object RowIdMetadataStructField
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- val ROW_ID_METADATA_COL_ATTR_KEY: String
- def apply(materializedColumnName: String, nullable: Boolean = false): StructField
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- def isRowIdColumn(structField: StructField): Boolean
Return true if the column is a Row Id column.
- def isValid(dataType: DataType, metadata: Metadata): Boolean
- def metadata(materializedColumnName: String): Metadata
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- def unapply(field: StructField): Option[StructField]
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