5b9dbd1ed0
Update the README.md file in the ext/expert/ directory.
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2017-04-21 19:53:39 +00:00
c42a0056d7
Merge latest trunk changes into this branch.
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2017-04-20 17:35:46 +00:00
ac33c0343f
Avoid creating a temp table in the user database in the sqlite3_expert code.
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FossilOrigin-Name: 4e366996434e63f06cc451d2011f1f1464360f03430b8260e48f78a612b4e9d6
2017-04-20 17:03:32 +00:00
bc3f784cd2
Speed this branch up a bit by filtering before the virtual table layer when
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sampling user data.
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2017-04-20 16:43:32 +00:00
6ebd7ff482
Avoid adding INTEGER PRIMARY KEY columns to candidate indexes.
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FossilOrigin-Name: 4577fea5cd9d91ea241e9be82797ca1a4447f536e1e4b78a4a569aeb52e78fcb
2017-04-20 16:18:43 +00:00
2ed99def5b
Avoid creating a temp table in the user database in the sqlite3_expert code.
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Trouble is, this makes sampling for stat1 data much slower.
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2017-04-20 16:08:33 +00:00
e53b4f9774
Add an option to generate stat1 data based on a subset of the user database
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table contents to sqlite3_expert.
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2017-04-20 09:54:04 +00:00
dc62daca86
Further improvements to coverage of fts3 module.
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2017-04-19 13:25:45 +00:00
a059e99ca8
Further modifications and test cases to improve test coverage of fts3.
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2017-04-19 07:33:52 +00:00
a6ed5a4f39
Have sqlite3_expert_analyze() populate the sqlite_stat1 table before running
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queries through the planner for the second time.
FossilOrigin-Name: a157fcfde5afc27ae38e7cf4669fcc8e60e23d9d301ffe2e541dd69f895b493b
2017-04-18 20:10:16 +00:00
0027e98b85
Use sqlite3_table_column_metadata() instead of a SELECT statement to check for
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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
bff6fe1f40
Improved optimizations of views as the right operand of a LEFT JOIN.
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FossilOrigin-Name: 41c27bc0ff1d3135cdb6273ede4595f5bb0c0e1e1d470ea1633cb525674cf431
2017-04-18 11:20:19 +00:00
7853002c71
Fix sqlite3_expert handling of triggers on views.
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FossilOrigin-Name: ff4976da667872614331d88e68fb67d347874f164a1c7950dd738c7c2320b954
2017-04-18 09:04:48 +00:00
bda00fbdb7
Refactor the fts3ColumnMethod() function so that all branches can be covered.
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FossilOrigin-Name: e47fdb493bd76d85f6f05771ee7a0b3ee31b1eb05839a60d2bdb47149ac692d8
2017-04-18 05:49:23 +00:00
cfcca02765
Defer checking for null in the comparison operators, since that is an
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uncommon case.
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2017-04-17 23:23:17 +00:00
e2bc6552fe
Do not allow a Mem object to be both NULL and some other type at the same time.
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FossilOrigin-Name: e698db1956bb3aba32cd3ec633ec20f5d19b1a10bc68d3772903bca3c87ee158
2017-04-17 20:50:34 +00:00
4bee5599c0
Consolidate two branches of code in the "PRAGMA foreign_key_check"
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implementation.
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2017-04-17 18:42:33 +00:00
940464b1dc
Fix a problem in "PRAGMA foreign_key_check" in handling a WITHOUT ROWID child
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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.
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2017-04-17 18:02:41 +00:00
280db65e2c
Add support for analyzing trigger programs to the sqlite3_expert code.
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2017-04-17 17:03:08 +00:00
624edacf6a
Further improvements to test coverage in fts3.
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2017-04-17 16:07:25 +00:00
ddf4747053
Improve coverage of code in fts3.
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2017-04-17 13:38:09 +00:00
6887e8facd
Fix the ".column" output mode in the command-line shell so that it correctly
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counts and formats multi-byte UTF characters.
FossilOrigin-Name: f508aff8d1782abdff4d03726ae098607a0ee6cfd2e35b130097ee5043e98960
2017-04-17 13:18:42 +00:00
b6d5a43b8a
In the showwal command-line tool, for unix builds, if the
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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
b65b3e429a
Add the anycollseq.c loadable extension in etc/misc
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2017-04-16 22:08:31 +00:00
2abf90096f
Fix problems with handling constraints on the rowid column in sqlite3expert.c.
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FossilOrigin-Name: 2e6308798ae2db30564deb35ba3896597448edabbcac6efc4ff084552e42de30
2017-04-15 16:52:12 +00:00
990b6ceccf
Merge latest trunk changes into this branch.
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FossilOrigin-Name: 2d0c458e013cb2d02fbeabed8dabd66f55141aac194611f0e599b3c95af1964f
2017-04-15 15:47:19 +00:00
e01b9281fc
Add header comment for sqlite3_vtab_collation().
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2017-04-15 14:30:01 +00:00
79610f5d09
Fix memory leaks in the code on this branch. Make use of the
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sqlite3_index_constraint.usage field. Do not try to handle ORDER BY terms with
explicit COLLATE clauses - they don't get passed to the vtab layer anyway.
FossilOrigin-Name: 0cd75a872c89958a7f418720a0e8c6f638f8284c488f666015c19136feae6be8
2017-04-15 14:16:04 +00:00
147fd88268
In the skip-ahead-distinct optimization, fix a bug in the logic that determines
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when to invoke the optimization based on sqlite_stat1 statistics.
FossilOrigin-Name: 89f9e4363aa19f306e55f749c442eae2f8994f6a47c65e645a79b308b450d5e5
2017-04-15 11:53:47 +00:00
a2e2d92b21
Fix to the decision logic for when to use the skip-ahead-distinct optimization.
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2017-04-14 22:41:27 +00:00
06f60d8e87
Remove end-of-line whitespace from lemon.c.
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2017-04-14 19:46:12 +00:00
14d8855b8f
Fix some left-over K&R-C constructs in lemon.c. No changes to the core.
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FossilOrigin-Name: a53799059d4ece246610b6c877ab7088ded3548cbca7149a03deea8ac0e27e68
2017-04-14 19:44:15 +00:00
0824ccf29b
Modify the code in ext/expert/ to use the vtab interface instead of
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sqlite3_whereinfo_hook(). Remove sqlite3_whereinfo_hook().
FossilOrigin-Name: 3bb6585004090dbf92dd5e9abdf0fd2c921e64b5b3121c4fb7446db764ab59e5
2017-04-14 19:41:37 +00:00
31d6fd5507
Add the TK_IF_NULL_ROW opcode to deal with non-NULL result columns in the
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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
1a17b44231
When doing a DISTINCT query using an index, try to use the index to skip ahead
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to the next distinct element, rather than doing a full scan of the index.
(This is the "skip-ahead-distinct" optimization.)
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2017-04-14 17:30:43 +00:00
399c7e21e4
An initial attempt to optimize VIEWs that occur as the right operand of a
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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
b1ed717f18
Make USE_FULLWARN=1 the default for MSVC and fix harmless compiler warnings.
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FossilOrigin-Name: 6bf673767b8e5cedef1acff795cbe524fab8db2525c06424db4e038934a33936
2017-04-14 14:50:34 +00:00
d97cda43ab
Enhance the sqlite3TreeView() display for Expr objects so that it shows
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the iRightJoinTable value for Expr nodes that have the EP_FromJoin property.
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2017-04-14 14:02:14 +00:00
46967de2ec
Simplify the interface to the subst() routines that are part of the
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query flattener by collecting common parameters into the SubstContext object
and passing around a pointer to that object.
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2017-04-14 12:39:37 +00:00
7c88bcd473
Remove an incorrect ALWAYS().
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2017-04-14 12:27:45 +00:00
571311502d
Fix a couple of unreachable branches.
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FossilOrigin-Name: 1aa0ea8db7580aff8bed2f78117ed50019e5545cef48cab782f512a2599fd0c5
2017-04-14 00:45:51 +00:00
172806e489
Fix the skip-ahead-distinct optimization so that it works with indexes that
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have repeated columns with different collating sequences.
FossilOrigin-Name: ce1e2b88777e00a82c04abe5ba35eec81b5f324e462f099cd00b21054f369688
2017-04-13 21:29:02 +00:00
c04ea80f64
Simplification of the skip-ahead-distinct logic. There is still an issue
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with handling COLLATE.
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2017-04-13 19:48:29 +00:00
a74f5c2923
New test cases and minor fixes for the optimization on this branch.
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2017-04-13 18:33:33 +00:00
81beb6d115
Update this branch with latest changes from trunk.
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FossilOrigin-Name: 5fcd840cf9b6a5c3ee4ef1e8f92f6c30f96a7899a3d774ee9be8a816916f2c3b
2017-04-13 16:19:40 +00:00
d0a537100c
Reinstate the SQLITE_API qualifier on the sqlite3_delete_database() method in
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test_delete.c. Accidentally removed by the previous commit.
FossilOrigin-Name: 59c70108fd179932ccdd860f93e1cd68b77476d3b1af1af00cf6e378c9984862
2017-04-13 15:51:27 +00:00
44ae27ac32
Update the code in test_delete.c to use the "win32" VFS if SQLITE_OS_WIN is
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defined.
FossilOrigin-Name: fa9bb7b768027677f7e7d5a196ba5b245dfc8d8986ccd101c8dab671bd15719d
2017-04-13 15:36:47 +00:00
839fa6d814
Only use the skip-ahead-distinct optimization if the index has been analyzed
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and we know that a skip-head is likely to skip over at least 11 rows. The
magic number 11 was determined by experimentation.
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2017-04-13 13:01:59 +00:00
929b695111
Allow a user column name to be used on the LHS of a MATCH operator in FTS5.
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FossilOrigin-Name: 6f54ffd151b0eca6f9ef57ac54802584a839cfc7373f10c100fc18c855edcc0a
2017-04-13 09:45:21 +00:00
8489bf5aff
Forward port the skip-ahead-distinct branch which was abandoned for some reason
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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.
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2017-04-13 01:19:30 +00:00
dan