database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2026-10-26 21:59:27 +03:00
Code Activity
21,086 Commits 1,786 Branches 392 Tags
uuid-funcs
Commit Graph

503 Commits

Author SHA1 Message Date
drh
31f69626df Performance optimization to the lookaside-memory disabling mechanism. 
FossilOrigin-Name: 17ce1c49cb0ed6fdd8c7c33431bc2afa217f1092c99b8dd608890a8e7aec7fb1
 2019-10-05 14:39:36 +00:00
drh
5776ee5cf5 Omit the sqlite3IntTokens array constant for a code simplification. 
FossilOrigin-Name: f907395ef5a2dc1d084b6a286af00de4c742cf12d4f347c21e1b757786508f57
 2019-09-23 12:38:10 +00:00
dan
8085d53d3c Add support for "ORDER BY ... NULLS FIRST" and "ORDER BY ... NULLS LAST". Use this to fix ticket [f8a7060e]. 
FossilOrigin-Name: 94085fb3e756bc984237b74b6e29c68462ad860870c64dcb5124feaeec387660
 2019-08-27 19:59:21 +00:00
drh
790b37a240 Omit the "x IN (y)" to "x==y" optimization of check-in [e68b427afbc82e20] 
(and ticket [e39d032577df6942]) as it causes difficult affinity problems
as demonstrated by ticket [dbaf8a6820be1ece] and the original assertion fault
is no longer a factor due to countless other changes of the previous 5 years.

FossilOrigin-Name: 7f5168a76a400fc2e1e40c6950470b1bfb38a0be54fc5518c17c29fdae7d8f1f
 2019-08-27 17:01:07 +00:00
dan
ee6c5e5ae7 Move some things in parse.y so that TK_COLUMN and TK_AGG_COLUMN are assigned the same values as they are on trunk for a very small speedup. 
FossilOrigin-Name: d26fdfa3bc5f8d9c4a6000462080b0dd508e5cae9a83e0d126be48195224da8c
 2019-08-23 20:33:01 +00:00
dan
6e11892db8 Experimental implementation of NULLS FIRST/LAST. This branch still has problems - the most significant of which is that ORDER BY clauses with a non-default NULLS FIRST/LAST qualifier can never use an index. 
FossilOrigin-Name: 07babb0f897fc8c9cb5b30481899c32fdd743f3f3ca508d8d957826252107dd5
 2019-08-12 16:36:38 +00:00
drh
1194904b81 Refactor field Expr.affinity into Expr.affExpr to avoid confusion with other 
fields and variables named "affinity" and display affExpr it in
sqlite3TreeViewExpr() output.

FossilOrigin-Name: a29f2a7d07beff64e489e8f824babc6228c4a499fadc0ee701caa60a63baadcd
 2019-08-05 18:01:42 +00:00
drh
55f66b341a Add new assert() statements in an attempt to help static analyzers avoid 
false-positives.

FossilOrigin-Name: 9e66458592d40fbd96ea5f21339573110ca1cfe328238a020c9420a87d35dd72
 2019-07-16 19:44:32 +00:00
dan
0088574271 Fix a memory leak that could follow an OOM in the new FILTER code. 
FossilOrigin-Name: 85fd70fead834aed16cffbea892b2255b4e10dd677f4dbbb96062d5ff42efdeb
 2019-07-13 18:27:54 +00:00
dan
4f9adee289 Rework the FILTER clause implementation to share more code with window functions. 
FossilOrigin-Name: 5dac8c38dfc3f41c5c8fb49ca35de7fd1b21f269d72e8ba6ba59ed0a4030a54d
 2019-07-13 16:22:50 +00:00
dan
6488271f05 Change the parser on this branch to more closely match trunk. This saves a few more cycles. 
FossilOrigin-Name: be01b801fbc258f0ab9542130cec12a5ea5e2d0bf087684a9eda909ad459c211
 2019-07-11 18:43:33 +00:00
dan
6ba7ab0d25 Experimental implementation of FILTER clause for aggregate functions. 
FossilOrigin-Name: 1f1ae2d6ac8dcbb62e5aa3dc17bc67d559cb565fc0d0a8c00a596075d35f8130
 2019-07-02 11:56:47 +00:00
drh
8e34e4061b Add the new sqlite3ExprUnmapAndDelete() function and use it in place of 
separate calls to sqlite3RenameExprUnmap() and sqlite3ExprDelete().

FossilOrigin-Name: 36ea13e0a851a749c9ef292377ecd82dbd4797d38df907b362487fa234c98ca5
 2019-06-11 10:43:56 +00:00
drh
e53be9f236 Remove a comment made obsolete by check-in [71643deb6bbad4b4]. No changes 
to code.

FossilOrigin-Name: 211c8002d5ea4b224125d4ed395fe15767d1dc32a77b40b89fdfc80bdd1c5a48
 2019-06-11 01:30:39 +00:00
dan
e4a9e4d0e5 Have ALTER TABLE commands ignore the lhs of "expr IN ()" and "expr NOT IN ()" expressions, just as other queries do. Fix for [533010b8ca]. 
FossilOrigin-Name: 71643deb6bbad4b4a511bfd43b32245b50a555b508b90f33adf0656ae53292c6
 2019-06-10 19:17:37 +00:00
dan
e20a894a34 Handle renaming a column or table when the schema contains a (meaningless) index on the constant expression ('text' IN ()) or ('text' NOT IN()). 
FossilOrigin-Name: 567b13093956185b5d5e971b81ba4788fd9d26c03688f643b380f0f1c1a94da0
 2019-06-10 15:34:16 +00:00
dan
4db4b5b4fe Avoid including the comment in the output of "PRAGMA table_info" in situations where there is a comment following a DEFAULT value within a CREATE TABLE statement. 
FossilOrigin-Name: d91095ba7130e974f0c95334760c679a31479b07a3d458e15994a24eee474752
 2019-05-18 19:49:08 +00:00
drh
d5c851c1cb Streamline the processing of the AND operator. Slightly smaller and faster. 
FossilOrigin-Name: 7713996aa99ce6dd35b5a2db74dd26658fb8d9817169b2a7531cdef6edb41403
 2019-04-19 13:38:34 +00:00
drh
7bbdc3c597 Remove some stale references to the addopcodes.tcl script from documentation. 
FossilOrigin-Name: c0381b0bc90aa3c2415c4b3ac338cfe6d308bb5d4247bc6f2b6e919f549c254c
 2019-04-05 21:17:11 +00:00
drh
f1722baaf8 Eliminate the tool/addopcodes.tcl script. The purpose of that script was to 
keep the number of parser codes below 256 in order to save parser table space.
But we have long since blown through that ceiling so the addopcodes.tcl script
was just needless complexity. There is no longer any reason to keep it around.

FossilOrigin-Name: d272819298083ebbde57962a2938925b1aaa1caf03e48bb3ea26ad91e0461d84
 2019-04-05 20:56:46 +00:00
drh
0f134f0267 Small optimizations to the grammar for window functions save about 120 bytes 
of space in the parser tables.

FossilOrigin-Name: bce01d9584e52b23d7c07c2e832d5fa5d6e6235711c856b903a296725f61ed6e
 2019-04-02 18:12:20 +00:00
drh
3de52e8fa0 Including the phrase EXCLUDE NO OTHERS in the frame-spec of a window function 
(which is the default setting for EXCLUDE) silently disables the xInverse
optimization.  This is a feature, but we will keep it undocumented for now
in case we later decide it is a bad idea.

FossilOrigin-Name: 10aedce3dd2c0c9f0ee9e0aefd0b4d2c2eb17c4ca72003c4db9768ea5cdafcf4
 2019-04-02 17:45:01 +00:00
dan
ced89124d8 Ensure that all the new window-function keywords can still be used as SQL identifiers. 
FossilOrigin-Name: a6d61dfd4780eccfce5f7a5ead6c04e3b78bc4a461551fd7dd602550e0d51084
 2019-03-19 06:40:29 +00:00
dan
1e7cb19be3 Fix problems with RANGE windows and string, blob and NULL values. 
FossilOrigin-Name: cebe09e11cc91d9776f259dd9b87e9c760a460f53ba6fa36481dfe58f77ad417
 2019-03-16 20:29:54 +00:00
dan
d35300f9b6 Parse EXCLUDE clauses in window frames. They do not yet work. 
FossilOrigin-Name: d03c7533a1e993f1b12392a5193b2127484307b27072236a1255e7a30849a381
 2019-03-14 20:53:21 +00:00
dan
6c75b39614 Finish consolidation of window frame code. Add untested support for GROUPS frames. 
FossilOrigin-Name: 954bf369935083c188c3b14e77ed89fc5ec4323cc5b0c67e4a2e48fcc278df45
 2019-03-08 20:02:52 +00:00
dan
e7c9ca41b2 Add support for chaining of WINDOW definitions. 
FossilOrigin-Name: c155125fd5dddb438c09d40f5137c47d88defb7a6ede4261f09d7bdaad250d37
 2019-02-16 17:27:51 +00:00
drh
6a0db87a2f If the amalgamation file "sqlite3.c" is generated using the 
SQLITE_ENABLE_UPDATE_DELETE_LIMIT option, but then subsequently (mis-)compiled
without that option, and then a particular syntax error could cause
a memory leak, but for this fix.

FossilOrigin-Name: 1bb17c863a269ab8b28df94b9fdaac3ee70777ccd0a30300131bf67df6722052
 2019-01-31 02:42:47 +00:00
dan
f467744d5f Fix a problem with running ALTER TABLE on a schema that contains expressions of the type "col IN ()" (empty set on RHS of IN operator). 
FossilOrigin-Name: 2d9cd06715092c312c8c0ec392696a0e90ed090b074e2082e0b830f1399aa941
 2019-01-24 16:27:10 +00:00
drh
29c992cb04 Revamp the SrcList allocator routines to be methods of Parse instead of 
being methods of the "sqlite3" object, so that they can leave better error
messages when the SrcList object grows too large.

FossilOrigin-Name: df08d472b090b212fb77ce2aae0e1ffe79ae5db4b1accf55e6fdb18e8b0a7098
 2019-01-17 15:40:41 +00:00
drh
51d35b0fa9 The keywords TRUE and FALSE should only act as boolean literal values if 
unquoted.

FossilOrigin-Name: 5547f39de993c708f72301ef25df190a2f007e0c4253799bdd9e86bb1ae41777
 2019-01-11 13:32:23 +00:00
drh
2f6239ed4e Allow the INTO clause of VACUUM to be a text-valued expression. 
FossilOrigin-Name: af172b53b46759f491f522356e14c5e2374d3f25ec70fbc1e100cadded8f9b22
 2018-12-08 00:43:08 +00:00
drh
b0b7db91b8 Prototype implementation for the VACUUM INTO command. 
FossilOrigin-Name: 036e3320a4af36c1311b25b2e504b0079c8b33df8ad7b7e5fddad07150e6f87d
 2018-12-07 17:28:28 +00:00
drh
4a5cff73a7 Fix a parser bug in the use of parentheses around table-valued functions. 
FossilOrigin-Name: 58a51123d1a6381cc67d3c64ba3468ec5a92c299ad6fd86de0b843d0ffafb846
 2018-12-03 01:47:41 +00:00
drh
eda079cd2c Combine the Expr.pTab and Expr.pWin fields into a union named "y". Add a new 
EP_WinFunc property that is only true if Expr.y.pWin is a valid pointer.
This reduces the size of the Expr object by 8 bytes, reduces the overall
amount of code, and shaves over 1 million cycles off of the speed test.

FossilOrigin-Name: ad130bb86e74e6ce165fdbdce3a19699510f0e62071c1c7923b5a4538d888c7c
 2018-09-20 19:02:15 +00:00
dan
c50f75df96 Fix a problem with ALTER TABLE when there are views or triggers in the schema 
that contain "<expr> IS NULL" expressions.

FossilOrigin-Name: 91aab32e71fcb924e24c02d5f0901f7a474760fc993a7e7436e667512cf5d3c3
 2018-09-06 18:56:36 +00:00
dan
c9461ecc28 Extend RENAME TABLE to edit triggers and views. Still buggy. 
FossilOrigin-Name: 01308bae3acf33f78b5bb90892085eab340df093aafc17e6ccf6a7d6cf324897
 2018-08-29 21:00:16 +00:00
drh
d3130dab92 The Expr.iColumn field must also be initialized in tokenExpr(). 
FossilOrigin-Name: 772985f18b2ab8fa04a0c29593fc6d9b74c1361260cb59e566606dd56f326535
 2018-08-23 18:50:19 +00:00
drh
4fe759b2cc Make sure the Expr.iTable field is initialized by tokenExpr(). 
FossilOrigin-Name: 02a05a3b3c6440432fc15daa14678a6eba40759e17e43ae8d63d19a0842de56a
 2018-08-23 18:22:00 +00:00
dan
07e9523364 Rename internal function sqlite3RenameToken() to sqlite3RenameTokenMap() and 
sqlite3MoveRenameToken() to sqlite3RenameTokenRemap().

FossilOrigin-Name: b9ae9a0a188b82d7066f6ef7d21592889df0a61559e9a0e01819e9d5a92c3f36
 2018-08-21 16:32:53 +00:00
dan
d145e5f46f Minor changes to function tokenExpr() in order to claw back cycles lost to the 
rename-column change.

FossilOrigin-Name: 479976955ecb27c3e77a280187eaf23722178549e072b34f3183354a27a4e5c3
 2018-08-21 08:29:48 +00:00
dan
5be60c55e8 (no comment) 
FossilOrigin-Name: e272dc2b1c0edab59a40f32c77c81a3e636937280524161eff5669cb0046ad84
 2018-08-15 20:28:39 +00:00
dan
5496d6a25a Edit the WHEN and UPDATE OF clauses of trigger programs as part of ALTER TABLE 
RENAME COLUMN.

FossilOrigin-Name: 5fdb6b0aafba727139e1937ef5950e4434a77f95a10fc46f8010ca2de3922326
 2018-08-13 17:14:26 +00:00
drh
5fc22cdfde Fix issues with ALTER TABLE RENAME COLUMN associated with OOM errors. 
FossilOrigin-Name: 0b28dd5c2e4908d5e49eaedd359492e46de8af3bf84120f4683b3ea906882fbf
 2018-08-13 13:43:11 +00:00
dan
e9a2fa3182 Fix a problem with renaming columns on tables with REFERENCES clauses that 
specify a large number of columns.

FossilOrigin-Name: d48f7bbdf4a1686c25e634a8dec6ead88bf2866fee94ed8e5058f830363424a8
 2018-08-10 14:23:41 +00:00
dan
cf8f289542 Experimental implementation of ALTER TABLE ... RENAME COLUMN. Still buggy. 
FossilOrigin-Name: fa0fc01eb48a864f0a3d43f9b805d5ed2e530846ee0c34fcbc2eabd9e5696277
 2018-08-09 20:47:01 +00:00
drh
954733b386 Improvements to the parser to increase coverage. Fix the parser so that 
at least one expresssion is required after PARTITION BY and within the
list of expressions on VALUES().

FossilOrigin-Name: 02204f8b246c868846f39bd44f2e3bc0fab0275aa09ef3a0e5a8e3d58f484ca8
 2018-07-27 23:33:16 +00:00
drh
550a33091b Minor grammar changes that help the parser run faster by reducing the 
number of NUL rule reductions.

FossilOrigin-Name: cfd1b00592bd550e444dfc7b6a6a93c77c07b835729c6cc69a4b6361038964ba
 2018-07-27 22:14:50 +00:00
drh
fef37760da Identify Select objects within a single statement using small sequential 
integers rather than "0x%p".  This is more readable and yields the same result
on successive runs.

FossilOrigin-Name: a7cdc5bc85e0edfcc38f920c2ce91599bcbfdb49522d88b08c64596546d13881
 2018-07-10 19:48:35 +00:00
drh
c7bf57168a Fixes for various harmless compiler warnings. 
FossilOrigin-Name: 5023b1b85b883a716a5da673740b6effe214ee0490f4ca45f161bb8b04784366
 2018-07-09 22:49:01 +00:00