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21,092 Commits 1,607 Branches 185 Tags
d901b168b58bb82192bcfc5dcb3b7ae316af1497
Commit Graph

441 Commits

Author SHA1 Message Date
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
drh
c5db1d4b4c Rearrange some internal fields in the sqlite3_stmt object to avoid a harmless 
TSAN warning.

FossilOrigin-Name: e0b116edd64a55c971c368685aa343cb6beed0f1
 2016-03-16 00:36:19 +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
drh
26bcc7cf40 Ephemeral tables used to hold manifested views may not be unordered since 
they might be subject to an ordered comparison if they are part of a join.

FossilOrigin-Name: 3ef6a3153267d5328202fea24fd29ff4d5409295
 2016-02-26 04:13:39 +00:00
drh
d3e1af4aa0 Merge all the latest changes from trunk. 
FossilOrigin-Name: b86590043e17705ada90562cf30f69b3e3ef65a4
 2016-02-25 18:54:30 +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
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
drh
33c1eb6477 Merge all recent enhancements from trunk. 
FossilOrigin-Name: f3f9200115caf4b356f90ec97c351d1afbcb9bf6
 2016-02-02 02:22:30 +00:00
dan
5b6c8e4e1d A different way to clear the subtype on VDBE registers when the value of the register is overwritten with new content. To fix [[f45ac567eaa9f93]. 
FossilOrigin-Name: 2e9fb1295cd31fc29c97444c3dec82fef68e939f
 2016-01-30 15:46:03 +00:00
drh
4b09ec6e11 Add the BTREE_FORDELETE and BTREE_AUXDELETE flags to the b-tree layer interface 
and use them.  Add assert() statement to verify that they are correct.

FossilOrigin-Name: 85c467041c9378cae3038756da815e9117ee8c7d
 2016-01-30 13:32:30 +00:00
drh
945d302215 Different comment on the alternative cursor fields of VdbeCursor. 
FossilOrigin-Name: 6e3dcb6d7d960bb513d9a4a002b6cf5ab7159686
 2016-01-29 20:58:40 +00:00
dan
de892d9660 Experimental attempt to make better use of covering indexes within OR queries. 
FossilOrigin-Name: a323ac3a9d42bd5cb38d724c7e1180584b91054c
 2016-01-29 19:29:45 +00:00
drh
b89aeb6aa2 Add assert() statements on the nExtraDelete variable in vdbe.c to try to verify 
that the FORDELETE and IDXDELETE flags are being generated correctly.  Those
flags are not currently generated correctly, and so the assert()s trip on this
check-in.

FossilOrigin-Name: dde1db0dd2e2cf04706117629756c352b178ebb8
 2016-01-27 15:49:32 +00:00
drh
604ce70448 Merge recent enhancements, and especially the WAL overwrite change, from trunk. 
FossilOrigin-Name: c4a858b228a164be2f89f5b01833f0b5e0d7735b
 2016-01-11 13:10:41 +00:00
dan
20d876fa1c Have the vdbe layer call sqlite3BtreeEnter() on all b-trees in use from within sqlite3VdbeExec() even in SQLITE_THREADSAFE=0 builds. This ensures that BtShared.db is set correctly. 
FossilOrigin-Name: d0214602d44d6b84b7463d530720e2560aee6edf
 2016-01-07 16:06:22 +00:00
drh
1bb15fc973 Merge recent enhancements from trunk. 
FossilOrigin-Name: d1a1278d7f3306536dc9cbd8fb300898f1e373e8
 2015-12-02 20:40:26 +00:00
drh
c960dcbace Refactor the VdbeCursor object. It is now slightly smaller and faster and is 
easier to understand.

FossilOrigin-Name: 9b1d174d862500a627840008ffac4c8419dc97e2
 2015-11-20 19:22:01 +00:00
drh
d286b9fb7d Merge all the latest enhancements from trunk. 
FossilOrigin-Name: 395a153ff7b3c7a72f3d02b6fe76d72383f4e480
 2015-10-30 16:50:00 +00:00
drh
0030aaad67 Merge recent enhancements from trunk. Version now 3.9.1. 
FossilOrigin-Name: 26fa091d68e89a0b6af61ba706d23a9f37e8025a
 2015-10-16 20:53:57 +00:00
drh
be37c12423 Have the sqlite3VdbeSerialType() function go ahead and compute the serial 
length as well, since it is always needed.  This avoids unnecessary calls
to sqlite3VdbeSerialTypeLen().

FossilOrigin-Name: 2ad72be12477b0e8e33e56a9a17e29abbd283ec1
 2015-10-16 14:54:17 +00:00
drh
faf3727904 Use a lookup table to compute the content length for serial types less 
than 128, for a 1.2% performance improvement.

FossilOrigin-Name: 3395724814099d28829ef6875ca1ba77d6fe7ffa
 2015-10-16 14:23:42 +00:00
drh
81966bea22 Merge enhancements from trunk. 
FossilOrigin-Name: 66fe06832614010d3156d7b21a760af9957018cc
 2015-09-15 17:31:47 +00:00
drh
91762f2d18 Merge the latest trunk enhancements. 
FossilOrigin-Name: 22ce9218fb2bb56cc5dd4e32077a16f669250d5f
 2015-09-14 10:47:29 +00:00
drh
bcdf78a61c Experimental implementation of sqlite3_result_subtype() and 
sqlite3_value_subtype() interfaces.

FossilOrigin-Name: 7b5be299c617a3d3ed327ed30ef0a66a62c85b1f
 2015-09-10 20:34:56 +00:00
drh
f7e369070e Convert the hint expression of the CursorHint opcode into a string for 
display by EXPLAIN.

FossilOrigin-Name: 206884718782331a7aaacc2c811e4e9d2effae91
 2015-08-13 21:32:41 +00:00
drh
59b4bd4840 Merge all the latest enhancements from trunk. This merge include FTS5 
and a number of notable performance enhancements.

FossilOrigin-Name: 39936b33b0668aad81aa574d4d74c92b0ddd218a
 2015-06-30 16:29:59 +00:00
drh
9c7c913cd6 Cache the sqlite3_context structure in the P4 operand of VDBE programs 
for faster SQL function dispatch.

FossilOrigin-Name: 2abc44eb3b9d489321baa50bc25e17dafbda3687
 2015-06-26 18:16:52 +00:00
drh
5600329bc0 Merge all recent enhancements and fixes from trunk. 
FossilOrigin-Name: 199bfb67fdf642cca6cd5d460fa4dc602b94837a
 2015-06-17 18:18:51 +00:00
drh
97bae794c2 Add a new opcode to the VDBE that gives the b-tree a hint about the set 
of columns in a table or index that are actually used by the query.

FossilOrigin-Name: f167bba446b78dd7538d0b2bae3e6678f3b1ba28
 2015-06-05 15:59:57 +00:00
drh
893ca50d0f Merge enhancements from trunk, including the new sqlite3_value_dup() API and 
the addition of the apSqlParam field in the sqlite3_rtree_query_info object
of R-Tree.

FossilOrigin-Name: cdc0ca6fb36e787b981fb544a27c6df838f85704
 2015-05-22 23:26:18 +00:00
drh
4f03f413bc Add the sqlite3_value_dup() and sqlite3_value_free() interfaces. Use 
these interfaces to enhance R-Tree to add the
sqlite3_rtree_query_info.apSqlParam field.

FossilOrigin-Name: a7ee40c4fc62843ac5b96ba47ca14a66e8cd6961
 2015-05-20 21:28:32 +00:00
drh
adf3bf5811 Merge recent trunk changes, include the R-Tree enhancement that allows 
8-byte BLOB arguments to geometry functions, and the fix for the TEXT affinity
problem that could cause corrupt indexes.

FossilOrigin-Name: 0a0de8b72ca24f287f9c84766a14e12ea4564b59
 2015-05-19 22:42:23 +00:00
drh
22c17b8bf5 Simplifications to error message processing. Fix a possible problem in error 
message formatting when vacuuming a database with a corrupt schema.

FossilOrigin-Name: 56ef98a04765c34c1c2f3ed7a6f03a732f3b886e
 2015-05-15 04:13:15 +00:00
drh
edea911945 Merge all recent trunk enhancements into the sessions branch. 
FossilOrigin-Name: 54aaa6f29ad1bf84148c2403eed77e8311f68d66
 2015-03-24 19:02:13 +00:00
drh
086723a4a8 Replace the Vdbe.inVtabMethod field with the sqlite3.nVDestroy counter. 
FossilOrigin-Name: 9faefb96272967e731e83ef516a8c1e1b876391b
 2015-03-24 12:51:52 +00:00
drh
878acb32ef Merge all recent trunk changes into the sessions branch. 
FossilOrigin-Name: f36bb5fa5c5e3430808fe35d58f45559a216d341
 2015-02-21 15:13:50 +00:00
drh
983b5ee73d Make sure the prepared statement auto-resets on extended error codes 
of SQLITE_BUSY and SQLITE_LOCKED even when compiled using
SQLITE_OMIT_AUTORESET.

FossilOrigin-Name: 3c6ca414879feb1f5d31d5fd95a1737530aca624
 2015-02-13 12:05:56 +00:00
drh
04e8a58669 Merge recent trunk enhancements, including the read-after-ROLLBACK change 
and the addition of sqlite3_stmt_scanstatus() support, as well as various
minor bug fixes.

FossilOrigin-Name: f09055f3c4348264c7336f90646375f0d98b061e
 2014-11-18 21:20:57 +00:00
drh
c6652b1efe Add the SQLITE_SCANSTAT_SELECTID metric. Use it to improve the 
".stmtscan on" output in the shell.

FossilOrigin-Name: 64ad5761a841f71530d41565b9fbe9d19c2d6aff
 2014-11-06 04:42:20 +00:00
drh
518140ed04 Change the SQLITE_SCANSTAT_EST parameter so that it returns a double for 
the estimated number of output rows per loop, rather than a 64-bit integer.
Revise the output format for the ".scanstats on" in the shell to make use
of this new capability.

FossilOrigin-Name: f9684000665ae7ef6f89c3773612b8286b8f545a
 2014-11-06 03:55:10 +00:00
dan
037b5324bd Remove unused variable from struct WhereInfo. Add some explanatory comments to new code. 
FossilOrigin-Name: f5313e0c680d9baebefb1cf50ddadedd4418a334
 2014-11-03 11:25:32 +00:00
dan
43764a8efb Minor performance enhancements to SQLITE_ENABLE_STMT_SCANSTATUS code. 
FossilOrigin-Name: f13d6ba8a72d75838c4aaf85326c1129da027f8b
 2014-11-01 21:00:04 +00:00
dan
6f9702ed4d If SQLITE_ENABLE_STMT_SCANSTATUS is defined, record the number of times each VDBE opcode is executed. Derive the values returned by sqlite3_stmt_scanstatus() from these records on demand. 
FossilOrigin-Name: 9ea37422a8cc2fce51bb10508e5e90f40fd4b511
 2014-11-01 20:38:06 +00:00