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28 check-ins using file src/select.c version cc8640e5

2003-01-08
13:02
Port ot MacOS Classic. Ticket #218. (CVS 820) (check-in: 13f82d67 user: drh tags: trunk)
2003-01-07
14:46
Avoid calling truncate() and stat() on the checkpoint journal to improve the speed of a large number of UPDATEs within a transaction. (CVS 819) (check-in: 2f89e9e6 user: drh tags: trunk)
13:55
In the VDBE, allocate space to hold column names when the VDBE first starts. The ColumnCount opcode now just writes the null terminator into this space. (CVS 818) (check-in: 46d8f5e3 user: drh tags: trunk)
13:43
When constructing records and index keys, use static string space rather than mallocing (when possible) for a small speed improvement. (CVS 817) (check-in: 657c9fb5 user: drh tags: trunk)
02:47
More optimizations. (CVS 816) (check-in: a362981b user: drh tags: trunk)
01:44
Optimizations to the tokenizer. (CVS 815) (check-in: 032b3daa user: drh tags: trunk)
2003-01-06
23:54
Remove unnecessary code from the VDBE. (CVS 814) (check-in: b96ec281 user: drh tags: trunk)
2003-01-05
21:41
More optimizations. (CVS 813) (check-in: 5809132f user: drh tags: trunk)
2003-01-04
19:44
Parameterize the number of adjacent pages that participate in the balancing algorithm in the BTree. But leave the setting at the current value of 3. (CVS 812) (check-in: 6c304024 user: drh tags: trunk)
18:53
Another optimization to the btree logic. (CVS 811) (check-in: 03d20673 user: drh tags: trunk)
16:48
Optimizations to the BTree module for a modest speed improvement. (CVS 810) (check-in: 39902a70 user: drh tags: trunk)
2003-01-03
02:04
Allow the rollback journal to be empty except for its header. Ticket #212. (CVS 809) (check-in: 1ba41bc2 user: drh tags: trunk)
2003-01-02
14:43
Code optimizations to help the library run faster. (CVS 808) (check-in: db745e87 user: drh tags: trunk)
2003-01-01
23:06
If compiled with the -DVDBE_PROFILE=1 option, special code is inserted that uses the pentium RDTSC instruction to compute very precise runtimes on all VDBE opcodes. (This only works on i586 processors, of course.) The results are written into the vdbe_profile.out file for analysis. Hopefully, this new feature will reveal hot spots that can be optimized to make the VDBE run faster. (CVS 807) (check-in: a1c071ea user: drh tags: trunk)
2002-12-28
01:26
Version 2.7.5 (CVS 806) (check-in: ee95eefe user: drh tags: trunk)
01:10
Update the version number to 2.7.5. (CVS 805) (check-in: b0864cc9 user: drh tags: trunk)
01:06
Fix an uninitialized variable in the pager. Tickets #208 and #206. Bug introduced by check-in (795). (CVS 804) (check-in: f3dc686e user: drh tags: trunk)
2002-12-17
22:50
Version 2.7.4 (CVS 803) (check-in: 0224db6f user: drh tags: trunk)
14:30
Preparing for the 2.7.4 release. (CVS 802) (check-in: f685ae15 user: drh tags: trunk)
14:19
If the "fake_big_file" command fails, be sure to close the file before returning. (CVS 801) (check-in: fa1b5e21 user: drh tags: trunk)
14:13
Make sure the host machine has enough disk space before running the large file tests. (CVS 800) (check-in: b1ec5478 user: drh tags: trunk)
13:05
Take care not to modify the sqlite* pointer to sqlite_exec() if we suspect that the pointer is stale - that it has previously been passed to sqlite_close(). Possible fix for ticket #202. Prior to this fix, test misuse-5.3 was causing a change to a buffer that had been previously free()-ed. (CVS 799) (check-in: f04547ed user: drh tags: trunk)
2002-12-07
21:45
Save the full pathname of the database file so that journalling still works even if the user changes working directories after opening the databae. Ticket #200. (CVS 798) (check-in: 1c58b4fc user: drh tags: trunk)
2002-12-04
22:29
Fix a bug in the reverse scan logic that comes up when the table being scanned is empty. Add additional tests for the reverse scan. (CVS 797) (check-in: 0051c87d user: drh tags: trunk)
21:50
Fixes to the logic that decides if the ORDER BY can be ignored due to the use of an index. Tests updated. (CVS 796) (check-in: bfb9a2aa user: drh tags: trunk)
20:01
Scan the table backwards if there is an ORDER BY ... DESC clause that can be satisfied by an index. (CVS 795) (check-in: c7a34879 user: drh tags: trunk)
13:40
Add the sqliteBtreePrevious() routine to the BTree module API. This is in anticipation of implementing reverse order searching of a table. (CVS 794) (check-in: 0ad1d938 user: drh tags: trunk)
2002-12-03
02:34
Allow an aggregate function in the HAVING clause even if no aggregates appear in the result set. Ticket #187. (CVS 793) (check-in: 33c6fd6b user: drh tags: trunk)