PostgreSQL 9.6.9 Documentation
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# SPI_cursor_open_with_paramlist

## Name

SPI_cursor_open_with_paramlist -- set up a cursor using parameters

## Synopsis

    Portal SPI_cursor_open_with_paramlist(const char *name,
                                          SPIPlanPtr plan,
                                          ParamListInfo params,
                                          bool read_only)

## Description

`SPI_cursor_open_with_paramlist` sets up a cursor (internally, a portal) that will execute a statement prepared by `SPI_prepare`. This function is equivalent to `SPI_cursor_open` except that information about the parameter values to be passed to the query is presented differently. The `ParamListInfo` representation can be convenient for passing down values that are already available in that format. It also supports use of dynamic parameter sets via hook functions specified in `ParamListInfo`.

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

`SPIPlanPtr `plan``

  prepared statement (returned by `SPI_prepare`)

`ParamListInfo `params``

  data structure containing parameter types and values; NULL if none

`bool `read_only``

  `true` for read-only execution

## Return Value

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

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