 618df68b user: mlcreech tags: trunk)
17:26
Set exclusive locking mode by default on the speed4p test. (CVS 4939) (check-in: 2d9fea95 user: drh tags: trunk)
16:01
Make the sqlite3BtreeMoveto routine a no-op if the cursor is already pointing at the cell we are trying to move to. (CVS 4938) (check-in: 9b567ab6 user: drh tags: trunk)
12:50
add two missing initializer values (CVS 4937) (check-in: bf28f1c2 user: rse tags: trunk)
12:47
eliminate compile-time warnings related to missing field initializations (CVS 4936) (check-in: d6a34d98 user: rse tags: trunk)
12:39
add three missing initializers (CVS 4935) (check-in: f45f0593 user: rse tags: trunk)
11:00
Add the --pause option to the main test driver. (CVS 4934) (check-in: 37dfcdf5 user: drh tags: trunk)
2008-03-28
19:16
Fix a problem with min() and descending indexes. (CVS 4933) (check-in: 39705b61 user: danielk1977 tags: trunk)
19:16
Fix a memory leak that can occur when the library API is misused. (CVS 4932) (check-in: 2b6d3e01 user: danielk1977 tags: trunk)
19:15
Do not incorrectly report a malloc() failure when allocating 0 bytes. Fixes a problem in bind.test. (CVS 4931) (check-in: b99d19d6 user: danielk1977 tags: trunk)
18:11
Fix for #3022. Handle queries like "SELECT min(b) FROM T WHERE a = X AND b > X" when there is an index on (a,b). (CVS 4930) (check-in: bce28975 user: danielk1977 tags: trunk)
17:41
Change the pager's sector size algorithm to the maximum of the size reported by xSectorSize() from the VFS and 512. It was using the maximum of xSectorSize() and the current page size, but that was adding an extra 512 bytes to the size of the journal file in the common case. (CVS 4929) (check-in: 17ea0c97 user: drh tags: trunk)
15:44
Changes to the Mem structure to reduce the frequency of freeing and reallocating the dynamic buffer. (CVS 4928) (check-in: d0bf73d8 user: danielk1977 tags: trunk)
12:53
Patch to the new memory tracing logic that allows it to build even if memory debugging is turned off. (CVS 4927) (check-in: 0a9c63b2 user: drh tags: trunk)
07:42
If memory is leaked when running a test script with the --malloctrace option, write out a file called leaks.sql in the same format as mallocs.sql containing th e leaked applications. The same tools can then be used to examine the stack traces associated with leaked allocations. (CVS 4926) (check-in: f1b97ed9 user: danielk1977 tags: trunk)