SPI_unregister_relation
SPI_unregister_relation — remove an ephemeral named relation from the registry
Synopsis
int SPI_unregister_relation(const char * name)
Description
SPI_unregister_relation removes an ephemeral named relation from the registry for the current connection. 
Arguments
- const char *- name
- the relation registry entry name 
Return Value
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 - nameis- NULL
- SPI_ERROR_UNCONNECTED
- if called from an unconnected procedure 
- SPI_ERROR_REL_NOT_FOUND
- if - nameis not found in the registry for the current connection

