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23,156 Commits 1,606 Branches 184 Tags
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Commit Graph

1192 Commits

Author SHA1 Message Date
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
30642cf4d2 Correctly display the names of SQL functions in the VDBE_PROFILE output. 
FossilOrigin-Name: 161192f17273f32f1b3b82d41135aaca047e9a83
 2016-11-23 14:19:11 +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
230368c30d Remove an unnecessary memset() call. 
FossilOrigin-Name: a76bff74ce47c9c98106566bde5d781992657e22
 2016-10-01 19:32:54 +00:00
drh
d8e4b13256 Use sqlite3DbMallocRawNN() where appropriate, instead of 
sqlite3DbMallocRaw().

FossilOrigin-Name: 54a449a41d8d32da2f8b73689227ced866974a18
 2016-10-01 19:21:56 +00:00
drh
8dfef1175e Make sure deleting an unused prepared statement does not reference 
uninitialized fields in the structure.

FossilOrigin-Name: 7983eef0422439bfc85950554b000d46a9767ee3
 2016-10-01 16:53:45 +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
9b40d13f43 Fix the Parse.aColCache column cache so that all of the valid entries are 
in the first Parse.nColCache slots.

FossilOrigin-Name: 6028502059ccbd3699637b7a70a6d8ce1b7c3dad
 2016-09-30 20:22:27 +00:00
drh
2a1df937ab Avoid unnecessary Mem initializations when generating a new sqlite3_stmt 
object.

FossilOrigin-Name: 47ae1cda8dc255d100aeb8cb90ea4c9e449509be
 2016-09-30 17:46:44 +00:00
drh
dd3bfe8648 Small size and performance optimization to sqlite3VdbeChangeP5(). 
FossilOrigin-Name: 3c93c8f5bbf54ed2a331079b28fdd94eb0e59e69
 2016-09-29 20:28:34 +00:00
drh
2831c4d123 Remove the peep-hole optimization of removing OP_Close opcodes that come 
before OP_Halt, as the extra work of removing those opcodes uses more cycles
than just running them.

FossilOrigin-Name: 984a96d79656c1b095aba1f88aca4bb787ba0bd8
 2016-09-29 19:50:02 +00:00
drh
8aaf7bcc8d Avoid unnecessary calls to ExpandBlob() for smaller and faster code. 
FossilOrigin-Name: 5e196fd18169e84806cd45dd1a8190339323e772
 2016-09-20 01:19:18 +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
72ceae01e5 Slight size reduction and performance increase in sqlite3VdbeHalt(). 
FossilOrigin-Name: 5990a1bdb4a0734ff23015ada71cf02d0cb1381f
 2016-09-15 00:32:42 +00:00
drh
5f6eb1a0dc Optimization to vdbeRecordCompareInt() makes it slightly smaller and faster. 
FossilOrigin-Name: 5a2a7712cb8e0b686942dfab4e9e67b5ea7b2be3
 2016-09-15 00:04:46 +00:00
drh
64caee4086 Performance improvements to the comparison operators in the bytecode engine. 
FossilOrigin-Name: 37803b19d219f4107f29b240d5d314600e4bd236
 2016-09-09 19:33:00 +00:00
drh
1ad78c5791 Fix the extra comments (added with -DSQLITE_ENABLE_EXPLAIN_COMMENTS) so that 
the sense of <, <=, >, and >= tests is correct and so that the
SQLITE_STOREP2 version is shown correctly.  These changes are already in the
rowvalue branch but are added here since they are technically unrelated to
rowvalue.

FossilOrigin-Name: 4d43c4698eef4e3db7556813f0274b4018c7c2b9
 2016-08-27 14:05:12 +00:00
drh
557341e8fa Add requirements marks to the sqlite3_trace_v2() interface documentation. 
FossilOrigin-Name: ebd388e94da4a2b29c2a546f832d359619803ec5
 2016-07-23 02:07:26 +00:00
drh
cf1e395acb Fix sqlite3VdbeExpandSql() so that it handles OOMs by always returning NULL. 
FossilOrigin-Name: 5a027fe4127d498e0dc0d9439131c6a29085cf0a
 2016-07-23 00:43:14 +00:00
drh
9a8b9ec51c Be sure to hold the database connection mutex while calling sqlite3VdbeExpand() 
from within sqlite3_expanded_sql().

FossilOrigin-Name: 527b5ba68c0b0185958b945b197f9022951d9379
 2016-07-22 20:45:03 +00:00
drh
8d85364261 The sqlite3_expanded_sql() function compiles, but always returns NULL, when 
the SQLITE_OMIT_TRACE compile-time option is used.

FossilOrigin-Name: 53c25ebe34e6776a12260078852973b1d581d20f
 2016-07-15 10:01:06 +00:00
mistachkin
0129a54a16 Fix copy/paste typo in the new sqlite3_expanded_sql() function. 
FossilOrigin-Name: e7d18c70d2b8f09c9f5b978fe3d69d1088e42322
 2016-07-14 09:22:16 +00:00
drh
fca760c841 Add the sqlite3_expanded_sql() interface. Refinements to the 
sqlite3_trace_v2() interface to make it more useful.

FossilOrigin-Name: 99ee7ee58d45b29a0000492306ddc0b90563ff51
 2016-07-14 01:09:08 +00:00
drh
a7c90c42ea Change the sqlite3BtreeKeySize() interface into sqlite3BtreeIntegerKey() and 
make it only work for table btrees.  Change sqlite3BtreeDataSize() into
sqlite3BtreePayloadSize() and make it work for all btrees.  Combine
sqlite3BtreeDataFetch() and sqlite3BtreeKeyFetch() into a single
sqlite3BtreePayloadFetch() routine.  These changes seem to make the
b-tree interface more rational and they reduce both binary size and
CPU usage.

FossilOrigin-Name: bef35e18dd19732f7859287b097feeb593e5900f
 2016-06-04 20:37:10 +00:00
drh
f431a87c7c Performance optimization and size reduction on the freeP4() routine. 
FossilOrigin-Name: 4dc56e8684e0c74fb311c7f0ef1c367da8c7bf70
 2016-05-20 15:53:47 +00:00
drh
c310db39ff Rename the OP_MX_JUMP macro to SQLITE_MX_JUMP_OPCODE to avoid confusing the 
opcode name generator.

FossilOrigin-Name: e554a4c38bda9c73bf129bb7c665c53ccc4d96a8
 2016-04-11 16:35:05 +00:00
drh
7cc84c2cdd Remove the VdbeOp.opflags field and its associated initialization overhead. 
Update mkopcodeh.tcl to reorder opcode numbers to help the resolveP2Values()
routine run faster.

FossilOrigin-Name: 099478fa7521ba52262ef2bf24dd8f0114ce92e1
 2016-04-11 13:36:42 +00:00
drh
be5000d6bf Instead of just commenting out the unneeded code in the previous check-in, 
remove it completely.

FossilOrigin-Name: 8415d4848ab36ca33b23d1fad6b063544de04a3b
 2016-04-07 14:05:20 +00:00
drh
3b42be9178 Remove an unnecessary test for a NULL pointer in freeP4(). 
FossilOrigin-Name: e84e88e31b67afe42e2494d984ab1cafd107465a
 2016-04-07 14:01:10 +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
dbf8a16cb3 Merge 3.12.0 beta changes from trunk. 
FossilOrigin-Name: 3296a0ceedef43c2790f0b36471f91138a575243
 2016-03-21 15:32:19 +00:00
drh
3cdce92c38 Remove an unreachable branch. Improvements to comments. 
FossilOrigin-Name: c5677ecd5cd2637d92a831ec6bd5b002f8d75626
 2016-03-21 00:30:40 +00:00
drh
9f6168b6a3 Change the Vdbe.aMem array so that it is zero-based instead of one-based. 
FossilOrigin-Name: e07b0c47eb5a39623f5fe0e66b939bba0906691c
 2016-03-19 23:32:58 +00:00
drh
f71a366407 Some pragmas can be reused without an automatic reprepare. 
FossilOrigin-Name: db1ce7e13e656fcd2766f1b1f225cbfefe8f73ad
 2016-03-16 20:44:45 +00:00
drh
d3e1af4aa0 Merge all the latest changes from trunk. 
FossilOrigin-Name: b86590043e17705ada90562cf30f69b3e3ef65a4
 2016-02-25 18:54:30 +00:00
drh
b052958657 Remove code not needed now that synchronous=OFF database files no longer 
trigger the use of a master journal.

FossilOrigin-Name: aa9f4c622af191edbeb6a535942944f8c91f5c37
 2016-02-22 23:44:42 +00:00
drh
b9626cfa70 Always use the sqlite3VdbeDeleteAuxdata() routine for clearing auxdata on 
function parameter, rather than having a separate deleteAuxdataFromFrame()
for doing the job for trigger frames.

FossilOrigin-Name: 64386fa339adb91439da979d74062f67a6ec68fd
 2016-02-22 16:04:31 +00:00
drh
8e6cf0a7c5 Avoid creating a master journal unless two or more databases in the 
transaction can actually benefit from that master journal.

FossilOrigin-Name: 3ed1890612bd45bd9c72f670d2cbb0b8fbd35d92
 2016-02-22 14:57:38 +00:00
dan
3200132add Use a separate list of aux-data structures for each trigger program at the VDBE level. Fix for [dc9b1c91]. 
FossilOrigin-Name: c4295725015d394f01b8563f47236e0890f1cc0d
 2016-02-19 18:54:29 +00:00
mistachkin
fad3039c51 Enhance ability to debug out-of-memory errors. 
FossilOrigin-Name: 6a9c4a3ebfb7cc0738ef6634440ccab44a21ff28
 2016-02-13 23:43:46 +00:00
drh
1a606f8246 Merge enhancements and fixes from trunk. 
FossilOrigin-Name: f040a5bb62f3473fba6450c97c68f538d1df21ef
 2016-02-09 15:44:18 +00:00
drh
2fade2f791 Make sure every co-routines has its own set of temporary registers and does 
not share temporaries, since a co-routine might expect the content of a
temporary register to be preserved across an OP_Yield.
Proposed fix for ticket [d06a25c84454a].

FossilOrigin-Name: ca72be8618e5d466d6f35819ca8bbd2b84269959
 2016-02-09 02:12:20 +00:00
drh
0ac7cfaf99 Merge enhancements from trunk. 
FossilOrigin-Name: a533608cb0de3cbc1e28a794aab99864b8c249f4
 2016-02-05 14:15:34 +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
b84e574c89 Further performance improvements that fall out of the mallocFailed changes. 
FossilOrigin-Name: d94416ddca8f7ed727dd335d38155ea5945a86b7
 2016-02-05 02:42:54 +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
1b32554b80 Enhance the internal sqlite3VdbeAddOpList() interface to automatically update 
jump destinations.  Use this feature to simplify the AUTOINCREMENT code
generator.

FossilOrigin-Name: ae8b9d2edf1b5aef6108e729754911db7682b6a3
 2016-02-03 01:55:44 +00:00
drh
33c1eb6477 Merge all recent enhancements from trunk. 
FossilOrigin-Name: f3f9200115caf4b356f90ec97c351d1afbcb9bf6
 2016-02-02 02:22:30 +00:00
drh
ed94af5eb9 Number VDBE opcodes starting with 0 instead of 1, as this obviates the 
lower-bound test on "switch(opcode){...}", making the code smaller and faster.

FossilOrigin-Name: 4c9222f75bfac47f5422fff86b2d69a61933b3a2
 2016-02-01 17:20:08 +00:00
drh
b0c886510f Minor simplification to the OP_AutoCommit opcode. Fix some code comments 
related to transaction control.

FossilOrigin-Name: a9b6a0672f84dd205f9333951e4c2a608d027d71
 2016-02-01 13:21:13 +00:00