Package dev.frostlake.functions.scalar.encoding

Class Compress

java.lang.Object
dev.frostlake.functions.BuiltInFunction
dev.frostlake.functions.scalar.encoding.Compress
public class Compress extends BuiltInFunction
COMPRESS(input, method) — compresses the input (a string's UTF-8 bytes, or a BINARY value's bytes) with method and returns the compressed bytes as BINARY, matching Snowflake's return type.

The method is mandatory: Snowflake has no default and rejects COMPRESS('hello') with "not enough arguments for function [COMPRESS('hello')], expected 2, got 1" (SQLSTATE 22023, error 938). Either argument being NULL yields NULL, without validating the other.

  • Constructor Details

    • Compress

      public Compress()

  • Method Details

    • evaluate

      public Object evaluate(List<Object> args)
      Description copied from class: BuiltInFunction
      Computes the function's result over its already-evaluated argument values. A SQL NULL argument arrives as Java null, and returning null makes the SQL result NULL.
      Specified by:
      evaluate in class BuiltInFunction
      Parameters:
      args - the argument values, in call order
      Returns:
      the function's value for these arguments, or null for SQL NULL

    • getMinArgCount

      public int getMinArgCount()
      Description copied from class: BuiltInFunction
      The fewest arguments a call to this function may pass; fewer is an argument-count error.
      Specified by:
      getMinArgCount in class BuiltInFunction
      Returns:
      the minimum accepted argument count

    • getMaxArgCount

      public int getMaxArgCount()
      Description copied from class: BuiltInFunction
      The most arguments a call to this function may pass; Integer.MAX_VALUE marks a variadic function (see BuiltInFunction.isVariadic()).
      Specified by:
      getMaxArgCount in class BuiltInFunction
      Returns:
      the maximum accepted argument count