BuildNode used to build the plannode tree.

GetProject return the project which is used in explain.

LookupFromWhere used to get the routing from the where clause.

NewAggregatePlan used to create AggregatePlan.

NewLimitPlan used to create LimitPlan.

NewOrderByPlan used to create OrderByPlan.

ASC enum.

Cartesian product.

ChildTypeAggregate enum.

ChildTypeLimit enum.

ChildTypeOrderby enum.

DESC enum.

NestLoop Join.

SortMerge Join.

AggregatePlan represents order-by plan.

Aggregator tuple.

Comparison is record the sqlparser.Comparison info.

JoinKey is the column info in the on conditions.

JoinNode cannot be pushed down.

LimitPlan represents order-by plan.

MergeNode can be pushed down.

OrderBy tuple.

OrderByPlan represents order-by plan.

UnionNode ..

ChildPlan interface.

PlanNode interface.

ChildType type.

Direction type.

JoinStrategy is Join Strategy.