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ASF GitHub Bot commented on TRAFODION-1473: ------------------------------------------- Github user sandhyasun commented on a diff in the pull request: https://github.com/apache/incubator-trafodion/pull/248#discussion_r48979445 --- Diff: core/sql/clitest/blobtest.cpp --- @@ -0,0 +1,255 @@ +/********************************************************************** +// @@@ START COPYRIGHT @@@ +// +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. +// +// @@@ END COPYRIGHT @@@ +**********************************************************************/ +/* -*-C++-*- +**************************************************************************** +* +* File: Helper functions for use by bin/clitest.cpp +* Description: Test driver useing exe util cli interface +* +* +* +* +**************************************************************************** +*/ +#include "blobtest.h" + +Int32 extractLengthOfLobColumn(CliGlobals *cliglob, char *lobHandle, + Int64 &lengthOfLob, + char *lobColumnName, char *tableName) +{ + Int32 retcode = 0; + char * query = new char[4096]; + ExeCliInterface cliInterface((cliglob->currContext())->exHeap(), (Int32)SQLCHARSETCODE_UTF8, cliglob->currContext(),NULL); + //Use lob handle to retrieve the lob length. + char lobLengthResult[200]; + str_cpy_all(lobLengthResult," ",200); + Int32 lobLengthResultLen = 0; + str_sprintf(query,"extract loblength (lob '%s') LOCATION %Ld ",lobHandle, &lengthOfLob); + retcode = cliInterface.executeImmediate(query,lobLengthResult,&lobLengthResultLen,FALSE); + + delete query; + return retcode; + +} + +Int32 extractLobHandle(CliGlobals *cliglob, char *& lobHandle, + char *lobColumnName, char *tableName) +{ + Int32 retcode = 0; + ExeCliInterface cliInterface((cliglob->currContext())->exHeap(), (Int32)SQLCHARSETCODE_UTF8, cliglob->currContext(),NULL); + char * query = new char[4096]; + Int32 lobHandleLen = 0; + str_sprintf(query,"select %s from %s",lobColumnName,tableName); + + retcode = cliInterface.executeImmediate(query,lobHandle,&lobHandleLen,FALSE); + + if (retcode) + return retcode; --- End diff -- For the syntax in the previous comment(could not add Line Note there) , it was because the comments use markup and all test within <> got chopped off. The syntax should look better now, I edited it. Fixed memory leak . > Adding external buffer and file input and extract support for LOB datatypes > ----------------------------------------------------------------------------- > > Key: TRAFODION-1473 > URL: https://issues.apache.org/jira/browse/TRAFODION-1473 > Project: Apache Trafodion > Issue Type: Task > Components: sql-cmp, sql-exe > Environment: Trafodion > Reporter: Sandhya Sundaresan > Assignee: Sandhya Sundaresan > Labels: features > Fix For: 1.2-incubating > > > LOB datatype is disabled in Trafodion until the following support is fully > in. > Here are the list of tasks and items to support : > 1. Support input of linux files (on platform) into LOB columns. > 2. Support extract of LOB data into linux files on platform. > 3. Support input of hdfs files into LOB columns. > 4. Support extract of LOB data into hdfs files. > 5. Support chunking to input a very large external file into LOB columns. > 6. Use CQD concept to limit LOB max size and limit chunk size for extract > /input. > TBD > 7. Support for input/extract of external files off platform into LOB columns. > 8. Support in connectivity and driver for real LOB data type. -- This message was sent by Atlassian JIRA (v6.3.4#6332)