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Commit Graph

77 Commits

Author SHA1 Message Date
drh
5e431bead8 Rename debugging defines and variables from SELECTTRACE to TREETRACE (and
similar) since the functionality has how expanded to include data structures
beyond SELECT statements.  Should not affect deliverable builds.

FossilOrigin-Name: 393fa32e188a017f431372b54037cb31e885030542f00d0bfd59da9d9db5c014
2022-04-06 11:08:38 +00:00
drh
e684ac6f12 Fix compiler warnings.
FossilOrigin-Name: 5e30c6ea707f9d381127e8b2bb59e0b39bc00997da2c14d32a0e302d0121203b
2022-03-08 13:59:46 +00:00
drh
d7e185ce5d Enhance SQLITE_TESTCTRL_LOCALTIME_FAULT so that is able to install an
alternative localtime() interface so that the localtime logic an be better
tested.

FossilOrigin-Name: 6e25cb0890e8cdc63c9a21e841844d066267fc32ad143527843f7c8d05612b53
2022-02-10 21:26:53 +00:00
drh
dcf10a1a4b Fix harmless compiler warnings. Improve the independence of some TCL tests.
FossilOrigin-Name: 1a038242dc6c0cab97dd9375acfce62aa1c386debc36aaed388d366b87ddd931
2021-10-22 11:17:29 +00:00
drh
9fdd66e3c0 Enabled the testcase() macros under SQLITE_DEBUG.
FossilOrigin-Name: 0ae8dd132db8331ca9cc42ad511066924f9d3a1d158ecdb630cebc41b6bd2493
2021-10-20 17:58:33 +00:00
drh
b9fd0101bd Back out the change that allows typeless columns in strict tables. Replace
that capability with an ANY type for strict tables that will accept any
datatype with BLOB affinity.

FossilOrigin-Name: d8fd1a2bfd51848ea612142d23475b268b3f5269e558f2e09713d1ac18b18274
2021-08-23 10:28:02 +00:00
drh
71c770fbda Improved comments. Fewer opcodes for integrity_check on strict tables.
FossilOrigin-Name: 4ee57fb588b41ab76649c605f57c7bcf5b7b638435af458d69f69a8ccbb121e8
2021-08-19 16:29:33 +00:00
drh
9e1209d111 Enhance PRAGMA integrity_check so that it verifies the datatype of
all columns in STRICT tables.

FossilOrigin-Name: 97c9248b3b81facce569bfa3fb405d44a1d1041e87132e8f649458c95620ccb2
2021-08-19 02:58:15 +00:00
drh
c2df4d6adb Recognize certain standard datatypes ("INT", "INTEGER", "REAL", "TEXT", and
"BLOB") and if a column has one of those datatypes, store the type part of
the bit-field information in the Column structure to save space.

FossilOrigin-Name: d2da62a9df63036b02dadca3798de9e623c2680b3ef0c37d2b18bb88693afd7f
2021-07-30 23:30:30 +00:00
drh
8d889afc0d Enable the sqlite3_serialize() and sqlite3_deserialize() interfaces by
default.  Omit the SQLITE_ENABLE_DESERIALIZE option and replace it with
the SQLITE_OMIT_DESERIALIZE option.

FossilOrigin-Name: 6df3b03e00b1143be8fed3a39a58ce81063020275aa1ac13d87c84f1ceda6e27
2021-05-08 17:18:23 +00:00
drh
1af3fd562f Alternative implementation of the comparison opcode speed-up of
check-in [4a8805d9a66dc888] that should pass muster with UBSAN.

FossilOrigin-Name: afb18f64541effaeaada2d72c7c91adfe5ec3e2b1418c0bc281083125fb5badb
2021-03-28 23:37:56 +00:00
drh
c0622a4d03 Alternative implementation of ".selecttrace" and ".wheretrace" that uses
a test-control rather than global variables.

FossilOrigin-Name: d36d6f2923a2393c751c0ac7634433453be20df7567fd914e57cbb1ae15f68b2
2020-12-04 01:17:57 +00:00
dan
a6c13b22b2 Change the name of sqlite3SelectTrace to sqlite3_unsupported_selecttrace.
FossilOrigin-Name: 5ecd03a27b81637ec92af654451a8fff46f1768ddb7c7a443d2a4a933b4475c1
2020-08-08 17:02:39 +00:00
drh
9216de8a23 Provide the ability to use the SELECTTRACE() debugging macro outside of the
select.c source file.  Use this to add a new SELECTTRACE() entry in
window.c for improved tracing of window-function parse-tree rewriting.

FossilOrigin-Name: 30c6d895b573d5f2a53487b3b7a0d20be7e382c7a0bc87336bd43fbd2fa89bf4
2020-06-11 00:57:09 +00:00
drh
b48c0d59fa Simplify the code by removing the unsupported and undocumented
SQLITE_HAS_CODEC compile-time option

FossilOrigin-Name: 5a877221ce90e7523059353a68650c5fdd28ed032807afc2f10afbfbf864bdfe
2020-02-07 01:12:53 +00:00
drh
cbae3f8c7d In the typeof() optimization in OP_Column, expand the size of the bogus buffer
provided for data so that it is big enough to cover the increased number of
bytes displayed during register tracing from check-in [54553bf16fabd72d].
This is the correct fix for ticket [bbd55a97e66ff50d], though the earlier one
does not hurt and is useful to retain.

FossilOrigin-Name: e1154c39ba0f8caec70d330e6d5bec745c93ec9a7eafedb3e3730fadc8b8277c
2020-01-06 20:48:45 +00:00
drh
378ca1eab3 Merge the latest enhancements from trunk.
FossilOrigin-Name: bd57e6d923d3b04f0a07aaf18bf389d2b2b7efc7c57e8cb37e6ef910662d8397
2020-01-02 21:41:59 +00:00
drh
171c50ec38 New test-only SQL functions: implies_nonnull_row(), expr_compare(), and
expr_implies_expr().  The SQLITE_TESTCTRL_INTERNAL_FUNCTIONS test-control
is modified to toggle internal function access on and off for a single
database connection.

FossilOrigin-Name: 473892a8eceacf24d57fd0c72ff2a0b8be4e0d75e0af7a30bdb24fbc3b453601
2020-01-01 15:43:30 +00:00
drh
cf014f6cbd Refactor names. Use "small" instead of "mini" to describe the smaller
of the two lookaside memory allocation sizes.

FossilOrigin-Name: 88d244983854cdc1a369c5df09ae00f1098784db768ba4e17b963d187dcb1009
2019-12-31 15:12:34 +00:00
drh
d335bc40a6 Change the default lookaside configuration to 40 slots of 1200-bytes each.
This actually works out to 30 big slots and 93 small slots using the 
mini-lookaside allocator.  We get the same (or better) lookaside coverage
but with 72KB less memory per connection.

FossilOrigin-Name: 47b71a84d1262c4bf6ad4f4a91820fd63593f08ae9efa144199d44972225e073
2019-12-13 16:04:52 +00:00
drh
5776ee5cf5 Omit the sqlite3IntTokens array constant for a code simplification.
FossilOrigin-Name: f907395ef5a2dc1d084b6a286af00de4c742cf12d4f347c21e1b757786508f57
2019-09-23 12:38:10 +00:00
drh
30842990b2 Add a TESTCTRL that disables the verification of type, name, and tbl_name
in the sqlite_master table.

FossilOrigin-Name: 48d9b48ab4ace234eb1a055cf33cb533a1c3aa82d0a6e086d96226bd9474ceca
2019-08-12 14:17:43 +00:00
drh
ade54d68ee Add the SQLITE_TESTCTRL_PRNG_SEED test control.
FossilOrigin-Name: 3ac5723164ae801e209ce525a5d94692767136f9d06be2a84883dcea677d02da
2019-08-02 20:45:04 +00:00
drh
c164cc992f Deprecate the SQLITE_ALLOW_COVERING_INDEX_SCAN compile-time option when it is
turned off.  This probably will impact no-one.  If it does, they will get an
error message instructing them to contact developers, so that we can get
feedback that somebody is actually using this feature.  Start-time disabling
of covering index scan is not affected.

FossilOrigin-Name: 23e49f9984f74f242602c6e56bfc645585c7c86bcdd585c322ab0d8e20958d86
2019-06-14 17:37:39 +00:00
drh
23a885956e Add the SQLITE_CONFIG_MEMDB_MAXSIZE configuration option for configuring
the default maximum size of an in-memory database created using
sqlite3_deserialize().  This is necessary to make the interface reasonably
testable.

FossilOrigin-Name: cb72ee0478ce98c48aae059fd5de4e36caf2b8c953e08fcb799bfd119ad46b73
2019-01-31 15:38:53 +00:00
drh
eea8eb6d04 Do not allow direct access to internal-use SQL functions such as
sqlite_rename_column() and sqlite3_rename_table() except when the
new SQLITE_TESTCTRL_INTERNAL_FUNCTIONS flag is set.

FossilOrigin-Name: 6e1330545e7b74fe5f1f20751a3425e2788441485fc07fcb7626e448c72027ce
2018-11-26 18:09:15 +00:00
dan
2e3a5a810a Add SQLITE_CONFIG_SORTERREF_SIZE configuration option.
FossilOrigin-Name: b25a7bb769b8397a00736bd922bd24b1200b2f82d36d42ecb4c3eb17efb4b84d
2018-04-16 21:12:42 +00:00
drh
35043cc32a When compiling with VDBE_PROFILE, add the sqlite3NProfileCnt global variable
which can be used to measure per-opcode values other than elapse time, if
non-zero.

FossilOrigin-Name: d44d5936428859b6d3e089d9835acb8ca1f3c0a85b59eeaa619170623e7dcc30
2018-02-12 20:27:34 +00:00
drh
b2a0f75c06 Remove the rarely-used scratch memory allocator. This makes the code smaller,
faster, and easier to maintain.  In place of the scratch allocator, add the
SQLITE_CONFIG_SMALL_MALLOC configuration option that provides a hint to SQLite
that large memory allocations should be avoided.

FossilOrigin-Name: 54b000246cfb5c7b8adb61a17357ef5a49adddde9e48e8937834d5ba0beb8a6b
2017-08-28 15:51:35 +00:00
drh
ad012d09dc Always enable URI filenames when compiling with SQLITE_HAS_CODEC. Also allow
plaintext keys using the key= query parameter.

FossilOrigin-Name: 31a51b4d168065fa59cc0e52ba798bd87ac82160c675bd531442b65133edb401
2017-05-03 15:54:53 +00:00
drh
56d65cd7b9 Provide the SQLITE_DEFAULT_LOOKASIDE compile-time option and make it's default
value be 1200,100 (raised from 512,125 in the latest release).

FossilOrigin-Name: 584da48f9e818f25134e0a62fb7e84f07019511f
2017-01-02 19:02:20 +00:00
drh
cdfffed790 Change the default lookaside configuration from 500 slots of 128 bytes each to 125 slots of 512 bytes each. This uses the same amount of memory (64,000 bytes) but seems to perform much better in test applications.
FossilOrigin-Name: 52a12e47de88744187bd1c71f2820885cde414a8
2016-12-21 21:26:58 +00:00
drh
d12602a9c5 Rename the SQLITE_OMIT_BUILTIN_TEST compile-time option to SQLITE_UNTESTABLE.
FossilOrigin-Name: f360818737e73ee4f944685a547abc8f14f47819
2016-12-07 15:49:02 +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
244b9d6ec6 Performance optimization to sqlite3Dequote() and its callers.
FossilOrigin-Name: 9efe2265b1e70172778d333c5b9d9a76095427ab
2016-04-11 19:01:08 +00:00
drh
8c71a98ce1 Add the SQLITE_CONFIG_STMTJRNL_SPILL option for sqlite3_config().
FossilOrigin-Name: b6c4202432dc96f8f1740f52d0bf872116357fcc
2016-03-07 17:37:37 +00:00
drh
80738d9c3e Improvements to the application-defined function mechanism so that it is
more compact and runs faster, especially when the application defines
thousands of new SQL functions.

FossilOrigin-Name: 3201fbcc5105d23132e6b8b7ac825e66af4f8a39
2016-02-15 00:34:16 +00:00
drh
f19aa5fa6f Changes to the way that the default BINARY collating sequence is recorded
result in a slightly smaller and slightly faster executable.  More work could
be done to make this cleaner.

FossilOrigin-Name: 2081d75767dc590b4c8457e5f8e5f18ba5f8eaa7
2015-12-30 16:51:20 +00:00
drh
4297c7c4be Add a compile-time constant for configuring the default pagecache setup.
FossilOrigin-Name: ad5fdfbac85682f0f0dee62e1086f40026a58be2
2015-07-07 21:14:42 +00:00
drh
ee70a84ea7 Enhance separate pcache1 to allocate a block of pages from heap on startup,
if possible, for a 5.2% performance improvement.

FossilOrigin-Name: aa7341c8736732a0a59f6688cc34e78be02a7bfc
2015-07-06 18:54:52 +00:00
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