Merge branch 'pdo'

Conflicts:
	CHANGELOG

1 files changed, 0 insertions, 948 deletions

diff --git a/program/lib/MDB2/Driver/Manager/pgsql.php b/program/lib/MDB2/Driver/Manager/pgsql.php
deleted file mode 100644
index 7d356277b..000000000
--- a/program/lib/MDB2/Driver/Manager/pgsql.php
+++ /dev/null
@@ -1,948 +0,0 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Paul Cooper <pgc@ucecom.com>                                 |
-// +----------------------------------------------------------------------+
-//
-// $Id: pgsql.php 295587 2010-02-28 17:16:38Z quipo $
-
-require_once 'MDB2/Driver/Manager/Common.php';
-
-/**
- * MDB2 MySQL driver for the management modules
- *
- * @package MDB2
- * @category Database
- * @author  Paul Cooper <pgc@ucecom.com>
- */
-class MDB2_Driver_Manager_pgsql extends MDB2_Driver_Manager_Common
-{
-    // {{{ createDatabase()
-
-    /**
-     * create a new database
-     *
-     * @param string $name    name of the database that should be created
-     * @param array  $options array with charset info
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createDatabase($name, $options = array())
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $name  = $db->quoteIdentifier($name, true);
-        $query = 'CREATE DATABASE ' . $name;
-        if (!empty($options['charset'])) {
-            $query .= ' WITH ENCODING ' . $db->quote($options['charset'], 'text');
-        }
-        return $db->standaloneQuery($query, null, true);
-    }
-
-    // }}}
-    // {{{ alterDatabase()
-
-    /**
-     * alter an existing database
-     *
-     * @param string $name    name of the database that is intended to be changed
-     * @param array  $options array with name, owner info
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function alterDatabase($name, $options = array())
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'ALTER DATABASE '. $db->quoteIdentifier($name, true);
-        if (!empty($options['name'])) {
-            $query .= ' RENAME TO ' . $options['name'];
-        }
-        if (!empty($options['owner'])) {
-            $query .= ' OWNER TO ' . $options['owner'];
-        }
-        return $db->standaloneQuery($query, null, true);
-    }
-
-    // }}}
-    // {{{ dropDatabase()
-
-    /**
-     * drop an existing database
-     *
-     * @param string $name name of the database that should be dropped
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropDatabase($name)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $name = $db->quoteIdentifier($name, true);
-        $query = "DROP DATABASE $name";
-        return $db->standaloneQuery($query, null, true);
-    }
-
-    // }}}
-    // {{{ _getAdvancedFKOptions()
-
-    /**
-     * Return the FOREIGN KEY query section dealing with non-standard options
-     * as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
-     *
-     * @param array $definition
-     * @return string
-     * @access protected
-     */
-    function _getAdvancedFKOptions($definition)
-    {
-        $query = '';
-        if (!empty($definition['match'])) {
-            $query .= ' MATCH '.$definition['match'];
-        }
-        if (!empty($definition['onupdate'])) {
-            $query .= ' ON UPDATE '.$definition['onupdate'];
-        }
-        if (!empty($definition['ondelete'])) {
-            $query .= ' ON DELETE '.$definition['ondelete'];
-        }
-        if (!empty($definition['deferrable'])) {
-            $query .= ' DEFERRABLE';
-        } else {
-            $query .= ' NOT DEFERRABLE';
-        }
-        if (!empty($definition['initiallydeferred'])) {
-            $query .= ' INITIALLY DEFERRED';
-        } else {
-            $query .= ' INITIALLY IMMEDIATE';
-        }
-        return $query;
-    }
-
-    // }}}
-    // {{{ truncateTable()
-
-    /**
-     * Truncate an existing table (if the TRUNCATE TABLE syntax is not supported,
-     * it falls back to a DELETE FROM TABLE query)
-     *
-     * @param string $name name of the table that should be truncated
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function truncateTable($name)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $name = $db->quoteIdentifier($name, true);
-        return $db->exec("TRUNCATE TABLE $name");
-    }
-
-    // }}}
-    // {{{ vacuum()
-
-    /**
-     * Optimize (vacuum) all the tables in the db (or only the specified table)
-     * and optionally run ANALYZE.
-     *
-     * @param string $table table name (all the tables if empty)
-     * @param array  $options an array with driver-specific options:
-     *               - timeout [int] (in seconds) [mssql-only]
-     *               - analyze [boolean] [pgsql and mysql]
-     *               - full [boolean] [pgsql-only]
-     *               - freeze [boolean] [pgsql-only]
-     *
-     * @return mixed MDB2_OK success, a MDB2 error on failure
-     * @access public
-     */
-    function vacuum($table = null, $options = array())
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-        $query = 'VACUUM';
-
-        if (!empty($options['full'])) {
-            $query .= ' FULL';
-        }
-        if (!empty($options['freeze'])) {
-            $query .= ' FREEZE';
-        }
-        if (!empty($options['analyze'])) {
-            $query .= ' ANALYZE';
-        }
-
-        if (!empty($table)) {
-            $query .= ' '.$db->quoteIdentifier($table, true);
-        }
-        return $db->exec($query);
-    }
-
-    // }}}
-    // {{{ alterTable()
-
-    /**
-     * alter an existing table
-     *
-     * @param string $name         name of the table that is intended to be changed.
-     * @param array $changes     associative array that contains the details of each type
-     *                             of change that is intended to be performed. The types of
-     *                             changes that are currently supported are defined as follows:
-     *
-     *                             name
-     *
-     *                                New name for the table.
-     *
-     *                            add
-     *
-     *                                Associative array with the names of fields to be added as
-     *                                 indexes of the array. The value of each entry of the array
-     *                                 should be set to another associative array with the properties
-     *                                 of the fields to be added. The properties of the fields should
-     *                                 be the same as defined by the MDB2 parser.
-     *
-     *
-     *                            remove
-     *
-     *                                Associative array with the names of fields to be removed as indexes
-     *                                 of the array. Currently the values assigned to each entry are ignored.
-     *                                 An empty array should be used for future compatibility.
-     *
-     *                            rename
-     *
-     *                                Associative array with the names of fields to be renamed as indexes
-     *                                 of the array. The value of each entry of the array should be set to
-     *                                 another associative array with the entry named name with the new
-     *                                 field name and the entry named Declaration that is expected to contain
-     *                                 the portion of the field declaration already in DBMS specific SQL code
-     *                                 as it is used in the CREATE TABLE statement.
-     *
-     *                            change
-     *
-     *                                Associative array with the names of the fields to be changed as indexes
-     *                                 of the array. Keep in mind that if it is intended to change either the
-     *                                 name of a field and any other properties, the change array entries
-     *                                 should have the new names of the fields as array indexes.
-     *
-     *                                The value of each entry of the array should be set to another associative
-     *                                 array with the properties of the fields to that are meant to be changed as
-     *                                 array entries. These entries should be assigned to the new values of the
-     *                                 respective properties. The properties of the fields should be the same
-     *                                 as defined by the MDB2 parser.
-     *
-     *                            Example
-     *                                array(
-     *                                    'name' => 'userlist',
-     *                                    'add' => array(
-     *                                        'quota' => array(
-     *                                            'type' => 'integer',
-     *                                            'unsigned' => 1
-     *                                        )
-     *                                    ),
-     *                                    'remove' => array(
-     *                                        'file_limit' => array(),
-     *                                        'time_limit' => array()
-     *                                    ),
-     *                                    'change' => array(
-     *                                        'name' => array(
-     *                                            'length' => '20',
-     *                                            'definition' => array(
-     *                                                'type' => 'text',
-     *                                                'length' => 20,
-     *                                            ),
-     *                                        )
-     *                                    ),
-     *                                    'rename' => array(
-     *                                        'sex' => array(
-     *                                            'name' => 'gender',
-     *                                            'definition' => array(
-     *                                                'type' => 'text',
-     *                                                'length' => 1,
-     *                                                'default' => 'M',
-     *                                            ),
-     *                                        )
-     *                                    )
-     *                                )
-     *
-     * @param boolean $check     indicates whether the function should just check if the DBMS driver
-     *                             can perform the requested table alterations if the value is true or
-     *                             actually perform them otherwise.
-     * @access public
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     */
-    function alterTable($name, $changes, $check)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        foreach ($changes as $change_name => $change) {
-            switch ($change_name) {
-            case 'add':
-            case 'remove':
-            case 'change':
-            case 'name':
-            case 'rename':
-                break;
-            default:
-                return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
-                    'change type "'.$change_name.'\" not yet supported', __FUNCTION__);
-            }
-        }
-
-        if ($check) {
-            return MDB2_OK;
-        }
-
-        $name = $db->quoteIdentifier($name, true);
-
-        if (!empty($changes['remove']) && is_array($changes['remove'])) {
-            foreach ($changes['remove'] as $field_name => $field) {
-                $field_name = $db->quoteIdentifier($field_name, true);
-                $query = 'DROP ' . $field_name;
-                $result = $db->exec("ALTER TABLE $name $query");
-                if (PEAR::isError($result)) {
-                    return $result;
-                }
-            }
-        }
-
-        if (!empty($changes['rename']) && is_array($changes['rename'])) {
-            foreach ($changes['rename'] as $field_name => $field) {
-                $field_name = $db->quoteIdentifier($field_name, true);
-                $result = $db->exec("ALTER TABLE $name RENAME COLUMN $field_name TO ".$db->quoteIdentifier($field['name'], true));
-                if (PEAR::isError($result)) {
-                    return $result;
-                }
-            }
-        }
-
-        if (!empty($changes['add']) && is_array($changes['add'])) {
-            foreach ($changes['add'] as $field_name => $field) {
-                $query = 'ADD ' . $db->getDeclaration($field['type'], $field_name, $field);
-                $result = $db->exec("ALTER TABLE $name $query");
-                if (PEAR::isError($result)) {
-                    return $result;
-                }
-            }
-        }
-
-        if (!empty($changes['change']) && is_array($changes['change'])) {
-            foreach ($changes['change'] as $field_name => $field) {
-                $field_name = $db->quoteIdentifier($field_name, true);
-                if (!empty($field['definition']['type'])) {
-                    $server_info = $db->getServerVersion();
-                    if (PEAR::isError($server_info)) {
-                        return $server_info;
-                    }
-                    if (is_array($server_info) && $server_info['major'] < 8) {
-                        return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
-                            'changing column type for "'.$change_name.'\" requires PostgreSQL 8.0 or above', __FUNCTION__);
-                    }
-                    $db->loadModule('Datatype', null, true);
-                    $type = $db->datatype->getTypeDeclaration($field['definition']);
-                    $query = "ALTER $field_name TYPE $type USING CAST($field_name AS $type)";
-                    $result = $db->exec("ALTER TABLE $name $query");
-                    if (PEAR::isError($result)) {
-                        return $result;
-                    }
-                }
-                if (array_key_exists('default', $field['definition'])) {
-                    $query = "ALTER $field_name SET DEFAULT ".$db->quote($field['definition']['default'], $field['definition']['type']);
-                    $result = $db->exec("ALTER TABLE $name $query");
-                    if (PEAR::isError($result)) {
-                        return $result;
-                    }
-                }
-                if (array_key_exists('notnull', $field['definition'])) {
-                    $query = "ALTER $field_name ".($field['definition']['notnull'] ? 'SET' : 'DROP').' NOT NULL';
-                    $result = $db->exec("ALTER TABLE $name $query");
-                    if (PEAR::isError($result)) {
-                        return $result;
-                    }
-                }
-            }
-        }
-
-        if (!empty($changes['name'])) {
-            $change_name = $db->quoteIdentifier($changes['name'], true);
-            $result = $db->exec("ALTER TABLE $name RENAME TO ".$change_name);
-            if (PEAR::isError($result)) {
-                return $result;
-            }
-        }
-
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ listDatabases()
-
-    /**
-     * list all databases
-     *
-     * @return mixed array of database names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listDatabases()
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'SELECT datname FROM pg_database';
-        $result2 = $db->standaloneQuery($query, array('text'), false);
-        if (!MDB2::isResultCommon($result2)) {
-            return $result2;
-        }
-
-        $result = $result2->fetchCol();
-        $result2->free();
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ listUsers()
-
-    /**
-     * list all users
-     *
-     * @return mixed array of user names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listUsers()
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'SELECT usename FROM pg_user';
-        $result2 = $db->standaloneQuery($query, array('text'), false);
-        if (!MDB2::isResultCommon($result2)) {
-            return $result2;
-        }
-
-        $result = $result2->fetchCol();
-        $result2->free();
-        return $result;
-    }
-
-    // }}}
-    // {{{ listViews()
-
-    /**
-     * list all views in the current database
-     *
-     * @return mixed array of view names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listViews()
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = "SELECT viewname
-                    FROM pg_views
-                   WHERE schemaname NOT IN ('pg_catalog', 'information_schema')
-                     AND viewname !~ '^pg_'";
-        $result = $db->queryCol($query);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ listTableViews()
-
-    /**
-     * list the views in the database that reference a given table
-     *
-     * @param string table for which all referenced views should be found
-     * @return mixed array of view names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableViews($table)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'SELECT viewname FROM pg_views NATURAL JOIN pg_tables';
-        $query.= ' WHERE tablename ='.$db->quote($table, 'text');
-        $result = $db->queryCol($query);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ listFunctions()
-
-    /**
-     * list all functions in the current database
-     *
-     * @return mixed array of function names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listFunctions()
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = "
-            SELECT
-                proname
-            FROM
-                pg_proc pr,
-                pg_type tp
-            WHERE
-                tp.oid = pr.prorettype
-                AND pr.proisagg = FALSE
-                AND tp.typname <> 'trigger'
-                AND pr.pronamespace IN
-                    (SELECT oid FROM pg_namespace WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')";
-        $result = $db->queryCol($query);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ listTableTriggers()
-
-    /**
-     * list all triggers in the database that reference a given table
-     *
-     * @param string table for which all referenced triggers should be found
-     * @return mixed array of trigger names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableTriggers($table = null)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'SELECT trg.tgname AS trigger_name
-                    FROM pg_trigger trg,
-                         pg_class tbl
-                   WHERE trg.tgrelid = tbl.oid';
-        if (null !== $table) {
-            $table = $db->quote(strtoupper($table), 'text');
-            $query .= " AND UPPER(tbl.relname) = $table";
-        }
-        $result = $db->queryCol($query);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ listTables()
-
-    /**
-     * list all tables in the current database
-     *
-     * @return mixed array of table names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTables()
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        // gratuitously stolen from PEAR DB _getSpecialQuery in pgsql.php
-        $query = 'SELECT c.relname AS "Name"'
-            . ' FROM pg_class c, pg_user u'
-            . ' WHERE c.relowner = u.usesysid'
-            . " AND c.relkind = 'r'"
-            . ' AND NOT EXISTS'
-            . ' (SELECT 1 FROM pg_views'
-            . '  WHERE viewname = c.relname)'
-            . " AND c.relname !~ '^(pg_|sql_)'"
-            . ' UNION'
-            . ' SELECT c.relname AS "Name"'
-            . ' FROM pg_class c'
-            . " WHERE c.relkind = 'r'"
-            . ' AND NOT EXISTS'
-            . ' (SELECT 1 FROM pg_views'
-            . '  WHERE viewname = c.relname)'
-            . ' AND NOT EXISTS'
-            . ' (SELECT 1 FROM pg_user'
-            . '  WHERE usesysid = c.relowner)'
-            . " AND c.relname !~ '^pg_'";
-        $result = $db->queryCol($query);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ listTableFields()
-
-    /**
-     * list all fields in a table in the current database
-     *
-     * @param string $table name of table that should be used in method
-     * @return mixed array of field names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableFields($table)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        list($schema, $table) = $this->splitTableSchema($table);
-
-        $table = $db->quoteIdentifier($table, true);
-        if (!empty($schema)) {
-            $table = $db->quoteIdentifier($schema, true) . '.' .$table;
-        }
-        $db->setLimit(1);
-        $result2 = $db->query("SELECT * FROM $table");
-        if (PEAR::isError($result2)) {
-            return $result2;
-        }
-        $result = $result2->getColumnNames();
-        $result2->free();
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        return array_flip($result);
-    }
-
-    // }}}
-    // {{{ listTableIndexes()
-
-    /**
-     * list all indexes in a table
-     *
-     * @param string $table name of table that should be used in method
-     * @return mixed array of index names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableIndexes($table)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        list($schema, $table) = $this->splitTableSchema($table);
-
-        $table = $db->quote($table, 'text');
-        $subquery = "SELECT indexrelid
-                       FROM pg_index
-                  LEFT JOIN pg_class ON pg_class.oid = pg_index.indrelid
-                  LEFT JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
-                      WHERE pg_class.relname = $table
-                        AND indisunique != 't'
-                        AND indisprimary != 't'";
-        if (!empty($schema)) {
-            $subquery .= ' AND pg_namespace.nspname = '.$db->quote($schema, 'text');
-        }
-        $query = "SELECT relname FROM pg_class WHERE oid IN ($subquery)";
-        $indexes = $db->queryCol($query, 'text');
-        if (PEAR::isError($indexes)) {
-            return $indexes;
-        }
-
-        $result = array();
-        foreach ($indexes as $index) {
-            $index = $this->_fixIndexName($index);
-            if (!empty($index)) {
-                $result[$index] = true;
-            }
-        }
-
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_change_key_case($result, $db->options['field_case']);
-        }
-        return array_keys($result);
-    }
-
-    // }}}
-    // {{{ dropConstraint()
-
-    /**
-     * drop existing constraint
-     *
-     * @param string $table   name of table that should be used in method
-     * @param string $name    name of the constraint to be dropped
-     * @param string $primary hint if the constraint is primary
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropConstraint($table, $name, $primary = false)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        // is it an UNIQUE index?
-        $query = 'SELECT relname
-                    FROM pg_class
-                   WHERE oid IN (
-                         SELECT indexrelid
-                           FROM pg_index, pg_class
-                          WHERE pg_class.relname = '.$db->quote($table, 'text').'
-                            AND pg_class.oid = pg_index.indrelid
-                            AND indisunique = \'t\')
-                  EXCEPT
-                  SELECT conname
-                   FROM pg_constraint, pg_class
-                  WHERE pg_constraint.conrelid = pg_class.oid
-                    AND relname = '. $db->quote($table, 'text');
-        $unique = $db->queryCol($query, 'text');
-        if (PEAR::isError($unique) || empty($unique)) {
-            // not an UNIQUE index, maybe a CONSTRAINT
-            return parent::dropConstraint($table, $name, $primary);
-        }
-
-        if (in_array($name, $unique)) {
-            return $db->exec('DROP INDEX '.$db->quoteIdentifier($name, true));
-        }
-        $idxname = $db->getIndexName($name);
-        if (in_array($idxname, $unique)) {
-            return $db->exec('DROP INDEX '.$db->quoteIdentifier($idxname, true));
-        }
-        return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
-            $name . ' is not an existing constraint for table ' . $table, __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listTableConstraints()
-
-    /**
-     * list all constraints in a table
-     *
-     * @param string $table name of table that should be used in method
-     * @return mixed array of constraint names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableConstraints($table)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        list($schema, $table) = $this->splitTableSchema($table);
-
-        $table = $db->quote($table, 'text');
-        $query = 'SELECT conname
-                    FROM pg_constraint
-               LEFT JOIN pg_class ON pg_constraint.conrelid = pg_class.oid
-               LEFT JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
-                   WHERE relname = ' .$table;
-        if (!empty($schema)) {
-            $query .= ' AND pg_namespace.nspname = ' . $db->quote($schema, 'text');
-        }
-        $query .= '
-                   UNION DISTINCT
-                  SELECT relname
-                    FROM pg_class
-                   WHERE oid IN (
-                         SELECT indexrelid
-                           FROM pg_index
-                      LEFT JOIN pg_class ON pg_class.oid = pg_index.indrelid
-                      LEFT JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
-                          WHERE pg_class.relname = '.$table.'
-                            AND indisunique = \'t\'';
-        if (!empty($schema)) {
-            $query .= ' AND pg_namespace.nspname = ' . $db->quote($schema, 'text');
-        }
-        $query .= ')';
-        $constraints = $db->queryCol($query);
-        if (PEAR::isError($constraints)) {
-            return $constraints;
-        }
-
-        $result = array();
-        foreach ($constraints as $constraint) {
-            $constraint = $this->_fixIndexName($constraint);
-            if (!empty($constraint)) {
-                $result[$constraint] = true;
-            }
-        }
-
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
-            && $db->options['field_case'] == CASE_LOWER
-        ) {
-            $result = array_change_key_case($result, $db->options['field_case']);
-        }
-        return array_keys($result);
-    }
-
-    // }}}
-    // {{{ createSequence()
-
-    /**
-     * create sequence
-     *
-     * @param string $seq_name name of the sequence to be created
-     * @param string $start start value of the sequence; default is 1
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createSequence($seq_name, $start = 1)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
-        return $db->exec("CREATE SEQUENCE $sequence_name INCREMENT 1".
-            ($start < 1 ? " MINVALUE $start" : '')." START $start");
-    }
-
-    // }}}
-    // {{{ dropSequence()
-
-    /**
-     * drop existing sequence
-     *
-     * @param string $seq_name name of the sequence to be dropped
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropSequence($seq_name)
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
-        return $db->exec("DROP SEQUENCE $sequence_name");
-    }
-
-    // }}}
-    // {{{ listSequences()
-
-    /**
-     * list all sequences in the current database
-     *
-     * @return mixed array of sequence names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listSequences()
-    {
-        $db = $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = "SELECT relname FROM pg_class WHERE relkind = 'S' AND relnamespace IN";
-        $query.= "(SELECT oid FROM pg_namespace WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')";
-        $table_names = $db->queryCol($query);
-        if (PEAR::isError($table_names)) {
-            return $table_names;
-        }
-        $result = array();
-        foreach ($table_names as $table_name) {
-            $result[] = $this->_fixSequenceName($table_name);
-        }
-        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
-        }
-        return $result;
-    }
-}
-?>
\ No newline at end of file