mirrors/sqlite
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
20,046 Commits 1,487 Branches 166 Tags 416 MiB
1972c8cf07
Commit Graph

27 Commits

Author SHA1 Message Date
dan
97c8cb3ed8 Ensure that when a new cursor is opened by OP_OpenDup, any existing cursor 
with the same id opened by a previous OP_OpenDup is closed first.

FossilOrigin-Name: 5c188361a91407805c0feb4bf6d3214522ce3e55013efcf63a4613ecd416bcbc
 2019-01-01 18:00:17 +00:00
drh
4afdfa195b Fix the OP_OpenEphemeral opcode in the bytecode engine so that if it is called 
a second or subsequent time, it merely clears the existing table rather than
creating a new one.  Proposed fix for ticket [d0866b26f83e9c55e30de0821f5d].

FossilOrigin-Name: 4678cb1044f0b4dc813e48f3bd0f85240a66e2ecf8763280d66726cc031c93a7
 2018-12-31 16:36:42 +00:00
drh
3a07548b0d Remove unnecessary whitespace from testcase result strings. 
FossilOrigin-Name: ad70f03ceda74163903d247a975666b35fae722a27c48dd3efd31c1164b5627e
 2018-12-22 15:46:23 +00:00
drh
bb383df7c6 New test case that still hits an assertion fault, just to prove that the 
previous checkin merely made the problem more obscure and did not completely
fix it.

FossilOrigin-Name: a9a3b532643b5f106509bb29c3e6bc9d41ec5b2da5a0cd4067898f376eb626a2
 2018-12-06 19:56:20 +00:00
drh
11df7d2839 Simplify the query flattener so that it does not duplicate the WHERE clause 
of subquery that is being incorporated into the outer query - copies it
directly.  This is more efficient.  And it also fixes the specific test case
show for ticket [f09fcd17810f65f71789525] but it does not resolve the more
general problem that sqlite3ExprDup() does not correctly duplicate expressions
that contain subqueries with window functions.

FossilOrigin-Name: f1b18d44ff855573542c1947a42d4025dff54cacc13dac14d044521762ea9736
 2018-12-06 19:15:36 +00:00
dan
0f5f54062c Fix a problem with using window functions in compound (UNION, INTERSECT etc.) 
queries.

FossilOrigin-Name: 059ff53a46c7f1e4bf3e7dc558312beef67826c2753e2ab7e4e7df498b37b617
 2018-10-23 13:48:19 +00:00
drh
d4cb09e3d2 Disable the ORDER BY LIMIT optimization in queries using window functions. 
This fixes a problem that was introduced by check-in [206720129ed2fa8875a286]
which attempted to fix ticket [9936b2fa443fec03ff25f9].  This changes is
a fix for the follow-in tocket [510cde277783b5fb5de628].

FossilOrigin-Name: c6c9585f294710829ca24b64d70a36fd9f409261dd0661367c6c4198cdbc4c81
 2018-09-17 15:19:13 +00:00
dan
867be212bc Fix another problem that could cause a crash when a window function was used 
in a view.

FossilOrigin-Name: e954145a3addf60247954b9161473cd02ae2400f469840523093e25e23fbc54d
 2018-06-25 11:42:08 +00:00
dan
c316307315 Fix problems with using window-functions in correlated sub-queries. 
FossilOrigin-Name: 3e23cfc8133342a4de6813afdc33d726f06d625424b16d0999fb22be51bf8913
 2018-06-23 19:29:56 +00:00
dan
efa3a3c9cc Fix a problem with using LIMIT in window-function queries. 
FossilOrigin-Name: c1abd2dda4154cb573bdf627cdef794d3697f874c3b70357aaf5e4ed95ad1d5c
 2018-06-23 16:26:20 +00:00
dan
ce1037352d Fix a problem with using a window-function SELECT as a FROM clause sub-query 
in some circumstances.

FossilOrigin-Name: 11d733396f75ef1f206cd6f35630ff176484279861772918b9ea69412c13c62d
 2018-06-23 07:59:39 +00:00
dan
67a9b8eded Omit all window-function related code when building with SQLITE_OMIT_WINDOWFUNC. 
FossilOrigin-Name: 5f04b016467342b5a796bf702ed25b621eb86f2961c1e703d276c93f2cb6aa89
 2018-06-22 20:51:35 +00:00
dan
cc4644183b Fix a problem caused by a sub-query containing a window function in the FROM 
clause of a query that itself uses a window function.

FossilOrigin-Name: f4b1b6f85b53d72e735a1382f7c3de75af405a7878dd8cdcb10394e859ea3d69
 2018-06-19 18:11:05 +00:00
dan
6fb2b54ceb Fix a problem with using min() or max() as a window function. 
FossilOrigin-Name: 801074ce63d3f4825cc9fa508c42629a9f74e7f9e35c5f238343bb1cff4fbae1
 2018-06-19 17:13:11 +00:00
dan
c95f38d456 Fix problems with using window functions in CREATE VIEW statements. 
FossilOrigin-Name: 943bccd2a6bd4cf3e0534c1fa46885bfa2ba7b780ddcdff9f1ea4cbb3f04e786
 2018-06-18 20:34:43 +00:00
dan
660af939b0 Add new API function sqlite3_create_window_function(), for creating new 
aggregate window functions.

FossilOrigin-Name: da03fb4318fd2613ec5c5b109a3974ac1120c19ed16bed4ca85bbdc4b35c998c
 2018-06-18 16:55:22 +00:00
dan
13b08bb6ff Add extra OOM test. 
FossilOrigin-Name: ac251f72608c27c1512a0b3457524f5378a0b13d93d829cf0ed8bc178bc54a73
 2018-06-15 20:46:12 +00:00
dan
e0a5e20fa8 Fix a bug in the lead() and lag() window functions causing them to fail when 
used in queries featuring multiple window functions.

FossilOrigin-Name: 3839fb18f917e4f705821198d624b19d84eb07f1ee29ad23314ab7cec6bf6a2b
 2018-06-15 16:10:44 +00:00
dan
9a94722d48 Fix problem with window functions min() and max() when used with a PARTITION 
clause and a frame starting point other than "UNBOUNDED PRECEDING".

FossilOrigin-Name: 43eb1e75a4d7ac0973ed8589bbaf379c24cdc8eacc4e613610d2d4c24d385dc1
 2018-06-14 19:06:36 +00:00
dan
26522d1c45 Fix handling of window frames containing negative number of rows. e.g. "ROWS x 
PRECEDING AND y PRECEDING" where (x<y).

FossilOrigin-Name: b6d9c7eda853420ae46a05bd432711e8bf9ebaa448c7d90ccfc0bcc338a87706
 2018-06-11 18:16:51 +00:00
dan
8b98560d6e Add support for FILTER clause on aggregate window functions. 
FossilOrigin-Name: ceaf798ea09184bc0e7d3dcf3ad4d909d2e4e7018754a8417a813f33010140a7
 2018-06-09 17:43:45 +00:00
dan
dacf1de95c Do not flatten sub-queries that contain window functions. 
FossilOrigin-Name: 236cb75bd1f0d5eb86aa5f52d8d548e7263c34633833dcea9dfc934f142113b8
 2018-06-08 16:11:55 +00:00
dan
6bc5c9e788 Add implementation of window function ntile(). 
FossilOrigin-Name: 3f093f608c6cc193aac77e7eafa8006c27a7776682d9d7b6e743710dff41ae42
 2018-06-04 18:55:11 +00:00
dan
b6e9f7a4d1 Fix minor problems on this branch. 
FossilOrigin-Name: 19c2e4b2f164521eab84cb0a0e12984be9431eaedd001dd3671e9ea1a6212353
 2018-05-19 14:15:29 +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
2e362f9775 Handle multiple window-functions in a single query. 
FossilOrigin-Name: 35af0b750e70dcf0f343b115f4bbd0860a7e8064be204d4dfba1a43c22ff07b1
 2018-05-17 14:26:27 +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