object TestWriterMetadataNoAutoUpdateFeature extends WriterFeature with FeatureAutomaticallyEnabledByMetadata
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!=(arg0: Any): Boolean
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- val TABLE_PROP_KEY: String
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final
def
asInstanceOf[T0]: T0
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def
automaticallyUpdateProtocolOfExistingTables: Boolean
Whether the feature can automatically update the protocol of an existing table when the metadata requirements are satisfied.
Whether the feature can automatically update the protocol of an existing table when the metadata requirements are satisfied. As a rule of thumb, a table feature that requires explicit operations (e.g., turning on a table property) should set this flag to
true, while features that are used implicitly (e.g., when using a new data type) should set this flag tofalse.- Definition Classes
- FeatureAutomaticallyEnabledByMetadata
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isInstanceOf[T0]: Boolean
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def
isLegacyFeature: Boolean
Determine if this feature is a legacy feature.
Determine if this feature is a legacy feature. See the documentation of TableFeature for more information.
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- TableFeature
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def
isReaderWriterFeature: Boolean
Determine if this feature applies to both readers and writers.
Determine if this feature applies to both readers and writers.
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- TableFeature
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def
isRemovable: Boolean
True if this feature can be removed.
True if this feature can be removed.
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def
metadataRequiresFeatureToBeEnabled(protocol: Protocol, metadata: Metadata, spark: SparkSession): Boolean
Determine whether the feature must be supported and enabled because its metadata requirements are satisfied.
Determine whether the feature must be supported and enabled because its metadata requirements are satisfied.
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- TestWriterMetadataNoAutoUpdateFeature → FeatureAutomaticallyEnabledByMetadata
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def
minProtocolVersion: Protocol
Get a Protocol object stating the minimum reader and writer versions this feature requires.
Get a Protocol object stating the minimum reader and writer versions this feature requires. For a feature that can only be explicitly supported, this method returns a protocol version that supports table features, either
(0,7)or(3,7)depending on the feature is writer-only or reader-writer. For a legacy feature that can be implicitly supported, this method returns the first protocol version which introduced the said feature.For all features, if the table's protocol version does not support table features, then the minimum protocol version is enough. However, if the protocol version supports table features for the feature type (writer-only or reader-writer), then the minimum protocol version is not enough to support a feature. In this case the feature must also be explicitly listed in the appropriate feature sets in the Protocol.
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val
minReaderVersion: Int
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val
minWriterVersion: Int
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val
name: String
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ne(arg0: AnyRef): Boolean
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notify(): Unit
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notifyAll(): Unit
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def
requiredFeatures: Set[TableFeature]
Set of table features that this table feature depends on.
Set of table features that this table feature depends on. I.e. the set of features that need to be enabled if this table feature is enabled.
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- TableFeature
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