> "Hiroshi Inoue" <Inoue@tpf.co.jp> writes:
> > If I remember correctly *move 0* means *move all* in the
> > implementation of cursor.
>
> It does (I looked at it before).
>
> > I don't know if it's the spec or not.
>
> As best I can tell from SQL92, FETCH RELATIVE 0 implies no movement
> (refetch same row). MOVE is not in the spec but it seems it ought
> to behave like that too.
>
> The fix seemed too extensive to be making in the last days of 7.0
> beta, so I let it go at the time --- but someone should fix this.
>
I just sent off an email stating that MOVE 0 goes to the end, and that
the FETCH manual page says:
SQL92 allows one to repetatively retrieve the cur-
sor at its "current position" using the syntax
FETCH RELATIVE 0 FROM cursor
Postgres does not currently support this notion; in
fact the value zero is reserved to indicate that
all rows should be retrieved and is equivalent to
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
specifying the ALL keyword. If the RELATIVE key-
word has been used, the Postgres assumes that the
user intended SQL92 behavior and returns this error
message.
So it seems we are OK.
--
Bruce Momjian | http://www.op.net/~candle
pgman@candle.pha.pa.us | (610) 853-3000
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