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Author SHA1 Message Date
drh
bd0f1dbd06 Get sqlite3_expert building on Windows. 
FossilOrigin-Name: d8254047b30f7c1be486bf39d4420678604573b951b5cc83c19ebf74aba0864c
 2017-05-03 12:50:46 +00:00
drh
138bd6df41 In sqlite3expert.c, do not copy the schema for virtual tables. Updates to 
makefiles to make building easier.

FossilOrigin-Name: da15752dccf6090e40ec825db89048eca2b30185882225bf81f1891e914c2e7f
 2017-05-03 12:15:20 +00:00
drh
382bce037c In the sqlite3_expert command-line tool, allow two-dash options. Do not 
accept the database name if it begins with "-".

FossilOrigin-Name: af7d1596044980e0a18baa3ab6674779724dffbf18a152c72e53f11a08999e68
 2017-05-02 20:42:30 +00:00
drh
5034dc673d Merge the latest enhancements from trunk. 
FossilOrigin-Name: a7dcf6a79f7e1c5884baee2909a4bf3174ae06d561dae87b390856e573f81b49
 2017-05-02 19:45:14 +00:00
drh
e780764b4e Fix the fts3EvalAverageDocsize() routine so that it returns errors from 
sqlite3_reset() rather than always returning SQLITE_OK.

FossilOrigin-Name: 430f539cbb3f806fb89191e0b759a5f8b49d9e5b6c95fe9a4b55a1aa0875762a
 2017-05-02 18:00:31 +00:00
drh
3f4df4c6f3 Reuse the same materialization of a view when that view appears in a query 
more than once, such as in a self-join.

FossilOrigin-Name: 9e35c89dbe744312f612e507b51ff9a5bb656def75392d25bc19fc638548cd1e
 2017-05-02 17:54:19 +00:00
drh
a1f5c0c90b Move terms of the HAVING clause that reference only columns in the GROUP BY 
clause over to the WHERE clause, resulting in a faster query plan.

FossilOrigin-Name: 47cbb471d056c8e1834a5ca72491404a3bfb273b5ff7bdd84b98d263938ea874
 2017-05-02 16:55:07 +00:00
drh
ab314001b8 Additional comments on the sqlite3ExprIsConstantOrGroupBy() routine. No 
code changes.

FossilOrigin-Name: 8424492eac506866d2918e5fe03c8f65fef960215d56012a3b52ed42789ed35a
 2017-05-02 16:46:41 +00:00
mistachkin
8d5cee166e Fix typo in comment. No changes to code. 
FossilOrigin-Name: 6674814afb9e763e7f7060776586e26da28040b3208ce06c8a285dd647e5a53d
 2017-05-02 01:30:44 +00:00
drh
c478c8daec Remove an unnecessary branch. 
FossilOrigin-Name: a33179596f534067a58d68b77160f11ab13272b29f912d7cbe15ea00bbf03ade
 2017-05-01 19:53:12 +00:00
dan
4b2667c8b8 Enhance "PRAGMA integrity_check" to detect duplicate rowids within a leaf 
page.

FossilOrigin-Name: adcad37b001d255299be716b16003b56ec1fba349ef73261ee0e543186c4f311
 2017-05-01 18:24:01 +00:00
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
ed71298085 Futher bug fixes to the function that determines when a materialized view 
can be reused.

FossilOrigin-Name: c64fe3a1695925693385d313e9ad2a1d8cb37ddaa8cc19920ae0978c91bc4c2c
 2017-05-01 17:04:35 +00:00
drh
33543c237b Minor bug fixes and performance enhancement. 
FossilOrigin-Name: b2aae559581d05e4e8caaddfbd137cb275d582e82d58872c6f42e462dc859b1c
 2017-05-01 16:37:20 +00:00
drh
e08e8d6b61 Initial implementation of an optimization that attempts to reuse the same 
materialization of a view on a self-join of the view.

FossilOrigin-Name: 478c34b9a8b5127d13024e10307aa832f160b89720c46424dd17555bd36f590d
 2017-05-01 15:15:41 +00:00
dan
6f92c34866 Update this branch with latest trunk changes. 
FossilOrigin-Name: 11f4761c3a84e2cc9df62f117a003af8c57f3d226eec5a40d6241b121e78d002
 2017-05-01 14:25:34 +00:00
dan
181a1167dc Add extra tests for the optimization on this branch. 
FossilOrigin-Name: 4921cd9520080f9baff70e548f64a56e2204b398b8397a2d318a98c32ec4b00c
 2017-05-01 14:09:32 +00:00
dan
ab31a8450b Automatically transfer terms from the HAVING clause to the WHERE clause of an 
aggregate query in cases where the result of evaluating the term depends only
one one or more of the GROUP BY expressions (and on no other inputs).

FossilOrigin-Name: 5375a3ce56f1d993b13b469fe33ec7679948f53940f62a15ddbaeb8aaa26a22c
 2017-04-29 20:53:09 +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
f3ac8ba569 Another minor formatting fix. 
FossilOrigin-Name: 9fa2ce3c2b75408594d387684984cd946765776d30bc622a1f4e64d6fe1856d5
 2017-04-21 19:58:35 +00:00
dan
6b0fa916f5 Fix formatting errors in the previous commit. 
FossilOrigin-Name: da9a2e5aa977f7e8e9e4365f7b34bb4f482029a3d44646100773cedc8ea9b959
 2017-04-21 19:56:53 +00:00
dan
5b9dbd1ed0 Update the README.md file in the ext/expert/ directory. 
FossilOrigin-Name: 3b2ff4e0692dfca395d4523b7d5cd0dfd5c319c1072a2a873631fa477cee0b79
 2017-04-21 19:53:39 +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
c42a0056d7 Merge latest trunk changes into this branch. 
FossilOrigin-Name: b1533bc455f52f570c0f4b8aaa0da802757dc89b0e45b9a9b31aa591a44bf7bd
 2017-04-20 17:35:46 +00:00
dan
ac33c0343f Avoid creating a temp table in the user database in the sqlite3_expert code. 
FossilOrigin-Name: 4e366996434e63f06cc451d2011f1f1464360f03430b8260e48f78a612b4e9d6
 2017-04-20 17:03:32 +00:00
dan
bc3f784cd2 Speed this branch up a bit by filtering before the virtual table layer when 
sampling user data.

FossilOrigin-Name: 8e57c31340dd9ffc457da63c5996fb1b573f8154f864ec2b52c15f399906ac8b
 2017-04-20 16:43:32 +00:00
dan
6ebd7ff482 Avoid adding INTEGER PRIMARY KEY columns to candidate indexes. 
FossilOrigin-Name: 4577fea5cd9d91ea241e9be82797ca1a4447f536e1e4b78a4a569aeb52e78fcb
 2017-04-20 16:18:43 +00:00
dan
2ed99def5b Avoid creating a temp table in the user database in the sqlite3_expert code. 
Trouble is, this makes sampling for stat1 data much slower.

FossilOrigin-Name: c62e358243d96cb38a7ce2aa679fc640b62bf46080eab4bd5fc2acf5997d6cd5
 2017-04-20 16:08:33 +00:00
dan
e53b4f9774 Add an option to generate stat1 data based on a subset of the user database 
table contents to sqlite3_expert.

FossilOrigin-Name: c69c3e21db6e141f7e24226c6432f2ed31fe5f177bd23781915871f8600ee56a
 2017-04-20 09:54:04 +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
a6ed5a4f39 Have sqlite3_expert_analyze() populate the sqlite_stat1 table before running 
queries through the planner for the second time.

FossilOrigin-Name: a157fcfde5afc27ae38e7cf4669fcc8e60e23d9d301ffe2e541dd69f895b493b
 2017-04-18 20:10:16 +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
7853002c71 Fix sqlite3_expert handling of triggers on views. 
FossilOrigin-Name: ff4976da667872614331d88e68fb67d347874f164a1c7950dd738c7c2320b954
 2017-04-18 09:04:48 +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