SYNOPSIS
Oid SPI_gettypeid(TupleDesc rowdesc, int colnumber)
DESCRIPTION
SPI_gettypeid returns the OID of the data type of the specified column.
ARGUMENTS
TupleDesc rowdesc
- input row description
int colnumber
- column number (count starts at 1)
RETURN VALUE
The OID of the data type of the specified column or InvalidOid on error. On error, SPI_result is set to SPI_ERROR_NOATTRIBUTE.