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Author SHA1 Message Date
drh
1d32488037 Performance enhancement for single-table queries with many OR-connected 
WHERE clause terms and multiple indexes with the same left-most columns.

FossilOrigin-Name: 1461d543ac8a3e4a54405067893146c74576bb4e
 2014-12-04 20:24:50 +00:00
drh
72673a24e2 If a table is the right operand of a LEFT JOIN, then any column of that 
table can be NULL even if that column as a NOT NULL constraint.
Fix for ticket [6f2222d550f5b0ee7ed].

FossilOrigin-Name: 6f6fcbe4736b9468a495c684d5eebc8bfe5c566a
 2014-12-04 16:27:17 +00:00
drh
d8922052b2 Clarification of the meaning of the second parameter to the busy-handler 
callback.  No changes to code.

FossilOrigin-Name: 1e2bc484f8e7766a493bfeab04d82e50f37217b8
 2014-12-04 15:02:03 +00:00
drh
063970a15f Fix comment typos reported on the mailing list. No changes to code. 
FossilOrigin-Name: 93a71c9f058b58d11187293a1e8d5324d0911880
 2014-12-04 14:01:39 +00:00
drh
a25165fa68 Add an implementation mark and fix a comment describing the OP_Checkpoint 
opcode.

FossilOrigin-Name: 7475b90c558157802b036162376fceacc1b9ab4a
 2014-12-04 04:50:59 +00:00
drh
dd90d7ee81 Add evidence marks and assert()s used as evidence for checkpoint requirements. 
FossilOrigin-Name: b2da8afc7657266fbe8e683c6e50fe18216cbcf3
 2014-12-03 19:25:41 +00:00
drh
86e166a778 Fix over-length comment lines in sqlite.h.in. No changes to code. 
FossilOrigin-Name: cbd357fd8c25c9c6043063710a3e2a89ff8b4575
 2014-12-03 19:08:00 +00:00
drh
bb9a378df3 Simplify the sqlite3_wal_checkpoint() documentation. Add some source code 
evidence marks.

FossilOrigin-Name: 026c44ff2c092b14faa19985dd46873aeb8727dc
 2014-12-03 18:32:47 +00:00
drh
5b875311a3 Futher tweaks to the sqlite3_wal_checkpoint_v2() documentation. 
FossilOrigin-Name: 7d284d047b0677fb4532df5aae06f5bad997f5e9
 2014-12-03 16:30:27 +00:00
drh
2d2e7bfeff Updates to the documentation for sqlite3_wal_checkpoint_v2() and related 
interfaces, including adding many requirements marks.

FossilOrigin-Name: 1e212d9899387344fd62c7b6fbcc59ea885b6d7c
 2014-12-03 15:50:09 +00:00
drh
2f89546001 Add support for SQLITE_CHECKPOINT_TRUNCATE. 
FossilOrigin-Name: edda2b9e7a15ed486de81b10dd9bacd39c571d3f
 2014-12-02 20:51:52 +00:00
dan
0fe8c1b967 When attempting to restart a wal file, make any required calls to sqlite3_randomness() before waiting on or checking for wal file readers. This restores the behaviour exhibited by the trunk. 
FossilOrigin-Name: 6ee08769f0ffbb3d620c66b89180ece7782dc820
 2014-12-02 19:35:09 +00:00
dan
f26a1549ac Add the SQLITE_CHECKPOINT_TRUNCATE option. 
FossilOrigin-Name: 8e20a43419e46b6b9d1f60ec7ea420bbfb3ef358
 2014-12-02 19:04:54 +00:00
drh
1fd2d7d471 Convert two unreachable branches into assert() statements. 
FossilOrigin-Name: 61b31e771430f490fc2c4cef55046debc4a5f4f5
 2014-12-02 16:16:47 +00:00
drh
9b5444af6c Work around overzealous NULL pointer checking in memcpy() and memset() for 
some systems.

FossilOrigin-Name: 0d04f380e1bd17104b3cf76b64d0cfc79a726606
 2014-12-02 13:46:53 +00:00
drh
ac5649a985 Remove the ill-designed "-end" option from the command-line shell. Instead, 
allow multiple SQL or dot-commands as command-line arguments.  Any -cmd
commands are processed first, followed by other command-line arguments, for
backwards compatibility.

FossilOrigin-Name: 24fa2e9832daaa5d68ee28a00c56c55f97a4da9e
 2014-11-28 13:35:03 +00:00
drh
cb7fe0ab9c Add the -end option to the command-line shell, which forces it to exit after 
reading prior command-line options (presumably including one or more -cmd
options) and without reading standard input.

FossilOrigin-Name: b59397b1f1e32c478b5fa96659cd4300177d39f7
 2014-11-28 11:54:44 +00:00
dan
d89b834f54 Fix a buffer overread during compilation of CREATE VIRTUAL TABLE statements that featured an explicit database name but no virtual table arguments. For example, "CREATE VIRTUAL TABLE main.ft USING fts4". 
FossilOrigin-Name: f095cde579e7417306e11b5c1d2dd90b6bb547d5
 2014-11-27 11:36:36 +00:00
drh
3f2d22e1a3 More test cases for the balancer. 
FossilOrigin-Name: 358ea818f7ea5aa55bafaf4057e9fc7a5fd77c11
 2014-11-27 04:23:19 +00:00
drh
5ab63775dd Fix a problem in the new b-tree balancer that was causing corruption of 
the fragmentation count.

FossilOrigin-Name: f242394e079dd185aad90f2aee902a5edf27e150
 2014-11-27 03:46:04 +00:00
dan
0a79238b39 Fix an integer overflow bug in vdbesort.c. 
FossilOrigin-Name: 623827192532f08b68bc0eb9ed1449e173361f0c
 2014-11-25 18:59:55 +00:00
drh
0da10d3289 Always reinitialized the Index.bUnordered and Index.noSkipscan flags before 
rereading the sqlite_stat1 table, even if SQLITE_ENABLE_STAT4 is defined.

FossilOrigin-Name: 1e1221fc4823a6bb6fc5d2408732e27aca585de9
 2014-11-22 21:37:00 +00:00
drh
ab4624d005 Fix an error in the comments from the previous check-in. 
FossilOrigin-Name: 9660ce541837ccd8df415641a922274e093056aa
 2014-11-22 19:52:10 +00:00
drh
7a1bca7e74 Deploy heuristics (well-commented) to better estimate how much unindexed terms 
in the WHERE clause filter the number of output rows from a single table.

FossilOrigin-Name: 221659945c3f78d3b6789bfe8fdeb8d3ee1fa038
 2014-11-22 18:50:44 +00:00
drh
a3898250d4 Remove a redundant test case (probably a copy/paste error). Add an assert() 
to where.c to ensure that automatic indexes do not have there output row 
counts adjusted downward by supplementary constraints.

FossilOrigin-Name: eea47933493c85a85247ad383bd148b06f627d04
 2014-11-22 12:22:13 +00:00
drh
643091f071 Fix a typo in a requirements mark on the abs() SQL function. 
FossilOrigin-Name: b1e6c02f8b9a2afaa12ac15a33e3f698c3be27d6
 2014-11-20 23:21:23 +00:00
drh
2d8233157d Fix a benign test error on PRAGMA collation_list 
introduced by a recent checkin.

FossilOrigin-Name: 332cc9591d05508ac9cb56fde2b82e20e0342d1f
 2014-11-20 23:11:30 +00:00
drh
341eca7f68 Updates to requirements tags on the mutex documentation. 
FossilOrigin-Name: fcf8b7e4c6c3893e2004a28dc9f0f677907b4ba9
 2014-11-20 23:03:42 +00:00
drh
5e3b49bc42 Add requirements marks on the built-in collating functions. 
FossilOrigin-Name: 4b608b62ac8d4eafdb76192b3b5db272332a4bfd
 2014-11-20 19:22:26 +00:00
drh
fdab02635c Ensure that when the number of cells on a page drops to zero that the freelist 
and fragment counter are both cleared.  Also add evidence marks corresponding
to file-format documentation.

FossilOrigin-Name: ef9fbc08b0a047042deeb2d6007d67028fefb9e2
 2014-11-20 15:30:50 +00:00
drh
1b40e63f9b Fix the encoding of some integers to use the minimum amount of space: 
-128, -32768, -8388608, -217483648, and -140737488355328.

FossilOrigin-Name: 2d7c8da5f16e64eaa7b0c2d66898682ea3d102a0
 2014-11-20 02:58:10 +00:00
drh
654858d7f4 Add some requirements marks to the record formatting logic. Comment changes 
only - the code is unaltered.

FossilOrigin-Name: 9a9627e178a67bbfc85366aaea900e674d22fb53
 2014-11-20 02:18:14 +00:00
drh
113762a284 Add new requirements marks associated with the file format documentation. 
No changes to code.

FossilOrigin-Name: 6d00bcca6ed1903fb17275752cab71c14392355b
 2014-11-19 16:36:25 +00:00
drh
42a7b4bac9 Completely remove an assert() that had previously been commented out. 
FossilOrigin-Name: 89b3c1c4555c98c633089b21cdd2a1a3a1e751eb
 2014-11-19 14:31:12 +00:00
drh
664f85dd59 Add an ALWAYS on an always-true branch in wal.c. 
Fix the ANALYZE command so that it resets the "unordered" and "noskipscan"
flags on indices when reloading the sqlite_stat1 table.

FossilOrigin-Name: 9ed97a85feee6593faefa2b54cc4cf9a60f515f9
 2014-11-19 14:05:41 +00:00
drh
fead4ed8f3 Adding the "noskipscan" token to an sqlite_stat1.stat field prevents 
an index for being used with the skip-scan algorithm.

FossilOrigin-Name: 4461bf045d8eecf98478035efcdba3f41c709bc5
 2014-11-18 21:54:31 +00:00
drh
36ff0bf684 Allow an automatic index to be used if the only uses of declared indexes for 
the same loop use the skip-scan algorithm.

FossilOrigin-Name: c52f7971e90cac1058d6b66c9e334cbc8607def3
 2014-11-18 21:45:35 +00:00
drh
64b600ff13 Merge in all the other ROLLBACK fixes from the branch-3.8.7 branch. 
I don't know why I was doing them one-by-one.

FossilOrigin-Name: 296b0c7397790ceadbdb330959e962f6491abc3e
 2014-11-18 20:49:30 +00:00
drh
bea3b976a9 Fix a bug in the sqlite3TripAllCursors() routine that prevents it from 
reporting errors.  It is unknown at this time whether or not this omission can
result in any incorrect result in an actual query.

FossilOrigin-Name: 2896f2640ab3e102ee248d20fb68c497817524eb
 2014-11-18 20:22:05 +00:00
drh
58f95c43ad Update a couple of test cases to account for the fact that ROLLBACK does not always abort all running SELECT statements. 
FossilOrigin-Name: abccda769a3f6b755c3bf70b5fb31a5e16718ef3
 2014-11-18 20:16:27 +00:00
drh
bb8f925294 Increment the version number to 3.8.7.2 
FossilOrigin-Name: 945a9e687fdfee5f7103d85d131024e85d594ac3
 2014-11-18 12:28:52 +00:00
drh
4429c20b86 Add an ALWAYS() to an always-true conditional in the WAL rollback logic. 
FossilOrigin-Name: c5eae8a60d474131fbfa4d0c2b459005267e8be4
 2014-11-18 02:44:32 +00:00
drh
c5352b996a Remove code from sqlite3BtreeKeySize() made unreachable by the previous 
check-in.

FossilOrigin-Name: 57c4aa988c8eda3cc513c1e5df5804d88bee99a0
 2014-11-17 20:33:07 +00:00
dan
756d3b3e9d Avoid calling sqlite3BtreeKeysize() on a b-tree cursor in SKIPNEXT or SKIPPREV state. 
FossilOrigin-Name: 2f2ecb994889acb783616acb7307f8fed962d213
 2014-11-17 19:44:44 +00:00
dan
2b8669a9da Avoid calling sqlite3BtreeKeysize() on a b-tree cursor in SKIPNEXT or SKIPPREV state. 
FossilOrigin-Name: 54e7d3fcb1ab21c03ffef1af93ae029a2901098a
 2014-11-17 19:42:48 +00:00
drh
d816e00d13 Improved comments on the BtCursor.skipNext field. No changes to code. 
FossilOrigin-Name: e956e7db057d1112badf5e0671cea95201385b44
 2014-11-17 19:25:15 +00:00
drh
77b1deec40 When a SELECT statement is terminated by a ROLLBACK TO operation, make the 
error message be "abort due to ROLLBACK" rather than 
"callback requested query abort".

FossilOrigin-Name: 34fc4a082c192830e48f643549c04a4f91912b8b
 2014-11-17 17:13:06 +00:00
drh
13835c41e8 Fix a bug in the sqlite3TripAllCursors() routine that prevents it from 
reporting errors.  It is unknown at this time whether or not this omission can
result in any incorrect result in an actual query.

FossilOrigin-Name: 42588207ff5451cb785c394633e1ab631fb82f01
 2014-11-17 15:32:47 +00:00
dan
302f583aa4 Update a couple of test cases to account for the fact that ROLLBACK does not always abort all running SELECT statements. 
FossilOrigin-Name: eba171e980fa4491dfee9d7e4df50c87a0ebbf87
 2014-11-17 15:22:08 +00:00
drh
f9df2fbdcd Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an 
index for being used with the skip-scan algorithm.

FossilOrigin-Name: 00fe09505792cd0d104b2da9d040f023e30fa871
 2014-11-15 19:08:13 +00:00