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27 check-ins using file src/select.c version 35225756

2009-04-22
17:15
Eliminate the OP_VRowid opcode. The regular OP_Rowid now work for both regular and virtual tables. (CVS 6537) check-in: ecbef450 user: drh tags: trunk
15:32
Change the OP_Rowid opcode so that a deferred OP_Seek is pending, it simply pulls the rowid from the deferred seek target and does not actually move the cursor or do a seek. Other where.c cleanups. (CVS 6536) check-in: 1c508a99 user: drh tags: trunk
02:15
Remove the rowhash object from the code. Rowset now fills its role. (CVS 6535) check-in: e963bed0 user: drh tags: trunk
00:47
Extend the Rowset object to contain all the capabilities of Rowhash in addition to its legacy capabilities. Use Rowset to replace Rowhash. In addition to requiring less code, This removes the 2^32 result row limitation, uses less memory, and gives better bounds on worst-case performance. The Rowhash implementation has yet to be removed. (CVS 6534) check-in: b101cf70 user: drh tags: trunk
2009-04-21
18:20
Move RowHashBlock.nUsed to RowHash.nUsed. Fix a typo in a comment in test_async.c. (CVS 6533) check-in: 799d31d9 user: danielk1977 tags: trunk
17:23
Fix a segfault that followed a malloc failure introduced by (6527). (CVS 6532) check-in: 08e71b11 user: danielk1977 tags: trunk
17:13
Adjust the rowhash.test module so that it recovers gracefully in the rare event of a rowid collision. (CVS 6531) check-in: 72e16809 user: drh tags: trunk
16:15
Allocate the initial RowHash object using lookaside. (CVS 6530) check-in: 9b30ab71 user: drh tags: trunk
15:05
New comments and minor refactoring of rowhash.c. (CVS 6529) check-in: b8cb4f3e user: drh tags: trunk
12:02
Remove a redundant test from sqlite3_shutdown(). (CVS 6528) check-in: 6f481ceb user: drh tags: trunk
09:02
Attempt to optimize virtual table queries with 'OR' expressions in the WHERE clause. (CVS 6527) check-in: f61e4cd9 user: danielk1977 tags: trunk
2009-04-20
17:43
Change the journal_mode pragma so that it always returns the current journal mode, even on a failed attempt to change the journal mode. Allow the journal mode to be changed as long as there is not a pending transaction. Ticket #3811. (CVS 6526) check-in: 419e320a user: drh tags: trunk
13:32
Add new tests to show that journal_mode=OFF works with locking_mode=EXCLUSIVE as long as the journal_mode is set prior to the first transaction. Ticket #3811. (CVS 6525) check-in: e62ac26f user: drh tags: trunk
12:31
Clarify the documentation to make it clear that sqlite3_interrupt() does not effect new SQL statements that are started after the running statement count reaches zero. Ticket #3815. (CVS 6524) check-in: 3182e8bf user: drh tags: trunk
12:07
Do not use deprecated interfaces internally when compiling with SQLITE_OMIT_DEPRECATED. Ticket #3813. (CVS 6523) check-in: 7f17956d user: drh tags: trunk
11:34
Speed improvements by avoiding unnecessary calls to fstat() and ftruncate(). (CVS 6522) check-in: 5b7e3a41 user: drh tags: trunk
2009-04-19
20:51
Update comments and remove unused code in btree.c. No functional changes. (CVS 6521) check-in: bd860184 user: drh tags: trunk
12:23
Make extra calls to sqlite3_shutdown() be harmless no-ops. (CVS 6520) check-in: d8082295 user: drh tags: trunk
2009-04-17
16:54
Revise the implementation of sqlite3_initialize() slightly in order to make it more easily testable. The functionality should be unchanged. (CVS 6519) check-in: bb1a390a user: drh tags: trunk
15:18
Get the behavior of SQLITE_HAVE_ISNAN right. It was reversed in check-in (6517). Ticket #3809. (CVS 6518) check-in: 97c6ea23 user: drh tags: trunk
11:57
Add the SQLITE_HAVE_ISNAN compile-time option which, if present, causes SQLite to use the math library isnan() function rather than its own homebrew implementation of isnan(). (CVS 6517) check-in: 54d23521 user: drh tags: trunk
11:56
Check-in (6514) did not completely remove the obsolete test, resulting in a segfault. This check-in finishes the job. Ticket #3802. (CVS 6516) check-in: c29b37ea user: drh tags: trunk
2009-04-16
17:45
Add NEVER and ALWAYS tags to conditionals in analyze.c that always false or true. (CVS 6515) check-in: fbbc80ea user: drh tags: trunk
16:32
Remove obsolete test from bindxfer.tcl. Ticket #3802. (CVS 6514) check-in: b1b09617 user: drh tags: trunk
16:30
Changes to alter.c to enable full branch coverage testing. (CVS 6513) check-in: 6a91ab08 user: drh tags: trunk
12:58
Make sure the 'unixepoch' converter in the date and time functions rounds to the nearest millisecond rather than truncating downward to the next smaller millisecond. Ticket #3808. (CVS 6512) check-in: e6e036b3 user: drh tags: trunk
00:24
In a 3-fold compound SELECT make sure early code generation of the SELECTs to the right do not dereference non-existant columns in SELECTs on the left. (CVS 6511) check-in: 414f3408 user: drh tags: trunk