SPI_fname
Name
SPI_fname -- determine the column name for the specified column number
Synopsis
char * SPI_fname(TupleDesc rowdesc, int colnumber)
描述
SPI_fname returns a copy of the column name of the
specified column. (You can use pfree to
release the copy of the name when you don't need it anymore.)
参数
- TupleDesc rowdesc
input row description
- int colnumber
column number (count starts at 1)
返回值
The column name; NULL if
colnumber is out of range.
SPI_result set to
SPI_ERROR_NOATTRIBUTE on error.