Type Members

1.  case class BroadcastIndexJoinExec(left: SparkPlan, right: SparkPlan, streamShape: Expression, indexBuildSide: JoinSide, windowJoinSide: JoinSide, joinType: JoinType, spatialPredicate: SpatialPredicate, extraCondition: Option[Expression] = None, distance: Option[Expression] = None) extends SparkPlan with SedonaBinaryExecNode with TraitJoinQueryBase with Logging with Product with Serializable
2.  case class DistanceJoinExec(left: SparkPlan, right: SparkPlan, leftShape: Expression, rightShape: Expression, distance: Expression, distanceBoundToLeft: Boolean, spatialPredicate: SpatialPredicate, isGeography: Boolean, extraCondition: Option[Expression] = None) extends SparkPlan with SedonaBinaryExecNode with TraitJoinQueryExec with Logging with Product with Serializable

   Distance joins requires matching geometries to be in the same partition, despite not necessarily overlapping.

   Distance joins requires matching geometries to be in the same partition, despite not necessarily overlapping. To create an overlap and guarantee matching geometries end up in the same partition, the left geometry is expanded before partitioning. It's the logical equivalent of:

   select * from a join b on ST_Distance(a.geom, b.geom) <= 1

   becomes

   select * from a join b on ST_Intersects(ST_Envelope(ST_Buffer(a.geom, 1)), b.geom) and ST_Distance(a.geom, b.geom) <= 1

   left

   left side of the join

   right

   right side of the join

   leftShape

   expression for the first argument of spatialPredicate

   rightShape

   expression for the second argument of spatialPredicate

   distance

   - ST_Distance(left, right) <= distance. Distance can be literal or a computation over 'left' or 'right'.

   distanceBoundToLeft

   whether distance expression references attributes from left relation or right relation

   spatialPredicate

   spatial predicate as join condition

   extraCondition

   extra join condition other than spatialPredicate

3.  case class JoinQueryDetection(left: LogicalPlan, right: LogicalPlan, leftShape: Expression, rightShape: Expression, spatialPredicate: SpatialPredicate, isGeography: Boolean, extraCondition: Option[Expression] = None, distance: Option[Expression] = None) extends Product with Serializable
4.  class JoinQueryDetector extends Strategy

   Plans RangeJoinExec for inner joins on spatial relationships ST_Contains(a, b) and ST_Intersects(a, b).

   Plans RangeJoinExec for inner joins on spatial relationships ST_Contains(a, b) and ST_Intersects(a, b).

   Plans DistanceJoinExec for inner joins on spatial relationship ST_Distance(a, b) < r.

   Plans BroadcastIndexJoinExec for inner joins on spatial relationships with a broadcast hint.

5.  sealed trait JoinSide extends AnyRef
6.  case class RangeJoinExec(left: SparkPlan, right: SparkPlan, leftShape: Expression, rightShape: Expression, spatialPredicate: SpatialPredicate, extraCondition: Option[Expression] = None) extends SparkPlan with SedonaBinaryExecNode with TraitJoinQueryExec with Logging with Product with Serializable

   ST_Contains(left, right) - left contains right or ST_Intersects(left, right) - left and right intersect

   ST_Contains(left, right) - left contains right or ST_Intersects(left, right) - left and right intersect

   left

   left side of the join

   right

   right side of the join

   leftShape

   expression for the first argument of spatialPredicate

   rightShape

   expression for the second argument of spatialPredicate

   spatialPredicate

   spatial predicate as join condition

   extraCondition

   extra join condition other than spatialPredicate

7.  case class SpatialIndexExec(child: SparkPlan, shape: Expression, indexType: IndexType, isGeography: Boolean, distance: Option[Expression] = None) extends SparkPlan with SedonaUnaryExecNode with TraitJoinQueryBase with Logging with Product with Serializable
8.  trait TraitJoinQueryBase extends AnyRef
9.  trait TraitJoinQueryExec extends TraitJoinQueryBase