---
title: "SPI_getbinval"
id: spi-spi-getbinval
pg_version: "20devel"
---
# SPI_getbinval — return the binary value of the specified column
## Synopsis
```
Datum SPI_getbinval(HeapTuple row, TupleDesc rowdesc, int colnumber,
bool * isnull)
```
## Description
`SPI_getbinval` returns the value of the specified column in the internal form (as type `Datum`).
This function does not allocate new space for the datum. In the case of a pass-by-reference data type, the return value will be a pointer into the passed row.
## Arguments
**`HeapTuple row`**
input row to be examined **`TupleDesc rowdesc`**
input row description **`int colnumber`**
column number (count starts at 1) **`bool * isnull`**
flag for a null value in the column
## Return Value
The binary value of the column is returned. The variable pointed to by `isnull` is set to true if the column is null, else to false.
`SPI_result` is set to `SPI_ERROR_NOATTRIBUTE` on error.