SPI_execute_plan (3)

Leading comments

    Title: SPI_execute_plan
   Author: The PostgreSQL Global Development Group
Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
     Date: 2017
   Manual: PostgreSQL 9.6.5 Documentation
   Source: PostgreSQL 9.6.5
 Language: English

NAME

SYNOPSIS

int SPI_execute_plan(SPIPlanPtr plan, Datum * values, const char * nulls,
                     bool read_only, long count)

DESCRIPTION

SPI_execute_plan executes a statement prepared by SPI_prepare or one of its siblings. read_only and count have the same interpretation as in SPI_execute.

ARGUMENTS

SPIPlanPtr plan

prepared statement (returned by SPI_prepare)

Datum * values

An array of actual parameter values. Must have same length as the statement's number of arguments.

const char * nulls

An array describing which parameters are null. Must have same length as the statement's number of arguments.

If nulls is NULL then SPI_execute_plan assumes that no parameters are null. Otherwise, each entry of the nulls array should be ' ' if the corresponding parameter value is non-null, or 'n' if the corresponding parameter value is null. (In the latter case, the actual value in the corresponding values entry doesn't matter.) Note that nulls is not a text string, just an array: it does not need a '\0' terminator.

bool read_only

true for read-only execution

long count

maximum number of rows to return, or 0 for no limit

RETURN VALUE

The return value is the same as for SPI_execute, with the following additional possible error (negative) results:

SPI_ERROR_ARGUMENT

if plan is NULL or invalid, or count is less than 0

SPI_ERROR_PARAM

if values is NULL and plan was prepared with some parameters

SPI_processed and SPI_tuptable are set as in SPI_execute if successful.