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Commit Graph

459 Commits

Author SHA1 Message Date
dan
a32536b498 Fix the zeroblob() function and related APIs so that they work with SQLITE_OMIT_INCRBLOB builds.
FossilOrigin-Name: bc401a75dd9f3c29c5969ae36264e68ccefc0937e44e232ca1f6b550f7fd6e22
2021-11-08 19:35:26 +00:00
drh
de3246176b More precision in comparing integers and floating point values while
processing the integer primary key for OP_SeekGE and similar.
[forum:/forumpost/2bdb86a068|Forum post 2bdb86a068].

FossilOrigin-Name: f9c6426de3b413ff8fcf04a00931ca5f123f996c572b35181af114afa8d811d7
2021-07-19 20:52:31 +00:00
dan
2c7188732d Add the sqlite3_changes64() and sqlite3_total_changes64() API functions.
FossilOrigin-Name: 48fdec22c966003f5577e0bf52906ef90df11e4e395723a646304e67ed976f37
2021-06-22 18:32:05 +00:00
drh
d622855e34 Set the database connection error code for an oversize argument to
sqlite3_bind_blob64() or sqlite3_bind_text64().
[forum:/info/a636276f0d451667|Forum post a636276f0d451667] and
[forum/forumpost/33821c8db543c|33821c8db543c].

FossilOrigin-Name: 56ff58c0b8905aa10c85f1418da8d6089d23fd9a220c5cb17027d46affe05002
2021-06-09 14:45:02 +00:00
dan
a23a873fbb Add the experimental sqlite3session_changeset_size() API.
FossilOrigin-Name: b5564a6fd54875db1de884fdc0e5eeabcd6aa5595ad03a8a60843503e830a2d8
2021-04-21 20:52:17 +00:00
drh
5a4a15fd2e Further sanity checking of the OpenDup cursors.
FossilOrigin-Name: 0ec71cf16983697f68ab8d921d80a5f39611e4cb5e6e19cbc4a9ad6d49bfc835
2021-03-18 15:42:59 +00:00
drh
17b74817c0 Change the name of Vdbe.magic to Vdbe.iVdbeMagic to disambiguate with
sqlite3.magic.

FossilOrigin-Name: 6b29e549bb34933bfd0758e31085e65dcc0f75446c478fc775d96cf01c22cf43
2021-02-03 18:32:25 +00:00
drh
fa17e134b2 Improvements to the IN-early-out optimization so that it works more
efficiently when there are two or more indexed IN clauses on a single table.

FossilOrigin-Name: 35505c68c1945c35babd2496e02bc4907a15c8e7b8d77f05f230bd0e9d4891d7
2020-09-01 01:52:03 +00:00
drh
abc3815860 Continuing work toward supporting unsigned 32-bit page numbers.
FossilOrigin-Name: 9ce1710aad43cebe5ad50859c7685fb83e40cdd4a60913bd2b7e659bc59942fd
2020-07-22 13:38:04 +00:00
drh
c004bd54e3 Fix another harmless compiler warning.
FossilOrigin-Name: 949eec2530bbe7f48daddfb3022d60ea5d7a43f0f5d120e71c682054feb721db
2020-04-02 13:08:54 +00:00
drh
e0ef4e2b47 Add a missing #ifdef to avoid a harmless compiler warning.
FossilOrigin-Name: cc54de354317ebc080d4d1ee25427b31a49c4a75e01cb5d9966f1aaeb2ad098d
2020-04-02 12:53:17 +00:00
drh
8c5163a697 The bytecode() function now runs and sometimes works, but it untested and
there are known problems.

FossilOrigin-Name: 6819b86eb2de516c445655a83f9b2ba5ae0bff660cffaf84f1345d9be79b051e
2020-03-23 20:58:55 +00:00
drh
356cd76aa8 Begin breaking appear the sqlite3VdbeList() routine into subroutines that
can be reused by the bytecode() table.

FossilOrigin-Name: 2c4dd79fbd4b9f72634a732abb9ed833cd8c9b05fe1e10af8f23e6d6ec023c7c
2020-03-23 17:24:46 +00:00
drh
2c3629e1c9 Change a bitfield in sqlite3_stmt into an unsigned character, for slightly
smaller code and better performance.

FossilOrigin-Name: 0d4d3c642494ad494b4ec937215eaf833158e62e5ae59ed981d6b546220c13b8
2020-03-21 15:07:27 +00:00
drh
2a74006087 Small size reduction and performance improvement in the
sqlite3VdbeMemFromBtree() interface used to pull content out of the b-tree
and into an sqlite3_value object.

FossilOrigin-Name: ae6dd8d3e921670ee6450453b54245dd71bcfff3fd1bc7fdb7cf4cf9585c3375
2020-02-05 18:28:17 +00:00
drh
5ca06329c9 Rewrite the (debugging use only) sqlite3VdbeMemPrettyPrint() function to use
the safer StrAccum interface rather than writing directly into a static string
buffer.  Perhaps this will address ticket [bbd55a97e66ff50d], which we are
unable to reproduce.

FossilOrigin-Name: 69f6a7e42f42116d29514239575ee1dc381b5b673da012cb5f3e8cf17922d493
2020-01-06 19:23:41 +00:00
drh
be3da24134 Add the OP_FinishSeek opcode which completes an OP_DeferredSeek if the seek
has not already completed.  Also add the sqlite3WhereUsesDeferredSeek()
interface to the query planner.  The UPDATE implementation adds an
OP_FinishSeek before running the final OP_Insert if one is needed.
Ticket [ec8abb025e78f40c] and also an assertion fault reported by Yongheng.

FossilOrigin-Name: 21ef6e99331210b80fa7c71b4f02e8f768a748d01aef884368af2f6b51a067e0
2019-12-29 00:52:41 +00:00
drh
0af6ddd3ca Fix the OP_Cast operator so that when casting to TEXT, it always leaves
the result in the encoding of the database.  Ticket [0911b5d161b039c6].
Test cases in TH3.

FossilOrigin-Name: f347744e0d576f0250c29259cca755e57afded8956224114c01603c1bca5b3a4
2019-12-23 03:37:46 +00:00
drh
093589de5e Fix a faulty assert() statement in the sqlite3VdbeMemExpandBlob() routine.
FossilOrigin-Name: 69a26eade2f92029e722a5a654214b1e2a3fc7ed497ce9aa5a7dce944f90e502
2019-10-07 13:26:58 +00:00
drh
175b8f06f7 Remove support for STAT3. The sqlite_stat3 tables are ignored, if they
exist.  STAT4 continues to work as it always has, and as it is a superset of
STAT3 is the recommended replacement.

FossilOrigin-Name: 1e17ea2fd1df4ad49138c787c8fe3207dd0c25c93f9001d52a9b69f8c12e841c
2019-08-08 15:24:17 +00:00
drh
c1da4397d6 Move the sqlite3VdbeSerialType() routine in-line in the OP_MakeRecord opcode.
Optimizing compilers were doing this already.  By doing it manually, we can
omit some redundant tests and make the whole thing run a million cycles faster
and use about 80 bytes less code space.

FossilOrigin-Name: d837ab0da52632699abc09320980606aef020df5020c253f99c97e24bf3c6d00
2019-07-11 19:22:36 +00:00
drh
de7109e61b Ensure that the typeof() function always returns SQLITE_FLOAT for floating
point values even when the value is stored as an integer to save space.

FossilOrigin-Name: 48889530a9de22fee536edfd1627be62396ed18d842d5fd6d91e010b4337be95
2019-05-02 17:45:52 +00:00
drh
83a1dafb03 When values have real affinity and are converted into strings for CHECK
constraints or index expressions, do the conversions into a real-number format
even if the values are stored as integers for efficiency.
This appears to fix ticket [ae0f637bddc5290b446].

FossilOrigin-Name: 5997d075665faca6b70fa647e877ebc84c473b32887b96235865d59ce80247f8
2019-05-01 18:59:33 +00:00
drh
7d683394f1 Fix a faulty assert() in the sqlite3VdbeMemExpandBlob() routine.
FossilOrigin-Name: df58774e994bd306b1a2e1f259e7e4408f01c5b1dc104673698168bbf8a63ce5
2019-04-07 18:04:57 +00:00
drh
860d2b08c6 Make sure the MEM_FromBind bit inthe Mem.flags field is not included in
the MEM_TypeMask.  This critical changes was omitted from the previous two
check-ins by mistake, and so those check-ins are not fully functional.

FossilOrigin-Name: f7ba2daf91c96ba16958188d6084a0ff129310d348932de493d326f1d24679cd
2019-04-02 00:56:20 +00:00
drh
57b1a3e303 Initial implementation of the sqlite3_value_frombind() interface.
FossilOrigin-Name: 98da62dfdacc6b3c490c387d1f8a74cc5daa978776967e264ad4800c380b0ddf
2019-03-29 11:13:37 +00:00
drh
81f9159b5e Faster allocation of new sqlite3_stmt objects.
FossilOrigin-Name: 891f1f72187f0f9ec0d24fda98cc08be3ae3c3ff8b27c4e409ee7135c3106398
2018-12-28 20:48:07 +00:00
drh
b6991796b4 Move the nOpAlloc field from Parse into Vdbe to avoid an extra pointer
deference on the fast path in sqlite3VdbeAddOp3().

FossilOrigin-Name: 8f10efc29dea7b816b1ba401726c268950d6671d890f686911269082a241d8d9
2018-12-28 20:14:03 +00:00
drh
893bd3751b Fix the sqlite3_normalized_sql() interface so that it renders
double-quoted string literals as "?".

FossilOrigin-Name: 0d8e150434bbd179696f1ffe71d1e06cb3d43e6468496c7e481fca8486387bad
2018-12-07 16:32:11 +00:00
drh
92cd307c1c Fix harmless compiler warnings that appear with SQLITE_OMIT_EXPLAIN.
FossilOrigin-Name: 5fff00b0d5eb634d40e767671d5a0e8bd263d15d88abe531f6072f01bc789568
2018-11-17 14:26:45 +00:00
mistachkin
8bee11a41e Add the sqlite3_normalized_sql() API.
FossilOrigin-Name: 592b66e8058dd03a056a036e2606247c9efdb06d15eebe9bcc455f7f55e30ae6
2018-10-29 17:53:23 +00:00
drh
9d67afc421 Also free up the MEM_RowSet bit in the Mem.flags field and have RowSet objects
be destroyed using Mem.xDel.  This change results in faster code.

FossilOrigin-Name: f48e9feb3fca514e4e586932e6d19a5e34a384204effeba553006dcddf5f13d2
2018-08-29 20:24:03 +00:00
drh
72f56ef95d Free up the MEM_Frame bit in Mem.flags object. Store VdbeFrame objects
as MEM_Blob with a special Mem.xDel pointer instead.

FossilOrigin-Name: 62db5fd47660bbc4fcf2c6d4a6c5a3077f12c6442a128d22b66b789a0409ef32
2018-08-29 18:47:22 +00:00
drh
c6ed275fcb Remove more column-cache residue: The OP_SetColTab and OP_VerifyColTab
opcodes and the associated SQLITE_DEBUG_COLUMNCACHE logic.

FossilOrigin-Name: 80236e81cefdf3d3cda3dbdb6de1575c38e4e248cc4b72ca9ee96d3aa0464bfd
2018-08-04 16:54:53 +00:00
drh
ba968dbfe7 Do not abort running queries due to a CREATE INDEX statement. Allow them
to run to completion before being reprepared.  Fix for ticket
[c694113e50321afdf9].

FossilOrigin-Name: 2bd593332da0aade467e7a4ee89e966aa6302f37540a2c5e23671f98a6cb599c
2018-07-24 22:02:12 +00:00
dan
67a9b8eded Omit all window-function related code when building with SQLITE_OMIT_WINDOWFUNC.
FossilOrigin-Name: 5f04b016467342b5a796bf702ed25b621eb86f2961c1e703d276c93f2cb6aa89
2018-06-22 20:51:35 +00:00
dan
09882a75c4 Merge latest trunk changes into this branch.
FossilOrigin-Name: 5cf5f1808a51f9c2cfc98dd49b4f1ce860b53e935287f89868ce2fdbace8eb06
2018-06-14 14:30:51 +00:00
drh
4449437b56 Pad out the sqlite3_value structure to be a multiple of 8 bytes.
FossilOrigin-Name: f76dc33bde4b2180b935d1261492d9535772ed37e54489c1a33e9f11c7c90433
2018-06-13 16:52:38 +00:00
drh
58773a533c Improvements to SCopy correctness tracking when SQLITE_DEBUG is enabled.
FossilOrigin-Name: b2973f2357a2c5e22e0d612c970adbc6d51cbc5e4ff7ac6d2b678722e553e8ec
2018-06-12 13:52:23 +00:00
drh
299bf7c2f0 Add the OP_SetTabCol and OP_VerifyTabCol opcodes, only when compiling with
SQLITE_DEBUG, to do run-time verification of the column cache.

FossilOrigin-Name: b37614a3670770919a7c7f8157c5fd6578d736447998640b52e5cef8174cadc2
2018-06-11 17:35:02 +00:00
dan
07509f8c1e Merge latest trunk changes with this branch.
FossilOrigin-Name: 251022034219819a1dc356542770ff46e3147a080f072eb20af6106771dadd92
2018-06-07 20:35:28 +00:00
drh
8c2b6d784b Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of
unnecessary sqlite3BtreeMovetoUnpacked() calls when checking for an early
exit on IN-operator loops.  Futher optimizations are likely possible here.

FossilOrigin-Name: 6bf251af4347165a470d39457d61ab6d2a06c206db8f30bd8be5dbb388ae8a5b
2018-06-05 20:45:20 +00:00
dan
2b1287cf44 Merge latest trunk changes into this branch.
FossilOrigin-Name: 83d6416a868fac81a78c9507185a48d00920e4322276245e285946f760915f4a
2018-06-04 08:28:18 +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
dan
86fb6e1738 Start of experimental implementation of SQL window functions. Does not yet
work.

FossilOrigin-Name: 3781e520854808fe02ad3fe77dd11fc917448c58ff1fd79123289dd91937decd
2018-05-16 20:58:07 +00:00
drh
1fcfa7240f Always interpret non-zero floating-point values as true even if their
integer part is zero.  Fix for ticket [36fae083b450e3af857a459e20].

FossilOrigin-Name: a983fa857048c748112c2f805f13aadeae43b43b3d27fa55433a3699b51c9a0e
2018-02-26 15:27:31 +00:00
drh
f09ac0b336 Slightly faster function dispatch in the virtual machine by avoiding
unnecessary reinitialization of variables that are already correctly
initialized.

FossilOrigin-Name: edd4e6876cc08ab907bb21f075380de946562d4c56a04923760848b4b11536ac
2018-01-23 03:44:06 +00:00
drh
8c9e30ba2f Remove an unused field from the internal definition of the sqlite3_context
object.

FossilOrigin-Name: 948a26b5a64d8a89c4ec7546ec4a4bee36e29e82edda677ca75424e7091325d0
2018-01-16 21:05:10 +00:00
drh
ce2fbd1b02 Add the experimental sqlite3_value_nochange() interface usable by xUpdate
methods of virtual tables to see if a column has actually changed values.

FossilOrigin-Name: 8b7be15ece9e2e83959bb0e21e240106fe1077431242c3cc6b81f1baa2382f40
2018-01-12 21:00:14 +00:00
drh
6f390beb7f Add the sqlite3_vtab_nochange() method which virtual table implementations
can use to optimize UPDATEs.

FossilOrigin-Name: d444b1ff39f0a1673a977b8047e1e14a49d461c9934be080d27c2392a830c1c0
2018-01-11 17:04:26 +00:00