Why UPDATE gl SET gl.glnum = gl.glnum; cause error when UPDATE gl SET glnum = glnum; is OK ?

[David Gagnon <dgagnon@xxxxxxxxxx>]

Hi all,

I was juste wondering why the following code don't work:
UPDATE gl SET gl.glnum = gl.glnum
ERROR:  column "gl" of relation "gl" does not exist

While the following works:
UPDATE gl SET glnum = glnum;

Query returned successfully: 177 rows affected, 281 ms execution time.

the TABLE.COLUMN is not in the SQL standard ?

Thanks
/David

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
      choose an index scan if your joining column's datatypes do not
      match