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20,306 Commits 1,608 Branches 185 Tags
e22976c5357fb6501cb0dd40220b8d48bd9295bb
Commit Graph

433 Commits

Author SHA1 Message Date
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
drh
fe0cf7a18c Avoid a test for CURTYPE_BTREE in sqlite3VdbeCursorMoveto() in order to reduce 
the size and improve the performance of OP_Column.

FossilOrigin-Name: f078deb25149b7b1881b7f3374b343d0677e82336d8fdd7f1cdd06d926b5dd57
 2017-08-16 19:20:20 +00:00
drh
a0024e6c99 Improved implementation of the destructor on pointer-passing interfaces. 
FossilOrigin-Name: 601ad6795927fff8c3cc1711a2fd90912499573e94aa5bc8f18cbd4b89778f58
 2017-07-27 15:53:24 +00:00
drh
22930062d5 Add a destructor argument to sqlite3_bind_pointer() 
and sqlite3_result_pointer().

FossilOrigin-Name: 3d9e841f6011480ebb8a6d860da72af7fa545983e08835ddef2cac96e5f5cd4b
 2017-07-27 03:48:02 +00:00
drh
ae3ec3f920 Add an experimental "pointer type" parameter to sqlite3_bind_pointer(), 
sqlite3_result_pointer(), and sqlite3_value_pointer().  The pointer type is
a string that must compare equal using strcmp() or else the pointer comes
through as a NULL.

FossilOrigin-Name: 211cce04e97d2e325a6ea3e99738fc71115d673dc13daeffb03ac3140deb11de
 2017-07-17 00:40:19 +00:00
drh
3fb406083a Merge the latest changes from trunk. 
FossilOrigin-Name: a54be6e041a9185787a22b86603dcb0654e5e4af71225b556d1b6279f8520ad8
 2017-07-13 17:34:46 +00:00
drh
f0f44b79c9 Compile cleanly with SQLITE_OMIT_UTF16. 
FossilOrigin-Name: 783100b801703577e35ec12fe7623e1797e49699f3b8deb0694ef061a142b844
 2017-07-12 12:19:33 +00:00
drh
3a96a5d919 Add APIs for binding pointers that can be used by app-defined functions. 
FossilOrigin-Name: d9f4a831ba957ead3890b36d0e33e30cfa4c79b7de6400e623b9746a0a5a02d0
 2017-06-30 23:09:03 +00:00
drh
01e6d540a7 Add interfaces sqlite3_prepare_v3() and sqlite3_prepare16_v3() with the 
extra prepFlags argument. Add the SQLITE_PREPARE_PERSISTENT option as 
one bit in that argument.  Use the new option in FTS3, FTS5, and RTREE.

FossilOrigin-Name: 03977248e6fdaa9b35c15e5dd9bb89552f2f0a913cc31609b5af1e2347b67d38
 2017-06-29 15:24:57 +00:00
drh
00d11d400b Add the SQLITE_STMTSTATUS_REPREPARE and SQLITE_STMTSTATUS_RUN options to 
sqlite3_stmt_status().  Use this for two new columns in the stmts virtual
table.

FossilOrigin-Name: b0b0c8f8d548ef78584ab714ab120b01c1b83fc0d8ae2fd7626b970bab9fca58
 2017-06-29 12:49:18 +00:00
drh
2c2f392dca Add interfaces sqlite3_prepare_v3() and sqlite3_prepare16_v3() with the 
extra prepFlags argument.  Add the SQLITE_PREPARE_PERSISTENT option as one
bit in that argument.

FossilOrigin-Name: 4a25c5883380fe5990d8180adb58c3bdc7a3d081bc4c69cd4de3cd57074fb251
 2017-06-01 00:54:35 +00:00
drh
2ab792e4c0 Change sqlite3BtreeNext() and sqlite3BtreePrevious() so that they return 
SQLITE_DONE if they have already reached the end (or beginning) of the table.
This gives a performance increase and size reduction.

FossilOrigin-Name: e972a3860892022d57b26ec44ce0fbadc61c1ff54b7a10b7e82390db88d323a7
 2017-05-30 18:34:07 +00:00
drh
e694139788 Rename fields of the internal AuxData object to make them unique and easier 
to search for.

FossilOrigin-Name: 2be9850cef6492e168243807c34af72119ffbe414027a12c4eda6c421b5b950d
 2017-05-10 19:42:52 +00:00
drh
7a6ea93fd8 Do not expose the name of the internal Mem object in the public interface 
defined by sqlite3.h.

FossilOrigin-Name: 19dd753f9e50fee247b1ab141669817c7e88bc3f6d6065dba6c731db9f7a2409
 2017-04-09 19:23:55 +00:00
drh
ab087d4e67 Fix the OP_Once opcode so that it works correctly for recursive triggers. 
Ticket [06796225f59c057cd120f1].

FossilOrigin-Name: 2556014514f36808e6d18b25722eae0daeeb8fbb5d18af13a9698ea6c6db1679
 2017-03-24 17:59:56 +00:00
dan
cb9a364390 Experimental change to invoke the preupdate hook when WITHOUT ROWID tables are 
written.

FossilOrigin-Name: 856f8604c59c8fdd9bfb7d86fc0e212f091ab49a
 2017-01-30 19:44:53 +00:00
drh
9bf755cc44 Use the VList object to replace Parse.azVar for tracking the mapping between 
SQL parameter names and parameter numbers.  There is a performance
improvement, though there are still a few hiccups in the current code.

FossilOrigin-Name: 68ecafa1425a41358c88f41efea3262f1b4490f2
 2016-12-23 03:59:31 +00:00
drh
fbd8cbdcf5 Reorder the fields in the VdbeCursor object so that those that need to be 
bulk zeroed on allocation are grouped at the beginning, and the memset()
only runs over those fields that really need it.

FossilOrigin-Name: 8165f88bb1d40693d67005a8d5dc499085f64b91
 2016-12-10 12:58:15 +00:00
drh
cb3cabd01b Refactor the sqlite3BtreeKey() and sqlite3BtreeData() internal interfaces 
into sqlite3BtreePayload() and sqlite3BtreePayloadChecked(), respectively.
This is a continuation of the optimization started by check-in
[2d831074cf].  The result is a slightly smaller and faster binary.

FossilOrigin-Name: 49ebc219faea30eaa61def4a3fba2817b9c58a86
 2016-11-25 19:18:28 +00:00
drh
eaf6ae2992 Comment changes that attempt to better explain the behavior of the "seekResult" 
field on VdbeCursor objects and the seekResult parameter to
sqlite3BtreeInsert() and the OPFLAG_USESEEKRESULT flag on insert opcodes.
No changes to code.

FossilOrigin-Name: 345b46be75bdf6f9fb7367a6164d89bae11995a6
 2016-11-09 20:14:34 +00:00
dan
e43635aaa7 In the sessions module, avoid recording a change if an UPDATE statement 
overwrites a column with REAL affinity containing an integer value with the same value.

FossilOrigin-Name: b861328ab9ceec6926d97658c3606e6ae9ad39bf
 2016-10-21 21:21:45 +00:00
drh
ab3182f7c4 Avoid unnecessary zeroing of fields in the Vdbe object when it is allocated. 
FossilOrigin-Name: 1e21bbe836539e64d24857f4faa3d12cd607dc7e
 2016-10-01 00:37:50 +00:00
drh
22fa36dc04 Clarification and typo-fixes in comments. No changes to code. 
FossilOrigin-Name: e2cd79aa3104c51035bf29c548c322564731b75f
 2016-09-29 15:53:28 +00:00
drh
9e5eb9c8cc Revise the implementation of OP_Once so that it is smaller, faster, and uses 
less memory.  This also fixes an obscure bug introduced 3 days ago by check-in
[5990a1bdb4a073].

FossilOrigin-Name: 6bf5ba10d28f1b0a32aa9a560ae3143a1235eadb
 2016-09-18 16:08:10 +00:00
drh
43f58d6a17 Fix various internal #defines to conform to new C-language naming restrictions, 
specifically that private-use macros names must not begin with "_".

FossilOrigin-Name: 5471aca0158851d3fb0a2517306917536deb38bb
 2016-07-09 16:14:45 +00:00
drh
74c3302fd1 Avoid compiler warnings and excess opcodes when SQLITE_ENABLE_PREUPDATE_HOOK 
is not used.  Fix the EXPLAIN output for P4_TABLE opcodes.

FossilOrigin-Name: 5ab46d760dff327491703478d6d7c7c44a0147ca
 2016-03-30 12:56:55 +00:00
drh
47e1842e5b Merge all recent enhancements from trunk. 
FossilOrigin-Name: 6a7ee04b0ddac36a87d5ed2ac89a53e537f4d5a3
 2016-03-16 01:16:30 +00:00