SPI_finish3
Disconnect a c function from the spi manager
Usage
int SPI_finish(void)
Overview
SPI_finish closes an existing connection to the SPI manager. You must call this function after completing the SPI operations needed during your C function's current invocation. You do not need to worry about making this happen, however, if you abort the transaction via elog(ERROR). In that case SPI will clean itself up automatically.
Return value
SPI_OK_FINISH
if properly disconnected
SPI_ERROR_UNCONNECTED
if called from an unconnected C function