Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 960EB2E0051 for ; Tue, 11 Mar 2008 09:28:47 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 76209-01 for ; Tue, 11 Mar 2008 09:28:34 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.5 Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.181]) by postgresql.org (Postfix) with ESMTP id 6620F2E003D for ; Tue, 11 Mar 2008 09:28:33 -0300 (ADT) Received: by wa-out-1112.google.com with SMTP id m38so2866804waf.5 for ; Tue, 11 Mar 2008 05:28:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; bh=cFDNHmf9qdW39aNOvLDUYA8PKwk6669qkPrcKzevTEY=; b=YLYnmdLREo2bU5Ns5zV+/+jhGCBxHuOB+LGgEpqL1Gnvjvn2thMTJFXln74HHjmE9/J6a1nJh2PuySLc6lO49k78R3oeR7MOaMzo8SNR+lkIHBL4h90sZyN2e+1QC4bYDa9rlIhhtqHzcMbSOda+x2qoSqLifYku4hDu7YOLXyM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=RVr1FolPwAZXUmjIgqBVqyZ+MOlGwIZFvLEKmE20vbzu+YMlu7T/yobWQIwz4vFFOWHhRo3l+dRXViZAq0yKpp3oDS6TqOxKo8VT8Zn0RVnGK8XDoQx9CJhQ9V8vKnRdUFjXeq4EbuWO4B1bndmM45cCRxhHkfM+0v913ysiJEM= Received: by 10.115.79.1 with SMTP id g1mr5024349wal.2.1205238510728; Tue, 11 Mar 2008 05:28:30 -0700 (PDT) Received: by 10.114.234.6 with HTTP; Tue, 11 Mar 2008 05:28:30 -0700 (PDT) Message-ID: Date: Tue, 11 Mar 2008 17:58:30 +0530 From: "petchimuthu lingam" To: pgsql-performance@postgresql.org Subject: how many index can have???? MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_2849_19398995.1205238510721" X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.179 tagged_above=0 required=5 tests=AWL=0.178, HTML_MESSAGE=0.001 X-Spam-Level: X-Archive-Number: 200803/226 X-Sequence-Number: 29180 ------=_Part_2849_19398995.1205238510721 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I have one table with 30 fields, i have more then 60 million records, if i use more no of indexes will it affect the insertion performance? and select performance? Shall i have more then one partial index for same field, ???? -- With Best Regards, Petchimuthulingam S ------=_Part_2849_19398995.1205238510721 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I have one table with 30 fields, i have more then 60 million records, if i use more no of indexes will it affect the insertion
performance? and select performance?

Shall i have more then one partial index for same field, ????

--
With Best Regards,
Petchimuthulingam S ------=_Part_2849_19398995.1205238510721--