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21,471 Commits 1,611 Branches 185 Tags
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119 Commits

Author SHA1 Message Date
drh
9c6a92982f Fix a harmless compiler warning. 
FossilOrigin-Name: f0ebea35d9d6b69a7bb4242fb79ff3db4267e429855fa6969f9f52ffee1c7a99
 2019-11-01 18:52:09 +00:00
drh
bc4974c81b The SET DEFAULT and SET NULL conflict resolution actions for foreign key 
constraints should cause an error when they appear on a generated column.

FossilOrigin-Name: b47513d2b32b61ba42c1e9b59287d28f6fee231e6c65de2a3aa19effbbaf1e7f
 2019-11-01 17:31:27 +00:00
drh
dc2e331ab2 Add another missing column number translation to the foreign key logic. 
FossilOrigin-Name: 32df5edcfef2605009f45d6ef1b97c63a99df07c7b4e00dc70f93001cfb8d81f
 2019-11-01 16:08:20 +00:00
drh
f09a14fbc3 Add missing column translations to foreign key logic. 
Ticket [c28a01da72f8957c]

FossilOrigin-Name: bc6a43e7ee6353b9ef3dea4309c77e170a1c798eefcfaa7636bf5a93e51c47ee
 2019-11-01 12:14:30 +00:00
drh
a1a01ffb5e Fix the foreign key logic to be compatible with generated columns. 
FossilOrigin-Name: 3de57145a18c62ff9b556c7218d8b276000d0052e4890212fa9335235f22d03c
 2019-10-23 00:31:01 +00:00
drh
31f69626df Performance optimization to the lookaside-memory disabling mechanism. 
FossilOrigin-Name: 17ce1c49cb0ed6fdd8c7c33431bc2afa217f1092c99b8dd608890a8e7aec7fb1
 2019-10-05 14:39:36 +00:00
drh
1194904b81 Refactor field Expr.affinity into Expr.affExpr to avoid confusion with other 
fields and variables named "affinity" and display affExpr it in
sqlite3TreeViewExpr() output.

FossilOrigin-Name: a29f2a7d07beff64e489e8f824babc6228c4a499fadc0ee701caa60a63baadcd
 2019-08-05 18:01:42 +00:00
drh
55f66b341a Add new assert() statements in an attempt to help static analyzers avoid 
false-positives.

FossilOrigin-Name: 9e66458592d40fbd96ea5f21339573110ca1cfe328238a020c9420a87d35dd72
 2019-07-16 19:44:32 +00:00
drh
d5c851c1cb Streamline the processing of the AND operator. Slightly smaller and faster. 
FossilOrigin-Name: 7713996aa99ce6dd35b5a2db74dd26658fb8d9817169b2a7531cdef6edb41403
 2019-04-19 13:38:34 +00:00
drh
29c992cb04 Revamp the SrcList allocator routines to be methods of Parse instead of 
being methods of the "sqlite3" object, so that they can leave better error
messages when the SrcList object grows too large.

FossilOrigin-Name: df08d472b090b212fb77ce2aae0e1ffe79ae5db4b1accf55e6fdb18e8b0a7098
 2019-01-17 15:40:41 +00:00
drh
ec4ccdbcb1 A new implementation of sqlite3VdbeMakeLabel() is faster and makes fewer 
memory allocations by deferring memory allocation until 
sqlite3VdbeResolveLabel() is called, at which point the code generator has
a better idea of how big the relocation table needs to be.
The sqlite3VdbeMakeLabel() routine now takes a Parse* parameter instead of
Vdbe*.

FossilOrigin-Name: 4a0929ac76d8aa5dd65eac3b83d6bbf41e505e01d175ca0fb2b19ba02d439415
 2018-12-29 02:26:59 +00:00
dan
e46201e264 Fix a bug in the code that detects self-referencing rows as part of foreign 
key processing. Fix for [50d2a6c2].

FossilOrigin-Name: 16fff05347f42fe9fa0f3150290b98b59a9bb921e49dc07ca397aa1de7a7e17d
 2018-12-20 17:32:33 +00:00
drh
eda079cd2c Combine the Expr.pTab and Expr.pWin fields into a union named "y". Add a new 
EP_WinFunc property that is only true if Expr.y.pWin is a valid pointer.
This reduces the size of the Expr object by 8 bytes, reduces the overall
amount of code, and shaves over 1 million cycles off of the speed test.

FossilOrigin-Name: ad130bb86e74e6ce165fdbdce3a19699510f0e62071c1c7923b5a4538d888c7c
 2018-09-20 19:02:15 +00:00
drh
9a047bb881 Remove an unused branch in the FK logic. 
FossilOrigin-Name: 523ff77925f1da361cf31e3fc82bcb1708ed356a2391430ab14ef620c9bf2327
 2018-07-22 00:45:11 +00:00
drh
4031bafafb When compiling with SQLITE_DEBUG, add run-time checks to ensure that no 
statement aborts unless either there have been no writes or else there is
a statement journal.

FossilOrigin-Name: 5a4542dbcf17a9f7fed600897555c271e1651fd50eb41d0b126725b486e1d14c
 2018-05-28 17:31:20 +00:00
drh
8c0833fb21 In the parse tree, combine LIMIT and OFFSET into a single expression rooted 
on a TK_LIMIT node, for a small code size reduction and performance increase,
and a reduction in code complexity.

FossilOrigin-Name: 3925facd942c9df663f9b29b1e6f94f6be14af8c2b99eb691bfc836b4c220826
 2017-11-14 23:48:23 +00:00
dan
3b61ebb8de Omit some extra code from non-SQLITE_ENABLE_UPDATE_DELETE_LIMIT builds. 
FossilOrigin-Name: 72be33f9c84de3ec4afc40549482417456ca82c1d16b473dc034b144055271e5
 2017-11-10 20:13:14 +00:00
dan
c456a76fb3 When generating individual loops for each ORed term of an OR scan, move any 
constant WHERE expressions outside of the loop, as is done for top-level
loops.

FossilOrigin-Name: e4a022be4b069b08cfdfda5295461676b99d28e17bbbedfbcb362dec69de59bd
 2017-06-22 16:51:16 +00:00
dan
940b5eaa5e Avoid updating unaffected indexes on a table as part of an UPDATE that requires 
foreign key processing in some cases.

FossilOrigin-Name: 477bea9ed0dd0fa69896bfd16d9b1d22170cbab784e3279ce65c29c47e032f34
 2017-04-11 19:58:55 +00:00
drh
79df77821a Refactor the Table.nRef field as Table.nTabRef for easier grepping. 
FossilOrigin-Name: 9cae4c2e300e20304ced0dc8c1415c4922185928
 2016-12-14 14:07:35 +00:00
dan
68a494c06f Fix a problem causing SQLite to return false "foreign key violation" errors 
when there is a partial (i.e. WHERE constrained) UNIQUE index on the parent
key columns. This bug did not cause SQLite to allow illegal data to be
inserted into the database, only to reject legal operations.

FossilOrigin-Name: 850877d1ea43104cc215353414b870c340acced2
 2016-12-13 16:57:49 +00:00
drh
abfd35ea03 Performance improvement and size reduction in the Expr node allocator 
function sqlite3PExpr().

FossilOrigin-Name: 2a81763e68cdf9b8c46389b1e1a87bc2084b53e7
 2016-12-06 22:47:23 +00:00
drh
e1c03b6233 Use sqlite3ExprAlloc() instead of sqlite3PExpr() for leaf nodes in the 
expression tree, where appropriate.  This is both smaller and faster.

FossilOrigin-Name: afac0709cec577a7851e3711730712cf12eeb6af
 2016-09-23 20:59:31 +00:00
drh
69c338263a Rename the Db.zName field to Db.zDbSName to make it more descriptive and to 
distinguish it from all of the other "zName" variables scattered throughout
the code.

FossilOrigin-Name: 92a22f01343a898455fd61c3b8e7d7c954f5b569
 2016-08-18 14:33:11 +00:00
drh
0b2c140a4d Fix a memory leak when a WITHOUT ROWID eponymous virtual table is used. 
FossilOrigin-Name: 31b83a7d7e553163eb186fc966a885f237554ec2
 2016-06-03 18:21:04 +00:00
drh
3875a96ad9 Remove a redundant test for disabling RESTRICT with defer_foreign_keys=ON. 
FossilOrigin-Name: 9cdf813c6aaaddc01d2d4e04636c83fcda04d971
 2016-03-30 14:17:36 +00:00
drh
2606aca80f Merge recent enhancements from trunk. Default page size is 4096. Writes 
to statement journals are avoided.

FossilOrigin-Name: 456df3365e2df60e34762f2024bb551538b3f72b
 2016-03-04 16:42:43 +00:00
mistachkin
9d970c3c93 Small optimization in FK handling. 
FossilOrigin-Name: e0d25913b73a813f5987aa70b364b00f19351663
 2016-02-25 21:38:28 +00:00
dan
aa9ffaba4a Disable the RESTRICT foreign key action if "PRAGMA defer_foreign_keys" is set. 
FossilOrigin-Name: 9ffff484bb4b67c29dda6180d7d766ad13988fe1
 2016-02-25 20:17:55 +00:00
dan
fd37e67b16 Disable the RESTRICT foreign key action if "PRAGMA defer_foreign_keys" is set. 
FossilOrigin-Name: 8fea1166016c659ece83e0045bc348f478a9ba6a
 2016-02-25 19:52:11 +00:00
drh
575fad6500 Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority 
cases where db is guaranteed to be not NULL.

FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
 2016-02-05 13:38:36 +00:00
drh
4a642b6060 Improvements to the way that OOM errors are processed. 
FossilOrigin-Name: c3ef03478a5788c855b3aef385d43ae7f494f440
 2016-02-05 01:55:27 +00:00
drh
40aced5c65 Add the sqlite3TokenInit() utility function. 
FossilOrigin-Name: 7323175337b7ba85ac932ca892b28860f6a5b688
 2016-01-22 17:48:09 +00:00
dan
2beb2c390b Disable the RESTRICT foreign key action if "PRAGMA defer_foreign_keys" is set. 
FossilOrigin-Name: 82470d1c3a41221c78bcdd402b2219c4c21c43af
 2016-01-21 17:25:56 +00:00
drh
f19aa5fa6f Changes to the way that the default BINARY collating sequence is recorded 
result in a slightly smaller and slightly faster executable.  More work could
be done to make this cleaner.

FossilOrigin-Name: 2081d75767dc590b4c8457e5f8e5f18ba5f8eaa7
 2015-12-30 16:51:20 +00:00
drh
4b92f98ccc Use symbolic names XN_ROWID and XN_EXPR in place of the (-1) and (-2) 
magic numbers in Index.aiColumn[].  Add asserts to help verify that
Index.aiColumn[] is always used correctly.  Fix one place in FK processing
where Index.aiColumn[] was not being used correctly.

FossilOrigin-Name: 7d272aa62cd4cbbf4b5d04e3b918de27671e8301
 2015-09-29 17:20:14 +00:00
drh
076e85f59c Add the sqlite3VdbeLoadString() and sqlite3VdbeMultiLoad() routines to help 
with code generation, especially on PRAGMAs.  Rename sqlite3VdbeAddGoto()
to just sqlite3VdbeGoto().

FossilOrigin-Name: 847387ec8e6fef283899578fb232b2c23b00ee5b
 2015-09-03 13:46:12 +00:00
drh
2991ba050b Add the sqlite3VdbeAddGoto(v,i) routine as a shorthand for 
sqlite3VdbeAddOp2(v,OP_Goto,0,i).

FossilOrigin-Name: be78f413df1b0d874b44a866ef6bf17543d7e8a2
 2015-09-02 18:19:00 +00:00
drh
e910769817 Use the sqlite3IndexColumnAffinity() routine to quickly and correctly find the 
affinity of an index column.

FossilOrigin-Name: 1ee089a72d789002a0a377347fc51e08ab32fb14
 2015-08-25 19:20:04 +00:00
dan
464083544e Ensure that tables names are dequoted exactly once by the trigger logic. 
FossilOrigin-Name: 9d887b92f8086961e045f8acb9ee7a443796d411
 2015-04-21 16:38:49 +00:00
drh
b6b676ea7c Fix some identifier name de-quoting issues in the foreign key and trigger logic. 
FossilOrigin-Name: 59e92bd9521f1e8315a9a7e7fd3d63b0c75eaf0e
 2015-04-21 03:13:47 +00:00
drh
e918aaba98 Fix foreign key CASCADE for cases where the parent key is an INTEGER PRIMARY 
KEY and the parent table contains other columns named "rowid", "_rowid_",
and "oid".

FossilOrigin-Name: ed3cbaab6ad49b0cb5b17e44def26c866919387a
 2015-04-10 12:04:57 +00:00
dan
d457271130 Fix some comments in fkey.c. Add tests to fkey8.test. 
FossilOrigin-Name: 210cb2a6aaf780365064a26c0c99926bd6346e19
 2014-12-17 14:38:45 +00:00
dan
0466883300 Experimental opimizations to speed up FK constraint CASCADE and SET NULL action processing. 
FossilOrigin-Name: 35a20a5f22245c70faa51965951e8cc011defa93
 2014-12-16 20:13:30 +00:00
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
acbcb7e013 Simplify the interface to the symbol table, saving 600 bytes of code space. 
FossilOrigin-Name: 14b0f561fe15622b61c6676c9c455dca6b9ba5f0
 2014-08-21 20:26:37 +00:00
drh
5f1d1d9c87 Refactoring: Change "pIndex->onError!=OE_None" to use a macro: 
"IsUniqueIndex(pIndex)".  Easier to understand that way.

FossilOrigin-Name: e75b26ee357bb3d3c1a539b05d633ebf314726d7
 2014-07-31 22:59:04 +00:00
drh
48dd1d8e28 Change the name of the Index.autoIndex field to Index.idxType and provide 
symbolic names for the various values of that field rather than using
magic numbers.

FossilOrigin-Name: d16e575dacc811de0f7b58a0d1cd243678dce6c5
 2014-05-27 18:18:58 +00:00
drh
3d77dee935 Add the SQLITE_NOTNULL P5 code for comparison operations - really a composite 
of SQLITE_NULLEQ and SQLITE_JUMPIFNULL.  This flag indicates that NULL operands
are not possible and raises and assert() if NULL operands are seen.
Also omit an unnecessary scan of the sqlite_sequence table when writing
into an AUTOINCREMENT table.

FossilOrigin-Name: d2c047f304848e49864ed8c216b48fd671fa3916
 2014-02-19 14:20:49 +00:00
drh
688852ab15 Add logic to do test coverage measurements on the VDBE code. 
FossilOrigin-Name: ce184c7bb16988641d37c908d9b3042456d4be3d
 2014-02-17 22:40:43 +00:00