Commit Graph

16763 Commits

Author SHA1 Message Date
dan 0a841a2b85 Avoid zeroing the value returned by sqlite3_changes() when a DML statement is automatically reprepared in sqlite3_step().
FossilOrigin-Name: 09c8f9f1970cd5b369d98a2b38f0b04d44ed095cb0bda80f7968bb6be4e0263b
2022-06-08 18:20:36 +00:00
drh 8a5469b6f5 Improved comments on the new query flattener restriction of the previous
check-in.  Also a NEVER() macro on an unreachable branch.

FossilOrigin-Name: 8c9e2d6315fde014bd6e25a7fa58ba054f5328c8a56e9d3d1c2d069c025a1b03
2022-06-08 17:48:14 +00:00
drh 40357f0d5d Fix the query flattener so that it refuses a flattening that might leave both
an inner-join and outer-join ON-clause constraint (or equivalent) on the same
term of the FROM clause.

FossilOrigin-Name: f6c4fb48b65c2e8659aa0a1119c330e8bad5e42b2db2030850bfc9c04afef5c8
2022-06-08 15:38:16 +00:00
drh 5c118e3946 Add restriction (29) to the query flattener - do not allow flattening that
would leave both EP_InnerON and EP_OuterON constraints on the same join term.

FossilOrigin-Name: c585d6a4678b04f4cedc08852d01c44cdf52ae2c8ccd1174c3d5a395088bf528
2022-06-08 15:30:39 +00:00
drh 093dd41e97 Do not allow a partial index scan on the left table of a RIGHT JOIN, because
since the index is partial, some rows will be omitted from the scan, and
those rows will subsequently be picked up by the no-match logic in the
right-join post-processing loop.
[forum:/forumpost/c4676c4956|forum post c4676c4956].

FossilOrigin-Name: 615c0026119f7870c3b6ef9dcb57ce4ecf5acedea3e2b5cfc25aa450eb8f17a0
2022-06-08 12:46:58 +00:00
drh 644817721e Update the routine that determines whether or not a partial index can be used
so that it is not specific to LEFT JOIN.

FossilOrigin-Name: 5a107fd7fa01554d73fefc0611e5797b8c23e782ce0df3aeba7e2f288675b2ce
2022-06-08 12:20:49 +00:00
drh 33b2cb9aec Fix the query flattener to deal with a RIGHT JOIN corner case described
by [forum:/forumpost/323f86cc30|forum post 323f86cc30].

FossilOrigin-Name: 3f45007d544e5f787d5837b4d9f484ba473d69cdba83c229228e9c2f6b972b75
2022-06-07 13:09:58 +00:00
drh d580bea7d4 Preserve the database encoding on the CAST operator in the
sqlite3ValueFromExpr() routine.
[forum:/forumpost/800eecf5e6cdc3f4|Forum thread 800eecf5e6cdc3f4].
Test case in TH3.

FossilOrigin-Name: 3f6a442099b8264cc788e8aa2b12cc583439a5263c4fe433fd22b7af1be2458e
2022-06-07 10:14:22 +00:00
drh 16828c8c12 More precise determination of when a WHERE/ON clause term can be used as an
indexed join constraint.  Testcase macros added to ensure test coverage.

FossilOrigin-Name: f419e98c515e704efa11728192b2594e962cb0e6d2d1837f99a8caf65f4d93cb
2022-06-06 22:33:44 +00:00
drh c18fc6134e Do not allow a WHERE clause constraint to be used to drive an index for
the right operand of a RIGHT JOIN, since this can cause problem if the
constraint implies a not-NULL value for one of the columns for the left
operand of the same join.  See
[forum:/forumpost/206d99a16dd9212f|forum post 206d99a16dd9212f].

FossilOrigin-Name: 4a31b7942a15c9c4363477365784d6d4ac5b1bbe8ff8aeaf2dd3d6532bf8bc96
2022-06-06 15:27:42 +00:00
larrybr 0dbb3db431 Sync w/trunk, pickup fts3corrupt6.test change.
FossilOrigin-Name: 268072f636b25c24ec47e34f2a8356f466ec200b80487b1041e89e0ae909c8bd
2022-06-06 14:00:41 +00:00
stephan 626aa48c26 shell: in WASM mode, permit ATTACH because the filesystem is a virtual sandbox and ATTACH can be used to provide more import/export options. Minor doc updates in sqlite3-api.js.
FossilOrigin-Name: f28de5b726999b913b442fa51355d020ba1f1662d2f7978380623c16438eb238
2022-06-06 04:09:44 +00:00
larrybr f3d6e8fd6e In CLI, drop .dbinfo command when build options prevent it from working.
FossilOrigin-Name: 2512d2f68dfff4d74c881a4102b63ca528e690ad93ab2b4eb1f03ce1d9ac155c
2022-06-05 22:58:40 +00:00
dan 410fac35d7 Fix a problem with flattening and window functions causing an "IS <column>" to be transformed to "IS TRUE" or "IS FALSE" when <column> is a view or sub-select expression that is the literal value "TRUE" or "FALSE".
FossilOrigin-Name: 2a952c7738d94e70024e06600fee8c3a49f317f2d02774468019bd7cf9488c8b
2022-06-02 16:26:21 +00:00
mistachkin bf154369e7 Avoid a direct use of abort() in debug builds to prevent a compilation issue for Windows CE.
FossilOrigin-Name: 8eb9a7dd07afc0aef0b7c67054d73e7e821138867d115407b71c985e90d44d59
2022-06-02 02:45:59 +00:00
drh f89f4efb28 Ensure that subqueries associated with row-values are invoked before being
used when processing a RIGHT JOIN.  Fix for the problem described by
[forum:/forumpost/087de2d9ec87305b|forum post 087de2d9ec87305b].

FossilOrigin-Name: 5a9465dcc0c23fc2c66cd4898bcdfd5086fe4c71ec19a95db7221fdf7c0bbbbd
2022-06-01 16:05:25 +00:00
drh a5d06a3d54 Ensure that all necessary row-value subqueries are invoked while running
the right-join post processing.

FossilOrigin-Name: e4e71b4cd4c026fc36f0da1703e6237e6ddd8ff2e08dc3c0011632b9e63098cd
2022-06-01 15:53:11 +00:00
dan f74f4ed5b5 Fix a minor problem in the Tcl "incrblob" command. This does not affect the SQLite core.
FossilOrigin-Name: e96feccc21d9b858f076960e029b615809243d0cc3f95db75180feb01887451f
2022-06-01 14:32:05 +00:00
drh 0f4b534b60 Candidate fix for the problem with row-value WHERE clause constraints on
a RIGHT JOIN.

FossilOrigin-Name: fdd782a7bb217e2aceda97a588c0d7874ee19885abfcf0658472d6c3387da6ee
2022-06-01 13:32:47 +00:00
drh 6d013d890e Only include the code for sqlite_offset() if compiled with
-DSQLITE_ENABLE_OFFSET_SQL_FUNC.

FossilOrigin-Name: 382cd7e10b2df4216da8f25b55546bc74a963d9834af240f75ec8b8321ba106e
2022-06-01 13:32:05 +00:00
drh 645682a7c7 Move the sqlite_offset() function implementation to be an in-line function,
thereby avoiding special case code and freeing up a bit in the
FuncDef.flags field.

FossilOrigin-Name: 1c9812c458bd229c862efe5df1b64fae333da9871c8756b5ae4605a81bcda4b5
2022-06-01 11:05:59 +00:00
drh f51672a945 Fix an assert that is incorrect for a corrupt database.
FossilOrigin-Name: fe0a840805b435efd38a953a8aae60e29a35289f9d9955472a8bab2bce7051c8
2022-05-31 15:18:55 +00:00
drh c9dfe2b808 Add back in a test case for ON-clauses that was removed yesterday by
[3869fd9a2b9483cbf] but which turned out to be necessary after all.

FossilOrigin-Name: aba52a90eef2a5d06e7c499fe84b2efcde7f01e67129058f8223a6a0272aacb9
2022-05-31 11:13:55 +00:00
drh 404bf6bac6 For an outer join, then ON-clause constraints need to be evaluated at just
the right moment - not too early and not too late.  Fix for the problem
reported by [forum:/forumpost/3902c7b833|forum post 3902c7b833].

FossilOrigin-Name: 3869fd9a2b9483cbbf83d8f369c1744abc42f12e63abba402be35dd7e136161c
2022-05-30 17:33:22 +00:00
drh 1943005f62 Apply the UPDATE-FROM file from check-in [98b3816bbaf539ea] to
update-delete-limit builds.

FossilOrigin-Name: 7e87892c249f023ee9ed1d5f75a9ad8db10fb38f14dd9e6954b12b9b28400b07
2022-05-28 14:03:23 +00:00
drh 5af8a86d62 Mark an always-true conditional as ALWAYS().
FossilOrigin-Name: 3492fe8a212cbe02b9016866e2499b99c3b566a4b0bc91fba267e6e1fe1b8943
2022-05-27 18:06:49 +00:00
drh abe1ff38dd Minor simplification to ALTER TABLE logic.
FossilOrigin-Name: 01beb0365c529481605f1864b1b6760e2484fad08d56a72e00e34acff37e23f8
2022-05-27 17:36:21 +00:00
dan ca29bbce2f Fix another problem with ALTER TABLE and UPDATE...FROM in triggers.
FossilOrigin-Name: 33cf12235e6469ba17cfb72cef0e480dfd0dea81ed412fb1fb24b05dbeb8dc02
2022-05-27 15:33:51 +00:00
dan 4209d553e7 Fix further issues with ALTER TABLE and triggers that contain UPDATE..FROM statements.
FossilOrigin-Name: 53fbc269ddbabc4a97d297e881e5f9cd2bfbcd24af4af1b7cf9db412a3a51813
2022-05-27 15:04:43 +00:00
drh 8d2f661ab8 Omit an unnecessary branch.
FossilOrigin-Name: f56473f9cc1b476b3219fe5b70ba2e4b269b20c880b99ba34c744ed893042081
2022-05-27 14:41:48 +00:00
stephan cd69784646 fiddle: added an option to completely wipe/reset the db. The Options area can now be toggled on/off via tapping the label at its top. Running the input SQL is now limited to the selected area if any text is currently selected, per suggestion in the forum.
FossilOrigin-Name: d100283e378f2d8e353399848184a4ab8ccf6316218fffc28b90a656cf81c279
2022-05-27 03:27:10 +00:00
dan b8bbe3e2db Fix issues with ALTER TABLE and triggers containing "UPDATE...FROM" statements.
FossilOrigin-Name: 2fba0d41b781d226915fa2bf888a7bc640c046ce22670ceb53f62a09f3975259
2022-05-26 19:10:11 +00:00
drh 26c4df0fb0 Correct handling of outer joins in the FROM clause of an UPDATE statement
that occurs inside of a trigger.  Follow-on to [98b3816bbaf539ea].

FossilOrigin-Name: 664a49fa813144b6fa5a7ae3f65af5412f150dd5def261c4d581d706b39f7846
2022-05-26 17:33:42 +00:00
drh e91bde4655 Clarification of the meaning of the N parameter in sqlite3_db_name().
Documentation only.  No changes to code.

FossilOrigin-Name: f22f41d2c8a676b9a339e7f00c29c163bbb7079b1a4a76ee1a6a96aaf7de5f9e
2022-05-26 14:46:09 +00:00
drh 724e298e9c Slight increase in the accuracy of log10().
FossilOrigin-Name: c48a735bd4a1dbd541aed5937c25fc0c606c4263d8ee94cae30a06b1a7b26d9a
2022-05-25 13:10:29 +00:00
drh 7bfbd2508c Do not allow the right operand of a RIGHT JOIN to be reordered with other
FROM clause terms that are even further to the right.  Fix for the issue
identified by [forum:/forumpost/5cfe08eed6|forum post 5cfe08eed6].

FossilOrigin-Name: 4be0c60e38edc5d5bfd72bb35a3c91c55240b4e6313a40614beb60f1ab9d9f4c
2022-05-25 12:49:59 +00:00
drh 361e0ede47 Add in a VdbeCoverage() macro accidentally omitted from [d64ae49a1f251317].
FossilOrigin-Name: 18b5cea0392a28f694b8931a80e93518f8d3d297d787fa44d1544e373f76838e
2022-05-25 11:17:13 +00:00
drh ddcdf0b0dd Fix the UPDATE-FROM logic so that it works the same as PostgreSQL when the
FROM clause contains an outer join.

FossilOrigin-Name: 98b3816bbaf539ea745456e1c0064e47d2903d33ee0ceb029bdb97d56fcde937
2022-05-25 11:09:07 +00:00
stephan 085c5c6b43 Add the ability to import/export db files into/from fiddle.
FossilOrigin-Name: e0c30438a4f1372afb93a0488bae17b3f85d535717b215f494a83ae909871d2c
2022-05-25 04:35:22 +00:00
drh fb98dac04f An attempt to get UPDATE FROM working when the FROM clause contains a
RIGHT or FULL JOIN.

FossilOrigin-Name: a124e4f96f883d8682ba7a253d33a9565ed0fc3580525225b95733bd3782a806
2022-05-25 02:32:11 +00:00
stephan 80bf86967f fiddle: added support for exporting (downloading) the current db file. To do this we had to fall back to named dbs, instead of defaulting to an in-memory one, but the virtual filesystem is an in-memory FS, so the end effect is the same.
FossilOrigin-Name: 7c7fd34c8a05832a3973aaffe696250cb4d2a0b1646c9bfbe83970daf33cd817
2022-05-24 22:16:12 +00:00
stephan de1e02ee52 fiddle: initial work on loading a client-side db file. Works but requires some cleanup. Export is not yet implemented.
FossilOrigin-Name: 0fa8378c006fcf2311772d36cf2e3c2cd8e8648f671de89ee9832e2e1a06ef49
2022-05-24 19:01:21 +00:00
drh 6af03b469e When an ON clause on an INNER JOIN references a table to the right of
of the join, just convert the ON clause to an ordinary WHERE clause term,
in order to be compatible with older versions of SQLite.  See
[forum:/forumpost/687b0bf563a1d4f1|forum thread 687b0bf563a1d4f1] for details.

FossilOrigin-Name: 2b6ebba26d936ae7b9acf7d4bd15e82cbfabda22e1044b3dd838c7b07095100e
2022-05-24 16:05:41 +00:00
drh 51e5d447ba Add an assert() to clear a harmless static-analyzer warning.
FossilOrigin-Name: 919ba2f0472e12c2d1e82364c1481e778b24ea406615b08992964a4eb80abee7
2022-05-23 11:51:10 +00:00
drh 40822eb262 Defer materializing a view or subquery until the materialization is actually
needed, so that if it is not needed, not useless work is performed.

FossilOrigin-Name: 16bf350683fd6ac906dbd02b21fb8bf1b1014ed05594cacf108645acd383ae65
2022-05-21 18:03:33 +00:00
drh 660dfbdcfb Fix a typo in a comment.
FossilOrigin-Name: 34d7045b2cc8ef16fd4115499888703a376d2c3a289e7fdd117f8341ffa586c3
2022-05-21 15:54:45 +00:00
drh b800bd63aa Use the newer OP_BeginSubrtn opcode instead of OP_Integer to start the
subroutine used to matrialize a view.  This does not change execution but
does make the byte code a little easier to read.

FossilOrigin-Name: cebd4fd606f967de527cff79df8e80e16d06eec257939322f16d21303868fb4d
2022-05-21 15:12:41 +00:00
stephan 4257373f6d fiddle: refactor into main thread (UI) and worker thread (wasm module). Added bits needed to support triggering sqlite3_interrupt() but do not yet have a second SharedWorker to test it with.
FossilOrigin-Name: 5ff3326856bc190cee15a5fca5ded89aacc4bf931a8df98726a872b310e2a4fc
2022-05-21 14:19:05 +00:00
stephan 2eb454147a In the shell WASM build, call open_db() early so that we can get access to the global db handle from certain experimentation-only function without having to first run some SQL code.
FossilOrigin-Name: 31706ef851f7d55e2fe865933ec03f42dfa8b49e6d1f12b6c016b5c1d3460504
2022-05-21 00:01:45 +00:00
stephan e26d162402 #if'd out the '.nonce' and '.check' commends in WASM builds.
FossilOrigin-Name: 326f79ea54566a9302be99d920856f13b48f2c2ed265fa87d78ced367d4b1946
2022-05-19 22:04:23 +00:00