45.2. Interface Support Functions #

   SPI_fname — determine the column name for the specified column number
   SPI_fnumber — determine the column number for the specified column name
   SPI_getvalue — return the string value of the specified column
   SPI_getbinval — return the binary value of the specified column
   SPI_gettype — return the data type name of the specified column
   SPI_gettypeid — return the data type OID of the specified column
   SPI_getrelname — return the name of the specified relation
   SPI_getnspname — return the namespace of the specified relation
   SPI_result_code_string — return error code as string

   The functions described here provide an interface for extracting
   information from result sets returned by SPI_execute and other SPI
   functions.

   All functions described in this section can be used by both connected
   and unconnected C functions.