spi_cursor_open_with_args(3) centos man page | unix.com

SPI_CURSOR_OPEN_WITH_ARGS(3)				  PostgreSQL 9.2.7 Documentation			      SPI_CURSOR_OPEN_WITH_ARGS(3)

NAME
       SPI_cursor_open_with_args - set up a cursor using a query and parameters

SYNOPSIS
       Portal SPI_cursor_open_with_args(const char *name,
					const char *command,
					int nargs, Oid *argtypes,
					Datum *values, const char *nulls,
					bool read_only, int cursorOptions)

DESCRIPTION
       SPI_cursor_open_with_args sets up a cursor (internally, a portal) that will execute the specified query. Most of the parameters have the
       same meanings as the corresponding parameters to SPI_prepare_cursor and SPI_cursor_open.

       For one-time query execution, this function should be preferred over SPI_prepare_cursor followed by SPI_cursor_open. If the same command is
       to be executed with many different parameters, either method might be faster, depending on the cost of re-planning versus the benefit of
       custom plans.

       The passed-in parameter data will be copied into the cursor's portal, so it can be freed while the cursor still exists.

ARGUMENTS
       const char * name
	   name for portal, or NULL to let the system select a name

       const char * command
	   command string

       int nargs
	   number of input parameters ($1, $2, etc.)

       Oid * argtypes
	   an array containing the OIDs of the data types of the parameters

       Datum * values
	   an array of actual parameter values

       const char * nulls
	   an array describing which parameters are null

	   If nulls is NULL then SPI_cursor_open_with_args assumes that no parameters are null.

       bool read_only
	   true for read-only execution

       int cursorOptions
	   integer bit mask of cursor options; zero produces default behavior

RETURN VALUE
       Pointer to portal containing the cursor. Note there is no error return convention; any error will be reported via elog.

PostgreSQL 9.2.7						    2014-02-17					      SPI_CURSOR_OPEN_WITH_ARGS(3)