Module datafusion::functions::core::expr_fn

source ·

Functions§

  • arrow_cast
    returns arg_1 cast to the arrow_type given the second argument. This can be used to cast to a specific arrow_type. Return $name(arg)
  • arrow_typeof
    Returns the Arrow type of the input expression. Return $name(arg)
  • get_field
    Returns the value of the field with the given name from the struct Return $name(arg)
  • nullif
    returns NULL if value1 equals value2; otherwise it returns value1. This can be used to perform the inverse operation of the COALESCE expression. Return $name(arg)
  • nvl
    returns value2 if value1 is NULL; otherwise it returns value1 Return $name(arg)
  • nvl2
    Returns value2 if value1 is not NULL; otherwise, it returns value3. Return $name(arg)
  • struct
    Returns a struct with the given arguments Return $name(arg)