Return-Path: X-Original-To: apmail-hive-issues-archive@minotaur.apache.org Delivered-To: apmail-hive-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id CD70718199 for ; Thu, 30 Jul 2015 17:23:07 +0000 (UTC) Received: (qmail 22976 invoked by uid 500); 30 Jul 2015 17:23:04 -0000 Delivered-To: apmail-hive-issues-archive@hive.apache.org Received: (qmail 22951 invoked by uid 500); 30 Jul 2015 17:23:04 -0000 Mailing-List: contact issues-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list issues@hive.apache.org Received: (qmail 22941 invoked by uid 99); 30 Jul 2015 17:23:04 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Jul 2015 17:23:04 +0000 Date: Thu, 30 Jul 2015 17:23:04 +0000 (UTC) From: "Ryan Blue (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-8950) Add support in ParquetHiveSerde to create table schema from a parquet file 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/HIVE-8950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14647986#comment-14647986 ] Ryan Blue commented on HIVE-8950: --------------------------------- [~gauravkumar37], the schema is read from the file once and then converted to DDL. The file is no longer used after that, so schema evolution proceeds as it normally would for any table. > Add support in ParquetHiveSerde to create table schema from a parquet file > -------------------------------------------------------------------------- > > Key: HIVE-8950 > URL: https://issues.apache.org/jira/browse/HIVE-8950 > Project: Hive > Issue Type: Improvement > Reporter: Ashish K Singh > Assignee: Gaurav Kumar > Attachments: HIVE-8950.1.patch, HIVE-8950.2.patch, HIVE-8950.3.patch, HIVE-8950.4.patch, HIVE-8950.5.patch, HIVE-8950.6.patch, HIVE-8950.7.patch, HIVE-8950.8.patch, HIVE-8950.patch > > > PARQUET-76 and PARQUET-47 ask for creating parquet backed tables without having to specify the column names and types. As, parquet files store schema in their footer, it is possible to generate hive schema from parquet file's metadata. This will improve usability of parquet backed tables. -- This message was sent by Atlassian JIRA (v6.3.4#6332)