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cfc62ceefdfb19ed162b725cdca30fdea6a055e0
Commit Graph

303 Commits

Author SHA1 Message Date
drh
d718bde6da Do not allow an ALTER TABLE ADD COLUMN on a STRICT table if the added column 
contains a DEFAULT clause that would violate the type of the added column.

FossilOrigin-Name: 75b075863eaa56e36635a1d27740d37de8600ba92099b3fad9378a1e6ce12c0e
 2023-10-14 20:24:52 +00:00
drh
56a410741b Address various harmless compiler warnings from 
[forum:/forumpost/d526da8ee4|forum post d526da8ee4].

FossilOrigin-Name: 365caf2f97e8f15842f52536e8d05d359e9d6e863182e020ce14a9a9f27ee057
 2023-06-16 14:39:21 +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
731a1aaeb2 Fix an obscure issue with ALTER TABLE RENAME that comes up with triggers 
that have UPDATE statements that contain errors.
[forum:/forumpost/ff3840145a|Forum post ff3840145a].

FossilOrigin-Name: c4845a7c5f7f219848d3ee32eef0f9c69ad6dc6e8509da84d612f41e1e05f007
 2023-04-13 18:44:59 +00:00
drh
de5f3af2b9 Additional fixes for yet more completely harmless compiler warnings. 
FossilOrigin-Name: 7d3772f0bd0e2602fe919573b49001da4e2b9f3874cb0183dea675204afa7abd
 2022-12-23 11:46:57 +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
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
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
d44f8b2385 Improved technique for parsing the ON and USING clauses of a join is faster 
and uses less memory.

FossilOrigin-Name: 158156a3e3d50042cafc75dea3aaaa68b1f2efb9c3d178518ea6e68e32e0d21c
 2022-04-07 01:11:13 +00:00
drh
fde3043200 Stronger defenses against corrupt schemas in the ALTER TABLE logic. 
FossilOrigin-Name: 13fbde28173332522a7ad307c1aad2b83c9aa1fe737583afa2b29f6da4de6370
 2022-03-10 21:04:49 +00:00
drh
4e532958c1 Provide sqlite3_error_offset() data for some new errors. 
FossilOrigin-Name: 1269206db810460e55a52e178ba3332add42a11f66c5f292f8f0d29ccd61a4b8
 2022-02-08 13:41:23 +00:00
drh
89e9baa2ca With the new ALTER TABLE under PRAGMA writable_schema=ON processing, do not 
ignore non-parser errors such as OOMs.

FossilOrigin-Name: 36653ccef68cf61b6001000a713b06e951cb6fddced6b6a906c3b17d70a8af87
 2022-02-06 21:13:59 +00:00
drh
569c10566e Fix a NULL pointer dereference that can occur after OOM. Problem 
introduced by check-in [197cbabf1767d060].

FossilOrigin-Name: d4e6b9f0f7567b76760a667a701bca4d6158ade39f9a69d205b583c5a1c0c7f4
 2022-02-05 12:05:43 +00:00
drh
10d29c7a94 One more case of disabling errors for ALTER TABLE RENAME when 
writable_schema=ON.

FossilOrigin-Name: c52d0dd8f4f8fab4c3f33cbd26b4012569e76562282e85654018c836dca7b564
 2022-02-04 20:07:24 +00:00
drh
5a80050dd3 Allow ALTER TABLE RENAME COLUMN to proceed even if there are errors in 
the schema, as long as PRAGMA writable_schema=ON is active.

FossilOrigin-Name: 197cbabf1767d0603928462fb75cf8100f6999f725e0db60d096c7ca20e3da28
 2022-02-04 16:43:30 +00:00
drh
0c7d3d399d Remove many redundant checks for sqlite3.mallocFailed now that any OOM should 
cause Parse.nErr to be non-zero.

FossilOrigin-Name: 1f7fa46126ea33ed30e93186aff3df51068aeb4be6f79a102bfe8c4e44941d71
 2022-01-24 16:47:12 +00:00
drh
c692df2784 Make it so that any Parse object is always linked into the database conenction 
while it is active.  Hence, an OOM will cause Parse.nErr to be set.

FossilOrigin-Name: 6a45d8fe8bfbc11a5b86d25237e1f8bccfb0f22f3dcaf004ba797aeb57b365ec
 2022-01-24 15:34:55 +00:00
drh
85b70e009f Fix ALTER TABLE DROP COLUMN so that it invokes the authorizer. Fix for 
[forum:/forumpost/fd82b85947541dec|forum post fd82b85947541dec].

FossilOrigin-Name: aca6c61d79215519fb006af19d9011029df68f195a4ce65aff7a1bf4e36efb94
 2022-01-18 16:16:32 +00:00
drh
72e30421c8 Fix ALTER TABLE so that it works even when compiled using -DSQLITE_DQS=0. 
[forum:/forumpost/3c1a00b66fca81fe|Forum post 3c1a00b66fca81fe].

FossilOrigin-Name: 092ad64faa4ae93b1e09ccd52159621d619e6817bcb4573331e9053d97f731fd
 2022-01-16 15:15:39 +00:00
drh
54bc63815a Simplify the sqlite3RunParser() routine by omitting the third parameter. 
Results in a binary that is about 100 bytes smaller and 1.4M cycles faster.

FossilOrigin-Name: 6fb2a1bb0280d6e31291e3fd06bbcbbb28ef5fb27d3898e2327a50ac738ae1f3
 2021-12-31 19:20:42 +00:00
drh
a4a871c286 Show the preferred schema table names in the output of "PRAGMA table_list". 
FossilOrigin-Name: 9147390d9885a37a62edc1058f313434627f1b59965c890877d2cb119e355c78
 2021-11-04 14:04:20 +00:00
drh
ac894af85e Improved the error message that results when a schema parse fails after 
ALTER TABLE ADD COLUMN.

FossilOrigin-Name: b007a39dd3a46d13fe06f2a1eeb4e3fd4cad1a77892be6d175b31db1edd6f6a8
 2021-11-03 15:59:17 +00:00
drh
61a8ad7cf9 Ensure that ALTER TABLE RENAME recognizes OOM errors while parsing 
dependent triggers and handles them appropriately.
dbsqlfuzz 53e245eee15d3f19639d773048aa955c30708785.

FossilOrigin-Name: 1d9004cd015073853ce0ca811a68ea5411733eedee993b97a38a42ba139d7590
 2021-11-02 17:55:01 +00:00
drh
0fbc19eabd Remove an incorrect assert() added 4 days ago by check-in [9e2f06b84f994277]. 
Replace it with a testcase() macro.

FossilOrigin-Name: 03dff7196bb00f8e32f574f65745ceafb33ee3fdd169263121342859c362eca5
 2021-10-17 10:31:09 +00:00
drh
febf0352cd Remove a NEVER() macro in ALTER TABLE due to an 
obscure case of a nested CTE inside an UPDATE within a
trigger.  dbsqlfuzz e89174cbfad2d904f06b5e24df0a22510b6a1c1e

FossilOrigin-Name: 9e2f06b84f9942772c30bed2ac71b3296c9adf9661dbf8916d56996253ee8d28
 2021-10-13 14:01:44 +00:00
drh
477572b9f1 Protect access to the Expr.y union using nearby assert()s and branches. 
FossilOrigin-Name: 87e2f5eb436fc448427b0e24fb70f29688796b513b8c7b12f1a21540dae1e56d
 2021-10-07 20:46:29 +00:00
drh
78b2fa8610 Protect every access to the Table.u union using a nearby assert() or branch. 
FossilOrigin-Name: 50e08338aed7ac0cee600098d2ecd4b3b7bfd31a597bb26773badf3d2e2582c8
 2021-10-07 12:11:20 +00:00
drh
0019774e78 Add NEVER() macros on branches that are not reachable since [a0df216f7c3f8963]. 
FossilOrigin-Name: 5d771f3554f3c98872cd0c9f12f415e685f26fcb923e3fb7f1a7a760c7a53255
 2021-09-29 20:17:19 +00:00
dan
a7f7c1c4af Fix a potential ALTER TABLE problem with expressions like ( (<sub-select>) IN () ). 
FossilOrigin-Name: df0d7e36dbf98ab5405d8366ce92fb85176d4388b47a57b0ca1aa1ba6ae5212e
 2021-09-28 10:44:54 +00:00
dan
5a69d19eea Fix a problem in ALTER TABLE causing table or column references in sub-selects ton the RHS of a vector SET clause in an UPDATE within a trigger (i.e. "SET (a,b) = ( (SELECT...), <expr> )"). 
FossilOrigin-Name: 255b0eeed113d83b474efc5bc8fc790a270bc43ee598df4b2c378e1ad2d729b7
 2021-09-27 15:44:03 +00:00
drh
b6dad520e5 Add lots of new "const" on internal function parameters. There is opportunity 
for many more - this is a work in progress.

FossilOrigin-Name: a3c71a673ddd1c299bdae550fb955077b77088329a8ca2895dfb23538b524a8e
 2021-09-24 16:14:47 +00:00
drh
e73e957c1e For ALTER TABLE RENAME COLUMN, do not try to filter virtual tables out of 
calls to sqlite_rename_column().  Let the function filter them itself.
The WHERE clause can mistakenly let virtual tables through if the
sqlite_schema table is corrupt.  The sqlite_rename_column() function must
deal with them.  We might as well let it deal with them always.

FossilOrigin-Name: 7c82b43b7cdb825f431d3a778f8b34e32666ccb3b067f1f2533d3b3dcca7bdc9
 2021-09-16 13:20:29 +00:00
drh
65b400931d Store the collating sequence name for each column of a table as an 
extension to the column name, for an additional savings in the heap space
needed to hold the schema.

FossilOrigin-Name: 832ac4c1ee384be0de72a4bdd55ed87e0f8294e7df5eefcf6b4942db3d85a69e
 2021-08-05 15:27:19 +00:00
drh
3edc927ecd Always prefer built-in SQL functions over app-defined SQL functions within 
sqlite3NestedParse().  Formerly this was the case for a few calls to
sqlite3NestedParse(), but not for all of them.

FossilOrigin-Name: 164662ef01ad45ca570c44631a1117cccce6e34b00dbba7f422c089e8ffaa932
 2021-08-04 13:42:12 +00:00
drh
cf9d36d1b3 Refactor field names in the Column object, zCnName and zCnColl, to make them 
unique and thus easier to find amid all the other code.

FossilOrigin-Name: 8b781dcaf68e0cf12a844708c82eee00193e340195cbca915d077e4846983bf3
 2021-08-02 18:03:43 +00:00
drh
f38524d20d Refactor the Table object to reduce its memory footprint. 
FossilOrigin-Name: bbb6759bcf6e01d36dfc787a82a610d359f50aaeac8104b73883a84906d54e1f
 2021-08-02 16:41:57 +00:00
drh
79cf2b7120 Refactor the way that DEFAULT expressions are stored on columns, in order 
to save memory in the common case where the column has no DEFAULT clause.

FossilOrigin-Name: 8646547e54211d44c415663c33775c4268550f8332949c4731a4bb6ec9cc663a
 2021-07-31 20:30:41 +00:00
drh
55b8b73e74 Fix ALTER TABLE DROP COLUMN so that it generates valid bytecode even when 
operating on a corrupt database and using PRAGMA writable_schema=ON.
dbsqlfuzz 5f09e7bcc78b4954d06bf9f2400d7715f48d1fef

FossilOrigin-Name: b65f4f763979ee9e0b943c787609ea22d6f7e01d41dfc1e084ec50a085a3550c
 2021-07-22 18:22:51 +00:00
drh
0f91a5352b Fix issues in the new ADD COLUMN constraint checking. Add preliminary 
test cases.

FossilOrigin-Name: 48434ad3fa9504c063d812d119bc8f622548fd02b3d478ff247b11474c4ce5db
 2021-07-20 08:23:54 +00:00
drh
b4d9b2b537 Demonstration code to show how NOT NULL and CHECK constraints can be 
verified after an ALTER TABLE ADD COLUMN.

FossilOrigin-Name: 039f540373b03af9e0c87499e5e0423eb093d1d343829282a5ac1de2d600b881
 2021-07-20 07:35:07 +00:00
drh
236bcdf3e4 Enhanced defense against integer overflow in ALTER TABLE. 
FossilOrigin-Name: fb7f094e4e0f03622c2e7fa02483c17671a8899c7ad8aba8659177180f406704
 2021-06-16 11:32:54 +00:00
drh
11e489d6cb Fix typos in testcase() macros from check-in [c09d90eec2a49b94]. 
FossilOrigin-Name: d4d9869c30710914b7ba51221b2c2223a9cf16b913bd6f3866ae747494a116af
 2021-06-14 20:49:33 +00:00
dan
ac67f56726 Fix an ALTER TABLE problem with handling infinite loops of CTEs in the database schema. 
FossilOrigin-Name: c09d90eec2a49b948c60971294d146db5c82438855cd3fa48ddc3d2e6b44c26c
 2021-06-14 20:08:48 +00:00
drh
24ce9446a8 This is an alternative approach to the use-after-free problem fixed 
by [193b14a58e378ab3], saved here for historical reference.

FossilOrigin-Name: 6796b7a2485eca279db9d777595a886bc0d1dd7ec9551e1797e0032ef5493559
 2021-06-12 17:45:32 +00:00
drh
35e6cd09f2 Reapply two recent ALTER TABLE error checks that turned out to be necessary 
after all.  dbsqlfuzz fc5a9deefda00dda914748985155a6d4c44174e5.

FossilOrigin-Name: 230fedd923c87741d20caf55f29e8464cc6df344536f9b89331e0a0059a926f7
 2021-06-11 13:18:56 +00:00
dan
d03d3a9b74 Fix a crash in new ALTER TABLE code that could follow an OOM. 
FossilOrigin-Name: 6f1f2a0a9cd75ca43b81cc325296b843ccefe6f8040da8f2e873f49928423f10
 2021-06-11 12:14:58 +00:00
dan
6065686d9c Remove an unreachable branch added by the previous commit. 
FossilOrigin-Name: 852ee0e91ceae090157c4ab2805530f5d7985a490ce77f54d7b148f56e466f79
 2021-06-11 12:02:00 +00:00