org.apache.flink.table.planner.utils

Class DynamicPartitionPruningUtils

java.lang.Object

org.apache.flink.table.planner.utils.DynamicPartitionPruningUtils

public class DynamicPartitionPruningUtils
extends Object

Planner utils for Dynamic partition Pruning.

Constructor Summary

Constructors

Constructor and Description
DynamicPartitionPruningUtils()

Method Summary

Modifier and Type	Method and Description
static Tuple2<Boolean,org.apache.calcite.rel.RelNode>	canConvertAndConvertDppFactSide(org.apache.calcite.rel.RelNode rel, org.apache.calcite.util.ImmutableIntList joinKeys, org.apache.calcite.rel.RelNode dimSide, org.apache.calcite.util.ImmutableIntList dimSideJoinKey) Judge whether the input RelNode can be converted to the dpp fact side.
static boolean	isDppDimSide(org.apache.calcite.rel.RelNode rel) Judge whether the input RelNode meets the conditions of dimSide.
static boolean	isSuitableJoin(org.apache.calcite.rel.core.Join join) Judge whether the join node is suitable one for dpp pattern.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DynamicPartitionPruningUtils

public DynamicPartitionPruningUtils()

Method Detail

isDppDimSide

public static boolean isDppDimSide(org.apache.calcite.rel.RelNode rel)

Judge whether the input RelNode meets the conditions of dimSide. If joinKeys is null means we need not consider the join keys in dim side, which already deal by dynamic partition pruning rule. If joinKeys not null means we need to judge whether joinKeys changed in dim side, if changed, this RelNode is not dim side.

canConvertAndConvertDppFactSide

public static Tuple2<Boolean,org.apache.calcite.rel.RelNode> canConvertAndConvertDppFactSide(org.apache.calcite.rel.RelNode rel,
                                                                                             org.apache.calcite.util.ImmutableIntList joinKeys,
                                                                                             org.apache.calcite.rel.RelNode dimSide,
                                                                                             org.apache.calcite.util.ImmutableIntList dimSideJoinKey)

Judge whether the input RelNode can be converted to the dpp fact side. If the input RelNode can be converted, this method will return the converted fact side whose partitioned table source will be converted to BatchPhysicalDynamicFilteringTableSourceScan, If not, this method will return the origin RelNode.

isSuitableJoin

public static boolean isSuitableJoin(org.apache.calcite.rel.core.Join join)

Judge whether the join node is suitable one for dpp pattern.