Updating non atomic values

Bob Kruger <bkruger@mindspring.com> writes:

Is there a way to update non atomic values in Postgres?
Example:
update t3 set t3.fld[1] = 0 where t3.fld[1] = 5 ;
ERROR: parser: parse error at or near "="

Bob, the correct syntax is
update t3 set fld[1] = 0 where t3.fld[1] = 5 ;

UPDATE doesn't allow explicit specification of the table containing
a field to be updated; you have to write just the field name before the
"=". The parser's error message about that could stand improvement...

There are a whole bunch of bugs associated with arrays :-(, but this
behavior isn't one of them. I hope to get some time to clean up the
array code for 6.6 or 6.7.

regards, tom lane