SPI_unregister_relation — remove an ephemeral named relation from the registry
int SPI_unregister_relation(const char * name)
SPI_unregister_relation removes an ephemeral named
relation from the registry for the current connection.
const char * namethe relation registry entry name
If the execution of the command was successful then the following (nonnegative) value will be returned:
SPI_OK_REL_UNREGISTERif 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_UNCONNECTEDif called from an unconnected C function
SPI_ERROR_REL_NOT_FOUND
if name is not found in the registry for the
current connection