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Author SHA1 Message Date
dan
874080bbb6 Clear the BTCF_ValidNKey flag set if a cursor is moved by 
sqlite3BtreeInsert(). Fix for [f68dc596c4].

FossilOrigin-Name: a6727eef6d757a39ad23e5c8cbe960f5d909e5d37cb4e90bc3bdbb8bf58cd6f8
 2017-05-01 18:12:56 +00:00
drh
7555581fc1 Add a single testcase() macro to the subquery processing logic. 
FossilOrigin-Name: 4e1df76e3d85922648e0e1cce73a266c3b1ed4511ace259ec0a01d7693af9e6f
 2017-04-29 19:29:49 +00:00
drh
bb6783b86f Improvements to opcode documentation in the bytecode engine. 
No changes to code.

FossilOrigin-Name: e54c9f8db5b2fa8ea82c6eab7482255431af16901f7992c9667b56a0e50a9f4f
 2017-04-29 18:02:49 +00:00
drh
bc43995f99 Evaluate WHERE clause terms that reference only the index before evaluating 
terms that require the table, and thereby avoid seeking the table row if
index terms are false.
This is called the "push-down" optimization in the MySQL world, we are told.

FossilOrigin-Name: d7bb79ed3a40419d143fbe35c310e51fe7b384a22f082a61ad788671d2d33ee0
 2017-04-29 15:27:04 +00:00
drh
6ab3eb5d0e Minor size and performance improvements to the push-down optimization. 
FossilOrigin-Name: 91dfb61a1a25763bb0b5c1e353a9d584bc6de3f6eb445f54202ffe7f6fee6e8d
 2017-04-29 14:56:55 +00:00
dan
6f654a40e8 Within a loop that uses a non-covering index test, test non-indexed terms that 
can be tested without seeking the main table cursor before those that cannot.

FossilOrigin-Name: afe68f0a8060dc5c92cb1fb32a9f22bd36140cd2c0bb5b6cea853e169c5ed444
 2017-04-28 19:59:55 +00:00
dan
4b17369579 Add new test file cachespill.test. 
FossilOrigin-Name: 2d0b64316d66a362f5891ceb71a1fd8e4607732274b09b0a8472b97eef68ebc2
 2017-04-26 17:21:33 +00:00
dan
b9e6a73866 Replace <fts5.h> with "fts5.h" in test file fts5_test_tok.c. 
FossilOrigin-Name: 63d9ca5c7392e1efe3330689fe750310a952287e843b3242178724e8561fae0e
 2017-04-26 14:34:04 +00:00
drh
69bfa55279 Fix a subtle bug in Lemon discovered and reported on the mailing list 
by Kelvin Sherlock, who also suggested the correct fix.

FossilOrigin-Name: 304689f8acb53d68e1afed6e6c4332e78132e3d57071b8f94df0d13515b3b3d8
 2017-04-26 04:32:17 +00:00
dan
a1188d6d93 When building an ephemeral table of integers, do not assume that the table 
does not already contain N if the insert cursor points to N-1. Fix for ticket
[61fe9745].

FossilOrigin-Name: 1c1b0862236f564283be08338790d6494e705f1198547a59499e3f8c07f2cd99
 2017-04-24 14:16:55 +00:00
drh
0c3233be0b Fix an assertion fault found by OSSFuzz. 
FossilOrigin-Name: e39769f442ea86273f8fb7bd2f249b7d760b2fe4bf9ec191ff91def8231f3f35
 2017-04-22 00:20:49 +00:00
dan
39c9d3a367 Remove a NEVER macro for a condition that may be true as of [a47efb7c]. 
Problem reported by OSSFuzz.

FossilOrigin-Name: bdc50d8d127266d02b291f6bfcd4e35eb07994ce23987d6e3921124cd881929a
 2017-04-21 17:03:32 +00:00
dan
0619838c55 Fix an FTS5 bug that could cause a prefix-query without a prefix-index on a 
database that contains delete-markers to return extra, non-matching, rows.

FossilOrigin-Name: 840042cb2bed2924e2263f21887317f661e5a585c4466c3af25b91ed57a6b49b
 2017-04-21 16:04:18 +00:00
dan
dc62daca86 Further improvements to coverage of fts3 module. 
FossilOrigin-Name: 6b21d0fdebdccfaf63590d9ca9a279c22b8baec07c1a669b9f617f25bd857384
 2017-04-19 13:25:45 +00:00
dan
a059e99ca8 Further modifications and test cases to improve test coverage of fts3. 
FossilOrigin-Name: ea8a0d2ce0cb1ca3f4f18c72fb780d1c26792799acc87e6726f9eaccf2f178bf
 2017-04-19 07:33:52 +00:00
dan
0027e98b85 Use sqlite3_table_column_metadata() instead of a SELECT statement to check for 
the existence of a %_stat table in fts3. This leads to smaller and easier to
test code.

FossilOrigin-Name: dc2a48020a3c856a8b4cfa2309c290f0508b991e92cc0e4de680d19aae7872fc
 2017-04-18 13:50:00 +00:00
drh
bff6fe1f40 Improved optimizations of views as the right operand of a LEFT JOIN. 
FossilOrigin-Name: 41c27bc0ff1d3135cdb6273ede4595f5bb0c0e1e1d470ea1633cb525674cf431
 2017-04-18 11:20:19 +00:00
dan
bda00fbdb7 Refactor the fts3ColumnMethod() function so that all branches can be covered. 
FossilOrigin-Name: e47fdb493bd76d85f6f05771ee7a0b3ee31b1eb05839a60d2bdb47149ac692d8
 2017-04-18 05:49:23 +00:00
drh
cfcca02765 Defer checking for null in the comparison operators, since that is an 
uncommon case.

FossilOrigin-Name: 5684525613961fed9db6a4d10dbe25521201b24f08e011df3a20ac895316957d
 2017-04-17 23:23:17 +00:00
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&amp;R-C constructs in lemon.c. No changes to the core. 
FossilOrigin-Name: a53799059d4ece246610b6c877ab7088ded3548cbca7149a03deea8ac0e27e68
 2017-04-14 19:44:15 +00:00
drh
31d6fd5507 Add the TK_IF_NULL_ROW opcode to deal with non-NULL result columns in the 
result set of a view or subquery on the RHS of a LEFT JOIN that gets flattened.

FossilOrigin-Name: 3a5860d86fadcf924316707918bf283d26c53b1473e5e67f5cff59d18c2a7742
 2017-04-14 19:03:10 +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
drh
399c7e21e4 An initial attempt to optimize VIEWs that occur as the right operand of a 
LEFT JOIN.  This particular check-in does not work correctly because it does
not deal with the case of columns in the VIEW that return non-NULL even when
all columns in the table of the VIEW are NULL because of the LEFT JOIN.

FossilOrigin-Name: 1838a59c8a1c151bd6fc822b0ffef661803cf0e4704c917e74a04567b81740b9
 2017-04-14 17:18:45 +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