com.facebook.presto.hive.rule

Class BaseSubfieldExtractionRewriter

java.lang.Object

com.facebook.presto.spi.plan.PlanVisitor<PlanNode,ConnectorPlanRewriter.RewriteContext<C>>

com.facebook.presto.spi.ConnectorPlanRewriter<Void>

com.facebook.presto.hive.rule.BaseSubfieldExtractionRewriter

public abstract class BaseSubfieldExtractionRewriter
extends ConnectorPlanRewriter<Void>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BaseSubfieldExtractionRewriter.ConnectorPushdownFilterResult
static class	BaseSubfieldExtractionRewriter.RemainingExpressions

Nested classes/interfaces inherited from class com.facebook.presto.spi.ConnectorPlanRewriter

ConnectorPlanRewriter.RewriteContext<C>

Field Summary

Fields

Modifier and Type	Field and Description
protected RowExpressionService	rowExpressionService
protected Function<TableHandle,ConnectorMetadata>	transactionToMetadata

Constructor Summary

Constructors

Constructor and Description
BaseSubfieldExtractionRewriter(ConnectorSession session, PlanNodeIdAllocator idAllocator, RowExpressionService rowExpressionService, StandardFunctionResolution functionResolution, FunctionMetadataManager functionMetadataManager, Function<TableHandle,ConnectorMetadata> transactionToMetadata)

Method Summary

Modifier and Type	Method and Description
protected static Set<VariableReferenceExpression>	extractVariableExpressions(RowExpression expression)
protected abstract BaseSubfieldExtractionRewriter.ConnectorPushdownFilterResult	getConnectorPushdownFilterResult(Map<String,ColumnHandle> columnHandles, ConnectorMetadata metadata, ConnectorSession session, BaseSubfieldExtractionRewriter.RemainingExpressions remainingExpressions, DomainTranslator.ExtractionResult<Subfield> decomposedFilter, RowExpression optimizedRemainingExpression, Constraint<ColumnHandle> constraint, Optional<ConnectorTableLayoutHandle> currentLayoutHandle, ConnectorTableHandle tableHandle)
protected abstract boolean	isPushdownFilterSupported(ConnectorSession session, TableHandle tableHandle)
BaseSubfieldExtractionRewriter.ConnectorPushdownFilterResult	pushdownFilter(ConnectorSession session, ConnectorMetadata metadata, ConnectorTableHandle tableHandle, RowExpression filter, Optional<ConnectorTableLayoutHandle> currentLayoutHandle)
boolean	useDynamicFilter(RowExpression expression, ConnectorTableHandle tableHandle, Map<String,ColumnHandle> columnHandleMap)
PlanNode	visitFilter(FilterNode filter, ConnectorPlanRewriter.RewriteContext<Void> context)
PlanNode	visitTableScan(TableScanNode tableScan, ConnectorPlanRewriter.RewriteContext<Void> context)

Methods inherited from class com.facebook.presto.spi.ConnectorPlanRewriter

rewriteWith, rewriteWith, visitPlan

Methods inherited from class com.facebook.presto.spi.plan.PlanVisitor

visitAggregation, visitConnectorJoinNode, visitCteConsumer, visitCteProducer, visitCteReference, visitDistinctLimit, visitExcept, visitIntersect, visitLimit, visitMarkDistinct, visitOutput, visitProject, visitSequence, visitTopN, visitUnion, visitValues

Methods inherited from class java.lang.Object

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

Field Detail

rowExpressionService

protected final RowExpressionService rowExpressionService

transactionToMetadata

protected final Function<TableHandle,ConnectorMetadata> transactionToMetadata

Constructor Detail

BaseSubfieldExtractionRewriter

public BaseSubfieldExtractionRewriter(ConnectorSession session,
                                      PlanNodeIdAllocator idAllocator,
                                      RowExpressionService rowExpressionService,
                                      StandardFunctionResolution functionResolution,
                                      FunctionMetadataManager functionMetadataManager,
                                      Function<TableHandle,ConnectorMetadata> transactionToMetadata)

Method Detail

visitFilter

public PlanNode visitFilter(FilterNode filter,
                            ConnectorPlanRewriter.RewriteContext<Void> context)

Overrides:

visitFilter in class PlanVisitor<PlanNode,ConnectorPlanRewriter.RewriteContext<Void>>

visitTableScan

public PlanNode visitTableScan(TableScanNode tableScan,
                               ConnectorPlanRewriter.RewriteContext<Void> context)

Overrides:

visitTableScan in class PlanVisitor<PlanNode,ConnectorPlanRewriter.RewriteContext<Void>>

pushdownFilter

public BaseSubfieldExtractionRewriter.ConnectorPushdownFilterResult pushdownFilter(ConnectorSession session,
                                                                                   ConnectorMetadata metadata,
                                                                                   ConnectorTableHandle tableHandle,
                                                                                   RowExpression filter,
                                                                                   Optional<ConnectorTableLayoutHandle> currentLayoutHandle)

getConnectorPushdownFilterResult

protected abstract BaseSubfieldExtractionRewriter.ConnectorPushdownFilterResult getConnectorPushdownFilterResult(Map<String,ColumnHandle> columnHandles,
                                                                                                                 ConnectorMetadata metadata,
                                                                                                                 ConnectorSession session,
                                                                                                                 BaseSubfieldExtractionRewriter.RemainingExpressions remainingExpressions,
                                                                                                                 DomainTranslator.ExtractionResult<Subfield> decomposedFilter,
                                                                                                                 RowExpression optimizedRemainingExpression,
                                                                                                                 Constraint<ColumnHandle> constraint,
                                                                                                                 Optional<ConnectorTableLayoutHandle> currentLayoutHandle,
                                                                                                                 ConnectorTableHandle tableHandle)

isPushdownFilterSupported

protected abstract boolean isPushdownFilterSupported(ConnectorSession session,
                                                     TableHandle tableHandle)

extractVariableExpressions

protected static Set<VariableReferenceExpression> extractVariableExpressions(RowExpression expression)

useDynamicFilter

public boolean useDynamicFilter(RowExpression expression,
                                ConnectorTableHandle tableHandle,
                                Map<String,ColumnHandle> columnHandleMap)