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Author SHA1 Message Date
drh 82759754ce Use histogram data to improve the row-count estimates on equality constraints. 
FossilOrigin-Name: 6bfc5c69eb22938972bbf4e60179952dc215f770
 2011-01-20 16:52:09 +00:00
drh e847d3247f The first of a planned series of enhancements to the query planner that 
enable it to make better use of sqlite_stat2 histograms when the table
has many repeated values.

FossilOrigin-Name: 2cd374cd23fa2fd38f49090d6eeb9b1e521d51d5
 2011-01-20 02:56:37 +00:00