Uses of Interface
org.apache.drill.exec.physical.impl.scan.v3.schema.ScanSchemaTracker
Package
Description
Provides the "version 3" scan framework (which can also be thought of
as EVF version 2).
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.
Provides run-time semantic analysis of the projection list for the
scan operator.
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Uses of ScanSchemaTracker in org.apache.drill.exec.physical.impl.scan.v3
Modifier and TypeMethodDescriptionvoid
ScanLifecycleBuilder.SchemaValidator.validate
(ScanSchemaTracker schema) -
Uses of ScanSchemaTracker in org.apache.drill.exec.physical.impl.scan.v3.file
ModifierConstructorDescriptionImplicitFileColumnsHandler
(DrillFileSystem dfs, OptionSet options, FileScanLifecycleBuilder scanOptions, ResultVectorCache vectorCache, ScanSchemaTracker schemaTracker) -
Uses of ScanSchemaTracker in org.apache.drill.exec.physical.impl.scan.v3.lifecycle
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Uses of ScanSchemaTracker in org.apache.drill.exec.physical.impl.scan.v3.schema
Modifier and TypeClassDescriptionclass
Base class for the projection-based and defined-schema-based scan schema trackers.class
Schema tracker for the "normal" case in which schema starts from a simple projection list of column names, optionally with a provided schema.class
Simple "tracker" based on a defined, fixed schema.