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org.apache.spark.sql.catalyst.util

GeneratedColumn

object GeneratedColumn

This object contains utility methods and values for Generated Columns

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. val GENERATION_EXPRESSION_METADATA_KEY: String

    The metadata key for saving a generation expression in a generated column's metadata.

    The metadata key for saving a generation expression in a generated column's metadata. This is only used internally and connectors should access generation expressions from the V2 columns.

  5. final def asInstanceOf[T0]: T0
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  10. final def getClass(): Class[_]
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  11. def getGenerationExpression(field: StructField): Option[String]

    Returns the generation expression stored in the column metadata if it exists

  12. def hasGeneratedColumns(schema: StructType): Boolean

    Whether the schema has one or more generated columns

  13. def hashCode(): Int
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  14. def isGeneratedColumn(field: StructField): Boolean

    Whether the given field is a generated column

  15. final def isInstanceOf[T0]: Boolean
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  16. final def ne(arg0: AnyRef): Boolean
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  20. def toString(): String
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  21. def validateGeneratedColumns(schema: StructType, catalog: TableCatalog, ident: Identifier, statementType: String): Unit

    If schema contains any generated columns: 1) Check whether the table catalog supports generated columns.

    If schema contains any generated columns: 1) Check whether the table catalog supports generated columns. Otherwise throw an error. 2) Parse, analyze and verify the generation expressions for any generated columns.

  22. final def wait(): Unit
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  23. final def wait(arg0: Long, arg1: Int): Unit
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  24. final def wait(arg0: Long): Unit
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