PostgreSQL
SPI_register_relation
SPI_register_relation — make an ephemeral named relation available by name in SPI queries
Description
SPI_register_relation makes an ephemeral named relation, with associated information, available to queries planned and executed through the current SPI connection.
Return Value
If the execution of the command was successful then the following (nonnegative) value will be returned:
SPI_OK_REL_REGISTER-
if the relation has been successfully registered by name
On error, one of the following negative values is returned:
SPI_ERROR_ARGUMENT-
if `enr
is `NULL or itsnamefield isNULL SPI_ERROR_UNCONNECTED-
if called from an unconnected C function
SPI_ERROR_REL_DUPLICATE-
if the name specified in the
namefield of `enr` is already registered for this connection
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