3 Commits

Author	SHA1	Message	Date
drh	4fe425ad79	"make test" now passing. ... FossilOrigin-Name: addd7f466d6ff55f82d907286650c26b06e9397b	2013-06-12 17:08:06 +00:00
drh	7699d1c4e5	Refactor the ORDER BY optimizer in the NGQP so that it is easier to maintain ... and so that it can support optimizing out GROUP BY and DISTINCT clauses. FossilOrigin-Name: e605c468e3a1163167831c4a6220825c0b5d083b	2013-06-04 12:42:29 +00:00
dan	99f8fb66a4	Fix for 2a5629202f. When considering whether or not a UNIQUE index may be used to optimize an ORDER BY clause, do not assume that all index entries are distinct unless there is some reason to believe that the index contains no NULL values. ... FossilOrigin-Name: 9870e4c4fef10112c987c40cb1b95255a7214202	2012-04-20 15:24:53 +00:00