Module datafusion_functions::core::expr_fn

Functions

• arrow_cast
  returns value1 cast to the arrow_type given the second argument. This can be used to cast to a specific arrow_type.
• arrow_typeof
  Returns the Arrow type of the input expression.
• coalesce
  Returns coalesce(args...), which evaluates to the value of the first expr which is not NULL
• get_field
  Returns the value of the field with the given name from the struct
• named_struct
  Returns a struct with the given names and arguments pairs
• nullif
  returns NULL if value1 equals value2; otherwise it returns value1. This can be used to perform the inverse operation of the COALESCE expression
• nvl
  Returns value2 if value1 is NULL; otherwise it returns value1
• nvl2
  Returns value2 if value1 is not NULL; otherwise, it returns value3.
• struct
  Returns a struct with the given arguments