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<?php
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/**
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* PostgreSQL 8.3 support
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*
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* $Id: Postgres82.php,v 1.10 2007/12/28 16:21:25 ioguix Exp $
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*/
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include_once('./classes/database/Postgres84.php');
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class Postgres83 extends Postgres84 {
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var $major_version = 8.3;
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// List of all legal privileges that can be applied to different types
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// of objects.
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var $privlist = array(
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'table' => array('SELECT', 'INSERT', 'UPDATE', 'DELETE', 'REFERENCES', 'TRIGGER', 'ALL PRIVILEGES'),
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'view' => array('SELECT', 'INSERT', 'UPDATE', 'DELETE', 'REFERENCES', 'TRIGGER', 'ALL PRIVILEGES'),
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'sequence' => array('SELECT', 'UPDATE', 'ALL PRIVILEGES'),
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'database' => array('CREATE', 'TEMPORARY', 'CONNECT', 'ALL PRIVILEGES'),
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'function' => array('EXECUTE', 'ALL PRIVILEGES'),
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'language' => array('USAGE', 'ALL PRIVILEGES'),
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'schema' => array('CREATE', 'USAGE', 'ALL PRIVILEGES'),
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'tablespace' => array('CREATE', 'ALL PRIVILEGES')
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);
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// List of characters in acl lists and the privileges they
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// refer to.
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var $privmap = array(
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'r' => 'SELECT',
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'w' => 'UPDATE',
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'a' => 'INSERT',
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'd' => 'DELETE',
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'R' => 'RULE',
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'x' => 'REFERENCES',
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't' => 'TRIGGER',
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'X' => 'EXECUTE',
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'U' => 'USAGE',
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'C' => 'CREATE',
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'T' => 'TEMPORARY',
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'c' => 'CONNECT'
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);
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/**
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* Constructor
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* @param $conn The database connection
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*/
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function Postgres83($conn) {
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$this->Postgres($conn);
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}
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// Help functions
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function getHelpPages() {
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include_once('./help/PostgresDoc83.php');
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return $this->help_page;
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}
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// Databse functions
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/**
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* Return all database available on the server
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* @param $currentdatabase database name that should be on top of the resultset
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*
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* @return A list of databases, sorted alphabetically
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*/
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function getDatabases($currentdatabase = NULL) {
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global $conf, $misc;
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$server_info = $misc->getServerInfo();
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if (isset($conf['owned_only']) && $conf['owned_only'] && !$this->isSuperUser($server_info['username'])) {
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$username = $server_info['username'];
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$this->clean($username);
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$clause = " AND pr.rolname='{$username}'";
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}
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else $clause = '';
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if ($currentdatabase != NULL) {
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$this->clean($currentdatabase);
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$orderby = "ORDER BY pdb.datname = '{$currentdatabase}' DESC, pdb.datname";
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}
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else
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$orderby = "ORDER BY pdb.datname";
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if (!$conf['show_system'])
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$where = ' AND NOT pdb.datistemplate';
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else
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$where = ' AND pdb.datallowconn';
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$sql = "
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SELECT pdb.datname AS datname, pr.rolname AS datowner, pg_encoding_to_char(encoding) AS datencoding,
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(SELECT description FROM pg_catalog.pg_shdescription pd WHERE pdb.oid=pd.objoid) AS datcomment,
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(SELECT spcname FROM pg_catalog.pg_tablespace pt WHERE pt.oid=pdb.dattablespace) AS tablespace,
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pg_catalog.pg_database_size(pdb.oid) as dbsize
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FROM pg_catalog.pg_database pdb LEFT JOIN pg_catalog.pg_roles pr ON (pdb.datdba = pr.oid)
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WHERE true
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{$where}
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{$clause}
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{$orderby}";
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return $this->selectSet($sql);
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}
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// Administration functions
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/**
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* Returns all available autovacuum per table information.
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* @return A recordset
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*/
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function getTableAutovacuum($table='') {
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$sql = '';
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if ($table !== '') {
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$this->clean($table);
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$c_schema = $this->_schema;
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$this->clean($c_schema);
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$sql = "
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SELECT vacrelid, nspname, relname,
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CASE enabled
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WHEN 't' THEN 'on'
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ELSE 'off'
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END AS autovacuum_enabled, vac_base_thresh AS autovacuum_vacuum_threshold,
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vac_scale_factor AS autovacuum_vacuum_scale_factor, anl_base_thresh AS autovacuum_analyze_threshold,
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anl_scale_factor AS autovacuum_analyze_scale_factor, vac_cost_delay AS autovacuum_vacuum_cost_delay,
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vac_cost_limit AS autovacuum_vacuum_cost_limit
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FROM pg_autovacuum AS a
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join pg_class AS c on (c.oid=a.vacrelid)
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join pg_namespace AS n on (n.oid=c.relnamespace)
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WHERE c.relname = '{$table}' AND n.nspname = '{$c_schema}'
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ORDER BY nspname, relname
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";
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}
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else {
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$sql = "
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SELECT vacrelid, nspname, relname,
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CASE enabled
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WHEN 't' THEN 'on'
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ELSE 'off'
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END AS autovacuum_enabled, vac_base_thresh AS autovacuum_vacuum_threshold,
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vac_scale_factor AS autovacuum_vacuum_scale_factor, anl_base_thresh AS autovacuum_analyze_threshold,
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anl_scale_factor AS autovacuum_analyze_scale_factor, vac_cost_delay AS autovacuum_vacuum_cost_delay,
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vac_cost_limit AS autovacuum_vacuum_cost_limit
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FROM pg_autovacuum AS a
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join pg_class AS c on (c.oid=a.vacrelid)
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join pg_namespace AS n on (n.oid=c.relnamespace)
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ORDER BY nspname, relname
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";
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}
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return $this->selectSet($sql);
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}
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function saveAutovacuum($table, $vacenabled, $vacthreshold, $vacscalefactor, $anathresold,
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$anascalefactor, $vaccostdelay, $vaccostlimit)
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{
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$defaults = $this->getAutovacuum();
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$c_schema = $this->_schema;
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$this->clean($c_schema);
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$this->clean($table);
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$rs = $this->selectSet("
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SELECT c.oid
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FROM pg_catalog.pg_class AS c
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LEFT JOIN pg_catalog.pg_namespace AS n ON (n.oid=c.relnamespace)
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WHERE
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c.relname = '{$table}' AND n.nspname = '{$c_schema}'
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");
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if ($rs->EOF)
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return -1;
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$toid = $rs->fields('oid');
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unset ($rs);
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if (empty($_POST['autovacuum_vacuum_threshold']))
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$_POST['autovacuum_vacuum_threshold'] = $defaults['autovacuum_vacuum_threshold'];
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if (empty($_POST['autovacuum_vacuum_scale_factor']))
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$_POST['autovacuum_vacuum_scale_factor'] = $defaults['autovacuum_vacuum_scale_factor'];
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if (empty($_POST['autovacuum_analyze_threshold']))
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$_POST['autovacuum_analyze_threshold'] = $defaults['autovacuum_analyze_threshold'];
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if (empty($_POST['autovacuum_analyze_scale_factor']))
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$_POST['autovacuum_analyze_scale_factor'] = $defaults['autovacuum_analyze_scale_factor'];
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if (empty($_POST['autovacuum_vacuum_cost_delay']))
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$_POST['autovacuum_vacuum_cost_delay'] = $defaults['autovacuum_vacuum_cost_delay'];
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if (empty($_POST['autovacuum_vacuum_cost_limit']))
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$_POST['autovacuum_vacuum_cost_limit'] = $defaults['autovacuum_vacuum_cost_limit'];
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if (empty($_POST['vacuum_freeze_min_age']))
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$_POST['vacuum_freeze_min_age'] = $defaults['vacuum_freeze_min_age'];
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if (empty($_POST['autovacuum_freeze_max_age']))
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$_POST['autovacuum_freeze_max_age'] = $defaults['autovacuum_freeze_max_age'];
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$rs = $this->selectSet("SELECT vacrelid
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FROM \"pg_catalog\".\"pg_autovacuum\"
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WHERE vacrelid = {$toid};");
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$status = -1; // ini
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if (isset($rs->fields['vacrelid']) and ($rs->fields['vacrelid'] == $toid)) {
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// table exists in pg_autovacuum, UPDATE
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$sql = sprintf("UPDATE \"pg_catalog\".\"pg_autovacuum\" SET
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enabled = '%s',
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vac_base_thresh = %s,
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vac_scale_factor = %s,
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anl_base_thresh = %s,
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anl_scale_factor = %s,
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vac_cost_delay = %s,
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vac_cost_limit = %s,
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freeze_min_age = %s,
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freeze_max_age = %s
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WHERE vacrelid = {$toid};
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",
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($_POST['autovacuum_enabled'] == 'on')? 't':'f',
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$_POST['autovacuum_vacuum_threshold'],
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$_POST['autovacuum_vacuum_scale_factor'],
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$_POST['autovacuum_analyze_threshold'],
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$_POST['autovacuum_analyze_scale_factor'],
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$_POST['autovacuum_vacuum_cost_delay'],
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$_POST['autovacuum_vacuum_cost_limit'],
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$_POST['vacuum_freeze_min_age'],
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$_POST['autovacuum_freeze_max_age']
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);
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$status = $this->execute($sql);
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}
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else {
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// table doesn't exists in pg_autovacuum, INSERT
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$sql = sprintf("INSERT INTO \"pg_catalog\".\"pg_autovacuum\"
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VALUES (%s, '%s', %s, %s, %s, %s, %s, %s, %s, %s )
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WHERE
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c.relname = '{$table}' AND n.nspname = '{$c_schema}';",
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$toid,
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($_POST['autovacuum_enabled'] == 'on')? 't':'f',
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$_POST['autovacuum_vacuum_threshold'],
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$_POST['autovacuum_vacuum_scale_factor'],
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$_POST['autovacuum_analyze_threshold'],
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$_POST['autovacuum_analyze_scale_factor'],
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$_POST['autovacuum_vacuum_cost_delay'],
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$_POST['autovacuum_vacuum_cost_limit'],
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$_POST['vacuum_freeze_min_age'],
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$_POST['autovacuum_freeze_max_age']
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);
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$status = $this->execute($sql);
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}
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return $status;
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}
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function dropAutovacuum($table) {
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$c_schema = $this->_schema;
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$this->clean($c_schema);
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$this->clean($table);
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$rs = $this->selectSet("
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SELECT c.oid
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FROM pg_catalog.pg_class AS c
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LEFT JOIN pg_catalog.pg_namespace AS n ON (n.oid=c.relnamespace)
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WHERE
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c.relname = '{$table}' AND n.nspname = '{$c_schema}'
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");
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return $this->deleteRow('pg_autovacuum', array('vacrelid' => $rs->fields['oid']), 'pg_catalog');
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}
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// Sequence functions
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/**
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* Alter a sequence's properties
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* @param $seqrs The sequence RecordSet returned by getSequence()
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* @param $increment The sequence incremental value
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* @param $minvalue The sequence minimum value
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* @param $maxvalue The sequence maximum value
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* @param $restartvalue The sequence current value
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* @param $cachevalue The sequence cache value
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* @param $cycledvalue Sequence can cycle ?
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* @param $startvalue The sequence start value when issueing a restart (ignored)
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* @return 0 success
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*/
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function alterSequenceProps($seqrs, $increment, $minvalue, $maxvalue,
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$restartvalue, $cachevalue, $cycledvalue, $startvalue) {
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$sql = '';
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/* vars are cleaned in _alterSequence */
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if (!empty($increment) && ($increment != $seqrs->fields['increment_by'])) $sql .= " INCREMENT {$increment}";
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if (!empty($minvalue) && ($minvalue != $seqrs->fields['min_value'])) $sql .= " MINVALUE {$minvalue}";
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if (!empty($maxvalue) && ($maxvalue != $seqrs->fields['max_value'])) $sql .= " MAXVALUE {$maxvalue}";
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if (!empty($restartvalue) && ($restartvalue != $seqrs->fields['last_value'])) $sql .= " RESTART {$restartvalue}";
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if (!empty($cachevalue) && ($cachevalue != $seqrs->fields['cache_value'])) $sql .= " CACHE {$cachevalue}";
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// toggle cycle yes/no
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if (!is_null($cycledvalue)) $sql .= (!$cycledvalue ? ' NO ' : '') . " CYCLE";
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if ($sql != '') {
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$f_schema = $this->_schema;
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$this->fieldClean($f_schema);
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$sql = "ALTER SEQUENCE \"{$f_schema}\".\"{$seqrs->fields['seqname']}\" {$sql}";
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return $this->execute($sql);
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}
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return 0;
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}
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/**
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* Alter a sequence's owner
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* @param $seqrs The sequence RecordSet returned by getSequence()
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* @param $name The new owner for the sequence
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* @return 0 success
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*/
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function alterSequenceOwner($seqrs, $owner) {
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// If owner has been changed, then do the alteration. We are
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// careful to avoid this generally as changing owner is a
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// superuser only function.
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/* vars are cleaned in _alterSequence */
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if (!empty($owner) && ($seqrs->fields['seqowner'] != $owner)) {
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$f_schema = $this->_schema;
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$this->fieldClean($f_schema);
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$sql = "ALTER TABLE \"{$f_schema}\".\"{$seqrs->fields['seqname']}\" OWNER TO \"{$owner}\"";
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return $this->execute($sql);
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}
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return 0;
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}
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function hasQueryKill() { return false; }
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function hasDatabaseCollation() { return false; }
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function hasAlterSequenceStart() { return false; }
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}
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?>
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