sort text field numerically - Mailing list pgsql-sql

From Frank Morton
Subject sort text field numerically
Date
Msg-id 020101c1fb42$3665f770$8455e5ce@edison
Whole thread Raw
In response to order by  (Mathieu Arnold <mat@mat.cc>)
Responses Re: sort text field numerically  ("Joel Burton" <joel@joelburton.com>)
List pgsql-sql
I have a table with a column called "weight" that
is a text field, but in this case, contains float values,
such as ".8" or "0.25". Might also be null.

How can I sort them in numeric order instead of
textual order? Thanks.




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