public static interface BuiltInMetadata.NodeTypes extends Metadata
For each relational expression, it returns a multimap from the class to the nodes instantiating that class. Each node will appear in the multimap only once.
Modifier and Type | Interface and Description |
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static interface |
BuiltInMetadata.NodeTypes.Handler
Handler API.
|
Modifier and Type | Field and Description |
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static MetadataDef<BuiltInMetadata.NodeTypes> |
DEF |
Modifier and Type | Method and Description |
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com.google.common.collect.Multimap<java.lang.Class<? extends RelNode>,RelNode> |
getNodeTypes()
Returns a multimap from the class to the nodes instantiating that
class.
|
static final MetadataDef<BuiltInMetadata.NodeTypes> DEF
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