Uses of Interface
org.apache.drill.exec.physical.impl.scan.RowBatchReader
Package
Description
Defines the scan operation implementation.
Defines the projection, vector continuity and other operations for
a set of one or more readers.
Implements the details of the scan lifecycle for a set of readers,
primarily the process of resolving the scan output schema from a variety
of input schemas, then running each reader, each of which will produce
some number of batches.
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Uses of RowBatchReader in org.apache.drill.exec.physical.impl.scan
Modifier and TypeMethodDescriptionScanOperatorEvents.nextReader()
A scanner typically readers multiple data sources (such as files or file blocks.) A batch reader handles each read. -
Uses of RowBatchReader in org.apache.drill.exec.physical.impl.scan.framework
Modifier and TypeClassDescriptionclass
Represents a layer of row batch reader that works with a result set loader and schema manager to structure the data read by the actual row batch reader. -
Uses of RowBatchReader in org.apache.drill.exec.physical.impl.scan.v3.lifecycle
Modifier and TypeClassDescriptionclass
Manages the schema and batch construction for a managed reader.