SPI_execute_plan — execute a statement prepared by SPI_prepare
int SPI_execute_plan(SPIPlanPtrplan, Datum *values, const char *nulls, boolread_only, longcount)
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.
SPIPlanPtr planprepared statement (returned by SPI_prepare)
Datum * valuesAn array of actual parameter values. Must have same length as the statement's number of arguments.
const char * nullsAn 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_onlytrue for read-only execution
long countmaximum number of rows to return, or 0 for no limit
The return value is the same as for SPI_execute, with the following additional possible error (negative) results:
SPI_ERROR_ARGUMENTif plan is NULL or invalid, or count is less than 0
SPI_ERROR_PARAMif values is NULL and plan was prepared with some parameters
SPI_processed and SPI_tuptable are set as in SPI_execute if successful.
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