Hello, I'm searching for two facts: How much space takes a varchar column if there is no value in it (NULL)? How much space needs a index of an integer column? Hope I post to the right list and hope anybody can help me. Thank you Greetings Achim
---------------------------(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