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Author SHA1 Message Date
drh
e2bc6552fe Do not allow a Mem object to be both NULL and some other type at the same time. 
FossilOrigin-Name: e698db1956bb3aba32cd3ec633ec20f5d19b1a10bc68d3772903bca3c87ee158
 2017-04-17 20:50:34 +00:00
dan
4bee5599c0 Consolidate two branches of code in the "PRAGMA foreign_key_check" 
implementation.

FossilOrigin-Name: 69f51f838abcf57b35e41f7a10fbb45f56536f93825aac865debc3c8315930be
 2017-04-17 18:42:33 +00:00
dan
940464b1dc Fix a problem in "PRAGMA foreign_key_check" in handling a WITHOUT ROWID child 
table with an INTEGER PRIMARY KEY parent key. Also, if an FK violation is
detected in a WITHOUT ROWID child table, do not try to read and return the
rowid. The third column returned by "PRAGMA foreign_key_check" in this case
(WITHOUT ROWID child table) is now always set to NULL.

FossilOrigin-Name: 690870bd7b2e607b7992c4496c9f08c29eb72a36af002c606fd7aa3dcf94a2a4
 2017-04-17 18:02:41 +00:00
dan
624edacf6a Further improvements to test coverage in fts3. 
FossilOrigin-Name: 352413eed469802665e7d2c17b7fe6e3a0b0b2209ce45bdc85fd4243cec50ea6
 2017-04-17 16:07:25 +00:00
dan
ddf4747053 Improve coverage of code in fts3. 
FossilOrigin-Name: 1a08a836fa919524216a16faf5212eebc9ad788c9e15463b68b0576dfccd4387
 2017-04-17 13:38:09 +00:00
drh
6887e8facd Fix the ".column" output mode in the command-line shell so that it correctly 
counts and formats multi-byte UTF characters.

FossilOrigin-Name: f508aff8d1782abdff4d03726ae098607a0ee6cfd2e35b130097ee5043e98960
 2017-04-17 13:18:42 +00:00
drh
b6d5a43b8a In the showwal command-line tool, for unix builds, if the 
auxiliary argument is of
the form "Ntruncate" where "N" is a frame number, then truncate the WAL
file after the N-th frame.

FossilOrigin-Name: 90015df30655d884ecf7ae61e588824696954252dc6b1a5f78cf2de8cb236104
 2017-04-16 22:41:49 +00:00
drh
b65b3e429a Add the anycollseq.c loadable extension in etc/misc 
FossilOrigin-Name: d7b9813cb17615c3d00afd6994a4309d6d48c8e924b6cd813c543e1fa65c7719
 2017-04-16 22:08:31 +00:00
drh
147fd88268 In the skip-ahead-distinct optimization, fix a bug in the logic that determines 
when to invoke the optimization based on sqlite_stat1 statistics.

FossilOrigin-Name: 89f9e4363aa19f306e55f749c442eae2f8994f6a47c65e645a79b308b450d5e5
 2017-04-15 11:53:47 +00:00
drh
a2e2d92b21 Fix to the decision logic for when to use the skip-ahead-distinct optimization. 
FossilOrigin-Name: e50fd48969f99bc988389c53ff46714603b1d11de12c71b55c00cbee037f073c
 2017-04-14 22:41:27 +00:00
drh
06f60d8e87 Remove end-of-line whitespace from lemon.c. 
FossilOrigin-Name: d78355c85f49e139f1ac1a660563865350f0e442652b7bc50b684398f81cc602
 2017-04-14 19:46:12 +00:00
drh
14d8855b8f Fix some left-over K&R-C constructs in lemon.c. No changes to the core. 
FossilOrigin-Name: a53799059d4ece246610b6c877ab7088ded3548cbca7149a03deea8ac0e27e68
 2017-04-14 19:44:15 +00:00
drh
1a17b44231 When doing a DISTINCT query using an index, try to use the index to skip ahead 
to the next distinct element, rather than doing a full scan of the index.
(This is the "skip-ahead-distinct" optimization.)

FossilOrigin-Name: f489b5bb6b35665befdd411c2c55df5258e83cba265d8c4427ba22529cf882a4
 2017-04-14 17:30:43 +00:00
mistachkin
b1ed717f18 Make USE_FULLWARN=1 the default for MSVC and fix harmless compiler warnings. 
FossilOrigin-Name: 6bf673767b8e5cedef1acff795cbe524fab8db2525c06424db4e038934a33936
 2017-04-14 14:50:34 +00:00
drh
d97cda43ab Enhance the sqlite3TreeView() display for Expr objects so that it shows 
the iRightJoinTable value for Expr nodes that have the EP_FromJoin property.

FossilOrigin-Name: 5159cb8f2bcfb1f7114786ba23082d2b91a26e3a7ddfae75f8bd362792949d5e
 2017-04-14 14:02:14 +00:00
drh
46967de2ec Simplify the interface to the subst() routines that are part of the 
query flattener by collecting common parameters into the SubstContext object
and passing around a pointer to that object.

FossilOrigin-Name: e651074be28b2077b8a298f513e2e699ceca99164ace9869ea50873c0637fd2e
 2017-04-14 12:39:37 +00:00
drh
7c88bcd473 Remove an incorrect ALWAYS(). 
FossilOrigin-Name: f956f6ae6b0863c70c4a2b227338d5c332e87f2ec6f3fcdf2233c14c5b78ca2b
 2017-04-14 12:27:45 +00:00
drh
571311502d Fix a couple of unreachable branches. 
FossilOrigin-Name: 1aa0ea8db7580aff8bed2f78117ed50019e5545cef48cab782f512a2599fd0c5
 2017-04-14 00:45:51 +00:00
drh
172806e489 Fix the skip-ahead-distinct optimization so that it works with indexes that 
have repeated columns with different collating sequences.

FossilOrigin-Name: ce1e2b88777e00a82c04abe5ba35eec81b5f324e462f099cd00b21054f369688
 2017-04-13 21:29:02 +00:00
drh
c04ea80f64 Simplification of the skip-ahead-distinct logic. There is still an issue 
with handling COLLATE.

FossilOrigin-Name: 57c5173b6376a76013b0611ce9770100bd8c04e80402e35d821d8614709f4795
 2017-04-13 19:48:29 +00:00
dan
a74f5c2923 New test cases and minor fixes for the optimization on this branch. 
FossilOrigin-Name: 70ac9ea1a6cb2f4906f00f1a04f668e5ba5eeed8d4d0fa4be57a9c9eb0683697
 2017-04-13 18:33:33 +00:00
dan
d0a537100c Reinstate the SQLITE_API qualifier on the sqlite3_delete_database() method in 
test_delete.c. Accidentally removed by the previous commit.

FossilOrigin-Name: 59c70108fd179932ccdd860f93e1cd68b77476d3b1af1af00cf6e378c9984862
 2017-04-13 15:51:27 +00:00
dan
44ae27ac32 Update the code in test_delete.c to use the "win32" VFS if SQLITE_OS_WIN is 
defined.

FossilOrigin-Name: fa9bb7b768027677f7e7d5a196ba5b245dfc8d8986ccd101c8dab671bd15719d
 2017-04-13 15:36:47 +00:00
drh
839fa6d814 Only use the skip-ahead-distinct optimization if the index has been analyzed 
and we know that a skip-head is likely to skip over at least 11 rows.  The
magic number 11 was determined by experimentation.

FossilOrigin-Name: 0cf16decd534bf2d66620c293f8c8987f356305f2d97f8fd12d260bda1571385
 2017-04-13 13:01:59 +00:00
dan
929b695111 Allow a user column name to be used on the LHS of a MATCH operator in FTS5. 
FossilOrigin-Name: 6f54ffd151b0eca6f9ef57ac54802584a839cfc7373f10c100fc18c855edcc0a
 2017-04-13 09:45:21 +00:00
drh
8489bf5aff Forward port the skip-ahead-distinct branch which was abandoned for some reason 
that I do not recall.  This port should have been achived by a merge of trunk
into the previous head of skip-ahead-distinct, but that did not work.  So I had
to manually "rebase" the changes.

FossilOrigin-Name: 132339a1fb0b9664df4d3eefbed6e77ef100ba95a91dcc622da7bd3fcdfcd6af
 2017-04-13 01:19:30 +00:00
drh
8671538cad Fix a regression caused by the fix for ticket [6c9b5514077fed34551f98e64c09a1] - 
control characters allowed in JSON.

FossilOrigin-Name: 8e7b611863247a3bf46a96ec4b47d24c0ae0d60c9cee968a1cfd1da157e7c9bb
 2017-04-13 00:12:32 +00:00
dan
03155f659f Update fts5 to support "<colset> : ( <expr> )" for column filtering, as well 
as "<colset> : NEAR(...)" and "<colset> : <phrase>".

FossilOrigin-Name: c847543f8bb1376fef52bca72b4191162a32eb7e6c5f0cd1aa0ab116b3183396
 2017-04-12 17:50:12 +00:00
drh
26849e14c2 Improved \n and \r escapes in the ext/misc/dbdump.c utility function. The 
implementation of dbdump.c now matches the implementation in the CLI.

FossilOrigin-Name: f2643315bb41a71eebd79f5d671f9163187e299a52ff8a481186f1e8fa7e5262
 2017-04-12 17:38:24 +00:00
dan
15e0f3d901 Avoid updating unaffected indexes on a table as part of an UPDATE that 
requires foreign key processing in some cases.

FossilOrigin-Name: 7aae5c0f99aa2fda85654242cfc9e23a0f981d9ce4ab17610d619cd208540b3d
 2017-04-11 20:48:30 +00:00
dan
940b5eaa5e Avoid updating unaffected indexes on a table as part of an UPDATE that requires 
foreign key processing in some cases.

FossilOrigin-Name: 477bea9ed0dd0fa69896bfd16d9b1d22170cbab784e3279ce65c29c47e032f34
 2017-04-11 19:58:55 +00:00
drh
ff6d50e973 Limit the depth of recursion for valid JSON in the JSON1 extension in order 
to avoid using excess stack space in the recursive descent parser.
Fix for ticket [981329adeef51011052667a9].

FossilOrigin-Name: 1f68c184596912d742b50b1ca38252a9e783aacf121619a27b17a7ae9f6df041
 2017-04-11 18:55:05 +00:00
drh
e97c9ff49a Smaller and faster implementation of exprMightBeIndexed(). 
FossilOrigin-Name: 76cd611d41465fcec61c21520d55172cb236530f38386b7d4a5544ba87de2353
 2017-04-11 18:06:48 +00:00
drh
ef90a6b8dd Very slight smaller and faster sqlite3SelectNew() 
FossilOrigin-Name: 4143650c4ce32289d2301cdfc69bb10877246420f656bed122886f6803fc956a
 2017-04-11 16:44:39 +00:00
drh
cbae543a5c Add an ALWAYS() around an unreachable condition in sqlite3VdbeMemGrow(). 
FossilOrigin-Name: 0f3eb61f44c94234ffc14c3a493a27ec62c0d1e2bb62798f36eafa98ddcdc58e
 2017-04-11 12:20:54 +00:00
dan
b8d29c2f75 Fix a segfault that could occur if an indexed expression was used in a 
comparison operation within the result-set of a SELECT statement.

FossilOrigin-Name: d6bb7c42ff6309ce168ccdcf03b4cdabfccfc9e2a911d254ac7dc4fea4aa2bc1
 2017-04-11 11:52:25 +00:00
drh
d6e992cb1e When using an index on an expression, try to use the columns of the index 
rather than pulling columns from the table and reevaluating the expression.

FossilOrigin-Name: a47efb7c8520a01110ce3b3531ebe1bab6720780d67fba001992c44c5807d332
 2017-04-11 01:30:42 +00:00
drh
eac5fc0476 Improved comments. Fix a problem when an indexed expression is used in an 
ORDER BY clause.

FossilOrigin-Name: c59eaf2b7cd2596733f349fc0fe979f71fd29bd73152a0c57066e0b69d5b7a4a
 2017-04-11 01:01:27 +00:00
drh
2f8b37850c Merge changes from trunk. 
FossilOrigin-Name: 8978465f335925378d3aa99df6190ce6a1ee6b130205ccc493f2399803844760
 2017-04-10 23:42:04 +00:00
drh
0415d826c0 Smaller and faster vdbeFreeOpArray() 
FossilOrigin-Name: e052436d9f54b785facd661adc648512356b831c0547aa8f347ebf4bd8ef1254
 2017-04-10 20:51:21 +00:00
drh
4c6463cc29 Slightly smaller and faster sqlite3VdbeMemGrow(). 
FossilOrigin-Name: efd1702ae8da8e0dd3d2ee7bd5a1bd8aeff2b370498e404041fcb406fdaf72e4
 2017-04-10 20:27:54 +00:00
drh
2ac702d8c0 Add a new JSON test case to verify that all control characters are escaped 
in the json_quote() function.

FossilOrigin-Name: 6ee12221fa252784c897a24ae8cff64dfe6149cbc9020abe14539df33202d892
 2017-04-10 12:31:15 +00:00
drh
e12e24ded8 Change the JSON extension so that it disallows control characters inside of 
strings.  Fix for ticket [6c9b5514077fed34551f98e64c09a10dc2fc8e16].

FossilOrigin-Name: 475d8f82ec61a4ff3e6a7650731230ccecb6cc580d1397d189d0ba479d9bad4d
 2017-04-10 12:25:05 +00:00
drh
7a6ea93fd8 Do not expose the name of the internal Mem object in the public interface 
defined by sqlite3.h.

FossilOrigin-Name: 19dd753f9e50fee247b1ab141669817c7e88bc3f6d6065dba6c731db9f7a2409
 2017-04-09 19:23:55 +00:00
drh
9fa866a8d9 Disallow leading zeros on numeric constants in JSON. 
Fix for ticket [b93be8729a895a528e2]

FossilOrigin-Name: 204e72f0080e8f08f99978870bd3cb9d59b068ecffee82192d707c650548b43b
 2017-04-08 18:18:22 +00:00
dan
a34adaf667 Expand on the comment above OP_Destroy to explain why it throws an error if 
there are any active reader VMs.

FossilOrigin-Name: b9a8c2b9bec9f537b2d5aff6659a5748b1f70b53519a1f9dfceb5209154eca8e
 2017-04-08 14:11:47 +00:00
dan
5b09d13a58 Have the rtree module close any open blob-handle within the xSavepoint method. 
This prevents such an open blob handle from interfering with DROP TABLE
operations.

FossilOrigin-Name: fa4416adc2a9a3a80db1d5befc0b95c3d0fc41affe38f7f2f45cdfae3f1b49eb
 2017-04-08 13:52:41 +00:00
drh
13fe138b0a Fix the quoting mechanism for ".dump" so that it is not applied for the 
".mode quote" output.

FossilOrigin-Name: 78c1e90305d48917d9423d8e50a7dfd15ec27aa93cb421610062229c7ede13a6
 2017-04-08 13:42:55 +00:00
dan
be0bc8bb4d Have fts5 close any open blob-handle when a new savepoint is opened. This 
ensures that fts5 does not prevent DROP TABLE statements (which always open a
savepoint) from succeeding.

FossilOrigin-Name: a921ada89050ce1d162fd1b0056939573635e2cec7ac0c2a99ae924b3ae593f7
 2017-04-08 09:12:20 +00:00
drh
297e2bdb8e Make sure the RTree sqlite3_blob handle is reset prior to renaming the table. 
FossilOrigin-Name: 1cdae2db3c54970a1811e597065724578408c84d49d75b8fe25d56281ddc2e94
 2017-04-08 01:09:14 +00:00