From drill-dev-return-875-apmail-incubator-drill-dev-archive=incubator.apache.org@incubator.apache.org Fri Jan 11 00:50:12 2013 Return-Path: X-Original-To: apmail-incubator-drill-dev-archive@minotaur.apache.org Delivered-To: apmail-incubator-drill-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id DD2D1E53A for ; Fri, 11 Jan 2013 00:50:12 +0000 (UTC) Received: (qmail 51490 invoked by uid 500); 11 Jan 2013 00:50:12 -0000 Delivered-To: apmail-incubator-drill-dev-archive@incubator.apache.org Received: (qmail 51461 invoked by uid 500); 11 Jan 2013 00:50:12 -0000 Mailing-List: contact drill-dev-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: drill-dev@incubator.apache.org Delivered-To: mailing list drill-dev@incubator.apache.org Received: (qmail 51452 invoked by uid 99); 11 Jan 2013 00:50:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Jan 2013 00:50:12 +0000 Date: Fri, 11 Jan 2013 00:50:12 +0000 (UTC) From: "Jacques Nadeau (JIRA)" To: drill-dev@incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (DRILL-19) Build a JSON scanner that does schema discovery MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/DRILL-19?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550632#comment-13550632 ] Jacques Nadeau commented on DRILL-19: ------------------------------------- Nulls -> I'll skip nulls for now then Array type -> I see, currently all arrays have schema in place assuming its heteregenous. I will add a field so it represents all value types in the array where they have all the same types. Map -> Sounds good. Map & Parent -> The top level object currently is a map. Currently schema fields have reference to its children (if present) instead of the other way around. I can also have a reference to its parent if that helps traversing. Key -> Not sure what you mean by this, currently the "key" is the fullFieldName String, as you can see from my print out. Maybe you can give me an example? > Build a JSON scanner that does schema discovery > ----------------------------------------------- > > Key: DRILL-19 > URL: https://issues.apache.org/jira/browse/DRILL-19 > Project: Apache Drill > Issue Type: New Feature > Reporter: Jacques Nadeau > Assignee: Timothy Chen > -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira