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628 Commits 1,607 Branches 185 Tags
f570f011ebb27fece3bc44eec067dbab8b0a337a
Commit Graph

66 Commits

Author SHA1 Message Date
drh
f570f011eb Refinements to NULL processing: NULLs are indistinct for DISTINCT and UNION. 
Multiplying a NULL by zero yields zero. In a CASE expression, a NULL comparison
is considered false, not NULL.  With these changes, NULLs in SQLite now work
the same as in PostgreSQL and in Oracle. (CVS 600)

FossilOrigin-Name: da61aa1d238539dff9c43fd9f464d311e28d669f
 2002-05-31 15:51:25 +00:00
drh
461c281a2e Bug fix: bad code was generated for when the first operand of a CASE 
was NULL. (CVS 598)

FossilOrigin-Name: 4debc8db929fdc201759ba211acdeadc4e30e8af
 2002-05-30 02:35:11 +00:00
drh
f5905aa7be NULL values are distinct. A comparison involving a NULL is always false. 
Operations on a NULL value yield a NULL result.  This change makes SQLite
operate more like the SQL spec, but it may break existing applications that
assumed the old behavior.  All the old tests pass but we still need to add
new tests to better verify the new behavior.  Fix for ticket #44. (CVS 589)

FossilOrigin-Name: 9051173742f1b0e15a809d12a0c9c98fd2c4614d
 2002-05-26 20:54:33 +00:00
drh
ad3cab52fe Split the IdList structure into IdList and SrcList. SrcList is used to 
represent a FROM clause and IdList is used for everything else.  This change
allows SrcList to grow to support outer joins without burdening the other
uses of IdList. (CVS 584)

FossilOrigin-Name: a167b71d8c27e870bc3079c6132e483bffc83298
 2002-05-24 02:04:32 +00:00
drh
e4697f5e90 Fix some places where a malloc() failure would lead to a segfault. (CVS 580) 
FossilOrigin-Name: 01ad352c3c82a86d9c94010cbc85d098b8fbc08a
 2002-05-23 02:09:03 +00:00
drh
2398937b7f Double-quoted strings resolve to column names if possible. Single-quoted 
strings continue to be interpreted as string literals. (CVS 576)

FossilOrigin-Name: 55e7d65496624c8e48673d8747f3123786bfedbc
 2002-05-21 13:43:04 +00:00
danielk1977
f29ce55958 Style fixes to triggers code in various *.c files (partial fix to ticket #39) (CVS 571) 
FossilOrigin-Name: 8a4195c7466962291a296e8f53034ea8cb25005f
 2002-05-19 23:43:12 +00:00
danielk1977
c3f9bad209 Added FOR EACH ROW triggers functionality (CVS 562) 
FossilOrigin-Name: 794bf67b6b36fce8854d5daff12f21dbb943240c
 2002-05-15 08:30:12 +00:00
drh
0ac6589202 Fix for ticket #1: Implement the GLOB and LIKE operators as functions that 
can be overridden.  This way, a developer can change the LIKE operator to
be case sensitive, for example. (CVS 537)

FossilOrigin-Name: 51572bf71774d7631c7083be90b806e621bc9bee
 2002-04-20 14:24:41 +00:00
drh
17a7f8ddab Added support for CASE expressions - patches from Dan Kennedy. (CVS 437) 
FossilOrigin-Name: 836b59d057c3fb4087b138c9bfbc03392ddfb89d
 2002-03-24 13:13:27 +00:00
drh
094b2bbfc7 Fix bug in anonymous subquery in a join. Parser requires a semicolon or 
end-of-input before executing. (CVS 429)

FossilOrigin-Name: c0e3f1c592f583a0659901743a368aff1927f1cb
 2002-03-13 18:54:07 +00:00
drh
e684090012 Optimizations to the processing of integer comparisons. (CVS 420) 
FossilOrigin-Name: b7a7dae919be0e4c35b1fe8cb24fa7359a4b1200
 2002-03-06 03:08:25 +00:00
drh
417be79cd1 VIEWs are bound to tables when they are used, not when they are first 
entered.  This works around the problem of what to do if a table is deleted
that a view refers to. (CVS 415)

FossilOrigin-Name: 6121e5ab9328c90c64d40ade3de73ad11d4aaf4e
 2002-03-03 18:59:40 +00:00
drh
75148a27b4 Fix a memory leak in expression processing. (CVS 414) 
FossilOrigin-Name: dfe431c9b70bc3a1bf5148826edce0846737e66b
 2002-03-03 03:42:31 +00:00
drh
832508b7ea Subquery flattening is implemented and passes all regression tests. 
We still need to add addition tests to the suite to further exercise
the flattener, however. (CVS 408)

FossilOrigin-Name: d5d3e79cc58da5bd315cc1fea1f7cbf46274da16
 2002-03-02 17:04:07 +00:00
drh
89425d5e02 The new function code passes regression tests. (CVS 403) 
FossilOrigin-Name: b00cf110b1cc671b7200a5ce8b9e704f660763c9
 2002-02-28 03:04:48 +00:00
drh
f55f25f02f Fix the coredump. There are still problems in the test suite though. (CVS 402) 
FossilOrigin-Name: 6af10cc53acc1ffa60de3f0d5880a6b72815404c
 2002-02-28 01:46:11 +00:00
drh
0bce8354b4 Completely remove the old SQL function system and replace it with the 
new user functions.  The code currently compiles but it coredumps on the
test suite.  Do not use in its present state. (CVS 400)

FossilOrigin-Name: 50797fee5066ec9ea23b720e5ab7e8fc8ccc1988
 2002-02-28 00:41:10 +00:00
drh
1350b030c1 Revise the API for user-defined functions. (CVS 398) 
FossilOrigin-Name: 633951f0fa11c91f93aa2862df84691750c01e73
 2002-02-27 19:00:20 +00:00
drh
4e0f995347 The user-defined function routines failed to detect a malloc() failure. (CVS 397) 
FossilOrigin-Name: 085b0d671a1dac964693d69d866224de155dfe4c
 2002-02-27 01:53:13 +00:00
drh
ff78bd2f07 Bug fixes in the VIEW implementation. (CVS 396) 
FossilOrigin-Name: 668ef6380eba256ef82477b63aef850249a619a0
 2002-02-27 01:47:11 +00:00
drh
a2ed56016f Comment changes only. (CVS 395) 
FossilOrigin-Name: 63b87f2ea6cd78f039bf40026d21b18de20b3ba7
 2002-02-26 23:55:31 +00:00
drh
e5095355d6 Code for user-defined aggregates added. Legacy tests all pass but there 
has been no testing of the new user-defined aggregate code. (CVS 392)

FossilOrigin-Name: 1e037eb303d8508cb2ea3418e71b03315d895fbd
 2002-02-24 03:25:14 +00:00
drh
8e0a2f903a Added support for user-defined normal functions. Support for user-defined 
aggregates is pending. (CVS 390)

FossilOrigin-Name: c490a1ff951c5d4a2de8e4f8d349189bfaef7f74
 2002-02-23 23:45:45 +00:00
drh
a76b5dfca6 Code to implement CREATE VIEW is in place. A quick smoke test shows that 
it works, but there are probably still many bugs. (CVS 387)

FossilOrigin-Name: 39fed2df11382b9855d518502a6c2ca200fa66b8
 2002-02-23 02:32:10 +00:00
drh
2f4392ff5b All identifiers to be quoted in square brackets, for compatibility with 
MS-Access. (CVS 370)

FossilOrigin-Name: e17a858c9eeb70c62f54c88e6be5897e58d67301
 2002-02-14 21:42:51 +00:00
drh
ef6764a1d9 Better testing of the ON CONFLICT logic. (CVS 358) 
FossilOrigin-Name: 9bbddb8e013b47547164f71f2d7abd995f8d7385
 2002-01-30 04:32:00 +00:00
drh
9208643d2a Constant ORDER BY or GROUP BY expressions are an error. (CVS 352) 
FossilOrigin-Name: 035984a5b00b4a1a6505405f40b15c7695283c0a
 2002-01-22 14:11:29 +00:00
drh
a2e00042a1 The right-hand side of an AS in a SELECT can be used within expressions of 
the WHERE, ORDER BY, GROUP BY, and/or HAVING clauses. (CVS 350)

FossilOrigin-Name: 3684beab0f8a71ebdf453871bbde7a9ab1f65385
 2002-01-22 03:13:42 +00:00
drh
aacc543e23 Comment updates most. Also some small changes to the VDBE. (CVS 339) 
FossilOrigin-Name: 9b0be4fcc1cbca69f5fee906f86dfb36a323fe84
 2002-01-06 17:07:40 +00:00
drh
c6b52df32d An attempt to delete a single row using a WHERE clause that specifies 
the rowid would result in an error if the rowid did not exist.  This
problem has been resolved. (CVS 338)

FossilOrigin-Name: 011be9a9d2632d261489005d97c69b0a0bc5a108
 2002-01-04 03:09:29 +00:00
drh
4a32431ce7 Added support for the INTEGER PRIMARY KEY column type. (CVS 333) 
FossilOrigin-Name: 236a54d289e858a1e0505a20d907a2a40c01b521
 2001-12-21 14:30:42 +00:00
drh
7a7c73905d Fix comparison functions so that they are consistent with the order 
of elements in indices.  Fix the handling of large integers. (CVS 317)

FossilOrigin-Name: fc2aae04578c305304a45ec6b76d3ab216cc7526
 2001-11-24 00:31:46 +00:00
drh
487ab3ca18 The new code for taking advantage of inequalities in WHERE clauses 
is in place.  It appears to work. (CVS 305)

FossilOrigin-Name: 262bcd17df19f45def6144b5a7e0602ca5b03deb
 2001-11-08 00:45:21 +00:00
drh
6d4abfbee5 More changes for 2.0.7. (CVS 293) 
FossilOrigin-Name: f8328a5f11801c5124f9a8dace22df3c1cfb2191
 2001-10-22 02:58:08 +00:00
drh
bf4133cba1 2.0.3 (CVS 287) 
FossilOrigin-Name: 75e90cf09b64ee1fcb39a711fc9ac6d3d2b849a5
 2001-10-13 02:59:08 +00:00
drh
99fcd718e1 Remove the P3 and label arguments from the internal sqliteVdbeAddOp() 
function.  This makes the code easier to read and perhaps smaller as
well. (CVS 286)

FossilOrigin-Name: 288ef1247b94c6c933451d120cdc78e471efc14e
 2001-10-13 01:06:47 +00:00
drh
382c0247c7 Adding table column query capability to support ODBC. (CVS 278) 
FossilOrigin-Name: b63b3f3684a3d584ef99f54cde76b6c483bbfef7
 2001-10-06 16:33:02 +00:00
drh
b19a2bc603 Disclaimed copyright. Preparing for release 2.0. (CVS 250) 
FossilOrigin-Name: 4e926efe2b59adfec4086eb1d2ba830238facb4c
 2001-09-16 00:13:26 +00:00
drh
3fc190cc3f All tests now pass. But there are still issues. For example, inserts 
are way too slow.  And additional tests are needed for new features. (CVS 243)

FossilOrigin-Name: e7b65e37fd88c4d69c89cfe73ab345b8b645ada6
 2001-09-14 03:24:23 +00:00
drh
be0072d249 The BTree changes are now integrated and the whole thing compiles and 
links. I have not yet tried to run it, though. (CVS 239)

FossilOrigin-Name: a0a1e701abc52a164d9b09a5426eb12af1fe6a4c
 2001-09-13 14:46:09 +00:00
drh
87c40e88a0 Add ability to quote table and column names in expression. (CVS 235) 
FossilOrigin-Name: 029e3a3a5dd8d4923af50bb2c9f31b1b7cd9439e
 2001-07-23 14:33:02 +00:00
drh
daffd0e597 better handling of out-of-memory errors (CVS 207) 
FossilOrigin-Name: 86b30cd0975dfea9424b9f9f0d4194aa71ce508b
 2001-04-11 14:28:42 +00:00
drh
ff9821a289 Clean up some compiler warnings (CVS 200) 
FossilOrigin-Name: 490d08a8c19d52ebb41999371e2664e29bcb1164
 2001-04-04 21:22:14 +00:00
drh
c4a3c779b1 Added transaction support (CVS 196) 
FossilOrigin-Name: 35a8feed0d10e780c477f7440fbe80637fcf9906
 2001-04-04 11:48:57 +00:00
drh
345fda3ef5 continued progress toward version 2.0 (CVS 177) 
FossilOrigin-Name: c6ffb7ec6acb596907ead8992dfad94e18e83866
 2001-01-15 22:51:08 +00:00
drh
66b89c8f68 Comment changes only (CVS 166) 
FossilOrigin-Name: 5518e012bf35821f65fe2ca7cbafca6a97e7a4ac
 2000-11-28 20:47:17 +00:00
drh
6ec2733b44 Added length() and substr() functions (CVS 143) 
FossilOrigin-Name: 0eef538f3de66fede7c88f8be8c3458d84107c3f
 2000-08-28 15:51:43 +00:00
drh
967e8b7351 :-) (CVS 104) 
FossilOrigin-Name: e1bf96a467b739373191bf75e6a097fc0f24bffc
 2000-06-21 13:59:10 +00:00
drh
1ccde15d69 :-) (CVS 101) 
FossilOrigin-Name: 6ed35a1d477906dc7e35bea0579951484fcdc858
 2000-06-17 13:12:39 +00:00