I am not sure this is a bug, but I was surprised by the following behaviour
in HEAD and 8.4.4 (instances built today, 2010.05.14):
Invalid (?) values like 123_456 are split before the underscore and interpreted as
123 as "456":
$ psql -p 6591 -d testdb -c "select 123_456, current_setting('server_version')"_456 | current_setting
------+----------------- 123 | 9.0beta1
(1 row)
$ psql -p 6584 -d testdb -c "select 123_456, current_setting('server_version')"_456 | current_setting
------+----------------- 123 | 8.4.4
(1 row)
Older versions (8.3 thru 7.4) all give an error:
$ psql -p 6583 -d testdb -c "select 123_456, current_setting('server_version')"
ERROR: syntax error at or near "_456"
LINE 1: select 123_456, current_setting('server_version') ^
The error given by the older servers seems justified. I assume
this is a bug and not a deliberate change?
thanks,
Erik Rijkers