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21,886 Commits 1,607 Branches 185 Tags
e26d428a5900bb0cbfbb4e3857ff6343e7664cfe
Commit Graph

2229 Commits

Author SHA1 Message Date
drh
9201184711 Store application-defined function names as lower-case to avoid the need 
for case conversions before calling xFindFunction on virtual tables.
Avoid using lookaside to store the destructors for application defined
functions, as lookaside should be reserved for transient allocations.

FossilOrigin-Name: 777189ce88799f93f393fd14fd716111c85bcdcb23690fd561f78ea2bd2ce5da
 2018-05-26 16:00:26 +00:00
dan
c3a20c19a8 Add support for "ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING" window 
frames.

FossilOrigin-Name: 3a203660f1e4da3b8d2d605c494f4843f6e00752f28042b49e11d7d6550dd406
 2018-05-23 20:55:37 +00:00
dan
f9eae18b56 Begin adding support for more esoteric window frames. 
FossilOrigin-Name: bc4b81d60d40583de0f929730159011c1a7696802532ebd02220de3ace94a60d
 2018-05-21 19:45:11 +00:00
dan
e2f781b9d1 Evaluate multiple window functions in a single pass if they use the same 
window definition. Add xValue callbacks for other built-in aggregate
functions.

FossilOrigin-Name: c9f0f140941660ff368e5bb5752d54feb1964b7a9eac986d4bfb8f24a1c20d86
 2018-05-17 19:24:08 +00:00
dan
86fb6e1738 Start of experimental implementation of SQL window functions. Does not yet 
work.

FossilOrigin-Name: 3781e520854808fe02ad3fe77dd11fc917448c58ff1fd79123289dd91937decd
 2018-05-16 20:58:07 +00:00
drh
0cdbe1aee0 Make the internal dynamic string interface available to extensions using 
the new sqlite3_str object and its associated methods.  This is mostly just
a renaming of internal objects and methods to use external names, through
there are a few small wrapper functions.

FossilOrigin-Name: 87f261f0cb800b06ad786f6df16f2c4dddd0d93dfdcc77b4a4eaa22920b56bf1
 2018-05-09 13:46:26 +00:00
drh
4388522561 In ORDER BY LIMIT queries, try to evaluate the ORDER BY terms first, and it 
it becomes clear that the row will not come in under the LIMIT, then skip
evaluation of the other columns.

FossilOrigin-Name: c381f0ea57002a264fd958b28e4921cb9c9e73a10fb592f6bb64e6bc9bd16d39
 2018-05-03 23:20:06 +00:00
drh
4d79983ca5 Optimizations to the new EQP framework. 
FossilOrigin-Name: 956fef361a795bd081d8e23ce4075dc8aafcee63ab7275d13b657b529d185b30
 2018-05-03 19:47:14 +00:00
drh
03c3905f94 Fix a dangling-else problem that was causing recursive CTEs to malfunction. 
Begin fixing test cases to work with the new EQP output.

FossilOrigin-Name: 82ca44b82fed6814c84440ba8bfaa019488ab956e84ac165180e2fcece6facb2
 2018-05-02 14:24:34 +00:00
drh
e2ca99c907 Begin reengineering the EXPLAIN QUERY PLAN function to provide more 
intuitive output.

FossilOrigin-Name: 70b48a7972dfbb44af3ccd8ccd830e984bec88d80a78b3566a5de86a16e7fc14
 2018-05-02 00:33:43 +00:00
drh
bbd4ae5a2f Defer loading result column values into registers on an ORDER BY LIMIT until 
we know that the LIMIT does not exclude the current row.

FossilOrigin-Name: ce4ef46058f4aaea6623a41255a2e4b69bb24f16a287391df48f6bacdb4c4989
 2018-04-30 19:32:49 +00:00
drh
0314cf3aa5 Add the "PRAGMA reset_database=ON|OFF" command. When on, it causes the 
database to appear to be empty, causing the next transaction to reset it to
an empty database.

FossilOrigin-Name: 02e1a13c1f04bb72599b98f51240c78d0d050de264fef5808fd97db3f4c16dac
 2018-04-28 01:27:09 +00:00
drh
b2c8559fad Avoid many unnecessary calls to sqlite3ReadSchema() and sqlite3Init() when 
the schema is known to be valid already.

FossilOrigin-Name: 58cf812fd81329e82b3fdd61b7ad2040c9b90d2d80f592b9231e0e1902c8d577
 2018-04-25 12:01:45 +00:00
drh
f20609d107 The ".selecttrace 0x2000" command causes just the top-level parse tree to 
be displayed, after all transformations, and showing the EQP iSelectId at
each level.

FossilOrigin-Name: ca34c2dd20ee071e6f8d60f91dbf474515a688ba57949143483da1641246cb25
 2018-04-23 17:43:35 +00:00
drh
4751b87f19 Ensure that there are no bind-parameters or incorrect schema references in 
the UPSERT portions of an INSERT within a TRIGGER.

FossilOrigin-Name: d47a6bdda0ce967a7b70bc6eb56278c8b79525622381ff4adcf04525eafc1461
 2018-04-23 13:28:55 +00:00
drh
fb32c44e41 Add the %extra_context directive to lemon, as an alternative to %extra_argument. 
Use this to improve the performance of the parser.

FossilOrigin-Name: be47a6f5262a43f477700579512fe7112a0872faedcbbe5c3383d13a08af6440
 2018-04-21 13:51:42 +00:00
drh
7fc3aba862 Enhance UPSERT so that the UPDATE uses the same set of cursors as the INSERT. 
FossilOrigin-Name: c37f39d18d41ae5ba6c4561d87cbbf71f3b6896b86cc5cff9cdf046b02dc521a
 2018-04-20 13:18:51 +00:00
dan
dedff6be8a Add the "sorter-reference" optimization, allowing SQLite to be configured so 
that some required values may be loaded from the database after external
sorting occurs for SELECT statements with ORDER BY clauses that are not
satisfied by database indexes.

FossilOrigin-Name: ef74090a40ceaef2fd93a7613ec99a191ce986811c852e96f4a19719f18af4f0
 2018-04-18 19:56:14 +00:00
drh
5412eb5106 Fix the build for SQLITE_OMIT_UPSERT 
FossilOrigin-Name: 32956519173ee49ec9dd9aa7952278eb4effe567493c6cb304e16f887df6bafa
 2018-04-18 15:33:21 +00:00
dan
2cc00423a0 Add some more simple test cases for UPSERT. And a minor fix. 
FossilOrigin-Name: 27cd3b2fb2ad0cf2b36741bd1057cb7973954d40456e9db158261a38b049d2b5
 2018-04-17 18:16:10 +00:00
dan
2e3a5a810a Add SQLITE_CONFIG_SORTERREF_SIZE configuration option. 
FossilOrigin-Name: b25a7bb769b8397a00736bd922bd24b1200b2f82d36d42ecb4c3eb17efb4b84d
 2018-04-16 21:12:42 +00:00
drh
eac9fabbc9 Add support for the "excluded.*" names in the UPDATE clause of an upsert. 
FossilOrigin-Name: 0203f34faae07fbea0bff2d23b81fb37df8854cded4cdadac5a034132a096b6d
 2018-04-16 13:00:50 +00:00
drh
1d621f7f0d Merge changes from trunk. 
FossilOrigin-Name: 54d96772e78b7f57d5b590aebe34a139ade73629aebe16677372650b33513b1d
 2018-04-16 10:47:38 +00:00
drh
25c3b8caf4 Reduce the size of the NameContext object by grouping seldom-used fields 
into a union.

FossilOrigin-Name: dba3095feeeb55b5c0ebe33bdd4be8ba1f24478406685d3a042a69d9c380e742
 2018-04-16 10:34:13 +00:00
dan
24e25d32ce Experimental change to "SELECT * FROM ... ORDER BY" processing to load some 
column values from the db after sorting.

FossilOrigin-Name: 9719cb46bbf501ce80f185159d594f593dd0b2639b9ef5a71a6c7b70046cb08d
 2018-04-14 18:46:20 +00:00
drh
0b30a11645 First cut at logic to perform DO UPDATE for rowid tables. 
FossilOrigin-Name: a9080bc8b8c5f3b399eb1819bb5009581f178d85bb2b2cca7bc16a7b81b06863
 2018-04-13 21:55:22 +00:00
drh
9eddacade9 Add infrastructure for doing an UPDATE as part of an UPSERT. Still no actual 
UPDATE code, however.

FossilOrigin-Name: 6d3017f92bce3e50a91fab2f605e2af8b913b1b374adbfd977299eb042683de8
 2018-04-13 18:59:17 +00:00
drh
c8a0c90b62 Get the ON CONFLICT DO NOTHING form of upsert working by mapping it 
into INSERT OR IGNORE.

FossilOrigin-Name: d07f05e98bb9ce0f9b46db159d9df161b7499d6face6a5299ecd2d00a94fb8d0
 2018-04-13 15:14:33 +00:00
drh
e9c2e772f1 Back off of the extended upsert syntax that allows multiple ON CONFLICT 
clauses.  The syntax now is exactly as in PostgreSQL and MySQL.  Add support
for WHERE clauses on the conflict-target phrase, for partial indexes.

FossilOrigin-Name: 2c1b1987d8de1efa8ed7e1f199710e32ff20edf8ceec570514fc63bb1ef264e0
 2018-04-13 13:06:45 +00:00
drh
788d55aa77 Begin adding upsert logic. This is an incremental check-in. 
FossilOrigin-Name: 809696434097e62e8ef486c7478b5eb62c0cf1342522a5584939fade82821410
 2018-04-13 01:15:09 +00:00
drh
dab0eb58d7 Extend the upsert syntax to allow a WHERE clause on the UPDATE. 
FossilOrigin-Name: e4396c540a22fbc087a01050a32bfad514259d700c2381d7ac912580d7dca00f
 2018-04-12 17:28:06 +00:00
drh
6cd7d489db Update the upsert parsing so that it accepts conflict-target labels using 
the PostgreSQL syntax, and also accepts the MySQL "ON DUPLICATE KEY"
syntax.

FossilOrigin-Name: c48f64d8ae2625a19267b02e4a173a07766934235ad3052cd9d38f5ecbcbfbc3
 2018-04-12 15:43:05 +00:00
drh
46d2e5c35a Add the Upsert object for holding upsert clause information. 
FossilOrigin-Name: d83eaed539b274c2abd650d07522f491865d4917acbb64d05d01b3ba5c3cd446
 2018-04-12 13:15:43 +00:00
drh
2c2e844a36 More complete parsing of UPSERT, including UPSERT within a trigger. 
The sqlite3Insert() logic to actually perform the UPSERT is not yet
implemented, however.

FossilOrigin-Name: 5cc2a5a315a2f26b392811de45b3dc352873a173c2c6c65f37ce2e5f88a71cd2
 2018-04-07 15:04:05 +00:00
drh
f0119b2e1b Add infrastructure to support for using F_SETLKW with a timeout on system 
that support that functionality.  Requires SQLITE_ENABLE_SETLK_TIMEOUT.

FossilOrigin-Name: 2e54a7433ece4eb27e71bda6f2d121d5aa46ddd5a481357d8543d1432aaad689
 2018-03-26 17:40:53 +00:00
drh
80262896d6 Refactor some internal object element names used by the busy handler, to 
simplify analysis.

FossilOrigin-Name: 6c40c5574f4ae9795a142d01a8f84afd1b72678ea5f6bfca14a8646c4e862605
 2018-03-26 16:37:53 +00:00
drh
2589787c5a If terms of the WHERE clause require that the right table in a LEFT JOIN 
not be a null row, then simplify the LEFT JOIN into an ordinary JOIN.

FossilOrigin-Name: 5b7abecc7ab8ccbbb8cb5e0f672e67625c2555ad03442efbf34cb395f5bb71a8
 2018-03-20 21:16:15 +00:00
drh
cd0abc24d1 Improvements to the HAVING-to-WHERE optimization. The code uses less space 
and less CPU, and there is now ".selecttrace" output.

FossilOrigin-Name: 5ad668d4339397fe66fe085e0527e37a1930917da88d462a8d89a465faa15e28
 2018-03-20 18:08:33 +00:00
drh
2d277bb5cb Add the ability to disable the push-down optimization using the 0x1000 bit of 
SQLITE_TESTCTRL_OPTIMIZATIONS.

FossilOrigin-Name: eddc35f3057e59fdc25a6911abfaa53a10cc43d8030925b65737b2f51f907421
 2018-03-20 11:24:30 +00:00
drh
cfd74700da Minor improvements to ".selecttrace". No changes to non-debug code. 
FossilOrigin-Name: 03e541f606ead1a13e1084db88e168278c82a2ba72b18c89baafeab3141367b4
 2018-03-19 22:28:34 +00:00
drh
9c6396ecc7 Improved documentation for sqlite3_serialize() and sqlite3_deserialize(). 
Change the name of the compile-time option to enable these interfaces
from SQLITE_ENABLE_MEMDB to SQLITE_ENABLE_DESERIALIZE.

FossilOrigin-Name: f07e97aed435b02e1473053c0257ec5c89bf0b3e46076b7a9382de432bbc2497
 2018-03-06 21:43:19 +00:00
drh
2825e4ebb1 Merge the latest enhancements from trunk. 
FossilOrigin-Name: c8083de14b54fba1071385f8530d03d5684efd4963fde0f83ddc53ae3118a75b
 2018-03-01 13:44:40 +00:00
drh
96acafbea7 Clean up comments and variable names prior to merge. 
FossilOrigin-Name: 6445519e91c4f98b4a9a45d5091d733c31497ebf0eb23a76edce3091f626035d
 2018-02-27 14:49:25 +00:00
drh
43c4ac8bfe Code simplifications. New test cases. 
FossilOrigin-Name: 57508518ef9d003d259ba98dcc32e5104aca26731a7161808741fe10bc0830d0
 2018-02-26 21:26:27 +00:00
drh
171d16bb21 Get the "DEFAULT true" and "DEFAULT false" phrases working correctly in 
CREATE TABLE.

FossilOrigin-Name: 8002f87d96b3f885cd208e7d204907a33ba60c4057ce2338b71e2de41215b0e5
 2018-02-26 20:15:54 +00:00
drh
8abed7b907 Refactor for correct NULL handling in the IS TRUE, IS FALSE, IS NOT TRUE, 
and IS NOT FALSE operators.

FossilOrigin-Name: cf2abd59be9971a55bd3d6c5df374c6aaa23bf81819482b42f01ee2484dcd739
 2018-02-26 18:49:05 +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
dan
26e731cc88 Ensure the "unique-not-null" flag is set for automatic indexes on columns 
declared with "col UNIQUE NOT NULL" (where the NOT NULL comes after the
UNIQUE).

FossilOrigin-Name: 8767f7b880f2e4112f75f0b6ef7be3f50ab1ae20e103e7d03d8bfe77e6c79438
 2018-01-29 16:22:39 +00:00
drh
31a13548f8 Merge changes from trunk. 
FossilOrigin-Name: 6ef3de810d54563c227045b16197b8011ce285ea867261946f93b2de55344f29
 2018-01-24 15:02:53 +00:00
drh
41fb367a2c Improved comments. Slightly tighter implementation, but no big changes. 
FossilOrigin-Name: a1b3f28569f2a8d82b2931527fdfe191b421f3e1ea18ee30e04211e1ad645993
 2018-01-12 23:18:38 +00:00