database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-11 01:42:22 +03:00
Code Activity
27,999 Commits 1,607 Branches 185 Tags
378bf82e2bc09734b8c5869f9b148efe37d29527
Commit Graph

734 Commits

Author SHA1 Message Date
drh
7b4b74acc7 Do not allow the xfer-optimization to move the content of an ordinary 
table into a strict table.

FossilOrigin-Name: 1ed1b594d3c03ced68eb2b1285dfd8b9641cda20db1b1b7ae1afee217a3a9fe2
 2021-08-20 01:12:39 +00:00
drh
71c770fbda Improved comments. Fewer opcodes for integrity_check on strict tables. 
FossilOrigin-Name: 4ee57fb588b41ab76649c605f57c7bcf5b7b638435af458d69f69a8ccbb121e8
 2021-08-19 16:29:33 +00:00
drh
72532f52bc Trying to insert an incorrect datatype into a STRICT table raises an 
SQLITE_CONSTRAINT_DATATYPE error.  Seems to work, though lots more testing
is needed.

FossilOrigin-Name: a19305e5cfedf5c472200d6e05c1396443e348f052a40a0979f860f2ff06851d
 2021-08-18 19:22:27 +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
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
24384d88d6 Fix a (harmless) typo in a comment. No code changes. 
FossilOrigin-Name: d2b9b8daa3b87c3dba1329e2f2f44b60d6b5bb9a49d741045aa20cc7813446b2
 2021-07-03 18:57:40 +00:00
drh
0003d87893 Add NEVER() to a branch that is no longer reachable due to 
check-in [a1d823f6879ce1ac].

FossilOrigin-Name: 5fda21feda2448de880088f4f53f20875ef02b47172c48091638b80173f983d7
 2021-04-11 00:11:56 +00:00
drh
6e5020e8da Also prohibit the use of rowid from a subquery. Add the 
SQLITE_ALLOW_ROWID_IN_VIEW compile-time option to restore legacy behavior
in case somebody actually needs it.

FossilOrigin-Name: 14b1d56ef84b0e62b7f9c4e5f7f985ca10e770c8db59f54004ad892c2a2dcbfb
 2021-04-07 15:45:01 +00:00
dan
11fbee24b6 Silence an msan warning triggered by a corrupt database by initializing a local variable in sqlite3Insert(). 
FossilOrigin-Name: f64deecee1691cf21b4f3d27d8490ecc8eae65cf26df7a22f8d15317f0cecd5b
 2021-04-06 16:42:05 +00:00
dan
2a1aeaa36e Handle "RETURNING rowid" clauses attached to INSERTs on views without causing an assert() to fail. Fixes dbsqlfuzz crash 0081f863d7b2002045ac2361879fc80dfebb98f1. 
FossilOrigin-Name: 9c5b7386d013a7f22a93c69722c4648e2ab60eef180f48b5470bfea6fa74b3da
 2021-04-06 13:53:10 +00:00
drh
e3e8f5ce9c Merge recent fixes from trunk. 
FossilOrigin-Name: 4a343698b4ec3364b0eecb7fa074512ecac8b586aff1f977ca77f215e96e0ce5
 2021-03-22 18:53:26 +00:00
drh
d01206ffc2 Fix an assert() that in preupdate-hook logic (not normally built) that 
can be false when running VACUUM on a corrupt database file under
PRAGMA writable_schema=ON.

FossilOrigin-Name: 6bb2134027a12801de8e0c73482d94682f902024800a7e426614f65a2fe4f64c
 2021-03-21 18:23:48 +00:00
drh
d218decec5 Merge enhancements from trunk. 
FossilOrigin-Name: d192d737755876293a2914fcb9a0d5efbe07f3cd281c038666ea5aa879c06321
 2021-03-19 19:09:24 +00:00
dan
93eb906488 Fix a crash that could occur when an INSERT has more than one ON CONFLICT clause, at least one of which contains an unresolvable symbol. 
FossilOrigin-Name: 74208386508012326a0e88ec5b4a995d1b99607720bb05785a01c2d89ea03543
 2021-03-19 14:26:24 +00:00
drh
a979993b25 Improved labeling of EXPLAIN QUERY PLAN output. Many test failures due to 
the different output format.

FossilOrigin-Name: 6f8faec0222a7ca07cc1a5ed16cc08d92c6e20bbcb34851b4eff9e624de53601
 2021-03-19 13:00:28 +00:00
drh
7601294ad3 Rename the "struct SrcList_item" object to the more succinct "SrcItem". 
This is a symbolic change only.  The logic is unmodified.

FossilOrigin-Name: bfd5bf2c73110fcb36db9ba2a949ff516131fbd3e89325f88fe9f5c2b4ed87b2
 2021-02-21 21:04:54 +00:00
dan
a55a839ab3 Avoid invoking the update or pre-update hooks during VACUUM operations. 
FossilOrigin-Name: 3c25cb4ab8885a50e2a485fe76f5ffd5dd8ebe1306aca8c0989e0b7fd7dd18d2
 2021-02-18 15:59:37 +00:00
drh
6f6e60ddb1 Improvement to the INSERT optimization of check-in [16ac213c57196361] so 
that it works with SQLITE_ENABLE_HIDDEN_COLUMN but is also easier to maintain
and a little faster as well.

FossilOrigin-Name: f985a78ecc0c6d9ff671c730a109d97dc781b06e47a0ab03f441cea5d021a4c3
 2021-02-18 15:45:34 +00:00
drh
39065807dd Disable the optimization of [16ac213c57196361] when the 
SQLITE_ENABLE_HIDDEN_COLUMN compile-time option is used, as the optimization
does not work in that case.

FossilOrigin-Name: 5168b06bcf283ef64cb9fd76330a743baf8bb0cd747c14eae23e607e0491cbce
 2021-02-18 14:27:43 +00:00
dan
fadc0e34be Ensure that the pre-update hook is invoked for INSERT operations on WITHOUT ROWID tables that use the xfer optimization. 
FossilOrigin-Name: 66bbad239b4527ac8ae8b487a0c71d88b1861a8dfe1edc25109600dc447c60c4
 2021-02-18 12:18:10 +00:00
drh
c7e93f58d5 Performance optimization in the code generator for INSERT for the common 
case where the target table has neither generated nor hidden columns.
Also fix a redundant (and thus unreachable) branch in the resolver.

FossilOrigin-Name: 16ac213c57196361a9d14df4c0d1ccc6f67ac522365b345ea364d1aec61fa3f2
 2021-02-18 00:26:11 +00:00
drh
7dec804d42 Remove dead code. Fix RETURNING for INSERT into a virtual table. 
FossilOrigin-Name: dbfa38699c87ab4bf390666e411dda8d375c7b53b9b4fb131adacbf575867a72
 2021-02-04 22:59:19 +00:00
drh
18e5607211 New opcode OP_ChngCntRow used to output the result of PRAGMA change_count. 
Only this new opcode, and not OP_ResultRow, checks for foreign key errors.
Faster performance, and now also works with RETURNING.

FossilOrigin-Name: 154fc2b15465c7c92a1af0a93851421aec42a81bab54840a9701f2c78068e14e
 2021-01-31 15:50:36 +00:00
drh
d086aa0a48 RETURNING works even if "PRAGMA count_changes=ON" is set. 
FossilOrigin-Name: a9122d97577b239704cdee1a90a3b0dbff8bdf9dea2324d7315bd47238dcc8eb
 2021-01-29 21:31:59 +00:00
mistachkin
d6665c51e2 Fix harmless compiler warnings seen with MSVC. 
FossilOrigin-Name: dc7938d2d715301595dee2fac6880af3716c4b3d1cbe7c3578d7fd30ba146a23
 2021-01-18 19:28:56 +00:00
drh
21d4f5b53a Fix a potential use-after-free following an OOM in sqlite3ParserAddCleanup() 
and add a mechanism to detect situations where this might occur in the
future.

FossilOrigin-Name: 38ef8ab9830e12acd2c710e113939b1f8dced02612c6933c37a3c948a4030d0a
 2021-01-12 15:30:01 +00:00
drh
cf3c078f93 Add a linked list of ParseCleanup objects to the end of a Parse object and 
use that list as a place to put other sub-objects that need to be deallocated.
Have a single such list for infrequently used sub-objects is more efficient
than doing an a separate check for each kind of sub-object.

FossilOrigin-Name: affa2b7b316941b8a6c4d0d1ff212c81a593faf1d05d129e14d2b70d73a25c59
 2021-01-11 20:37:02 +00:00
drh
a06eafc8fc Do not set the P3 parameter on OP_RowCell when copying an index btree, as 
P3 is not used in that case.

FossilOrigin-Name: eef070a4aadf02a845d0ed00767be049d3b76e811e24797a116776fa836d1b03
 2020-12-29 15:06:26 +00:00
mistachkin
9a60e716f7 Fix a couple spelling typos in comments. 
FossilOrigin-Name: 907ddf86766ebdbe39bdc89543c1a7bbd65c710c9f3a3a4d796845b2c02b711b
 2020-12-22 19:57:53 +00:00
drh
9f023ce539 Enhance UPSERT so that it allows multiple ON CONFLICT clauses and does 
not require a conflict target for DO UPDATE.

FossilOrigin-Name: 6b01a24daab1e5bcb0768ebf994368d941b1dfc217bf6b661211d900331e68cf
 2020-12-14 15:39:12 +00:00
drh
255c1c159b New test cases with corresponding bug fixes. 
FossilOrigin-Name: f22c21a94ca4cad0217f91c1a5a275bc348cb6ba0f3a54c927533bc8d8c96a90
 2020-12-12 00:28:15 +00:00
drh
58b18a47df Begin adding test cases. Fix one bug found so far. More are pending. 
FossilOrigin-Name: aadd67ddf2a191629b5356395f75e4556aac904a6e2f6b83742fa4f26e4253a4
 2020-12-11 19:36:19 +00:00
drh
d3e21a1098 Small performance tweaks. 
FossilOrigin-Name: 5321d60c575ef8f888d1b315df02cf9ed96a3ffc61babbc1429aa73b2a61a190
 2020-12-11 17:11:56 +00:00
drh
ed4c54699d Bug fixes so that legacy tests pass. New tests for new functionality have 
not yet been added.

FossilOrigin-Name: aa76790e58cea9a2b707f5912fd66c76545e7417442553fc13c87f773a2fe1dd
 2020-12-11 16:49:51 +00:00
drh
61e280ad8a Logic is in place to handle multiple ON CONFLICT clauses, but it does not work. 
Any use of ON CONFLICT will likely lead to memory faults.  This is an
incremental check-in to save my place.

FossilOrigin-Name: 155142314feb007d526f8f67723636fd50dc52d1cd4d3a67dd93b105c9d5c2be
 2020-12-11 01:17:06 +00:00
drh
daf2761c62 Use an iterator for the index loop in sqlite3GenerateConstraintChecks(). 
The idea is that this iterator can be enhanced to traverse the indexes in
any order, as required by multi-index UPSERT.

FossilOrigin-Name: 64a4a91ecc5dcde3fa07d3cf038c74b9ede63d36628ecfb35203a9dfbbfe113c
 2020-12-10 20:31:25 +00:00
dan
7aae73588a Better integrate the changes on this branch with OP_Insert and OP_IdxInsert. 
FossilOrigin-Name: 101cef14910d6e865a94bc870aed599321b893188062a9a61d70a9434992cf23
 2020-12-10 18:06:24 +00:00
dan
cd1b2d0b54 Transfer large index or WITHOUT ROWID records between b-trees when vacuuming without loading them into memory. 
FossilOrigin-Name: dfd4ca6891a893d0e9551689954d3e79114d5565f8a5264f96ad1d64fe1d6280
 2020-12-09 20:33:51 +00:00
drh
e84ad92f17 For upsert, the constraint check code generator uses a copy of the index list 
for the target table, which can potentially be reordered.

FossilOrigin-Name: 3194c00c2c6a32bdfd5acc9fda5b38ae131d20cd3b7aea8512a41b2e76808f6a
 2020-12-09 20:30:47 +00:00
drh
20b86324a1 Initialize all terms in the ON CONFLICT clause stack. 
FossilOrigin-Name: 5e683fd1cbde53f37cf8a2b1e981191e2b29e3376db554691767f33c37c7547e
 2020-12-09 01:34:48 +00:00
dan
036e0675e6 Experimental changes to vacuum to avoid loading large records entirely into memory. Currently only works in limited cases only - for rowid tables when the page-size does not change. 
FossilOrigin-Name: c90e063ca9ddcdd1e9f1a2e25a3f7d6e7ee798373ad8acf65b90536b0a124c0d
 2020-12-08 20:19:07 +00:00
drh
e2678b93af Fix a couple of unreachable branches. 
FossilOrigin-Name: f2d26f2b11317abd4f993faa1a4df7afcd1a2d4e448ecc69ca05e9ebf102cd62
 2020-08-28 12:58:21 +00:00
drh
289a0c849b Remove more unnecessary sqlite3GetVdbe() calls, replacing them with assert()s. 
FossilOrigin-Name: b7dc932197665f0ebde3ffb8f0785c22da07ce307cfd5f0eab69e86e4b38fcde
 2020-08-15 22:23:00 +00:00
drh
f0b41745c5 Avoid unnecessary calls to the sqlite3GetVdbe() routine. Add assert() 
statements to prove each call is unnecessary.

FossilOrigin-Name: 86d3790caf92e9cb7a9aaaa110f309b4b6945ac30cfd53fc3e5aa1ec3075ada5
 2020-08-15 21:55:14 +00:00
drh
08b9208660 Fix harmless compiler warnings that surface in newer versions of GCC. 
FossilOrigin-Name: 9d670a318381f219b467653f5f9539097808b887ae37291ce13be462dedfb18d
 2020-08-10 14:18:00 +00:00
drh
8deae5ade3 Fix signed/unsigned compiler warnings. 
FossilOrigin-Name: 1d69eee8b085d514f442840346f001b4785f8ec64f5ba66943e9577b26e2e29c
 2020-07-29 12:23:20 +00:00
drh
1e32bed3c1 Further refactoring of the schema table name. 
FossilOrigin-Name: 9536fa0ae0c1ae6e2e98d2fa11e5acda7f3c9b8ca5061b6f7f8cae63a11d936b
 2020-06-19 13:33:53 +00:00
drh
8e50d65aaf Improved bytecode comment. 
FossilOrigin-Name: 9224f1543b51a674ad6d7db8e90d97e1b0d1abe68bed3417820ebd09d27270f9
 2020-05-23 17:56:49 +00:00