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SPI_register_relation
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SPI_register_relation

SPI_register_relation — make an ephemeral named relation available by name in SPI queries

Synopsis

int SPI_register_relation(EphemeralNamedRelation enr)

Description

SPI_register_relation makes an ephemeral named relation, with associated information, available to queries planned and executed through the current SPI connection.

Arguments

+EphemeralNamedRelation +`+enr+`: the ephemeral named relation registry entry

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 its name field is NULL
SPI_ERROR_UNCONNECTED: if called from an unconnected C function
SPI_ERROR_REL_DUPLICATE: if the name specified in the name field of `enr` is already registered for this connection

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