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omit-awk
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10 Commits

Author SHA1 Message Date
drh
edb04ed946 Continue to support the (broken) legacy syntax of allowing strings for 
column names in CREATE INDEX statements and in UNIQUE and PRIMARY KEY
constraints.

FossilOrigin-Name: 3d3df79bfaf9dbc7aa711c08a19d2f6dbe744b32
 2015-09-04 12:54:01 +00:00
dan
3072b537f5 Do not assume that "col IS ?" matches at most a single row of a UNIQUE column unless the column is also NOT NULL. 
FossilOrigin-Name: e038ce8955e785afcc07bb22499955bbd22a7af4
 2015-05-15 19:59:23 +00:00
drh
e8d0c61f0a A new implementation of indexing with the IS operator that works correctly 
when the IS operator is in the WHERE clause and the operands are from 
opposite sides of a LEFT JOIN.

FossilOrigin-Name: 4541688b3f56f5cd3d5b299594b58c577ad633bb
 2015-05-14 01:05:25 +00:00
drh
cfc6ca4179 Seek past NULLs in a top-constrained search. Avoid checking for NULLs in 
the body of the search.

FossilOrigin-Name: e07a32f30862acf3b322d4d8deb015846d6f8f5f
 2014-02-14 23:49:13 +00:00
danielk1977
284f4aca32 Fix compilation/testing with OMIT_SUBQUERY defined. Ticket #2828. (CVS 4603) 
FossilOrigin-Name: 0b34a18651764e650faba983be8593992ab2f4a9
 2007-12-10 05:03:46 +00:00
danielk1977
4152e677b8 Fixes for compilation/testing when the various OMIT macros are defined. (CVS 4423) 
FossilOrigin-Name: c8405b15c074c94dab5e33272cf1471f458d11df
 2007-09-12 17:01:45 +00:00
danielk1977
39984cdc8b Fix a vdbe stack leak that could occur where one side of a WHERE clause inequality evaluated to SQL null. (CVS 4045) 
FossilOrigin-Name: 17152bf1a268e130f0c43046bb438b617a747ff5
 2007-06-02 07:54:37 +00:00
drh
72e8fa42f9 Correctly handle NULLs in IN operators. Ticket #2273. 
The changes in where.c and in the WhereLevel.aInLoop structure are
not strictly necessary to fix this problem - they just make the code
easier to read.  Only the change in OP_Next/OP_Prev operator of vdbe.c
is required. (CVS 3735)

FossilOrigin-Name: 26348556d824c032851e409ac510cddb55c200bf
 2007-03-28 14:30:06 +00:00
drh
f2d315d0c2 Fix an additional problem with the IS NULL optimization on LEFT JOINs. 
Ticket #2189.  See also ticket #2177. (CVS 3602)

FossilOrigin-Name: 358dd82d3a921228155e2cf9e22aedd2b651ca9c
 2007-01-25 16:56:06 +00:00
drh
c49de5d98c Make sure the IS NULL optimization introduced by check-in (3494) correctly 
handles a LEFT JOIN where the a term from the right table of the join uses
an IS NULL constraint.  Ticket #2177.  This check-in also adds the new test
cases that were suppose to have been added with (3494) but which were
mistakenly omitted. (CVS 3595)

FossilOrigin-Name: 335863e4d16113fb9ecebce35d2db043771d98b1
 2007-01-19 01:06:01 +00:00