From: | Michael Glaesemann <grzm(at)seespotcode(dot)net> |
---|---|
To: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
Subject: | Array shift equivalent? |
Date: | 2006-12-06 14:58:06 |
Message-ID: | 8921B0C3-B328-44B3-8DFF-22B9AB659E58@seespotcode.net |
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Lists: | pgsql-general |
I'm trying to shift the first element off of an array, but I'm just
not getting it. I'm not necessarily interested in saving the rest of
the array. i just want to get the first element, which in this case
is another array.
# select * from arrays;
this_array_id | this_array
---------------+---------------------------------------------------
1 | {{foo,bar,baz},{afoo,abar,abaz},{bfoo,bbar,bbaz}}
(1 row)
I'd like to get {foo,bar,baz}.
My first try:
# select this_array[1] from arrays;
this_array
------------
(1 row)
# select this_array[1][1:3] from arrays;
this_array
-----------------
{{foo,bar,baz}}
(1 row)
This last one is close, but it's nested:
# select array_dims(this_array[1][1:3]) from arrays;
array_dims
------------
[1:1][1:3]
(1 row)
I'd like to get just a [1:3] array.
What am I missing? Thanks for any assistance.
Michael Glaesemann
grzm seespotcode net
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