spi_pfree(3) centos man page | unix.com

SPI_PFREE(3)						  PostgreSQL 9.2.7 Documentation					      SPI_PFREE(3)

NAME
       SPI_pfree - free memory in the upper executor context

SYNOPSIS
       void SPI_pfree(void * pointer)

DESCRIPTION
       SPI_pfree frees memory previously allocated using SPI_palloc or SPI_repalloc.

       This function is no longer different from plain pfree. It's kept just for backward compatibility of existing code.

ARGUMENTS
       void * pointer
	   pointer to existing storage to free

PostgreSQL 9.2.7						    2014-02-17							      SPI_PFREE(3)