From user-return-27143-archive-asf-public=cust-asf.ponee.io@flink.apache.org Tue Apr 16 08:07:49 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 7D4D9180630 for ; Tue, 16 Apr 2019 10:07:49 +0200 (CEST) Received: (qmail 45818 invoked by uid 500); 16 Apr 2019 08:07:47 -0000 Mailing-List: contact user-help@flink.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list user@flink.apache.org Received: (qmail 45795 invoked by uid 99); 16 Apr 2019 08:07:47 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 16 Apr 2019 08:07:46 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 06011C2486 for ; Tue, 16 Apr 2019 08:07:46 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 1.799 X-Spam-Level: * X-Spam-Status: No, score=1.799 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd4-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id ft6XmBeudOgl for ; Tue, 16 Apr 2019 08:07:44 +0000 (UTC) Received: from mail-lf1-f52.google.com (mail-lf1-f52.google.com [209.85.167.52]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTPS id A4CEE60CEB for ; Tue, 16 Apr 2019 08:07:43 +0000 (UTC) Received: by mail-lf1-f52.google.com with SMTP id j20so2391582lfh.2 for ; Tue, 16 Apr 2019 01:07:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=o5SjeRp+7ocpDrUTTkBl5aoKMwUaLfHgXsklEfd3ggM=; b=PNBmPE0UoPrUi9kUuATmP8oKsdSkxn2ygSTzcLO2o1+mAumL71hrpWq76jxwIDnzq5 SwRJU0dVI/0hVdk0OkB7Zm1znOXXRit/hX2bNxQ/OuD7l15qrXtLy6TDVv1Dj5mfPnTL /u6htbhlIwwmiHqBDFQGf6x+ZlMqxcaCM4sQ/J6C+f+b7HQLvS3NC5ASTcIuLEBvskFS icPxn/efuZsQwa6DSWpRhUhb3LX9YcDAYYooiPCixPBqgcVfEKTjy6MnHQzel6YlsAEw tqjalwLlD5gZK3fTXF5vtpUk+FRJBT0/Js8qMHQzXY9993CbFLmTQLtURIVZZLt8GqLJ d7YQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=o5SjeRp+7ocpDrUTTkBl5aoKMwUaLfHgXsklEfd3ggM=; b=kGdhMURPfA+XFLv3hI+LUe5RORca1Ari/UrDw8bEOP2n1E49brm0AAnpi18OiT2z/f OXjH1CgSmhTbuGhL4nrpd4Mtx5w2EFcWHgk0UZ2DI8Szhv1TXiJ0EKWkn8yqbb/Xmuqk YvWBykUDRDyPRglm5lh0hUr/BcKjriNYtWeF7ctsRYHzXFy77en3rlDEfGGr9i7+jMAH ox3we9D7S6holS44Q/6hgmCdpG+JSlyv2VtDXFwAk1pu09T58K1GaCGZ2NE/iW29bPnN 45EcPboH0nIguL2zyO4zPC3v0Iib7pEXj4ANh6xJiB59EfAhvyJB2gg9DV8X5ozQ56Pm HJ+w== X-Gm-Message-State: APjAAAU3lHiDt9OxsRhFF90HByfAuzZdAmjWYIpNX3KGTO+l99HKpQYF fuyKCw2DadizfD7XmG/Kx7Egn0Y1VX9NSRYUBsCX30IqtWY= X-Google-Smtp-Source: APXvYqzh20aE2RR1KCOonpOg09C+Ot1gGRU/upGOd5lZsIcqn3VEvn5U8Zor3IwsJDZwSSkTZg22nJZzcQJfhDjuSV0= X-Received: by 2002:ac2:5396:: with SMTP id g22mr40949835lfh.120.1555402062254; Tue, 16 Apr 2019 01:07:42 -0700 (PDT) MIME-Version: 1.0 From: Lifei Chen Date: Tue, 16 Apr 2019 16:07:31 +0800 Message-ID: Subject: How to calculate moving average result using flink sql ? To: user Content-Type: multipart/alternative; boundary="00000000000067555e0586a1434d" --00000000000067555e0586a1434d Content-Type: text/plain; charset="UTF-8" Hi, all: I have a `Order` table as follow: rowtime item price ======= ======== ====== 09:00 item1 10 09:01 item2 15 09:03 item1 20 I want to calculate the moving average price in past 5 minutes, and emit the result for every record. how to do this using flink sql? Regards Lifei --00000000000067555e0586a1434d Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi, all:

I have a= `Order` table as follow:

rowtime=C2=A0 item=C2=A0 = =C2=A0 =C2=A0price
=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D
09:00=C2=A0 =C2=A0item1=C2=A0 =C2=A0 =C2=A0 1= 0
09:01=C2=A0 =C2=A0item2=C2=A0 =C2=A0 =C2=A0 15=C2=A0
09:03=C2=A0 =C2=A0item1=C2=A0 =C2=A0 =C2=A0 =C2=A020


I wan= t to calculate the moving average price in past 5 minutes, and emit the res= ult for every record.
how to do this using flink sql?=C2=A0


R= egards
Lifei
--00000000000067555e0586a1434d--