Uses of Interface
org.apache.drill.exec.record.metadata.VariantMetadata
Package
Description
Handles the details of the result set loader implementation.
The "row set model" provides a "dual" of the vector structure used to create,
allocate and work with a collection of vectors.
Provides a fluent schema builder.
Provides a light-weight, simplified set of column readers and writers that
can be plugged into a variety of row-level readers and writers.
Provides the reader hierarchy as explained in the API package.
Implementation of the vector writers.
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Uses of VariantMetadata in org.apache.drill.exec.physical.resultSet.impl
Modifier and TypeMethodDescriptionvoid
BuildFromSchema.buildUnion
(VariantWriter writer, VariantMetadata schema) -
Uses of VariantMetadata in org.apache.drill.exec.physical.resultSet.model
Modifier and TypeMethodDescriptionMetadataProvider.ArraySchemaCreator.variant()
MetadataProvider.ArraySchemaRetrieval.variant()
MetadataProvider.MetadataCreator.variant()
MetadataProvider.MetadataRetrieval.variant()
MetadataProvider.variant()
MetadataProvider.VariantSchemaCreator.variant()
MetadataProvider.VariantSchemaRetrieval.variant()
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Uses of VariantMetadata in org.apache.drill.exec.record.metadata
Modifier and TypeMethodDescriptionAbstractColumnMetadata.variantSchema()
ColumnMetadata.variantSchema()
Schema forVARIANT
columns.VariantColumnMetadata.variantSchema()
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Uses of VariantMetadata in org.apache.drill.exec.vector.accessor
Modifier and TypeMethodDescriptionVariantReader.variantSchema()
VariantWriter.variantSchema()
Metadata description of the variant that includes the set of types, along with extended properties of the types such as expected allocations sizes, expected array cardinality, etc. -
Uses of VariantMetadata in org.apache.drill.exec.vector.accessor.reader
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Uses of VariantMetadata in org.apache.drill.exec.vector.accessor.writer