Commits on Nov 5, 2020

1. sql: add support for joinReader to be the first join in paired joins …

   This is to allow lookup joins to be used for left outer/semi/anti
   joins with non-covering indexes. Currently only semi joins for
   this case can use the index (by doing two inner joins and a DistinctOn)
   
   Paired joins with a non-covering index will be used as follows:
   - Left outer join: will become a pair of left outer lookup joins.
   - Left anti join: will be a left outer lookup join followed by
     a left anti lookup join.
   - Left semi join: will be an inner lookup join followed by a
     left semi lookup join.
   
   This PR does not contain the optimizer changes.
   
   Informs cockroachdb#55452
   
   Release note: None

   

   sumeerbhola committed Nov 5, 2020
   Configuration menu

   • View commit details
   • Copy full SHA for 37ed2f4
   • Browse repository at this point

   Copy the full SHA

   37ed2f4 View commit details

   Browse the repository at this point in the history