SPI_unregister_relation - Man Page

int SPI_unregister_relation(const char * name)

SPI_unregister_relation removes an ephemeral named relation from the registry for the current connection.

const char * name

If the execution of the command was successful then the following (nonnegative) value will be returned:

SPI_OK_REL_UNREGISTER

if the tuplestore has been successfully removed from the registry

On error, one of the following negative values is returned:

SPI_ERROR_ARGUMENT

if name is NULL

SPI_ERROR_UNCONNECTED

if called from an unconnected C function

SPI_ERROR_REL_NOT_FOUND

if name is not found in the registry for the current connection