class SqlDerivationSpark extends SqlDerivationSparkStrategy
This class executes SQL-expression based derived feature.
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- SqlDerivationSparkStrategy
- DerivationStrategy
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- new SqlDerivationSpark()
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def
apply(keyTags: Seq[Int], keyTagList: Seq[String], df: DataFrame, derivedFeature: DerivedFeature, derivationFunction: SQLFeatureDerivationFunction, mvelContext: Option[FeathrExpressionExecutionContext]): DataFrame
Apply the derivation strategy.
Apply the derivation strategy.
- keyTags
keyTags for the derived feature.
- keyTagList
integer keyTag to string keyTag map.
- df
input DataFrame.
- derivedFeature
Derived feature metadata.
- derivationFunction
Derivation function to evaluate the derived feature
- returns
output DataFrame with derived feature.
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- SqlDerivationSpark → DerivationStrategy
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