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Portal SPI_cursor_open_with_args(const char *name, const char *command, intnargs, Oid *argtypes, Datum *values, const char *nulls, boolread_only, intcursorOptions)
SPI_cursor_open_with_argssets up a cursor (internally, a portal) that will execute the specified query. Most of the parameters have the same meanings as the corresponding parameters toSPI_prepare_cursorandSPI_cursor_open.
For one-time query execution, this function should be preferred overSPI_prepare_cursorfollowed bySPI_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.
name for portal, orNULLto let the system select a name
command string
number of input parameters ($1,$2, etc.)
an array containing theOIDs of the data types of the parameters
an array of actual parameter values
an array describing which parameters are null
IfnullsisNULLthenSPI_cursor_open_with_argsassumes that no parameters are null.
truefor read-only execution
integer bit mask of cursor options; zero produces default behavior
Pointer to portal containing the cursor. Note there is no error return convention; any error will be reported viaelog.
