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1877 Commits

Author SHA1 Message Date
drh a485ad191f In the KeyInfo object, refactor the nField and nXField elements into 
nKeyField and nAllField, which are more useful and run a little faster.

FossilOrigin-Name: aea5990eab5e85f92df966aa641db2271c81052010ad2d80982475c4275a1284
 2017-08-02 22:43:14 +00:00
drh b7673ede37 Take advantage of atomic-write capabilities in the F2FS filesystem when the 
database is stored on such a filesystem.  This is a compile-time option
activated using SQLITE_ENABLE_BATCH_ATOMIC_WRITE.

FossilOrigin-Name: 24190b221f73472dafaead6de101b4debc2c91c1ca28d70b45a38df5bb61fb39
 2017-08-01 14:16:15 +00:00
drh 8257aa8dbe Add the new sqlite3.mDbFlags field. Factor out bits of sqlite3.flags that 
do not interact with PRAGMA statements into sqlite3.mDbFlags.

FossilOrigin-Name: 3808a00f06d372cc531da039d97bd974e4a6576a30cf63bf562f83f186b313b3
 2017-07-26 19:59:13 +00:00
drh 61ffb2cda6 Fix a comment on the UnpackedRecord.r1 and UnpackedRecord.r2 fields. 
No changes to code.

FossilOrigin-Name: 622b108915c7982b29ca9920abde941fff55234b70af9ac4122e4827b35d985c
 2017-07-26 10:04:51 +00:00
drh caf8cc1b4b Compiler warning fix associated with date/time functions. 
FossilOrigin-Name: a98f07d942f0b8cc15da57b84e6340efae72ff19516fa04624242240af43a697
 2017-07-24 14:44:15 +00:00
drh 2df9478f5f Keep batch-atomic-writes turned on for journal_mode=MEMORY, but turn them 
off for synchronous=OFF.  Refuse to compile with both SQLITE_MMAP_READWRITE
and SQLITE_ENABLE_BATCH_ATOMIC_WRITE.  Fix up some comments in the commit
logic.

FossilOrigin-Name: 2e80e19e4faac30947ed56aa3601c45c758cafb27f84780df255fdbcdc9a6999
 2017-07-22 16:32:33 +00:00
dan d67a97705c Split SQLITE_ENABLE_ATOMIC_WRITE into two options - the original and 
SQLITE_ENABLE_BATCH_ATOMIC_WRITE.

FossilOrigin-Name: 7eb9bf2c5b42c39901fd571553c1f70aa5a9dac71fdc8e318b3063b928ad58f7
 2017-07-20 21:00:03 +00:00
drh 6e97f8ec84 Combine the Parse.ckBase and Parse.iSelfTab fields into just Parse.iSelfTab. 
This fixes a problem with date/time functions in check-constraints.  Add
some test cases for date/time functions in index expressions and check
constraints.

FossilOrigin-Name: 22eda0985ecd1f456c073e6ad735a8417f3ff1fb6aaad1640e1cec01e50c51d8
 2017-07-20 13:17:08 +00:00
drh 3e34eabcdf Allow indexes to be created on date/time functions as long as the 'now' 
date and the 'localtime' and 'utc' modifiers are not used.

FossilOrigin-Name: 0a5e1c04d9d07bb7fd6546a9ddac1bf42b19ea19c2b79570aea6cd4226887a27
 2017-07-19 19:48:40 +00:00
drh 971ecd7eaa The EP_Resolved flag on the Expr object is not required for correctness nor 
performance, so remove it.

FossilOrigin-Name: 54f55d3b7973e326541a81bfb2e752a2f6618e4fec9a3631b95f28e12e9c6e34
 2017-07-12 17:08:24 +00:00
drh f0f44b79c9 Compile cleanly with SQLITE_OMIT_UTF16. 
FossilOrigin-Name: 783100b801703577e35ec12fe7623e1797e49699f3b8deb0694ef061a142b844
 2017-07-12 12:19:33 +00:00
drh 8999798e60 Fix harmless compiler warnings in the core. 
FossilOrigin-Name: 55e93f256018757e5e1cb3b10ef48abf5914e7687419eae58b00998a37061261
 2017-07-11 18:11:33 +00:00
drh 07a3b11a50 Slightly more compact implementation of the byte-code generator for 
the COMMIT and ROLLBACK commands.

FossilOrigin-Name: 4da663d9863004d8cef58259a043fdcf4f466f80d3714cf58321a52485be8766
 2017-07-06 01:28:02 +00:00
drh 269ba80469 Add the count-of-view optimization when compiled using 
SQLITE_COUNTOFVIEW_OPTIMIZATION.

FossilOrigin-Name: d1ba200234f40b84327c7fc28c2584ed069da80e97578df71114d1a9ba9c559c
 2017-07-04 19:34:36 +00:00
drh 37f906087b Merge the in the latest enhancements from trunk. 
FossilOrigin-Name: 8f63c5863231eba7f853f9587b58a81102c31708402fa9962a6e91aa622fad13
 2017-06-28 18:07:29 +00:00
drh 169dd928c5 Add the SQLITE_DBCONFIG_ENABLE_QPSG option to activate the query planner 
stability guarantee.  This involves refactoring the sqlite3.flags bitvector
to carve out a free bit to use.

FossilOrigin-Name: 7076e8283ebae1b45a5d85d9538b49b6da399d38c3c6935de100f948f814f6a9
 2017-06-26 13:57:49 +00:00
dan 5aa550cf3b Consider the values bound to SQL variables when determining whether or not a 
partial index may be used.

FossilOrigin-Name: 7b59c353b805c64689b4ae9df347705acbb5f116346ad77af8ce087da7893747
 2017-06-24 18:10:29 +00:00
drh 7f2d1cd2b0 Make sure the config.h header is included by ctime.c, if that header exists. 
FossilOrigin-Name: c2ea62937ec8fabec72d3c7cd38d8e2cabbb5ce48638f8ce7ebefd6cd2716fd3
 2017-06-24 16:35:00 +00:00
dan 814aad618c Ensure that the value of the THREADSAFE symbol is always included when 
reporting compile time options, even if it was not explicitly configured.

FossilOrigin-Name: 95141c642697dc037e57f9e4992ff3460155995d3caef6259235601ee722cb93
 2017-06-17 17:29:24 +00:00
dan da1f49b83f Rework the code in ctime.c a bit to report on more compile time options. And 
to only output configuration options passed in to SQLite, not the default
values of #define symbols set automatically. Also generate the large array in
ctime.c using new script tool/mkctime.tcl, instead of entering it manually.

FossilOrigin-Name: bc1951d699e6eeacbe15776a37cd0f5cf3f09eb85d3ae01cff43293cb286fcd7
 2017-06-16 19:51:47 +00:00
drh cc97ca4c08 In SQLITE_DEBUG mode, attempt to log the page number of the database that 
contained the problem when SQLITE_CORRUPT errors are seen.

FossilOrigin-Name: e39795d7d798d5249c7bd2a0f6ff891b455f4300a3d638c39a4668323b367666
 2017-06-07 22:32:59 +00:00
drh a8b9793c86 Avoid unnecessary memory zeroing during expression list allocation. 
FossilOrigin-Name: de28e6514a42438411e2c9d833ba660108128ca86d0b90f32925fb73195f4862
 2017-05-31 02:58:30 +00:00
drh d03257c141 Size and performance optimizations to sqlite3ResolveExprNames(). 
FossilOrigin-Name: af8c0fed93c830c50641d95691bb507c31947a15529aba2a88bfaa66b3a3287a
 2017-05-31 00:49:40 +00:00
drh 979dd1be57 Optimizations to the Walker object and its methods to make the code a little 
smaller and to help it run a little faster.

FossilOrigin-Name: 6854a34ed708259f2280f7ee56cec09f7fc99810dc739dc2814ddeae286aa2c4
 2017-05-29 14:26:07 +00:00
dan ab31a8450b Automatically transfer terms from the HAVING clause to the WHERE clause of an 
aggregate query in cases where the result of evaluating the term depends only
one one or more of the GROUP BY expressions (and on no other inputs).

FossilOrigin-Name: 5375a3ce56f1d993b13b469fe33ec7679948f53940f62a15ddbaeb8aaa26a22c
 2017-04-29 20:53:09 +00:00
drh aca19e19a8 Proof of concept for the ability to use the expression columns in an index 
on expressions in place of equivalent expressions in the result set or in
the WHERE clause.  This check-in compiles but is mostly untested.

FossilOrigin-Name: a52ef2ad7c0e14b78b801f16a1f6ea8d8fa9ae5d7d810e18dd24c600b662a312
 2017-04-07 19:41:31 +00:00
drh dbd6a7dc06 Split off sqlite3DbFreeNN() from sqlite3DbFree() and use it in cases where 
we know that the argument to be freed is never NULL.

FossilOrigin-Name: ad90e8bb5e47945607c8fb47b6ade8cfc52a9b684805cc40132629be0ecc14cc
 2017-04-05 12:39:49 +00:00
drh 43606175e2 Combine the ExprList_item objects and the ExprList wrapper into a single 
memory allocation, for improved performance and reduced footprint.

FossilOrigin-Name: 2b6560ad88b92820c383bcdc1e30c06f8b081ef7c6d9b1af71d2bb76c83e35cd
 2017-04-05 11:32:13 +00:00
drh 3e7d012eb1 Make the default value for SQLITE_DEFAULT_SYNCHRONOUS a simple integer 
literal, so that it does not show up goofy in the output of
"PRAGMA compile_options;".

FossilOrigin-Name: 833ab3212addc340ca8004e8d6a06cc5e51bf256f43dc73d87fbe67518a4891b
 2017-03-25 18:03:26 +00:00
drh bce0414844 Do a single OP_Expire at the very end of "PRAGMA optimize", and omit the 
OP_Expire on ANALYZE commands invoked by the pragma.

FossilOrigin-Name: 188300a337c87b7ee0dd1f4b9a4f1bd80e70cca4
 2017-02-23 00:58:36 +00:00
drh 114ce7a4b1 Merge integrity_check and other improvements from trunk. 
FossilOrigin-Name: fe073905081b421405ca425ca03c5b8b0ff5f2c8
 2017-02-22 19:49:54 +00:00
drh 8b174f2916 Fix integrity_check so that it verifies NOT NULL constraints even for tables 
that have no indexes.  Enhance quick_check so that it verifies NOT NULL and
CHECK constraints.

FossilOrigin-Name: 5264844b069cdc20f456acee9f5b2b97c986120d
 2017-02-22 15:11:36 +00:00
drh 4a54bb5794 Add the OP_SqlExec opcode and use it to implement "PRAGMA analyze_as_needed", 
invoking ANALYZE subcommands as necessary.  This simplifies the implementation.

FossilOrigin-Name: d386015f5e7ecdd951d70db56b7bbd858be7ad90
 2017-02-18 15:58:52 +00:00
drh 182e84c116 In the analyze_as_needed pragma, avoid running unnecessary OP_LoadAnalysis 
and OP_Expire opcodes.  Make the analyze_as_needed pragma responsive to the
schema name.

FossilOrigin-Name: 882599a4a7ea92c9e7752e0745475508e58a11c3
 2017-02-18 02:19:02 +00:00
drh 5e98e838da The analyze_as_needed pragma now responds to table size growth and will 
automatically rerun the analysis after each 10x size increase.

FossilOrigin-Name: bfbdd07409688fac4ccddbab3639745f6152e23d
 2017-02-17 19:24:06 +00:00
drh 72052a73a3 Add the "PRAGMA analyze_as_needed" command. 
FossilOrigin-Name: e93db2373127d31d33ec46ef918fa9386bb664a6
 2017-02-17 16:26:34 +00:00
drh a3928dd7be Set the TF_StatsUsed flag on tables when the query planner outcome is 
affected by the sqlite_stat1 data.  Also, change the column names of the
"PRAGMA stats" command so that they are not keywords.

FossilOrigin-Name: fb2b8ae8310e4ea4b42354bbf36c3084a9d5c6d7
 2017-02-17 15:26:36 +00:00
drh 33bec3f5e8 Enhance the Index and Table objects so that they remember if their stats come 
from the sqlite_stat1 table.  Make the "PRAGMA stats" an SQLITE_DEBUG only
pragma.  Add the flags column to "PRAGMA stats".  These are all preliminary
steps toward a "PRAGMA analyze_ifneeded;" feature.

FossilOrigin-Name: 85026c8ee143bbd46565660fff8346ef81421546
 2017-02-17 13:38:15 +00:00
drh c5f4816fc5 Fix a comment on a field of the ExprList object. No changes to code. 
FossilOrigin-Name: bb8e264227175fc93f1c86a0083f8ad6c4ce2dc7
 2017-02-16 16:26:53 +00:00
drh 6f271a421d Increase Table.tabFlags from 8 to 32 bits. 
FossilOrigin-Name: 7e14044c65f64322769bcad4640a5896be0a1687
 2017-02-16 15:57:30 +00:00
drh 44266ec651 Always use the IsVirtual() macro to determine if a Table object is a virtual 
table.  Slightly smaller and faster code.

FossilOrigin-Name: 6affb1c89d87288cad87dde5a533832cdf06b8aa
 2017-02-16 14:48:08 +00:00
drh dc5ece86ae Remove the CLANG_VERSION macro, since we have learned that version numbers in 
clang are "marketing" and are inconsistent and unreliable.  Builds using clang
will still use the GCC_VERSION macro since clang works hard to be gcc
compatible.

FossilOrigin-Name: 810d29320b853b3a01aa50d8f2a0bceacf79e0aa
 2017-02-15 15:09:09 +00:00
drh f9463dfbcf Fix indexes on expressions so that they can be actually used with 
a COLLATE clause.

FossilOrigin-Name: e464b919f76520b45bb58983c6702db59d820ee4
 2017-02-11 14:59:58 +00:00
drh a39284bfa8 Cleanup the usage of the SQLITE_DISABLE_INTRINSIC compile-time option. 
Remove the SQLITE_RUNTIME_BYTEORDER compile-time option.  Use
-DSQLITE_BYTEORDER=0 instead.  Fix a bug in R-Tree that occurs when compiling
on a known little-endian machine without the use of intrinsic byteswapping
functions.

FossilOrigin-Name: 798fb9d70d2e5f95e64237b04d6692360133381a
 2017-02-09 17:12:22 +00:00
drh 1650fcb1b5 Fix the build by making the OPFLAG_ISNOOP macro available unconditionally. 
FossilOrigin-Name: 510933cb24c5bf883265af3a6075e60a4b5ffa37
 2017-02-01 15:19:29 +00:00
dan e7eeeb99f7 Fix building with SQLITE_OMIT_FOREIGN_KEY defined. 
FossilOrigin-Name: e93d2c49a44af994ff10cc9cc7eafacd5a4f73ab
 2017-01-30 11:38:19 +00:00
drh d26cc54183 In the amalgamation, allocate the parser engine object from stack rather than 
from heap, for improved performance.  This only happens in the amalgamation,
since otherwise the sqlite3RunParser() routine does not know the object size.

FossilOrigin-Name: 4fe879d4b5da6ae0688a7a99004683a234966597
 2017-01-28 20:46:37 +00:00
dan f64ece143c Avoid redundant table b-tree cursor seeks in UPDATE statements that use the 
two-pass strategy.

FossilOrigin-Name: dc555b1039c6930f6d15355c698ff917a85e8056
 2017-01-28 19:45:34 +00:00
drh d447dced96 Trim NULL values off the end of records when the SQLITE_ENABLE_TRIM_NULLS 
compile-time option is used.  Increase the size of the P5 operand to 16 bits.
Fix a problem with short records in the sessions extension.

FossilOrigin-Name: 4801bd59a01dcc11a3eb9e776e7599b36f162d2a
 2017-01-25 20:55:11 +00:00
drh 585ce1923c Experimental enhancement to automatically trim NULL values from the end of 
records, for a reduced disk footprint.  This change also involves increasing
the P5 operand from 8 to 16 bits.

FossilOrigin-Name: 118ded403b95050b74ae2b03919c43d614094a32
 2017-01-25 14:58:27 +00:00