public static interface BuiltInMetadata.NonCumulativeCost extends Metadata
Modifier and Type | Interface and Description |
---|---|
static interface |
BuiltInMetadata.NonCumulativeCost.Handler
Handler API.
|
Modifier and Type | Field and Description |
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static MetadataDef<BuiltInMetadata.NonCumulativeCost> |
DEF |
Modifier and Type | Method and Description |
---|---|
RelOptCost |
getNonCumulativeCost()
Estimates the cost of executing a relational expression, not counting the
cost of its inputs.
|
static final MetadataDef<BuiltInMetadata.NonCumulativeCost> DEF
RelOptCost getNonCumulativeCost()
RelNode.computeSelfCost(org.apache.calcite.plan.RelOptPlanner, org.apache.calcite.rel.metadata.RelMetadataQuery)
,
but metadata providers can override this with their own cost models.Copyright © 2012–2019 The Apache Software Foundation. All rights reserved.