underscore split to alias
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From: Tom Lane on 14 May 2010 19:08 "Erik Rijkers" <er(a)xs4all.nl> writes: > 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": All versions of postgres will parse 123_456 as an integer (123) immediately followed by an identifier (_456). In the particular context that this is all of a top-level SELECT item, the SQL spec requires that we parse this as an integer and a column alias (with an implied AS). We failed to do that before 8.4, but now honor the spec requirement that AS can be omitted. Personally I think that's one of the stupider, more error-prone aspects of the spec's syntax, but nonetheless it's required by spec .... regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers |