org.apache.beam.sdk.extensions.sql.impl.planner

Interface NodeStatsMetadata

All Superinterfaces:

org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.Metadata

public interface NodeStatsMetadata
extends org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.Metadata

This is a metadata used for row count and rate estimation. It extends Calcite's Metadata interface so that we can use MetadataQuery to get our own estimates.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	NodeStatsMetadata.Handler Handler API.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata>	DEF
static java.lang.reflect.Method	METHOD

Method Summary

Modifier and Type	Method and Description
NodeStats	getNodeStats()

Methods inherited from interface org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.Metadata

rel

Field Detail

METHOD

static final java.lang.reflect.Method METHOD

DEF

static final org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata> DEF

Method Detail

getNodeStats

NodeStats getNodeStats()