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1ebbfc150a
includes two changes in the JDBC driver: 1) When connected to a backend >= 7.2: use obj_description() and col_description() instead of direct access to pg_description. 2) In DatabaseMetaData.getTables()/getColumns()/getProcedures(): when there is no comment on the object, return null in the REMARKS column of the ResultSet, instead of the default string "no remarks". Change 2 first appeared as a side-effect of change 1, but it is actually more compliant with the JDBC spec: "String object containing an explanatory comment on the table/column/procedure, which may be null". The default string "no remarks" was strictly speaking incorrect, as it could not be distinguished from a real user comment "no remarks". So I removed the default string completely. Change 2 might break existing code that doesn't follow the JDBC spec and isn't prepared to handle a null in the REMARKS column of getTables()/getColumns()/getProcedures. Patch tested with jdbc2 against both a 7.1 and a CVS tip backend. I did not have a jdbc1 environment to build and test with, but since the touched code is identical in jdbc1 and jdbc2 I don't foresee any problems. Regards, Ren? Pijlman |
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PostgreSQL Data Base Management System (formerly known as Postgres, then as Postgres95). This directory contains the development version of 7.2 of the PostgreSQL database server. The server is not 100% ANSI SQL compliant, but it gets closer with every release. After you unzip and untar the distribution file, look at file INSTALL for the installation notes and file HISTORY for the changes. The latest version of this software may be obtained at ftp://ftp.postgresql.org/pub/. For more information look at our WWW home page located at http://www.postgreSQL.org/. PostgreSQL is not public domain software. It is copyrighted by the University of California but may be used according to the licensing terms of the the copyright below: ------------------------------------------------------------------------ POSTGRES95 Data Base Management System (formerly known as Postgres, then as Postgres95). Copyright (c) 1994-7 Regents of the University of California Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies. IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.