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Code Activity
19,138 Commits 1,608 Branches 185 Tags
98b677f2cb15b1dff79920237b9961d7b5c05a5a
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13138 Commits

Author SHA1 Message Date
drh
a582b01698 Simplifications to the way UnpackedRecord objects are allocated. Smaller 
and faster code that also fixes a subtle (currently unreachable) bug.

FossilOrigin-Name: f7ab01f254cd9d7006b8dec29adb234a671b8e6f
 2016-12-21 19:45:54 +00:00
drh
f99dd359d0 Change the OP_IfNotZero opcode so that it decrements register P1 by 1 rather 
than the value in P3, and so that it only decrements if originally positive.
This avoids decrementing the smallest 64-bit signed integer.

FossilOrigin-Name: 165c044686212fbf7182dd560ad1e57eb4cc9838
 2016-12-18 17:42:00 +00:00
dan
11da002c02 Fix a problem in the shell tools readfile() command causing blobs to be 
truncated at the first embedded 0x00 byte in release builds, or an assert() to
fail in a debug build.

FossilOrigin-Name: 8dedd6ad44bd1d103dced9d1350188cb2327128d
 2016-12-17 08:18:05 +00:00
drh
d47c6c495d Add the ".lint fkey-indexes" command to the command-line shell. 
FossilOrigin-Name: 94689e3bdac2eabbcf1a51d741c2604ed4bd8a40
 2016-12-16 18:43:49 +00:00
drh
3fd9f33bd1 Fix minor issues with the ".lint" command implemention in the shell and 
the shell help text related to ".lint".

FossilOrigin-Name: 1268dc77712d85de0b62332c88b22f7489f4e87f
 2016-12-16 18:41:11 +00:00
drh
186c930702 Built-in PRAGMA statements without side-effects can be invoked as 
table-valued functions by prefixing their name with "pragma_".

FossilOrigin-Name: d66ec5cfb67c6c8134fb642e0c2f72113fe1b7fd
 2016-12-16 18:14:19 +00:00
dan
3c7ebeb548 Change ".fkey_missing_indexes" to ".lint fkey-indexes". 
FossilOrigin-Name: ee621ade38c11806e1df57c459da5f018a6d0670
 2016-12-16 17:28:56 +00:00
dan
dd9e0be46a Update .fkey_missing_indexes to use the built-in pragma vtabs. 
FossilOrigin-Name: 3ab05987b0cc12af64bf32d885d04aff45d7a77c
 2016-12-16 16:44:27 +00:00
dan
c17f6255a4 Merge the pragma-as-vtab change into this branch. 
FossilOrigin-Name: 4ba45e722371ca4343e3563e7e1c2896b48c9a87
 2016-12-16 16:13:45 +00:00
dan
69b9383edf Fix a problem causing the planner to generate sub-optimal plans for some queries 
that use recursive WITH sub-queries with LIMIT clauses.

FossilOrigin-Name: 053a149cc8244a7f85137129cfcb8622efe90306
 2016-12-16 15:05:40 +00:00
drh
d8b7200b84 Fix an error in the way the "schema" argument to some pragma virtual tables 
is handled.

FossilOrigin-Name: 546821e29edb0282a4b1d8f49512e36027a6bf6d
 2016-12-16 04:20:27 +00:00
drh
30776acd74 Simplifications to facilitate full test coverage. 
FossilOrigin-Name: 01afc515970a868c6a36d9a598453d0fde9e39ca
 2016-12-16 02:31:50 +00:00
drh
9a63f09204 Minor bug fixes and enhancements to the pragma eponymous virtual tables. 
FossilOrigin-Name: 3f8f461504139a4efea0e033e3a274cc4b2d3072
 2016-12-16 02:14:15 +00:00
drh
c06bbceb9c Merge enhancements from trunk, and especially the ability to use 
temp.sqlite_master as an alias for sqlite_temp_master.

FossilOrigin-Name: 994a4401f5c34fed17af420761291b03072a5ea1
 2016-12-16 01:09:22 +00:00
drh
e0a04a36a6 All temp.sqlite_master to be used as an alias for sqlite_temp_master. 
FossilOrigin-Name: 8d646905b830d5bb29092e103ac5cb499b3c7e5a
 2016-12-16 01:00:21 +00:00
drh
ae7045cd53 Fix the cost estimation in the BestIndex method of the eponymous pragma 
virtual table implementation.

FossilOrigin-Name: 7126807a186746a8663fbaa267d63214d06476e4
 2016-12-15 21:33:55 +00:00
drh
d7175ebeaf The pragma as eponymous virtual table mechanism now appears to work. 
FossilOrigin-Name: 2c274a1a7b57ef1208901fbc1d96d39c0d492652
 2016-12-15 21:11:15 +00:00
drh
2fcc1590c4 Code to automatically create eponymous virtual tables for read-only pragmas. 
Compiles, but does not yet work.

FossilOrigin-Name: 988a61e8b03f302c69d11898d1ea95f002cba1a5
 2016-12-15 20:59:03 +00:00
drh
35a1895990 Do exponential rather than linear expansion of the SrcList.a array when 
appending new elements, to reduce the number of malloc() calls.

FossilOrigin-Name: 4e3749127e7249f46e17bfabc614b0876f60565a
 2016-12-15 18:59:14 +00:00
drh
c232aca184 Do more pragma processing from tables rather than in-line code. 
FossilOrigin-Name: a88ca3524b97f296dffc68335466b3767a681747
 2016-12-15 16:01:17 +00:00
dan
f9647b6625 Add the -groupbyparent option to the ".fkey_missing_indexes" command. 
FossilOrigin-Name: 976c51b4836dfba2ce9b246334a85bda08ac526f
 2016-12-15 06:01:40 +00:00
dan
35ac58eabc Add the experimental ".fkey_missing_indexes" command to the shell tool. To 
identify indexes that should be created on child keys if FK processing is to
be enabled.

FossilOrigin-Name: 7df23aca1f7c7b769d614d740b3fda3073f46ba9
 2016-12-14 19:28:27 +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
drh
d07df8e76a Increase the size of the reference count on Table objects to 32 bits. 
FossilOrigin-Name: d08b72c38ff6fae6ddf7dc84a54f6d7189876289
 2016-12-14 13:54:25 +00:00
drh
ac178b3d7f Three times faster sqlite3SrcListAppend() in the common case by avoiding the 
call to sqlite3SrcListEnlarge() for the first allocation.

FossilOrigin-Name: 0ea2762f1d8f6a93ae2ee3b7b835927a474c6f66
 2016-12-14 11:14:13 +00:00
drh
8a123d60a8 Fix the optimization that prevents writing freelist pages to the journal. 
FossilOrigin-Name: 6aa9b26544cbd0b41115c5f127dcf9a286d17e2b
 2016-12-14 10:30:12 +00:00
drh
79f20e96dc In the command-line shell, in the output of the ".dump", ".schema", and 
".fullschema" commands, convert CREATE TABLE statements that appear to come
from shadow tables into CREATE TABLE IF NOT EXISTS statements.

FossilOrigin-Name: c7021960f5c070fb5c9db9e41b4000d3dc065f42
 2016-12-13 23:22:39 +00:00
drh
380c08eaad Fix harmless compiler warnings. 
FossilOrigin-Name: ed2c9f3738c96d8e3dbece7ccb721cb1a8ae8fac
 2016-12-13 20:30:29 +00:00
drh
fc4111f7d6 Convert sqlite3PagerGet() into a pointer-dispatched virtual method. This 
makes it about 25% faster.

FossilOrigin-Name: 7f88bb44129a0cd36e27e00dc7c37e87cf3c90f7
 2016-12-13 18:47:54 +00:00
drh
cbed604f52 In the pager, avoid checking for the illegal page number 0 except when creating 
a new page.

FossilOrigin-Name: dee20ba982125ea98c280ad1571789af0f393903
 2016-12-13 18:34:01 +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
d5df3ff2cc Further refinements to the virtual method implementation of 
sqlite3PagerGet().

FossilOrigin-Name: 67df44464847b43f8c0b186157e31cc66c1e5796
 2016-12-13 15:53:22 +00:00
drh
12e6f68279 Make the sqlite3PagerGet() interface into a virtual method, with different 
implementations based on the current state of the pager.  This gives a small
performance increase by avoiding unnecessary branches inside the various
methods.

FossilOrigin-Name: df5bb90d208e0633056389e97696d260e3830e8d
 2016-12-13 14:32:47 +00:00
drh
2a70254f74 Remove unnecessary MemPage initialization resets in the autovacuum ptrmap 
processing.

FossilOrigin-Name: 1b36fbb9f05f3a5844e198b489bff36ef6cd908c
 2016-12-12 18:12:03 +00:00
drh
5fa3d6ec3b Faster operation for large in-memory databases. 
FossilOrigin-Name: 9675518b33e8d40769daefb860dc748113f750b6
 2016-12-12 16:08:44 +00:00
drh
6606586d81 Performance optimization in sqlite3PagerWrite(). 
FossilOrigin-Name: d4dff10a3d4edf8e1cc77c0a4f185d33f2c2e953
 2016-12-12 11:05:15 +00:00
drh
585a59795c Updates to the tokenizer for EBCDIC. No changes for standard builds. 
FossilOrigin-Name: 4fc6580ffa7232aaf751f38f90c45edc8863abe5
 2016-12-12 01:53:36 +00:00
drh
77dc0ed621 Size and performance optimization in btreeInitPage() in the freeblock 
validation step.

FossilOrigin-Name: 57deb1b412e0c328528f2b4d697e326bfd028dca
 2016-12-12 01:30:01 +00:00
drh
f0bc50aa3a Change the order of comparison for divider cell overflow in balance non-root 
to avoid a (harmless) reference to an uninitialized variable.

FossilOrigin-Name: f9f2e23bbd68a8994621623446868d666df52eff
 2016-12-12 00:58:40 +00:00
drh
8c730bc5c5 Avoid an unnecessary memset() in the sqlite3BtreeInsert() routine. 
FossilOrigin-Name: 35ecd4ebc55579175f7c934e4eb1edb969008428
 2016-12-10 13:12:55 +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
719da30d53 Avoid signed integer overflow when dealing with a LIMIT and OFFSET whose 
sum exceeds the maximum integer value.

FossilOrigin-Name: c9bdf7adb4745cfaf23d9afd496e71fa37793108
 2016-12-10 04:06:49 +00:00
drh
2d08343a91 When doing the sqlite3BtreeInsert() overwrite optimization, make sure the 
memcpy() does not extend off the end of the page.

FossilOrigin-Name: 684ef4582ed19b2af22dda6fc085c70464f92f1b
 2016-12-09 19:42:18 +00:00
drh
f923825424 Additional comments and an assert on the sqlite3BtreeInsert() overwrite 
optimization.

FossilOrigin-Name: c1f0ae9d2981a19875103750379ad26f2575f878
 2016-12-09 18:09:42 +00:00
drh
80159da6c6 In sqlite3BtreeInsert() when replacing a re-existing row, try to overwrite 
the cell directly rather than deallocate and reallocate the cell.

FossilOrigin-Name: 0b86fbca6615ccf1f3a62614db577a8acbec6d9e
 2016-12-09 17:32:51 +00:00
drh
a2ee589c46 Avoid unnecessary zeroing of fields in the MemPage object that are going 
to be reinitialized before use anyhow.  A smaller and faster binary results.

FossilOrigin-Name: 01ada3d1068476f90dcae02cb089001ea4bcc23d
 2016-12-09 16:02:00 +00:00
drh
e0568d6fb8 Fix an obscure problem in range estimation with STAT4. 
FossilOrigin-Name: 1f16c9a76bc48331799f33b30d143c632fe0e7db
 2016-12-09 00:15:17 +00:00
drh
2700acaacd More changes to take advantage of the sqlite3VdbeAppendP4() method. 
FossilOrigin-Name: 83bc5e40af9b20afeed008bf3e2669b7ac9e2dc8
 2016-12-08 01:38:24 +00:00
drh
f14b7fb73b Add the sqlite3VdbeAppendP4() method for adding P4 content to the most recently 
coded instruction.

FossilOrigin-Name: 28883e8f3e92a8015fb5f6c8ae8580833931543d
 2016-12-07 21:35:55 +00:00
drh
861b1307cb The use P4_DYNAMIC in place of the P4_MPRINTF operand type. 
FossilOrigin-Name: 3954f83798ed78527280c9db6360c62a5134b9ec
 2016-12-07 20:22:31 +00:00