Name
SPI_getvalue -- Returns the string value of the specified attribute
Synopsis
SPI_getvalue(tuple, tupdesc, fnumber)
Inputs
- HeapTuple tuple
Input tuple to be examined
- TupleDesc tupdesc
Input tuple description
- int fnumber
Attribute number
Outputs
- char *
Attribute value or NULL if
| attribute is NULL |
| fnumber is out of range
(SPI_result set to
SPI_ERROR_NOATTRIBUTE) |
| no output function available
(SPI_result set to
SPI_ERROR_NOOUTFUNC) |
Description
SPI_getvalue
returns an external (string) representation of the value of the specified attribute.
Usage
Attribute numbers are 1 based.
Algorithm
Allocates memory as required by the value.