X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.2]) by svr1.postgresql.org (Postfix) with ESMTP id 80499D1B4F4 for ; Tue, 11 Nov 2003 17:34:07 +0000 (GMT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (neptune.hub.org [200.46.204.2]) (amavisd-new, port 10024) with ESMTP id 88821-04 for ; Tue, 11 Nov 2003 13:33:37 -0400 (AST) Received: from guinness.cs.stevens-tech.edu (guinness.cs.stevens-tech.edu [155.246.89.8]) by svr1.postgresql.org (Postfix) with ESMTP id 8AD10D1B4F6 for ; Tue, 11 Nov 2003 13:33:36 -0400 (AST) Received: by guinness.cs.stevens-tech.edu (Postfix, from userid 4405) id 0258E14386C; Tue, 11 Nov 2003 12:33:20 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by guinness.cs.stevens-tech.edu (Postfix) with ESMTP id E9B11C2444 for ; Tue, 11 Nov 2003 12:33:20 -0500 (EST) Date: Tue, 11 Nov 2003 12:33:20 -0500 From: Yasir Malik To: pgsql-sql@postgresql.org Subject: Bit strings Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by amavisd-new at postgresql.org X-Archive-Number: 200311/123 X-Sequence-Number: 15938 Hello, For a data warehousing project I will have to implement bitmaps. I would perfer to stay away from C, Java, etc., and would like to use PostgreSQL instead. I have a question about bit string type: does the time it takes to do the & or | of two bit strings run in constant time (as it does in C)? Thanks, Yasir