MobilityDB 1.1

◆ temporal_joinsel()

double temporal_joinsel ( PlannerInfo *  root,
Oid  operid,
List *  args,
JoinType  jointype,
SpecialJoinInfo *  sjinfo,
TemporalFamily  tempfamily 
)

Return an estimate of the join selectivity for columns of temporal values.

For the traditional comparison operators (<, <=, ...), we follow the approach for range types in PostgreSQL, this function computes the selectivity for <, <=, >, and >=, while the selectivity functions for = and <> are eqsel and neqsel, respectively.