From issues-return-50942-archive-asf-public=cust-asf.ponee.io@drill.apache.org Fri Mar 16 16:21:05 2018 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 [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 733DE18067B for ; Fri, 16 Mar 2018 16:21:04 +0100 (CET) Received: (qmail 32558 invoked by uid 500); 16 Mar 2018 15:21:03 -0000 Mailing-List: contact issues-help@drill.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@drill.apache.org Delivered-To: mailing list issues@drill.apache.org Received: (qmail 32540 invoked by uid 99); 16 Mar 2018 15:21:03 -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; Fri, 16 Mar 2018 15:21:03 +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 1181FC00CB for ; Fri, 16 Mar 2018 15:21:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -110.311 X-Spam-Level: X-Spam-Status: No, score=-110.311 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id MDUZCD_g-qw8 for ; Fri, 16 Mar 2018 15:21:02 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 995F15F2F0 for ; Fri, 16 Mar 2018 15:21:01 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id CA1A1E0292 for ; Fri, 16 Mar 2018 15:21:00 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 2465C21286 for ; Fri, 16 Mar 2018 15:21:00 +0000 (UTC) Date: Fri, 16 Mar 2018 15:21:00 +0000 (UTC) From: "Arina Ielchiieva (JIRA)" To: issues@drill.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (DRILL-6259) Implement parquet filter push down for complex types MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Arina Ielchiieva created DRILL-6259: --------------------------------------- Summary: Implement parquet filter push down for complex types Key: DRILL-6259 URL: https://issues.apache.org/jira/browse/DRILL-6259 Project: Apache Drill Issue Type: Improvement Affects Versions: 1.13.0 Reporter: Arina Ielchiieva Assignee: Arina Ielchiieva Fix For: 1.14.0 Currently parquet filter push down is not working for complex types (includ= ing arrays). This Jira aims to implement filter push down for complex types which undern= eath type is among supported simple types for filter push down. For instanc= e, currently Drill does not support filter push down for varchars, decimals= etc. Though once Drill will start support, this support will be applied fo= r complex type automatically. Complex fields will be pushed down the same way regular fields are, except = for one case with arrays. Query with predicate {{where users.hobbies_ids[2] is null}} won't=C2=A0be a= ble to push down because we are not able to determine exact number of nulls= in arrays fields.=C2=A0 {{Consider [1, 2, 3]}} vs {{[1, 2]. If}}=C2=A0these arrays are in different= files. Statistics for the second case won't show any nulls but when queryi= ng from two files, in terms of data the third value in array is null. =C2=A0 -- This message was sent by Atlassian JIRA (v7.6.3#76005)