SPI_PUSH(3) PostgreSQL 9.2.7 Documentation SPI_PUSH(3)
NAME
SPI_push - push SPI stack to allow recursive SPI usage
SYNOPSIS
void SPI_push(void)
DESCRIPTION
SPI_push should be called before executing another procedure that might itself wish to use SPI. After SPI_push, SPI is no longer in a
"connected" state, and SPI function calls will be rejected unless a fresh SPI_connect is done. This ensures a clean separation between your
procedure's SPI state and that of another procedure you call. After the other procedure returns, call SPI_pop to restore access to your own
SPI state.
Note that SPI_execute and related functions automatically do the equivalent of SPI_push before passing control back to the SQL execution
engine, so it is not necessary for you to worry about this when using those functions. Only when you are directly calling arbitrary code
that might contain SPI_connect calls do you need to issue SPI_push and SPI_pop.
PostgreSQL 9.2.7 2014-02-17 SPI_PUSH(3)
