bulk-cdk-toolkit-load-iceberg-parquet/io.airbyte.cdk.load.toolkits.iceberg.parquet/IcebergSuperTypeFinder

IcebergSuperTypeFinder

@Singleton

class IcebergSuperTypeFinder(icebergTypesComparator: IcebergTypesComparator)

A utility class that determines a "supertype" given two Iceberg Types.

The "supertype" is a type to which both input types can safely be promoted without data loss. For instance, INT can be promoted to LONG, FLOAT can be promoted to DOUBLE, etc.

Constructors

IcebergSuperTypeFinder

constructor(icebergTypesComparator: IcebergTypesComparator)

Functions

findSuperType

fun findSuperType(existingType: Type, incomingType: Type, columnName: String): Type

Returns a supertype for existingType and incomingType if one exists.