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Commit Graph

1237 Commits

Author SHA1 Message Date
drh
82fc1b63f6 Work around LLVM's newfound hatred of function pointer casts.
[forum:/forumpost/1a7d257346636292|Forum post 1a7d257346636292].

FossilOrigin-Name: ec0ae4030968c782af48d1c776351c14b2ada21d40aeb97915f33df30706e18f
2023-12-06 18:25:41 +00:00
drh
768b6e32f6 Remove a NEVER that can be true if a virtual table column is declared to have
a DEFAULT.  See
[forum:/forumpost/3d4de8917627d058|forum post 3d4de8917627d058].

FossilOrigin-Name: 8abc2ccaf8106f20243568cd7fa74174386eb85d7ea381201e97e2fd527033e0
2023-12-02 12:23:34 +00:00
dan
94331d406a Handle the case where a virtual table xBestIndex method called while coding a trigger fired by a top-level statement with a RETURNING clause prepares a statement that also contains a RETURNING clause.
FossilOrigin-Name: ec6bffa3b0fbf7cdee852cb0208de1f5869dafd88e2ee64c23cec89634219adc
2023-10-26 16:05:57 +00:00
drh
9132b8816a Earlier detection of a host of errors in CREATE TABLE, such the CREATE TABLE
statement itself fails, rather than generating an error on the first attempted
use of the created table.

FossilOrigin-Name: 348fa7aaf7958b3fb689ed023d946064ae8d92718a497a346e95114a2410cbf5
2023-10-13 22:19:23 +00:00
drh
af527231c1 Immediately fail a CREATE TABLE statement that attempts to create a
table that has a generated column loop.  Legacy allows the table to be
created but the table would not be usable for anything.

FossilOrigin-Name: 3237bf964117c1ef71143042837ef21872bb3d04bfd682075672e768953ec802
2023-10-13 13:49:46 +00:00
drh
00eee7a786 Remove an unused parameter from the recomputeColumnsNotIndexed() routine in
order to squash a harmless compiler warning.

FossilOrigin-Name: 9bf4bfd68080367b58594e0d44b110b3ee9766420f648537fd7bc638dacefb72
2023-10-06 12:55:53 +00:00
dan
7a9bbfe1fa Avoid an error when parsing a schema that contains indexes with WHERE clauses containing unknown collation sequences.
FossilOrigin-Name: d5dd39e37ab994ce5d75688a40c6494c17807431529e85eb2b11d58f367fe232
2023-09-23 19:25:03 +00:00
dan
c18c7523a4 Fix a failing assert() caused by changes on this branch.
FossilOrigin-Name: d0e21f20bd8643d21c4b88fb75b83939d68e9b7118f7289a164656f11d2ee555
2023-09-23 18:52:22 +00:00
dan
bd42642431 In partial index scans, if the WHERE clause implies a constant value for a table column, replace occurences of that table column with the constant. This increases the likelihood of the partial index being a covering index.
FossilOrigin-Name: 66ed7abdfa228abde2052e3988589371f0e49b11582b1b4a83255d2df3a0aefa
2023-09-22 20:21:27 +00:00
dan
ef2e43304e Remove out-of-date comment regarding use of Parse.pConstExpr.
FossilOrigin-Name: 71548f72ad578db3d6ee409956386ace23ab2258d37cdc29ef2fb126e48f1ee3
2023-09-09 17:53:55 +00:00
drh
40ee72947e Omit unnecessary calls to table locking routines in the common case when
there is no shared cache.

FossilOrigin-Name: f94f3021cde1d46373ee8fc8e5028d7507a937240c59cf0d0d19ab22acbd3c41
2023-06-20 17:45:19 +00:00
larrybr
55be21647e Fix straggler misspellings and tidy the custom dictionary. Also include pickups from [forum:/info/c61fb09afd|forum post c61fb09afd].
FossilOrigin-Name: 8c291d99946eb32b20b743921202f9c7cfb716268ff526817b27adbb7942e40b
2023-06-07 17:03:22 +00:00
larrybr
bc91738e66 Add a C-source spell-checking facility. make misspell (on Nix)
FossilOrigin-Name: 26c1bb4bd9e9f56613c3aa87407a7f562fd4ebde5bfd6dece02078001d9a45f8
2023-06-07 08:40:31 +00:00
drh
60fd5c34ab New assert() statements to verify that Expr.iColumn is never used as an
array index when its value is negative.

FossilOrigin-Name: 6084c5fb6d3fcedf35cd6c597a44ec7bf8b4a2576c7b277e5342d2a7905318e7
2023-05-17 15:46:46 +00:00
drh
e030619109 Updates to compile-time option usage and especially to the compile-time option
test script in tool/omittest.tcl.

FossilOrigin-Name: fece588b186c4f9f76d626313e35336fd5681e966e9bd0fa1053b147c4e3c315
2023-05-05 14:16:31 +00:00
drh
a84ead119e Fix assert() statements that would (incorrectly) fire if an IF NOT EXISTS
trigger that already exists contained two or more RETURNING clauses.
Tickets [89d259d45b855a0d] and [d15b3a4ea901ef0d].

FossilOrigin-Name: 648899e4ded72cac6cc24bccf7ebfc709ee7309a003452b21fd6ab0ba20c34b8
2023-03-17 00:01:32 +00:00
drh
cad225d6fc Fix a bug introduced 4 days ago by [e95439119ac200cb]: do not set the
Expr.affExpr field of a generated column expression if the expression is a
RAISE() function, as affExpr has a different meaning for RAISE.
[forum:/forumpost/b312e075b5|Forum post b312e075b5].

FossilOrigin-Name: 1096b5a7cc8104db01f8820ace47020baad2f12e6711e3a7b4514ed1becc7b66
2023-03-07 23:47:38 +00:00
drh
294872382b Follow-up to [e95439119ac200cb] to fix a case where a pointer is NULL due to
OOM.

FossilOrigin-Name: 2535bc8c256a7642a6ac00ebfd3393beb93da94394c13b886c3ddd20d114aa3c
2023-03-03 19:43:39 +00:00
drh
dc81902445 Do not use an expression index on a generated column if generated column
has the wrong affinity.  dbsqlfuzz 65f5eb57f8859344d5f1f33e08c77ee12960ed83

FossilOrigin-Name: e95439119ac200cb47d0e277622f41ee7986b364487cd252b485ce5fa030d70f
2023-03-03 15:12:46 +00:00
drh
12e1eb344f A call to sqlite3_declare_vtab() should not cause DML/DDL authorization
failures.

FossilOrigin-Name: eed1e030722deb24674e7c2d165a2a359576c6bb5769d3bdd5fa645bc0f2ecc7
2022-12-29 18:54:15 +00:00
drh
3547e4997f Fix lots of harmless, nuisance compiler warnings, mostly unused parameter
warnings in extensions.

FossilOrigin-Name: c14bbe1606c1450b709970f922b94a641dfc8f9bd09126501d7dc4db99ea4772
2022-12-23 14:49:24 +00:00
drh
fe83892bc1 Ensure that the expression of a virtual column really is an expression and
not just a reference to another column, as a real expression is necessary for
the indexed expression coverage optimization to work properly.
[forum:/forumpost/07b36e3899a9ae21|Forum thread 07b36e3899a9ae21].

FossilOrigin-Name: 40549bacb3923e439627b0103bedd7da30258b69a46960040f7176e060f51f2f
2022-12-21 14:13:49 +00:00
drh
00d6b2755f Create a new affinity called FLEXNUM that works like NUMERIC except that it
never tries to convert integer to real or real to integer.  The affinity is
only used internally - it is not possible to create a table column with this
affinity.  This affinity is used on subqueries and views that are built off
of a compound SELECT and where the datatype is controlled by a CAST expression.
dbsqlfuzz c9ee6f9a0a8b8fefb02cf69de2a8b67ca39525c8

FossilOrigin-Name: 44135d6ea84f7ba6b36549954b38a8bc048d5ffea5a9779e35950afa4eb2dfb2
2022-12-15 20:03:08 +00:00
drh
9e66087a49 Refactor the sqlite3SelectAddColumnTypeAndCollation() routine. Improved
comments.  Now called sqlite3SubqueryColumnTypes().

FossilOrigin-Name: 4dfb1b450b87e2c6207c83c102b785781d1dbdeadbeeab6a83f96d58bb96cfbf
2022-12-13 15:54:43 +00:00
drh
5723c659fd Clarification on the meaning of SrcList and SrcItem and especially the
SrcItem.colUsed and Index.colNotIdxed fields.  Comment changes only - no
changes to code.

FossilOrigin-Name: d96f6cc8475ae5509b8bff2db75e3c6f69a214d58d8979fbc0162ae488a040dc
2022-10-22 13:49:35 +00:00
drh
08535840c6 Get the indexed expression optimization working for virtual generated columns.
FossilOrigin-Name: 8a510cb0880349370ad19b0852f270ca072bff7871f0dc272964af31c32a7c37
2022-10-17 14:30:01 +00:00
drh
4bc1cc1847 This experimental branch attempts to use columns for an index-on-expression
in place of the expression that is being indexed.  This particular check-in
mostly works, but there are still issues.

FossilOrigin-Name: 2e8d4fd4cfd9e82f33c707ba246fe2bb3ca01762cf5ac5905058fbc7adf0abe7
2022-10-13 21:08:34 +00:00
drh
7424aeff41 Replace the Parse.disableVtab field with Parse.prepFlags for increased
generality, a small size reduction, and a small performance increase.

FossilOrigin-Name: b7da0bcdf70e53ab1ec00a0694e17c7429e23bc6eb3f39b622d06a930aa2f6a3
2022-10-01 13:17:53 +00:00
drh
41ce47c4f4 Add the new internal interface sqlite3DbNNFreeNN(db,ptr) where both the
db and ptr parameters are guaranteed to be non-NULL.  Use this where
appropriate to save more than 2 million CPU cycles on the standard
performance test.

FossilOrigin-Name: e5eaa80e81fdf86f2875a912b880272b8d099b82b08e945a7988c5dd0fe9d6b5
2022-08-22 02:00:26 +00:00
drh
626bcc88dd Allow the name of an index to collide with a table in a different schema.
FossilOrigin-Name: f963c2523872b59b8a7a14971f703f2eb0d021501b288597a958f6596885d0de
2022-08-09 16:13:21 +00:00
drh
509a6303d1 Performance optimization by only invoking sqlite3FkCheck() when it is actually
needed.

FossilOrigin-Name: 98b0e830bc7effa3c9cbb77aebe7c128afc3b210af336b7516108d6435705ba0
2022-07-25 23:01:41 +00:00
drh
ef69d2b277 Performance optimization in sqlite3ViewGetColumnNames().
FossilOrigin-Name: 390717e68800af9b71acd635cf6cb123f9a591276df511f11462b42960f9a70c
2022-07-25 22:31:04 +00:00
drh
f89812fe52 Fix a harmless compiler warning.
FossilOrigin-Name: 9aba7417c60b30b44c051580f0f997a4d2fc86bc811b532d175305ad4c181fc6
2022-07-25 22:02:35 +00:00
drh
7bace9e9bb Simplifications to sqlite3FinishCoding() for a small size reduction and
performance increase.

FossilOrigin-Name: a995614b9aedf4492e6d7b777293770f268837f8246e1678ef0523738c8a8339
2022-07-23 12:51:48 +00:00
drh
3dedb87bd7 Remove a branch that is no longer reachable due to the previous check-in.
FossilOrigin-Name: 8b4d1b9317624f443fe526858bfe3da5281ba83de1828c62935f48b3e7cf2a88
2022-07-23 00:53:48 +00:00
drh
cd9e863079 Ensure that the Parse.nErr flag is set following an SQLITE_TOOBIG error on
a nested parse.  Fix for the problem identified by
[forum/forumpost/d5a82ba9eedee30c | forum post d5a82ba9eedee30c].
Also, remove unnecessary clearing of the Parse.zErrMsg field
following a nested parse.

FossilOrigin-Name: 44d77a7f807f5dc3e94e6cd88a27bea79257f0f2ccf332891bdaa4668d0bb987
2022-07-11 14:36:03 +00:00
drh
d88fd53989 Organize the various flag bits of the ExprList_item object into a substructure
so that the whole lot can be copied all at once.  Faster and smaller code.

FossilOrigin-Name: 5341d4bbe9a943f9cdbbdea829e18f108e98972ebb706396c50fc62fcc6a6328
2022-05-02 20:49:30 +00:00
drh
7f417569f7 Avoid unintended side-effects on Parse.nSelect in the
sqlite3ViewGetColumnNames() routine.

FossilOrigin-Name: 59789fe1e745bb6f81898176e7e9c6064ac9f4bbefb4dc3c8f3e4c1379568f69
2022-04-25 14:49:48 +00:00
drh
1a6bac0d2f Remove NEVER() on branches formerly thought to unreachable
(see check-in [71272caff5874137]) in order to fix the first bug reported
by [forum:/forumpost/28821db852|forum post 28821db852].

FossilOrigin-Name: bd6811d8110d5f00596e2eff6d4b02af8b6d8557d41990e6f50518ead0fa01fb
2022-04-25 10:43:19 +00:00
drh
6dab33bf40 Fix harmless compiler warnings.
FossilOrigin-Name: 29255664127a975e5b0d5767cd4e56d93ff2ea1994702cdfbdca1b700952502e
2022-04-21 19:25:51 +00:00
drh
815b782e99 Improved tracking of nested SELECT objects used to implement
parenthensized FROM terms.

FossilOrigin-Name: 0da2232624571f4020c05d775ea518514d748fba8dacd4caba2e2e6ed1ae399f
2022-04-20 15:07:39 +00:00
drh
f80bb195b3 Disable the unused EU4_EXPR mode for the IdList object.
FossilOrigin-Name: 5bcf4aa3bf6b1b9f47142bc37683bb3bf0adeffd052d07449af7c9b415add052
2022-04-18 19:48:31 +00:00
drh
d973268ccf Fix the sqlite3SrcListAppendList() routine so that it correctly adds
the JT_LTORJ attribute to the first SrcItem, if needed.

FossilOrigin-Name: 07ed0dca310d828f9fe152efa8ee2a89202771a8f661afa1dbeee34aaabef67a
2022-04-18 10:09:29 +00:00
drh
052953a4e6 Fix the USING to ON translation so that it works correctly for a sequence
of two or more joins where one of the joins to the right-hand side of the
list is a RIGHT or FULL JOIN.

FossilOrigin-Name: 9ffc2b231956cde1bc90519aa174b0e2dc30ef671ed745f4f3ffa9fbb7ffab4b
2022-04-16 22:57:41 +00:00
drh
fdc621aece Since the query planner is unable to cope with a LEFT JOIN on the left-hand side
of a RIGHT JOIN, detect that situation early and raise a parsing error.
This is a temporary measure that needs to be fixed.

FossilOrigin-Name: 6d5d6e0403241c99ab4a47d7b6eedcd8ebc615a8ca8d66d7e81171f901b170d7
2022-04-16 19:13:16 +00:00
drh
a99e325468 Enhance the IdList object to exist in a single memory allocation (rather than
a separate allocate for the base object and the array of IDs).  Also permit
an IdList object to store an Expr pointer together with each name.

FossilOrigin-Name: 40f3c95871e6f40f287ef2756abafb8fc56dffdd0af69436e5c7d8e95022d94e
2022-04-15 15:47:14 +00:00
drh
62ed36bb5d Minor improvements to the sqlite3SrcListShiftJoinType() routine. This started
out to be an effort to convert RIGHT JOIN to LEFT JOIN if the join was on
the first pair of relations, but that messes up the "*" expansion and so won't
work.

FossilOrigin-Name: a48902c71ed30c83de7dbd26d1c7956136c35dc53b1076bc8b1ebcba568a3fd3
2022-04-10 20:28:41 +00:00
drh
a76ac88af8 Preliminary code to support RIGHT JOIN. Everything seems to work, except that
the code to compute the unmatched rows for the RIGHT JOIN has not yet been
added, so the result of a RIGHT JOIN is currently the same as an INNER JOIN.

FossilOrigin-Name: 415abd6731b8e8a605adabfa6066c8a852a8531c300df41325d5f7e75cae5a70
2022-04-08 19:20:12 +00:00
drh
d44f8b2385 Improved technique for parsing the ON and USING clauses of a join is faster
and uses less memory.

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2022-04-07 01:11:13 +00:00
drh
66f58bf38d Small size reduction and performance increase in sqlite3FinishCoding().
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2022-03-30 17:36:40 +00:00