Package com.twilio.kudu.sql.rules

Class KuduSortRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

com.twilio.kudu.sql.rules.KuduSortRule

Direct Known Subclasses:

KuduSortedAggregationRule, KuduSortRule.KuduSortWithFilter, KuduSortRule.KuduSortWithoutFilter

public abstract class KuduSortRule
extends org.apache.calcite.plan.RelOptRule

Two Sort Rules that look to push the Sort into the Kudu RPC. Rule that pushes down the sort into kudu if we are sorting by columns that are a prefix of the primary key columns in the table. This rule eliminates sorting on the client.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KuduSortRule.KuduFilterVisitor	Searches RexNode to see if the Kudu column index -- stored as KuduSortRule.KuduFilterVisitor.mustHave is present in the RexNode and is required.
static class	KuduSortRule.KuduSortWithFilter	Rule to match a Sort above Filter and it is above KuduQuery.
static class	KuduSortRule.KuduSortWithoutFilter	Rule to match a Sort above KuduQuery.

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field	Description
static org.apache.calcite.plan.RelOptRule	FILTER_SORT_RULE
protected List<Integer>	pkSortColumns
static org.apache.calcite.plan.RelOptRule	SIMPLE_SORT_RULE

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor	Description
KuduSortRule(org.apache.calcite.plan.RelOptRuleOperand operand, org.apache.calcite.tools.RelBuilderFactory factory, String description)

Method Summary

Modifier and Type	Method	Description
boolean	canApply(org.apache.calcite.plan.RelTraitSet sortTraits, org.apache.calcite.rex.RexNode offset, KuduQuery query, org.apache.kudu.client.KuduTable openedTable, Optional<org.apache.calcite.rel.core.Filter> filter)
void	perform(org.apache.calcite.plan.RelOptRuleCall call, org.apache.calcite.rel.core.Sort originalSort, KuduQuery query, org.apache.kudu.client.KuduTable openedTable, Optional<org.apache.calcite.rel.core.Filter> filter)

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, onMatch, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

SIMPLE_SORT_RULE

public static final org.apache.calcite.plan.RelOptRule SIMPLE_SORT_RULE

FILTER_SORT_RULE

public static final org.apache.calcite.plan.RelOptRule FILTER_SORT_RULE

pkSortColumns

protected List<Integer> pkSortColumns

Constructor Detail

KuduSortRule

public KuduSortRule(org.apache.calcite.plan.RelOptRuleOperand operand,
                    org.apache.calcite.tools.RelBuilderFactory factory,
                    String description)

Method Detail

canApply

public boolean canApply(org.apache.calcite.plan.RelTraitSet sortTraits,
                        org.apache.calcite.rex.RexNode offset,
                        KuduQuery query,
                        org.apache.kudu.client.KuduTable openedTable,
                        Optional<org.apache.calcite.rel.core.Filter> filter)

perform

public void perform(org.apache.calcite.plan.RelOptRuleCall call,
                    org.apache.calcite.rel.core.Sort originalSort,
                    KuduQuery query,
                    org.apache.kudu.client.KuduTable openedTable,
                    Optional<org.apache.calcite.rel.core.Filter> filter)