Class TruncateFunction

  • All Implemented Interfaces:
    java.io.Serializable, org.apache.spark.sql.connector.catalog.functions.Function, org.apache.spark.sql.connector.catalog.functions.UnboundFunction

    public class TruncateFunction
    extends java.lang.Object
    implements org.apache.spark.sql.connector.catalog.functions.UnboundFunction
    A Spark function implementation for the Iceberg truncate transform.

    Example usage: SELECT system.truncate(1, 'abc'), which returns the String 'a'.

    Note that for performance reasons, the given input width is not validated in the implementations used in code-gen. The width must remain non-negative to give meaningful results.

    See Also:
    Serialized Form
    • Constructor Detail

      • TruncateFunction

        public TruncateFunction()
    • Method Detail

      • bind

        public org.apache.spark.sql.connector.catalog.functions.BoundFunction bind​(org.apache.spark.sql.types.StructType inputType)
        Specified by:
        bind in interface org.apache.spark.sql.connector.catalog.functions.UnboundFunction
      • description

        public java.lang.String description()
        Specified by:
        description in interface org.apache.spark.sql.connector.catalog.functions.UnboundFunction
      • name

        public java.lang.String name()
        Specified by:
        name in interface org.apache.spark.sql.connector.catalog.functions.Function