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22,813 Commits 1,608 Branches 185 Tags
3d8c92d041b380f66dc753ee38aaeb3b87d559cb
Commit Graph

2319 Commits

Author SHA1 Message Date
drh
2c79733f3c Refactoring of DISTINCT code. Change the name of the local variable 
"distinct" to "distinctTab".  Generate cleaner code w/o unnecessary P4
and P5 values on the OP_Null for WHERE_DISTINCT_ORDERED.

FossilOrigin-Name: 0cda241a2bcb3c6f2ae6c48f522780bc4eddfc02
 2012-09-20 14:26:22 +00:00
drh
ae651d614e Add comments to the WHERE_DISTINCT_* macros. No changes to code. 
FossilOrigin-Name: 82320501904f65030622a67836ba30f412169056
 2012-09-19 17:31:15 +00:00
drh
de9a7b8a94 Add the ability to disable the covering-index-scan optimization at compile-time, 
start-time, or at run-time.  Add test cases to check this configurability.

FossilOrigin-Name: ccb8ecc30c8e6c7760131250297c2e452bbac43b
 2012-09-17 20:44:46 +00:00
drh
f4af1089ab Remove obsolete bits from the bitvector that defines disabled optimizations 
in the SQLITE_TESTCTRL_OPTIMIZATIONS verb of sqlite3_test_control().

FossilOrigin-Name: 4c21ee2d26466f83dec525153e2b1506bd956701
 2012-09-17 19:12:39 +00:00
drh
4261096124 Remove an unnecessary parameter from sqlite3Utf8Read() resulting in a slight 
performance increase.

FossilOrigin-Name: 8b962c94a2f829f71efdd0ca770469b02feea3e1
 2012-09-17 18:56:32 +00:00
drh
5f08526937 Factor out the code that generates a co-routine for evaluating the SELECT 
on the RHS of an INSERT statement so that the same code can potentially
be reused in other places.

FossilOrigin-Name: a93ee09cdc15987848bf9023e69892ce9a5f989e
 2012-09-15 13:29:23 +00:00
drh
6ec6549158 Improved alignment of fields in the Expr object gives an 8-byte size 
reduction on 64-bit machines.

FossilOrigin-Name: 6b252a0d1a78db7bf2d650bafc214ea4064eef9e
 2012-09-13 19:59:09 +00:00
drh
d815f17dab Reduce the size of the Table object by 16 bytes on 64-bit machines, mostly 
by avoiding intermixing pointer fields with integer fields.

FossilOrigin-Name: 1cb9aedfcf81f0086fa741cb29a062ee87724a5e
 2012-09-13 14:42:43 +00:00
drh
a371ace426 Change boolean fields in the Column object from unsigned characters into 
bits in a single bit mask variable.

FossilOrigin-Name: 4163f5f194741bc2bdf141973912661c6aac70f1
 2012-09-13 14:22:47 +00:00
dan
7417cefec6 Update with latest trunk changes. 
FossilOrigin-Name: 87995dc9409482f0a7a367bfc51d78ac0f63b8c3
 2012-08-31 14:23:16 +00:00
mistachkin
d5578433ff Fix all known instances of 'repeated the' style typos in comments. No changes to code. 
FossilOrigin-Name: 9b19b847533f944f289d93dcdba29c0d67bf251c
 2012-08-25 10:01:29 +00:00
drh
310874ca00 Merge the latest trunk changes into the sessions branch. 
FossilOrigin-Name: aa62d6881b5aae64e15dbae70ce8e77bcc2a9f0b
 2012-08-25 01:21:36 +00:00
drh
d40e208726 Move field WhereLevel.pCovidx inside the union to WhereLevel.u.pCovidx. 
FossilOrigin-Name: b722143d075979ba3d92b7b29e576ce2307187d1
 2012-08-24 23:24:15 +00:00
dan
0efb72c969 Fix a problem to do with multi-or queries and automatic indexes. 
FossilOrigin-Name: a3e26038a1d9f3331239f777c67d1920d904aab0
 2012-08-24 18:44:56 +00:00
dan
bfca6a4066 Experimental change to support the covering index optimization for queries with OR terms in the WHERE clause that search a single index more than once. 
FossilOrigin-Name: 1dc8c7c741a82bb98a07f3fdb8142d8bc8d8a98b
 2012-08-24 10:52:35 +00:00
drh
030796df8d Further improvements to the processing of nested aggregate queries. 
FossilOrigin-Name: 3c3ffa901f5ce8a523028ff15563ce3e0f55a641
 2012-08-23 16:18:10 +00:00
drh
e22724ee54 Update the threads branch to include all the latest trunk changes. 
FossilOrigin-Name: f4125771e21f1ca29d5442b5441dacfc06b8032b
 2012-08-16 11:24:22 +00:00
drh
16de7f4d32 Merge all the latest trunk changes into the sessions branch. 
FossilOrigin-Name: fc07a4795e027108674d1d41eb4350df629ddc8b
 2012-08-15 16:21:55 +00:00
dan
428c218c90 When reusing pages as part of creating a new index, allocate the leaves from each free-list trunk page in ascending order, instead of trying to maximize localization for each individual allocation. This increases the chance that pages will be written to disk in ascending order by a large CREATE INDEX statement, improving overall performance. 
FossilOrigin-Name: d045f8b2d44e388d8c4549ff02d4ca7eff4e2038
 2012-08-06 18:50:11 +00:00
drh
2b596da8b7 Refactor field names in the SelectDest object to make them distinct and easier 
to grep for.

FossilOrigin-Name: b589f1efb3907a68058bf2ee981dca126d083e83
 2012-07-23 21:43:19 +00:00
mistachkin
da0e47109e Add Win32 support to the internal threads interface. Also, add several asserts and fix a few typos. 
FossilOrigin-Name: 793195d37109c75eba84f7190c8fe0b8722f76f7
 2012-07-21 22:49:08 +00:00
drh
f51446a38c Add an internal interface that allows the code to take advantage of multiple 
cores by pushing subcomputations off into separate threads.  The interface
is not currently used.

FossilOrigin-Name: 0e4d977a4a07d6de50acbf022c7dd947998b8d96
 2012-07-21 19:40:42 +00:00
drh
ed68801b20 Add the sqlite3_close_v2() interface (from the deferred-close branch) that 
allows close operations to happen out-of-order in bindings to
garbage-collected langauges.

FossilOrigin-Name: fb8893abeefabe9de44e34dcf4327764481189f5
 2012-06-21 15:51:42 +00:00
mistachkin
20b1ff0760 Fix spelling typo. 
FossilOrigin-Name: 6131a0002fea5d6f3b416a63a466bf2b69d1e12d
 2012-06-21 15:12:30 +00:00
drh
d1b0afc30c Fix the SQLITE_ZERO_MALLOC compile-time option so that it works on windows. 
FossilOrigin-Name: b80bc52f8964569f948c5671e9d58e4d199a08dc
 2012-06-21 14:25:17 +00:00
drh
8973a04e3b Merge all trunk changes, including the WinRT enhancements, into the 
sessions branch.

FossilOrigin-Name: c62140398344fd1a68a3e6dfe8b4fab280731ebb
 2012-06-07 23:58:36 +00:00
drh
bae591a960 Merge the latest trunk changes into shared-schema branch. Also fix a C99-ism 
in that branch.

FossilOrigin-Name: 42338e9e6979bb497823527f8f39e96f63623c59
 2012-06-05 19:20:03 +00:00
drh
4245c405ea The sqlite3_close() interface returns SQLITE_OK even if there are outstanding 
sqlite3_stmt and sqlite3_backup objects.  The connection becomes a zombie.
Resource deallocation is deferred until the last sqlite3_stmt or 
sqlite3_backup object closes.  This is intended to help SQLite play nicer
with garbage collectors.

FossilOrigin-Name: e276a02b7f54e804caa553dca99023416a415e1c
 2012-06-02 14:32:21 +00:00
drh
1b28b89319 Link the NDEBUG macro to SQLITE_DEBUG so that when SQLITE_DEBUG is defined, 
NDEBUG is automatically undefined an dwhen SQLITE_DEBUG is undefined
NDEBUG is automatically defined.

FossilOrigin-Name: 07935d10d341fe6265cfd3b09e2c4ef4005c4826
 2012-05-29 19:25:20 +00:00
drh
e56467fc9f Version 3.7.12.1 
FossilOrigin-Name: d07b7b67d1b3bf65cfe8d96d45a7f1d387bea7ce
 2012-05-22 13:01:39 +00:00
drh
3a8c4be7d4 Candidate fix for the nested aggregate query problem of ticket 
[c2ad16f997ee9c8e].

FossilOrigin-Name: f3dd1fafd4718558de1f06139419a8c560d727f5
 2012-05-21 20:13:39 +00:00
drh
a51009b251 Convert the NameContext object from using u8 booleans to using individual 
bits in a single u8 as its booleans.  This change might become a basis for
a fix for [c2ad16f997ee9c].

FossilOrigin-Name: 722260969306778029b738402f22e3c154dd77a1
 2012-05-21 19:11:25 +00:00
drh
81028a455d The former sqlite3ResetInternalSchema() routine was really two different 
routines, selected by parameter, each with a confused mission.  So split
this routine up into three separate smaller routines, calling each
separately as needed.  Hopefully this will make further refactoring and
schema reset collateral damage containment easier.

FossilOrigin-Name: aa0c3493d3647d7efe527067e9fcccefda8e3008
 2012-05-15 18:28:27 +00:00
dan
bba02a95d9 When a connection disconnects from a shared-cache database, only delete the in-memory schema if there are no other connections. 
FossilOrigin-Name: 46f4eb5430d7bc9a339cdf7124ff4bd518eaa39b
 2012-05-15 17:15:34 +00:00
drh
bd91913dc0 Import all the latest trunk changes into the sessions branch. 
FossilOrigin-Name: 87a0eab5d98fff93aa2147c04c4af27be42fb365
 2012-04-18 01:41:37 +00:00
drh
374fdce485 Improved handling of aggregate subqueries within an aggregate query. 
FossilOrigin-Name: 430bb59d798286a86c351de92c429345f016b3f0
 2012-04-17 16:38:53 +00:00
drh
89d5d6a2a7 Fix the application-defined function logic so that functions with a variable 
number of parameters can be replaced or deleted correctly.  Also refactor
some of the function-finder code for clarity of presentation.

FossilOrigin-Name: 09d5581c81fb6a9bf6a369d0abf5ef6b54637576
 2012-04-07 00:09:21 +00:00
drh
108606837e Merge all recent trunk changes into the sessions branch. 
FossilOrigin-Name: fb9b9987de965e194fef56bca563ee65c49f0950
 2012-03-30 17:30:33 +00:00
drh
f68686ae52 When a named CHECK constraint fails, include the name of the constraint 
in the error message.

FossilOrigin-Name: 1b75f301affac654bee24fa247046ea0782d3c4d
 2012-03-30 15:48:48 +00:00
drh
a748fdcc43 Evaluate typeof(X) and length(Y) where X is any column and Y is a blob column 
without actually loading X and Y from disk.

FossilOrigin-Name: b899dbeb60752843287e2c6ad3577e1d00f0d587
 2012-03-28 01:34:47 +00:00
dan
6d972c1b98 Merge the latest trunk changes into the sessions branch. 
FossilOrigin-Name: 2277c70b6f14e2f8043112a5c49a8bc18b7504f3
 2012-03-19 11:17:17 +00:00
drh
421377e67a Add the sqlite3_db_readonly() interface. This is still tentative, pending 
a closer look at other ideas to accomplish the same thing.

FossilOrigin-Name: 254f99ea9ff1534948bdb179e69ab0c940c87ec1
 2012-03-15 21:28:54 +00:00
drh
2938f924cc If a CHECK constraint is named, report that name on the error message when 
the constraint fails.

FossilOrigin-Name: 9a0f90d9deb335ac71044b8afa81538d85cc7ccf
 2012-03-07 19:13:29 +00:00
drh
ddf01aeb16 Merge in the latest trunk changes. 
FossilOrigin-Name: ff86875ca35e04cea6c3d5e1b5117a4f227a6b15
 2012-03-05 16:26:00 +00:00
drh
3fa9730273 Change the SQLITE_FCNTL_PRAGMA file-control so that it can return a string 
value.

FossilOrigin-Name: fd8d7440277b17f57a6dc0a210f42adf1fa2dcd2
 2012-02-22 16:58:36 +00:00
drh
0f198a7409 Change the ROLLBACK command so that pending statements to not block it. The 
pending statements instead return SQLITE_ABORT upon next access.  Note: This
causes separate shared-cache connections in read_uncommitted mode to abort as
well.

FossilOrigin-Name: 9b66c79e054c8a109d1ee8d35fed1c42814c330d
 2012-02-13 16:43:16 +00:00
drh
fdf1795618 Pull all the latest trunk changes into the sessions branch. 
FossilOrigin-Name: 361fb66a799f4f253e61ca94d999accde2c75b2c
 2012-02-10 17:54:52 +00:00
drh
a451017d62 Data structure cleanup. Remove unused fields. Rearrange other files for 
tighter packing and reduced memory usage.

FossilOrigin-Name: 0bc594e861ae1142e8c6c83f39b095e1432856bf
 2012-02-02 15:50:17 +00:00
drh
6c5351589c Simplified array allocation in the IdList and AggInfo objects. 
FossilOrigin-Name: 25df2a7458d025bc00380b4a0893637639f9f0d4
 2012-02-02 03:38:30 +00:00
drh
d872bb180c Remove the nAlloc field from the ExprList object. 
FossilOrigin-Name: 5963de303a9106b446a9423aa838bfdf6bc1e7f3
 2012-02-02 01:58:08 +00:00