Source for file pgsql.php
Documentation is available at pgsql.php
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2006 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 |
// | 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,v 1.64 2006/08/21 16:39:37 lsmith Exp $
require_once 'MDB2/Driver/Manager/Common.php';
* MDB2 MySQL driver for the management modules
* @author Paul Cooper <pgc@ucecom.com>
* @param string $name name of the database that should be created
* @return mixed MDB2_OK on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$name = $db->quoteIdentifier ($name, true );
return $db->standaloneQuery (" CREATE DATABASE $name" , null , true );
* 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
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$name = $db->quoteIdentifier ($name, true );
return $db->standaloneQuery (" DROP DATABASE $name" , null , true );
* 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:
* New name for the table.
* 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 Metabase parser.
* 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.
* 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.
* 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 Metabase parser.
* 'file_limit' => array(),
* 'time_limit' => array()
* @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.
* @return mixed MDB2_OK on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
foreach ($changes as $change_name => $change) {
return $db->raiseError (MDB2_ERROR_CANNOT_ALTER , null , null ,
'change type "'. $change_name. '\" not yet supported', __FUNCTION__ );
if (!empty ($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)) {
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)) {
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['type'])) {
$server_info = $db->getServerVersion ();
if (PEAR ::isError ($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 );
$query = " ALTER $field_name TYPE ". $db->datatype ->getTypeDeclaration ($field['definition']);
$result = $db->exec (" ALTER TABLE $name $query" );
if (PEAR ::isError ($result)) {
$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)) {
if (!empty ($field['notnull'])) {
$query = " ALTER $field_name ". ($field['definition']['notnull'] ? "SET" : "DROP"). ' NOT NULL';
$result = $db->exec (" ALTER TABLE $name $query" );
if (PEAR ::isError ($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)) {
$name = $db->quoteIdentifier ($name, true );
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 mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$query = 'SELECT datname FROM pg_database';
$result2 = $db->standaloneQuery ($query, array ('text'), false );
if (!MDB2 ::isResultCommon ($result2)) {
$result = $result2->fetchCol ();
if (PEAR ::isError ($result)) {
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$result = array_map(($db->options ['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$query = 'SELECT usename FROM pg_user';
$result2 = $db->standaloneQuery ($query, array ('text'), false );
if (!MDB2 ::isResultCommon ($result2)) {
$result = $result2->fetchCol ();
* list the views in the database
* @return mixed MDB2_OK on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$query = 'SELECT viewname FROM pg_views';
$result = $db->queryCol ($query);
if (PEAR ::isError ($result)) {
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$result = array_map(($db->options ['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
* list the views in the database that reference a given table
* @param string table for which all references views should be found
* @return mixed MDB2_OK on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($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 ($result)) {
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$result = array_map(($db->options ['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
* list all functions in the current database
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
AND tp.typname <> 'trigger'
(SELECT oid FROM pg_namespace WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')";
$result = $db->queryCol ($query);
if (PEAR ::isError ($result)) {
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$result = array_map(($db->options ['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
* list all tables in the current database
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($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'
. ' (SELECT 1 FROM pg_views'
. ' WHERE viewname = c.relname)'
. " AND c.relname !~ '^(pg_|sql_)'"
. ' SELECT c.relname AS "Name"'
. " WHERE c.relkind = 'r'"
. ' (SELECT 1 FROM pg_views'
. ' WHERE viewname = c.relname)'
. ' (SELECT 1 FROM pg_user'
. ' WHERE usesysid = c.relowner)'
. " AND c.relname !~ '^pg_'";
$result = $db->queryCol ($query);
if (PEAR ::isError ($result)) {
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$result = array_map(($db->options ['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
* list all fields in a tables in the current database
* @param string $table name of table that should be used in method
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$table = $db->quoteIdentifier ($table, true );
$result2 = $db->query (" SELECT * FROM $table" );
if (PEAR ::isError ($result2)) {
$result = $result2->getColumnNames ();
if (PEAR ::isError ($result)) {
// {{{ listTableIndexes()
* list all indexes in a table
* @param string $table name of table that should be used in method
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$table = $db->quote ($table, 'text');
$subquery = "SELECT indexrelid FROM pg_index, pg_class";
$subquery.= " WHERE pg_class.relname=$table AND pg_class.oid=pg_index.indrelid AND indisunique != 't' AND indisprimary != 't'";
$query = " SELECT relname FROM pg_class WHERE oid IN ($subquery)";
$indexes = $db->queryCol ($query, 'text');
if (PEAR ::isError ($indexes)) {
foreach ($indexes as $index) {
$index = $this->_fixIndexName ($index);
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
// {{{ listTableConstraints()
* list all constraints in a table
* @param string $table name of table that should be used in method
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$table = $db->quote ($table, 'text');
$subquery = "SELECT indexrelid FROM pg_index, pg_class";
$subquery.= " WHERE pg_class.relname=$table AND pg_class.oid=pg_index.indrelid AND (indisunique = 't' OR indisprimary = 't')";
$query = " SELECT relname FROM pg_class WHERE oid IN ($subquery)";
$constraints = $db->queryCol ($query);
if (PEAR ::isError ($constraints)) {
foreach ($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
* @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
$db = & $this->getDBInstance ();
if (PEAR ::isError ($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" );
* @param string $seq_name name of the sequence to be dropped
* @return mixed MDB2_OK on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$sequence_name = $db->quoteIdentifier ($db->getSequenceName ($seq_name), true );
return $db->exec (" DROP SEQUENCE $sequence_name" );
* list all sequences in the current database
* @return mixed data array on success, a MDB2 error on failure
$db = & $this->getDBInstance ();
if (PEAR ::isError ($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 ($table_names)) {
foreach ($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);
Documentation generated on Mon, 11 Mar 2019 14:44:00 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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