Hello,
postgresql 8.0.1, in a plpgsql function
To update columns' values in a table (without OID), if I ran:
1. "update table1 set col1 = ..., col2 = ... ... col100 ="
or
2.
"update table1 set col1 = "
...
"update table1 set col100 = "
way 1 only has one disk I/O, right? While way 2 is more time consuming
since there is disk I/O when a update is ran.
Thanks a lot,
Ying