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Thu, 21 Apr 2016 09:27:39 +0000 Received: from AT5PR84MB0052.NAMPRD84.PROD.OUTLOOK.COM ([10.162.137.15]) by AT5PR84MB0052.NAMPRD84.PROD.OUTLOOK.COM ([10.162.137.15]) with mapi id 15.01.0466.023; Thu, 21 Apr 2016 09:27:39 +0000 From: "Velasco, Luis" To: "dev@hive.apache.org" Subject: Library Cache to store Task Tree Thread-Topic: Library Cache to store Task Tree Thread-Index: AdGbr4g7+1rRRR2URGSpW+6Mtrq3Cw== Date: Thu, 21 Apr 2016 09:27:39 +0000 Message-ID: Accept-Language: es-ES, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: hive.apache.org; dkim=none (message not signed) header.d=none;hive.apache.org; dmarc=none action=none header.from=hpe.com; x-originating-ip: [188.77.241.162] x-ms-office365-filtering-correlation-id: 9032da6e-45e7-40f5-2f0e-08d369c72f04 x-microsoft-exchange-diagnostics: 1;AT5PR84MB0052;5:FY5157UBCtZf1FgpvSw3saMtIe99RumDJsBwPZSgDAMv07NPYhZu9Ev9jai5fdXrDb+EMJppIS9i6W6lB2j8aNpjQiAMfRUCStIBh6Bd9t77U64mkG3m7YanJMG65nf5l6bZWDtYKS/5lYjBJyik5uW6vJxsYwTIkKZ9/VLLIvDsaSRKxN9DagbgBp+droQJ;24:nGEBqMnNJjzkcwp6xRNMbcW+Fnhu9m+aeyU1AYXdqLuLbDv+EwjNYdRbRrMfJjuKhVdgV+ktP3KnIQKhRVmmQJKJw+TSESeu/etR3+daOFQ=;7:MMHobb9VPfhSwPnaf1f+VFEBI0bIXX+fvY0AfNjeMP1I8KI2j4x7s2rmPt+NDKoVbh9wDjb3Uz23O3w6hToigSrKrIVsVXz7nTKJ7TIlGDNkEZf1Fo33+U8EDSEzqQDzBH3pYmq4lFmbXdqJDB9m0HTFhU/jQ+h1PgEUXPUDNNnkA/NAYOHCEjVrdMxbljjUTNgg/jdmMx3W+5hAkfs4TAApc1Apz4CS7X0twoU6xLk= x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:AT5PR84MB0052; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(9101521026)(601004)(2401047)(8121501046)(5005006)(10201501046)(3002001)(6055026);SRVR:AT5PR84MB0052;BCL:0;PCL:0;RULEID:;SRVR:AT5PR84MB0052; x-forefront-prvs: 091949432C x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(99286002)(19300405004)(586003)(50986999)(9686002)(81166005)(229853001)(11100500001)(54356999)(5003600100002)(107886002)(1096002)(110136002)(33656002)(19625215002)(16236675004)(450100001)(558084003)(1220700001)(86362001)(790700001)(6116002)(102836003)(3846002)(122556002)(19580395003)(5002640100001)(189998001)(3660700001)(2501003)(2906002)(5008740100001)(87936001)(5004730100002)(92566002)(77096005)(15975445007)(2351001)(66066001)(3280700002)(2900100001)(10400500002);DIR:OUT;SFP:1102;SCL:1;SRVR:AT5PR84MB0052;H:AT5PR84MB0052.NAMPRD84.PROD.OUTLOOK.COM;FPR:;SPF:None;MLV:sfv;LANG:en; spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_AT5PR84MB005245D76AF753AF4FF0A2B7846E0AT5PR84MB0052NAMP_" MIME-Version: 1.0 X-OriginatorOrg: hpe.com X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Apr 2016 09:27:39.6802 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 105b2061-b669-4b31-92ac-24d304d195dc X-MS-Exchange-Transport-CrossTenantHeadersStamped: AT5PR84MB0052 --_000_AT5PR84MB005245D76AF753AF4FF0A2B7846E0AT5PR84MB0052NAMP_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, Now that LLAP is a reality and there are some queries now taking more time = in preparation than in execution I'm t wondering if there are any plans to = implement an Oracle like library cache to speed up the query parsing and pl= anning process. Luis --_000_AT5PR84MB005245D76AF753AF4FF0A2B7846E0AT5PR84MB0052NAMP_--