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19,138 Commits 1,608 Branches 185 Tags
98b677f2cb15b1dff79920237b9961d7b5c05a5a
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13138 Commits

Author SHA1 Message Date
drh
d981e8289a Clean up the comments on the query flattener to more clearly and accurately 
express the conditions under which the flattener is able to run.

FossilOrigin-Name: 0840f9f824c16212ce3fd6c859e501176eb0a58924ea1728a54d5bdfd0c25c86
 2017-09-29 16:07:56 +00:00
drh
129c398d4b Merge changes from trunk. 
FossilOrigin-Name: 06f432fb7c979f1bb7f01f5c90716ce5c0248f73f70b78a9870b9de5c9bf7ef4
 2017-09-29 14:31:16 +00:00
drh
824d21aff3 Make sure the 6th parameter to the authorizer callback for view subqueries 
has the correct view name.

FossilOrigin-Name: 2a45bbc9fd1c64f1c4c4dac38f063cd67480fcb6da24bf93fdefbfca66fd81ab
 2017-09-29 12:44:52 +00:00
drh
23768298d2 Better names for subqueries in EXPLAIN comments. 
FossilOrigin-Name: 04ef40a8fea88776e0d8b73d942922d45d0c038fbfac1a9a82b9322181b4ad92
 2017-09-29 12:12:52 +00:00
drh
648fe49f96 Do not flatten subqueries that contain an ORDER BY or GROUP BY clause and 
can be implemented using a co-routine.

FossilOrigin-Name: 042d655dd9002e8b89a798ad955b0285891aecf79f6978c5312e70ffe0609a46
 2017-09-28 20:06:53 +00:00
drh
2e9d706252 Remove the (undocumented) query-planner control that prevents 
a "SELECT ALL" subquery in FROM clause from being implemented as a co-routine.

FossilOrigin-Name: ff2f5a31a2ac67a2fdbb25793e8013cb0e062ab90bdcba2d52a62d6d4d8b6d18
 2017-09-28 17:29:24 +00:00
drh
3d240d2119 Fix over-length source code lines in select.c. No logic changes. 
FossilOrigin-Name: fd3267ef92384fcefaee7460a5ffbaf8ddcb6049eec36f72a7046a43e2871fbf
 2017-09-28 16:56:55 +00:00
drh
4e6cec1ca0 Fix an issue introduced by check-in [4cd2a9672c59] (2017-03-03) that could 
allow a negative value in the 3rd parameter to memmove() when
defragmentPage() is called on a btree page with a corrupted
freeblock list.  The corruption is now detected early and results in
an SQLITE_CORRUPT return before the memmove() is reached.

FossilOrigin-Name: 5b9ae693120fe4f7bc3b6270f35d773876f6cc8f5990e05cce0d255c54b36ae7
 2017-09-28 13:47:35 +00:00
drh
70efa84da7 Add new routines to simplify dealing with collating sequences in expressions: 
sqlite3ExprNNCollSeq() and sqlite3ExprCollSeqMatch().

FossilOrigin-Name: 490e488ea963fe725b16212822c8608f2b6abce688931b611446bc2cbfe6b87c
 2017-09-28 01:58:23 +00:00
drh
db8e68b4cd Indexes on expressions with a COLLATE clause are able to satisfy an ORDER BY 
with the same COLLATE clause.

FossilOrigin-Name: 0413001843dce7c63659d39b329ca14cdcd54f4407922f51b2fb7659572a733e
 2017-09-28 01:09:42 +00:00
drh
488e619192 In two places, change the magic number -1 to its proper symbol XN_ROWID. 
FossilOrigin-Name: 80277d2fc9b76fe41e345d00952da1528e69884f25911cf6e4f78b09ff778421
 2017-09-28 00:01:36 +00:00
dan
21f2bafd9b Experimental change so that snapshot transactions always lock the wal file - 
preventing writers or truncate-checkpointers from wrapping it.

FossilOrigin-Name: d71eeaab9ecdeed772047498b781be1f0be0655af284b94cf676bb408ceea8b1
 2017-09-23 07:46:54 +00:00
mistachkin
3314062b9d Use the updated Win32 VFS semantics for winOpen from check-in [5d03c738e9] for WinRT, et al, as well. 
FossilOrigin-Name: 2c03d8b8f028b6a736aaf2cf8b28a51b3434cf341c95cf3a80469e0a24acdd98
 2017-09-22 16:23:23 +00:00
drh
24ddadfa3b Partial backout of check-in [e0af9a904076]. It turns out we do need some 
extra space at the end of the record blob as an overrun area to use when
decoding a maliciously malformed record.

FossilOrigin-Name: 403b88a894d877b85bcc33133abad06c3c576e4928de4a4b0c091f74c4015355
 2017-09-22 12:52:31 +00:00
drh
0e97e9a4c2 In the Windows VFS, when trying to open a database file read/write, if it 
fails check to see if the file exists and is read-only and immediately fall
back to a read-only open attempt, rather than running the AV retry loop.

FossilOrigin-Name: 5d03c738e93d36815248991d9ed3d62297ba1bb966e602e7874410076c144f43
 2017-09-21 20:43:48 +00:00
drh
b40d9eea50 In the Windows VFS, do not emit an SQLITE_CANTOPEN error log message when 
falling back from SQLITE_OPEN_READWRITE to SQLITE_OPEN_READONLY.  Wait until
the open fails completely.

FossilOrigin-Name: fa3f5bcc23d9342f6df8ea15732988d637e9fa5dade85a73b05a9f66136d6964
 2017-09-21 20:03:17 +00:00
drh
c07df4c3b9 Revert one performance improvement changes from check-in [3b3e32d4cd07] as 
it was causing a reference to an uninitialized value.

FossilOrigin-Name: f8b1c64d3eeb8413ca149f34cc00f9154a5446d06ad33bbffa69118e6110f81d
 2017-09-21 01:04:30 +00:00
drh
b5c1063ab7 Fix the rendering of the P4_INTARRAY argument to the OP_IntegrityCk opcode 
in the output of EXPLAIN.

FossilOrigin-Name: adc12c83dda8ba93ca220bbff649f763058b9440968ae463621f0cb7de8889cf
 2017-09-21 00:49:15 +00:00
drh
762dffa54a Size and performance optimization on sqlite3VdbeMemGrow(). 
FossilOrigin-Name: 4b3f7eacb862fbb5b75cf50b72fb60dfbd0acb5818e9f83383a6a63c8bbeacdf
 2017-09-20 18:47:51 +00:00
drh
63d1632f1e The BLOB returned by sqlite3VdbeMemFromBtree() does not need to be 
zero-terminated.

FossilOrigin-Name: e0af9a9040768adf8bba42a8780adeb6304bc442afb1f35d239d019db1624f40
 2017-09-20 18:07:50 +00:00
drh
97397a70e4 Small size and performance optimization in the bytecode engine. 
FossilOrigin-Name: 3b3e32d4cd07a1d2d1708fffa47819345ae6b39205a9f548280d499c8f481d64
 2017-09-20 17:49:12 +00:00
drh
84d4f1a328 Improved resolution of large integer values in "CAST(x AS NUMERIC)". 
FossilOrigin-Name: 7f2bd4ff45fba29528c18cac6da983bd9b164303525d3965056f5b40f85dc83f
 2017-09-20 10:47:10 +00:00
drh
cf51255c44 Add the sqlite3_mmap_warm() function as an extension in the ext/misc/mmapwarm.c source file. 
FossilOrigin-Name: 1b2de41453ac33de82f9cd6cbb92eee4fe184fb282c27e5efa5243c8cb239630
 2017-09-18 18:17:01 +00:00
dan
460f1fa55c Add extension "mmapwarm.c". Provides function sqlite3_mmap_warm(), used to 
"warm up" the memory mapping used by SQLite in mmap mode to access db file
content.

FossilOrigin-Name: d4a30b91f9aad93510baead8c04ee51b82c98763be5a224ed4873298214c963a
 2017-09-18 16:28:56 +00:00
drh
63347e7df8 Minor simplification of error message generation during compound query 
code generation.

FossilOrigin-Name: a944719314e0ac2f1954b65668815769eba3ab3e39a74666293b8dea52a184b2
 2017-09-18 13:16:10 +00:00
drh
edea4a7cc9 The out-of-bounds read on recovery fix of check-in [378afa16381a222a] caused 
problems for some corner-case error conditions.  This alternative fix appears
to work better.

FossilOrigin-Name: 74f399d81fe250e09fde730ac0c17fe8b2b776ed32a3f576adaad56090f2b7fa
 2017-09-18 09:40:46 +00:00
drh
97258194a2 Do not make the assumption (as check-in [4da49a95c0f07] incorrectly did) that 
the ExprList returned by sqlite3ExprListDup() would never be passed into
sqlite3ExprListAppend().  Include a new test case that shows this sometimes
does happen.

FossilOrigin-Name: 29227d00a9999f0f28a0b55ef70183799a667c3b9d81d2e5ac0ab1840bef98b1
 2017-09-17 19:45:28 +00:00
drh
559656196b Simplify the sqlite3VdbeGet() routine. Smaller, faster, and easier to maintain. 
FossilOrigin-Name: 5dbb255a9377a6c2619fbac519f18caa4d8cb23257dfba0ffb9e36dd9dc16627
 2017-09-16 20:58:41 +00:00
drh
2def2f7e0a Remove an unnecessary parameter from selectInnerLoop(). 
FossilOrigin-Name: dd95887f82739d05585edfb70913fdaaab154de46c4d3113dd32d283767fb6fc
 2017-09-15 17:40:34 +00:00
drh
3df6c3b1c5 Improved the header-comment documentation on sqlite3ExprCodeExprList(). 
No changes to code.

FossilOrigin-Name: 5dc3ecb5f67968545fb35ceed61ad625e069c4e744c5c3ebaea65e2fee347a5f
 2017-09-15 15:38:01 +00:00
drh
a19543fe70 Optimization to the ExprList object to make it slightly smaller and faster. 
FossilOrigin-Name: 4da49a95c0f07ed7790169e8833c3e2dacda504a3d997f567572020148abe30b
 2017-09-15 15:17:48 +00:00
drh
154896e8d2 Fix a harmless comment typo. No changes to code. 
FossilOrigin-Name: f7f0bf1da03f7fc1647ef172d9cb71a2ac46f136d4dee8e3a24e39313a981eb5
 2017-09-15 14:36:13 +00:00
dan
3ed0f1c936 Add another test case for the problem fixed by the previous commit. 
FossilOrigin-Name: 1a7e0b61c8a6bdd3ed105b9bc8a3732668fd7a897d2ed16c99445498e3c87089
 2017-09-14 21:12:07 +00:00
dan
629ec14abc Avoid an out-of-bounds read that can be caused by a specially constructed 
journal file.

FossilOrigin-Name: cf5bf42cad6e019a38dc0a36ff1f53ada619eef5259e175c3554a16669e03202
 2017-09-14 20:41:17 +00:00
drh
263a8b660f Avoid an out-of-bounds read on a recovery attempt using a carefully crafted 
database and rollback journal with mismatched page sizes.  The test case for
this is in TH3.

FossilOrigin-Name: 378afa16381a222aafa6009dbbbc92473a69683537f1c265694678b0595a42c8
 2017-09-14 02:36:27 +00:00
drh
d33bcb8a3c Improvements to PRAGMA integrity_check for better detection of malformed 
records.  Integrity_check now avoids returning SQLITE_CORRUPT on a corrupt
record.  Also includes microoptimizations that I stumbled over while working
on integrity_check.

FossilOrigin-Name: 8525c30c1d6676e51b9d9c642450aae3722c129edafdbc39b8435fcfe09b1817
 2017-09-13 00:33:36 +00:00
drh
74588ceb31 PRAGMA integrity_check returns SQLITE_OK even if it encounters corruption 
while scanning indexes.

FossilOrigin-Name: 81f62e99f27dedf3dc10fa1593c4cd9fc158680867206aee853e503a0cc8df71
 2017-09-13 00:13:05 +00:00
mistachkin
bf60baa985 Remove use of the rand_s() function (added by [139081bef9f63c3e]) as it appears to cause issues with some third-party DLLs. 
FossilOrigin-Name: 3a2793aa65727cbbf8c4678d478cf8fb02350f19ff98201934a984727368d64d
 2017-09-12 23:58:47 +00:00
drh
3ba18adde5 Fix an error in [b22cdd67] that can cause a negative infinity to be (rarely) 
reported as a positive infinity.

FossilOrigin-Name: 9780b23ca375de6a542516fbc03eb39d5a393ca577718fda231d0d0ccf3b1c7e
 2017-09-12 15:05:34 +00:00
drh
b9772e7fe8 Changes to (hopefully) get the build working with recent Intel compilers. 
FossilOrigin-Name: b22cdd6734ecda2b2b9749668f353abc2660f192d6a40c5d266309d30e25695e
 2017-09-12 13:27:43 +00:00
drh
303a69b5ad Refactor names of constants and functions associated with the auxiliary 
operators for xBestIndex.

FossilOrigin-Name: 0fb992af669e765760a94d2b6e2330b21a98f39f18445a94b0a2290560368d58
 2017-09-11 19:47:37 +00:00
drh
33892c11a7 Minor adjustments to indentation and spacing for clarity. No changes to code. 
FossilOrigin-Name: d3153abda6fd48015b007081734738b9cc4622e3564dc78a7a470a72dc2ca236
 2017-09-11 18:37:44 +00:00
drh
9ecd7086c1 Simplifications to the PRAGMA integrity_check code generator. 
FossilOrigin-Name: 99b9140c795c0c17c4e9d2547477c9dac056edfd443f2b2bd70edecd43c49ab7
 2017-09-10 01:06:05 +00:00
drh
c2c6fd18dd Simplification and performance improvement to sqlite3_reset(). 
FossilOrigin-Name: b6425d0170721d803a055a958f1823c9c4be925cd93ac47562ff723daf8ce2ed
 2017-09-09 22:46:56 +00:00
drh
226cef4ef1 Improved detection of malformed records by PRAGMA integrity_check. 
FossilOrigin-Name: 8fa923caa1535fc9ebed0214d211fc3d09a015d78afd01f288c215a7980d25f2
 2017-09-09 20:38:49 +00:00
dan
d03024d814 Enhance the vtab interface to handle IS, !=, IS NOT, IS NULL and IS NOT NULL 
constraints.

FossilOrigin-Name: 34c8e952616013deb6fffec701ac5989afac9bef1bf92458a2e4ba92c7ee924f
 2017-09-09 19:41:12 +00:00
mistachkin
2158a0c7ac Fix harmless compiler warnings seen with MSVC. 
FossilOrigin-Name: faa22e29a5a05a16d46a428d838acedfa7d6fad6239495d59a6a1f4764e1b1b6
 2017-09-09 00:51:36 +00:00
dan
7834551c1e Have the header comment for sqlite3Checkpoint() mention TRUNCATE along with 
the other three checkpoint types. No changes to code.

FossilOrigin-Name: e1e3ca7ea43a68b9b57dc38d8855f63b63a53feb8128b666a1becf87a2c70341
 2017-09-08 17:48:00 +00:00
drh
05f1ba0ef8 Prevent a possible crash when trying to recover using a carefully corrupted \ 
and truncated rollback journal.  (Test case in TH3)

FossilOrigin-Name: 02828d717e2d97b1f59e9279cea9c06eed4accd4e262606bd90d060449c5a1a3
 2017-09-07 09:56:37 +00:00
dan
3841372350 Update "PRAGMA integrity_check" to detect inconsistencies between a single 
record's header and body.

FossilOrigin-Name: 9e393a0edf1a578ddecc16a72fe3c54b75c2a650d507bcbc37c9724fbede1494
 2017-09-05 20:16:19 +00:00