5 Commits

Author	SHA1	Message	Date
drh	7e6f980bd4	Proposed fix for ticket [b899b6042f97f5] ... FossilOrigin-Name: c7f9f47b239fdd99b555fb0a31eb82b22dbe6c821f1612d67a0d6a822288d9f7	2017-09-04 00:33:04 +00:00
dan	c456a76fb3	When generating individual loops for each ORed term of an OR scan, move any ... constant WHERE expressions outside of the loop, as is done for top-level loops. FossilOrigin-Name: e4a022be4b069b08cfdfda5295461676b99d28e17bbbedfbcb362dec69de59bd	2017-06-22 16:51:16 +00:00
drh	f46af73720	If the cost of two whereLoop objects is the same in every way except that ... one has fewer expected output rows than the other, then choose the one with fewer output rows. FossilOrigin-Name: 79e458ef7acfddbc189163e3e958da529becb130	2013-08-30 17:35:44 +00:00
drh	fd5874d23d	Add the "queryplanner" test permutation. Continuing refinements to NGQP. ... FossilOrigin-Name: 25e2cde105a19293bdb9c001b48624e5d7f8c4e5	2013-06-12 14:52:39 +00:00
drh	782d68a4cd	Try to take into account the cost of inner loops when selecting which table ... of a join to use for the outer loop. FossilOrigin-Name: 942556342a332b04a11169bb04f387d741ef9488	2012-11-09 17:59:26 +00:00