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optimize-null-values
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86 Commits

Author SHA1 Message Date
drh
db222adfd3 Fix errors in the EBCDIC upper-case to lower-case translation table. 
FossilOrigin-Name: 905009f6723040d4da4776b6fd07e83c628dea2b
 2015-02-19 17:16:14 +00:00
drh
3bd1791dfb Add the SQLITE_CONFIG_PMASZ start-time option. 
FossilOrigin-Name: acb0d1e8324f19da3d4d577d58748848de1bcef7
 2015-01-02 15:55:29 +00:00
drh
86a11b8a6a Fix harmless typos in comments. 
FossilOrigin-Name: 94c564da4c2cf5dffe58fdf7a180e9ba4cc3de69
 2014-11-07 13:24:29 +00:00
drh
4d9f188f00 Add various requirements evidence marks for sqlite3_config() options. 
FossilOrigin-Name: d423349d2cd8bc7e04f3d90ca7bab11e1ad86e25
 2014-11-04 17:23:24 +00:00
drh
00729cba46 Updates to documentation and requirements marks. No code changes. 
FossilOrigin-Name: 0f8102d71a0ee828629f037775ad86fe2a544120
 2014-10-04 11:59:33 +00:00
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
c007f61bb0 Repurpose the SQLITE_TESTCTRL_FAULT_INSTALL test-control to register a 
callback to be invoked by sqlite3FaultSim().  That test-control has been
unused since 2008-06-20 and was never used in any official release.

FossilOrigin-Name: 0d43a7ad9abe821e33e0bf83a997aa4461b1e3f2
 2014-05-16 14:17:01 +00:00
drh
09fe614372 Add a new sqlite3_test_control() that indicates that database files are 
always well-formed.  Use this during testing to enable assert() statements
that prove conditions that are always true for well-formed databases.

FossilOrigin-Name: 15e4f63d1f3cbcd0aa789fd3e460cd6e4d3338f9
 2013-11-29 15:06:27 +00:00
drh
9b4c59fa1b Refactoring the mmap interface. The controlling pragma is now "mmap_size" 
instead of "mmap_limit".  Also change SQLITE_CONFIG_MMAP_LIMIT and
SQLITE_FCNTL_MMAP_LIMIT to SQLITE_CONFIG_MMAP_SIZE and
SQLITE_FCNTL_MMAP_SIZE, respecctively.  
The default mmap_size is now always 0, meaning that
memory mapped I/O is off by default.  There is a new compile-time option
SQLITE_MAX_MMAP_SIZE that determines a hard upper bound on the mmap_size.
Setting SQLITE_MAX_MMAP_SIZE to zero disables the memory-mapped I/O logic
and causes it to be omitted from the build.  An extra argument is added
to SQLITE_CONFIG_MMAP_SIZE that can optionally lower the SQLITE_MAX_MMAP_SIZE
at start-time. The SQLITE_MAX_MMAP_SIZE is zero for platforms where we 
know that it does not work, meaning that it cannot be turned on by mistake
on those platforms.

FossilOrigin-Name: ea1404a10abd7f68e1f8e0708c8a3199d1f79665
 2013-04-15 17:03:42 +00:00
drh
a1f42c7c32 Add the SQLITE_CONFIG_MMAP_LIMIT configuration option for overriding the 
SQLITE_DEFAULT_MMAP_LIMIT compile-time setting.  Enhance "PRAGMA mmap_limit"
so that without a specific database name, it sets the limit on all database
files and changes the default for any future databases that might be added
using ATTACH.

FossilOrigin-Name: 78141d0a16dd1d56b575fccd149de7fa789cb06c
 2013-04-01 22:38:06 +00:00
dan
ac45593931 Add an option to register global hooks used for logging all SQL executed by an application. 
FossilOrigin-Name: cd501bbccf3e62b002317592cc331770b32c129a
 2012-11-26 19:50:41 +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
13e0ea9923 Fix harmless compiler warnings. 
FossilOrigin-Name: 1e6a698aab9270637d3ea00fd6b0e94f4172e875
 2011-12-11 02:29:25 +00:00
dan
22e21ff4fc Experimental change to the pcache interface to allow page buffers to be allocated separately from their associated container structures. 
FossilOrigin-Name: c275c9d323cb1dccb031b199d413ac3a0b244fea
 2011-11-08 20:08:44 +00:00
drh
432e0bc6dc Increase the default lookaside cache line size from 100 to 128 bytes. 
FossilOrigin-Name: db019465036171fcad31181bec7d6ac185f50430
 2011-09-19 13:01:53 +00:00
dan
dec6f79d40 Add a missing initializer for sqlite3GlobalConfig.bLocaltimeFault. 
FossilOrigin-Name: 7fe8ba2ec762d258b04e775766c82e5e541ab5d1
 2011-06-21 15:27:54 +00:00
dan
cd74b611f4 Add the start of the "uri-filenames" feature. 
FossilOrigin-Name: b8a8132e7148a7c90ca1352f20ab71d97b0bc4b0
 2011-04-22 19:37:32 +00:00
drh
094430eb71 Make the result of an IN or NOT IN expression with an empty set on the 
right-hand side always either false or true, respectively, even if the
left-hand side is NULL.  Ticket [80e031a00f45dc]

FossilOrigin-Name: c288ac644d0bfda2b9bc204dc86df8e74d4f6843
 2010-07-14 18:24:06 +00:00
drh
f83dc1ef3f Remove global variables when compiled with SQLITE_OMIT_WSD 
FossilOrigin-Name: dd10a547f10364058025c48b28d8fd240bf46aff
 2010-06-03 12:09:52 +00:00
drh
3f28070109 Add a new, experimental logging interface designed to aid in debugging of 
deeply embedded projects that use SQLite.

FossilOrigin-Name: 103321e37ae46eacfad4e127d13477ad5dd02bab
 2010-02-18 18:45:09 +00:00
drh
af2b572028 Use the sqlite3CtypeMap[] to improve the speed and reduce the size of the 
logic in the tokenizer that recognizes identifiers.

FossilOrigin-Name: 1c9243b0760741f48b15efb0da661255177aed8b
 2009-11-16 15:11:51 +00:00
drh
a6c2ed91ca Optimizations to the main loop inside sqlite3VdbeExec() to help VDBE byte code 
run a few percent faster.

FossilOrigin-Name: d622ac6ac7a297754494d3a33dbaeea02836272e
 2009-11-14 23:22:23 +00:00
dan
e1ab219309 Add tests to check that sqlite recovers from an error in sqlite3_initialize() correctly. 
FossilOrigin-Name: 904a371c6c9d3f20332b37767b06161fa0a78113
 2009-08-17 15:16:19 +00:00
drh
9ac06509f1 Enhanced documentation and minor code tweaks in preparation for hardening 
the sqlite3_initialize/shutdown interfaces against initialization failures.

FossilOrigin-Name: 98c49e6135ae6268a80de88f8b0284f88ef32e1d
 2009-08-17 13:42:29 +00:00
drh
c7a3bb94c2 Make the pending byte adjustable via sqlite3_test_control() on all builds, 
not just on test builds. (CVS 6263)

FossilOrigin-Name: e8f192e2a93350a136d86bd9caceff65f52f3513
 2009-02-05 16:31:45 +00:00
drh
dc86e2b2cd Fix some minor compiler warnings. Added sqlite3Isalpha() for use in 
the soundex() function. (CVS 6203)

FossilOrigin-Name: bfc71edca471221add6b32b867d0b15171974eaf
 2009-01-24 11:30:42 +00:00
danielk1977
78ca0e7eb4 When not compiling for an EBCDIC system, use built-in alternatives to the tolowe 
r(), toupper() and other ctype.h library functions. Ticket #3597. (CVS 6196)

FossilOrigin-Name: 1041abd6784d283bebf646c54e93599522f7889d
 2009-01-20 16:53:39 +00:00
drh
1875f7a3db The amalgamation now compiles cleanly on GCC with options 
-pedantic-errors -Wno-long-long. (CVS 5991)

FossilOrigin-Name: 73c7302c5f76a2f61ecd75f8bda69bb500d3119c
 2008-12-08 18:19:17 +00:00
danielk1977
0a732f59b0 Add support for the SQLITE_THREADSAFE=2 and SQLITE_DEFAULT_MEMSTATUS compilation options. (CVS 5676) 
FossilOrigin-Name: 85c2a58901338c1c4652c2cbee51e5f48d289191
 2008-09-04 17:17:38 +00:00
danielk1977
075c23af26 Begin adding support for the SQLITE_OMIT_WSD macro. Some (many) WSD variables still need wrappers added to them. (CVS 5652) 
FossilOrigin-Name: 573d92abb9adb1c321ebc2fcadcf14374213b093
 2008-09-01 18:34:20 +00:00
drh
777c5386c3 Move date+time functions to start-time initialization. Additional 
start-time function cleanup. (CVS 5585)

FossilOrigin-Name: 80d6a31cb3851704c09ac9d99fe4bc241df3c180
 2008-08-21 20:21:34 +00:00
drh
70a8ca3c1e Initialize the global built-in function table at start-time 
instead of at compile-time.  This is less prone to malfunction when
compile-time parameters very. (CVS 5583)

FossilOrigin-Name: ef6936e50adb9ebea39c890167403fff01bbb5ed
 2008-08-21 18:49:27 +00:00
drh
633e6d57d9 Implement the "lookaside" memory allocation cache. Use of this cache makes 
the speed1.test script run about 15% faster.  Added new interfaces to
control the cache. (CVS 5488)

FossilOrigin-Name: e48f9697e9fea339e150ddc32940760027dd07d9
 2008-07-28 19:34:53 +00:00
drh
0a687d123e Improved enforcement of the SQLITE_LIMIT_LENGTH limit. (CVS 5368) 
FossilOrigin-Name: ee93150878436ce6e992ea8a1d348fb58b03b5e2
 2008-07-08 14:52:07 +00:00
drh
fec00eabb3 Continuing progress on the new memory allocation subsystem. Added the 
sqlite3_mem_methods structure for defining new memory allocators at
run-time. (CVS 5219)

FossilOrigin-Name: f00305f4cd2f487f660f34a21c1c24a0b37c7275
 2008-06-14 16:56:21 +00:00
drh
40257ffd0a Progress toward implementation of sqlite3_config() and a rework of the 
mutex and memory allocation subsystems.  This is an incremental check-in. (CVS 5218)

FossilOrigin-Name: a03c5af115889f477e17187a198a7d2d40bc76bf
 2008-06-13 18:24:27 +00:00