13th February 2020: PostgreSQL 12.2, 11.7, 10.12, 9.6.17, 9.5.21, and 9.4.26 Released!
Supported Versions: Current (12) / 11 / 10 / 9.6 / 9.5
Development Versions: devel
Unsupported versions: 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3
PostgreSQL 9.5.21 Documentation
Prev Up Next

SPI_prepare_cursor

Name

SPI_prepare_cursor -- prepare a statement, without executing it yet

Synopsis

SPIPlanPtr SPI_prepare_cursor(const char * command, int nargs,
                              Oid * argtypes, int cursorOptions)

Description

SPI_prepare_cursor is identical to SPI_prepare, except that it also allows specification of the planner's "cursor options" parameter. This is a bit mask having the values shown in nodes/parsenodes.h for the options field of DeclareCursorStmt. SPI_prepare always takes the cursor options as zero.

Arguments

const char * command

command string

int nargs

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

Oid * argtypes

pointer to an array containing the OIDs of the data types of the parameters

int cursorOptions

integer bit mask of cursor options; zero produces default behavior

Return Value

SPI_prepare_cursor has the same return conventions as SPI_prepare.

Notes

Useful bits to set in cursorOptions include CURSOR_OPT_SCROLL, CURSOR_OPT_NO_SCROLL, CURSOR_OPT_FAST_PLAN, CURSOR_OPT_GENERIC_PLAN, and CURSOR_OPT_CUSTOM_PLAN. Note in particular that CURSOR_OPT_HOLD is ignored.

Prev Home Next
SPI_prepare Up SPI_prepare_params

Submit correction

If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.