libraries/Table.class.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @version $Id$
   6  */
   7
   8 /**
   9  * @todo make use of PMA_Message and PMA_Error
  10  */
  11 class PMA_Table
  12 {
  13
  14     static $cache = array();
  15
  16     /**
  17      * @var string  table name
  18      */
  19     var $name = '';
  20
  21     /**
  22      * @var string  database name
  23      */
  24     var $db_name = '';
  25
  26     /**
  27      * @var string  engine (innodb, myisam, bdb, ...)
  28      */
  29     var $engine = '';
  30
  31     /**
  32      * @var string  type (view, base table, system view)
  33      */
  34     var $type = '';
  35
  36     /**
  37      * @var array   settings
  38      */
  39     var $settings = array();
  40
  41     /**
  42      * @var array errors occured
  43      */
  44     var $errors = array();
  45
  46     /**
  47      * @var array messages
  48      */
  49     var $messages = array();
  50
  51     /**
  52      * Constructor
  53      *
  54      * @param   string  $table_name table name
  55      * @param   string  $db_name    database name
  56      */
  57     function __construct($table_name, $db_name)
  58     {
  59         $this->setName($table_name);
  60         $this->setDbName($db_name);
  61     }
  62
  63     /**
  64      * @see PMA_Table::getName()
  65      */
  66     function __toString()
  67     {
  68         return $this->getName();
  69     }
  70
  71     function getLastError()
  72     {
  73         return end($this->errors);
  74     }
  75
  76     function getLastMessage()
  77     {
  78         return end($this->messages);
  79     }
  80
  81     /**
  82      * sets table name
  83      *
  84      * @uses    $this->name to set it
  85      * @param   string  $table_name new table name
  86      */
  87     function setName($table_name)
  88     {
  89         $this->name = $table_name;
  90     }
  91
  92     /**
  93      * returns table name
  94      *
  95      * @uses    $this->name as return value
  96      * @param   boolean whether to quote name with backticks ``
  97      * @return  string  table name
  98      */
  99     function getName($quoted = false)
 100     {
 101         if ($quoted) {
 102             return PMA_backquote($this->name);
 103         }
 104         return $this->name;
 105     }
 106
 107     /**
 108      * sets database name for this table
 109      *
 110      * @uses    $this->db_name  to set it
 111      * @param   string  $db_name
 112      */
 113     function setDbName($db_name)
 114     {
 115         $this->db_name = $db_name;
 116     }
 117
 118     /**
 119      * returns database name for this table
 120      *
 121      * @uses    $this->db_name  as return value
 122      * @param   boolean whether to quote name with backticks ``
 123      * @return  string  database name for this table
 124      */
 125     function getDbName($quoted = false)
 126     {
 127         if ($quoted) {
 128             return PMA_backquote($this->db_name);
 129         }
 130         return $this->db_name;
 131     }
 132
 133     /**
 134      * returns full name for table, including database name
 135      *
 136      * @param   boolean whether to quote name with backticks ``
 137      */
 138     function getFullName($quoted = false)
 139     {
 140         return $this->getDbName($quoted) . '.' . $this->getName($quoted);
 141     }
 142
 143     static public function isView($db = null, $table = null)
 144     {
 145         if (strlen($db) && strlen($table)) {
 146             return PMA_Table::_isView($db, $table);
 147         }
 148
 149         if (isset($this) && strpos($this->get('TABLE TYPE'), 'VIEW')) {
 150             return true;
 151         }
 152
 153         return false;
 154     }
 155
 156     /**
 157      * sets given $value for given $param
 158      *
 159      * @uses    $this->settings to add or change value
 160      * @param   string  param name
 161      * @param   mixed   param value
 162      */
 163     function set($param, $value)
 164     {
 165         $this->settings[$param] = $value;
 166     }
 167
 168     /**
 169      * returns value for given setting/param
 170      *
 171      * @uses    $this->settings to return value
 172      * @param   string  name for value to return
 173      * @return  mixed   value for $param
 174      */
 175     function get($param)
 176     {
 177         if (isset($this->settings[$param])) {
 178             return $this->settings[$param];
 179         }
 180
 181         return null;
 182     }
 183
 184     /**
 185      * loads structure data
 186      * (this function is work in progress? not yet used)
 187      */
 188     function loadStructure()
 189     {
 190         $table_info = PMA_DBI_get_tables_full($this->getDbName(), $this->getName());
 191
 192         if (false === $table_info) {
 193             return false;
 194         }
 195
 196         $this->settings = $table_info;
 197
 198         if ($this->get('TABLE_ROWS') === null) {
 199             $this->set('TABLE_ROWS', PMA_Table::countRecords($this->getDbName(),
 200                 $this->getName(), true, true));
 201         }
 202
 203         $create_options = explode(' ', $this->get('TABLE_ROWS'));
 204
 205         // export create options by its name as variables into gloabel namespace
 206         // f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
 207         foreach ($create_options as $each_create_option) {
 208             $each_create_option = explode('=', $each_create_option);
 209             if (isset($each_create_option[1])) {
 210                 $this->set($$each_create_option[0], $each_create_option[1]);
 211             }
 212         }
 213     }
 214
 215     /**
 216      * Checks if this "table" is a view
 217      *
 218      * @deprecated
 219      * @todo see what we could do with the possible existence of $table_is_view
 220      * @param   string   the database name
 221      * @param   string   the table name
 222      *
 223      * @return  boolean  whether this is a view
 224      *
 225      * @access  public
 226      */
 227     static protected function _isView($db, $table)
 228     {
 229         // maybe we already know if the table is a view
 230         if (isset($GLOBALS['tbl_is_view']) && $GLOBALS['tbl_is_view']) {
 231             return true;
 232         }
 233
 234         // This would be the correct way of doing the check but at least in
 235         // MySQL 5.0.33 it's too slow when there are hundreds of databases
 236         // and/or tables (more than 3 minutes for 400 tables)
 237         /*if (false === PMA_DBI_fetch_value('SELECT TABLE_NAME FROM `information_schema`.`VIEWS` WHERE `TABLE_SCHEMA` = \'' . $db . '\' AND `TABLE_NAME` = \'' . $table . '\';')) {
 238             return false;
 239         } else {
 240             return true;
 241         } */
 242         // A more complete verification would be to check if all columns
 243         // from the result set are NULL except Name and Comment.
 244         // MySQL from 5.0.0 to 5.0.12 returns 'view',
 245         // from 5.0.13 returns 'VIEW'.
 246         // use substr() because the comment might contain something like:
 247         // (VIEW 'BASE2.VTEST' REFERENCES INVALID TABLE(S) OR COLUMN(S) OR FUNCTION)
 248         $comment = strtoupper(PMA_Table::sGetStatusInfo($db, $table, 'Comment'));
 249         return substr($comment, 0, 4) == 'VIEW';
 250     }
 251
 252     static public function sGetToolTip($db, $table)
 253     {
 254         return PMA_Table::sGetStatusInfo($db, $table, 'Comment')
 255             . ' (' . PMA_Table::countRecords($db, $table, true) . ')';
 256     }
 257
 258     static public function sGetStatusInfo($db, $table, $info = null, $force_read = false)
 259     {
 260         if (! isset(PMA_Table::$cache[$db][$table]) || $force_read) {
 261             PMA_Table::$cache[$db][$table] = PMA_DBI_fetch_single_row('SHOW TABLE STATUS FROM ' . PMA_backquote($db) . ' LIKE \'' . $table . '\'');
 262         }
 263
 264         if (null === $info) {
 265             return PMA_Table::$cache[$db][$table];
 266         }
 267
 268         if (! isset(PMA_Table::$cache[$db][$table][$info]) || $force_read) {
 269             PMA_Table::$cache[$db][$table] = PMA_DBI_fetch_single_row('SHOW TABLE STATUS FROM ' . PMA_backquote($db) . ' LIKE \'' . $table . '\'');
 270         }
 271         return PMA_Table::$cache[$db][$table][$info];
 272     }
 273
 274     /**
 275      * generates column/field specification for ALTER or CREATE TABLE syntax
 276      *
 277      * @todo    move into class PMA_Column
 278      * @todo on the interface, some js to clear the default value when the default
 279      * current_timestamp is checked
 280      * @static
 281      * @param   string  $name       name
 282      * @param   string  $type       type ('INT', 'VARCHAR', 'BIT', ...)
 283      * @param   string  $length     length ('2', '5,2', '', ...)
 284      * @param   string  $attribute
 285      * @param   string  $collation
 286      * @param   string  $null       with 'NULL' or 'NOT NULL'
 287      * @param   string  $default_type   whether default is CURRENT_TIMESTAMP,
 288      *                                  NULL, NONE, USER_DEFINED
 289      * @param   boolean $default_value  default value for USER_DEFINED default type
 290      * @param   string  $extra      'AUTO_INCREMENT'
 291      * @param   string  $comment    field comment
 292      * @param   array   &$field_primary list of fields for PRIMARY KEY
 293      * @param   string  $index
 294      * @return  string  field specification
 295      */
 296     static function generateFieldSpec($name, $type, $length = '', $attribute = '',
 297         $collation = '', $null = false, $default_type = 'USER_DEFINED',
 298         $default_value = '', $extra = '', $comment = '',
 299         &$field_primary, $index, $default_orig = false)
 300     {
 301
 302         $is_timestamp = strpos(' ' . strtoupper($type), 'TIMESTAMP') == 1;
 303
 304         /**
 305          * @todo include db-name
 306          */
 307         $query = PMA_backquote($name) . ' ' . $type;
 308
 309         if ($length != ''
 310             && !preg_match('@^(DATE|DATETIME|TIME|TINYBLOB|TINYTEXT|BLOB|TEXT|MEDIUMBLOB|MEDIUMTEXT|LONGBLOB|LONGTEXT)$@i', $type)) {
 311             $query .= '(' . $length . ')';
 312         }
 313
 314         if ($attribute != '') {
 315             $query .= ' ' . $attribute;
 316         }
 317
 318         if (!empty($collation) && $collation != 'NULL'
 319           && preg_match('@^(TINYTEXT|TEXT|MEDIUMTEXT|LONGTEXT|VARCHAR|CHAR|ENUM|SET)$@i', $type)) {
 320             $query .= PMA_generateCharsetQueryPart($collation);
 321         }
 322
 323         if ($null !== false) {
 324             if ($null == 'NULL') {
 325                 $query .= ' NULL';
 326             } else {
 327                 $query .= ' NOT NULL';
 328             }
 329         }
 330
 331         switch ($default_type) {
 332             case 'USER_DEFINED' :
 333                 if ($is_timestamp && $default_value === '0') {
 334                     // a TIMESTAMP does not accept DEFAULT '0'
 335                     // but DEFAULT 0 works
 336                     $query .= ' DEFAULT 0';
 337                 } elseif ($type == 'BIT') {
 338                     $query .= ' DEFAULT b\'' . preg_replace('/[^01]/', '0', $default_value) . '\'';
 339                 } else {
 340                     $query .= ' DEFAULT \'' . PMA_sqlAddslashes($default_value) . '\'';
 341                 }
 342                 break;
 343             case 'NULL' :
 344             case 'CURRENT_TIMESTAMP' :
 345                 $query .= ' DEFAULT ' . $default_type;
 346                 break;
 347             case 'NONE' :
 348             default :
 349                 break;
 350         }
 351
 352         if (!empty($extra)) {
 353             $query .= ' ' . $extra;
 354             // Force an auto_increment field to be part of the primary key
 355             // even if user did not tick the PK box;
 356             if ($extra == 'AUTO_INCREMENT') {
 357                 $primary_cnt = count($field_primary);
 358                 if (1 == $primary_cnt) {
 359                     for ($j = 0; $j < $primary_cnt && $field_primary[$j] != $index; $j++) {
 360                         //void
 361                     }
 362                     if (isset($field_primary[$j]) && $field_primary[$j] == $index) {
 363                         $query .= ' PRIMARY KEY';
 364                         unset($field_primary[$j]);
 365                     }
 366                 // but the PK could contain other columns so do not append
 367                 // a PRIMARY KEY clause, just add a member to $field_primary
 368                 } else {
 369                     $found_in_pk = false;
 370                     for ($j = 0; $j < $primary_cnt; $j++) {
 371                         if ($field_primary[$j] == $index) {
 372                             $found_in_pk = true;
 373                             break;
 374                         }
 375                     } // end for
 376                     if (! $found_in_pk) {
 377                         $field_primary[] = $index;
 378                     }
 379                 }
 380             } // end if (auto_increment)
 381         }
 382         if (!empty($comment)) {
 383             $query .= " COMMENT '" . PMA_sqlAddslashes($comment) . "'";
 384         }
 385         return $query;
 386     } // end function
 387
 388     /**
 389      * Counts and returns (or displays) the number of records in a table
 390      *
 391      * Revision 13 July 2001: Patch for limiting dump size from
 392      * vinay@sanisoft.com & girish@sanisoft.com
 393      *
 394      * @param   string   the current database name
 395      * @param   string   the current table name
 396      * @param   boolean  whether to retain or to displays the result
 397      * @param   boolean  whether to force an exact count
 398      *
 399      * @return  mixed    the number of records if "retain" param is true,
 400      *                   otherwise true
 401      *
 402      * @access  public
 403      */
 404     static public function countRecords($db, $table, $ret = false,
 405         $force_exact = false, $is_view = null)
 406     {
 407         if (isset(PMA_Table::$cache[$db][$table]['ExactRows'])) {
 408             $row_count = PMA_Table::$cache[$db][$table]['ExactRows'];
 409         } else {
 410             $row_count = false;
 411
 412             if (null === $is_view) {
 413                 $is_view = PMA_Table::isView($db, $table);
 414             }
 415
 416             if (! $force_exact) {
 417                 if (! isset(PMA_Table::$cache[$db][$table]['Rows']) && ! $is_view) {
 418                     PMA_Table::$cache[$db][$table] = PMA_DBI_fetch_single_row('SHOW TABLE STATUS FROM ' . PMA_backquote($db) . ' LIKE \'' . PMA_sqlAddslashes($table, true) . '\'');
 419                 }
 420                 $row_count = PMA_Table::$cache[$db][$table]['Rows'];
 421             }
 422
 423             // for a VIEW, $row_count is always false at this point
 424             if (false === $row_count || $row_count < $GLOBALS['cfg']['MaxExactCount']) {
 425                 if (! $is_view) {
 426                     $row_count = PMA_DBI_fetch_value(
 427                         'SELECT COUNT(*) FROM ' . PMA_backquote($db) . '.'
 428                         . PMA_backquote($table));
 429                 } else {
 430                     // For complex views, even trying to get a partial record
 431                     // count could bring down a server, so we offer an
 432                     // alternative: setting MaxExactCountViews to 0 will bypass
 433                     // completely the record counting for views
 434
 435                     if ($GLOBALS['cfg']['MaxExactCountViews'] == 0) {
 436                         $row_count = 0;
 437                     } else {
 438                         // Counting all rows of a VIEW could be too long, so use
 439                         // a LIMIT clause.
 440                         // Use try_query because it can fail (a VIEW is based on
 441                         // a table that no longer exists)
 442                         $result = PMA_DBI_try_query(
 443                             'SELECT 1 FROM ' . PMA_backquote($db) . '.'
 444                                 . PMA_backquote($table) . ' LIMIT '
 445                                 . $GLOBALS['cfg']['MaxExactCountViews'],
 446                                 null, PMA_DBI_QUERY_STORE);
 447                         if (!PMA_DBI_getError()) {
 448                             $row_count = PMA_DBI_num_rows($result);
 449                             PMA_DBI_free_result($result);
 450                         }
 451                     }
 452                 }
 453                 PMA_Table::$cache[$db][$table]['ExactRows'] = $row_count;
 454             }
 455         }
 456
 457         if ($ret) {
 458             return $row_count;
 459         }
 460
 461         /**
 462          * @deprecated at the moment nowhere is $return = false used
 463          */
 464         // Note: as of PMA 2.8.0, we no longer seem to be using
 465         // PMA_Table::countRecords() in display mode.
 466         echo PMA_formatNumber($row_count, 0);
 467         if ($is_view) {
 468             echo '&nbsp;'
 469                 . sprintf($GLOBALS['strViewHasAtLeast'],
 470                     $GLOBALS['cfg']['MaxExactCount'],
 471                     '[a@./Documentation.html#cfg_MaxExactCount@_blank]', '[/a]');
 472         }
 473     } // end of the 'PMA_Table::countRecords()' function
 474
 475     /**
 476      * @see PMA_Table::generateFieldSpec()
 477      */
 478     static public function generateAlter($oldcol, $newcol, $type, $length,
 479         $attribute, $collation, $null, $default_type, $default_value,
 480         $extra, $comment = '', &$field_primary, $index, $default_orig)
 481     {
 482         return PMA_backquote($oldcol) . ' '
 483             . PMA_Table::generateFieldSpec($newcol, $type, $length, $attribute,
 484                 $collation, $null, $default_type, $default_value, $extra,
 485                 $comment, $field_primary, $index, $default_orig);
 486     } // end function
 487
 488     /**
 489      * Inserts existing entries in a PMA_* table by reading a value from an old entry
 490      *
 491      * @param   string  The array index, which Relation feature to check
 492      *                  ('relwork', 'commwork', ...)
 493      * @param   string  The array index, which PMA-table to update
 494      *                  ('bookmark', 'relation', ...)
 495      * @param   array   Which fields will be SELECT'ed from the old entry
 496      * @param   array   Which fields will be used for the WHERE query
 497      *                  (array('FIELDNAME' => 'FIELDVALUE'))
 498      * @param   array   Which fields will be used as new VALUES. These are the important
 499      *                  keys which differ from the old entry.
 500      *                  (array('FIELDNAME' => 'NEW FIELDVALUE'))
 501
 502      * @global  string  relation variable
 503      *
 504      * @author          Garvin Hicking <me@supergarv.de>
 505      */
 506     static public function duplicateInfo($work, $pma_table, $get_fields, $where_fields,
 507       $new_fields)
 508     {
 509         $last_id = -1;
 510
 511         if (isset($GLOBALS['cfgRelation']) && $GLOBALS['cfgRelation'][$work]) {
 512             $select_parts = array();
 513             $row_fields = array();
 514             foreach ($get_fields as $get_field) {
 515                 $select_parts[] = PMA_backquote($get_field);
 516                 $row_fields[$get_field] = 'cc';
 517             }
 518
 519             $where_parts = array();
 520             foreach ($where_fields as $_where => $_value) {
 521                 $where_parts[] = PMA_backquote($_where) . ' = \''
 522                     . PMA_sqlAddslashes($_value) . '\'';
 523             }
 524
 525             $new_parts = array();
 526             $new_value_parts = array();
 527             foreach ($new_fields as $_where => $_value) {
 528                 $new_parts[] = PMA_backquote($_where);
 529                 $new_value_parts[] = PMA_sqlAddslashes($_value);
 530             }
 531
 532             $table_copy_query = '
 533                 SELECT ' . implode(', ', $select_parts) . '
 534                   FROM ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
 535                   . PMA_backquote($GLOBALS['cfgRelation'][$pma_table]) . '
 536                  WHERE ' . implode(' AND ', $where_parts);
 537
 538             // must use PMA_DBI_QUERY_STORE here, since we execute another
 539             // query inside the loop
 540             $table_copy_rs    = PMA_query_as_cu($table_copy_query, true,
 541                 PMA_DBI_QUERY_STORE);
 542
 543             while ($table_copy_row = @PMA_DBI_fetch_assoc($table_copy_rs)) {
 544                 $value_parts = array();
 545                 foreach ($table_copy_row as $_key => $_val) {
 546                     if (isset($row_fields[$_key]) && $row_fields[$_key] == 'cc') {
 547                         $value_parts[] = PMA_sqlAddslashes($_val);
 548                     }
 549                 }
 550
 551                 $new_table_query = '
 552                     INSERT IGNORE INTO ' . PMA_backquote($GLOBALS['cfgRelation']['db'])
 553                         . '.' . PMA_backquote($GLOBALS['cfgRelation'][$pma_table]) . '
 554                     (' . implode(', ', $select_parts) . ',
 555                      ' . implode(', ', $new_parts) . ')
 556                     VALUES
 557                     (\'' . implode('\', \'', $value_parts) . '\',
 558                      \'' . implode('\', \'', $new_value_parts) . '\')';
 559
 560                 PMA_query_as_cu($new_table_query);
 561                 $last_id = PMA_DBI_insert_id();
 562             } // end while
 563
 564             PMA_DBI_free_result($table_copy_rs);
 565
 566             return $last_id;
 567         }
 568
 569         return true;
 570     } // end of 'PMA_Table::duplicateInfo()' function
 571
 572
 573     /**
 574      * Copies or renames table
 575      * @todo use RENAME for move operations
 576      *        - would work only if the databases are on the same filesystem,
 577      *          how can we check that? try the operation and
 578      *          catch an error?
 579      *        - for views, only if MYSQL > 50013
 580      *        - still have to handle pmadb synch.
 581      *
 582      * @author          Michal Cihar <michal@cihar.com>
 583      */
 584     static public function moveCopy($source_db, $source_table, $target_db, $target_table, $what, $move, $mode)
 585     {
 586         global $err_url;
 587
 588         // set export settings we need
 589         $GLOBALS['sql_backquotes'] = 1;
 590         $GLOBALS['asfile']         = 1;
 591
 592         // Ensure the target is valid
 593         if (! $GLOBALS['pma']->databases->exists($source_db, $target_db)) {
 594             if (! $GLOBALS['pma']->databases->exists($source_db)) {
 595                 $GLOBALS['message'] = PMA_Message::rawError('source database `'
 596                     . htmlspecialchars($source_db) . '` not found');
 597             }
 598             if (! $GLOBALS['pma']->databases->exists($target_db)) {
 599                 $GLOBALS['message'] = PMA_Message::rawError('target database `'
 600                     . htmlspecialchars($target_db) . '` not found');
 601             }
 602             return false;
 603         }
 604
 605         $source = PMA_backquote($source_db) . '.' . PMA_backquote($source_table);
 606         if (! isset($target_db) || ! strlen($target_db)) {
 607             $target_db = $source_db;
 608         }
 609
 610         // Doing a select_db could avoid some problems with replicated databases,
 611         // when moving table from replicated one to not replicated one
 612         PMA_DBI_select_db($target_db);
 613
 614         $target = PMA_backquote($target_db) . '.' . PMA_backquote($target_table);
 615
 616         // do not create the table if dataonly
 617         if ($what != 'dataonly') {
 618             require_once './libraries/export/sql.php';
 619
 620             $no_constraints_comments = true;
 621             $GLOBALS['sql_constraints_query'] = '';
 622
 623             $sql_structure = PMA_getTableDef($source_db, $source_table, "\n", $err_url, false, false);
 624             unset($no_constraints_comments);
 625             $parsed_sql =  PMA_SQP_parse($sql_structure);
 626             $analyzed_sql = PMA_SQP_analyze($parsed_sql);
 627             $i = 0;
 628             if (empty($analyzed_sql[0]['create_table_fields'])) {
 629             // this is not a CREATE TABLE, so find the first VIEW
 630                 $target_for_view = PMA_backquote($target_db);
 631                 while (true) {
 632                 if ($parsed_sql[$i]['type'] == 'alpha_reservedWord' && $parsed_sql[$i]['data'] == 'VIEW') {
 633                         break;
 634                     }
 635                     $i++;
 636                 }
 637             }
 638             unset($analyzed_sql);
 639             $server_sql_mode = PMA_DBI_fetch_value("SHOW VARIABLES LIKE 'sql_mode'", 0, 1);
 640             if ('ANSI_QUOTES' == $server_sql_mode) {
 641                 $table_delimiter = 'quote_double';
 642             } else {
 643                 $table_delimiter = 'quote_backtick';
 644             }
 645             unset($server_sql_mode);
 646
 647             /* nijel: Find table name in query and replace it */
 648             while ($parsed_sql[$i]['type'] != $table_delimiter) {
 649                 $i++;
 650             }
 651
 652             /* no need to PMA_backquote() */
 653             if (isset($target_for_view)) {
 654                 // this a view definition; we just found the first db name
 655                 // that follows DEFINER VIEW
 656                 // so change it for the new db name
 657                         $parsed_sql[$i]['data'] = $target_for_view;
 658                 // then we have to find all references to the source db
 659                 // and change them to the target db, ensuring we stay into
 660                 // the $parsed_sql limits
 661                 $last = $parsed_sql['len'] - 1;
 662                 $backquoted_source_db = PMA_backquote($source_db);
 663                 for (++$i; $i <= $last; $i++) {
 664                             if ($parsed_sql[$i]['type'] == $table_delimiter && $parsed_sql[$i]['data'] == $backquoted_source_db) {
 665                                 $parsed_sql[$i]['data'] = $target_for_view;
 666                     }
 667                 }
 668                 unset($last,$backquoted_source_db);
 669             } else {
 670                 $parsed_sql[$i]['data'] = $target;
 671             }
 672
 673             /* Generate query back */
 674             $sql_structure = PMA_SQP_formatHtml($parsed_sql, 'query_only');
 675             // If table exists, and 'add drop table' is selected: Drop it!
 676             $drop_query = '';
 677             if (isset($GLOBALS['drop_if_exists'])
 678               && $GLOBALS['drop_if_exists'] == 'true') {
 679                 if (PMA_Table::_isView($target_db,$target_table)) {
 680                     $drop_query = 'DROP VIEW';
 681                 } else {
 682                     $drop_query = 'DROP TABLE';
 683                 }
 684                 $drop_query .= ' IF EXISTS '
 685                     . PMA_backquote($target_db) . '.'
 686                     . PMA_backquote($target_table);
 687                 PMA_DBI_query($drop_query);
 688
 689                 $GLOBALS['sql_query'] .= "\n" . $drop_query . ';';
 690
 691                 // garvin: If an existing table gets deleted, maintain any
 692                 // entries for the PMA_* tables
 693                 $maintain_relations = true;
 694             }
 695
 696             @PMA_DBI_query($sql_structure);
 697             $GLOBALS['sql_query'] .= "\n" . $sql_structure . ';';
 698
 699             if (($move || isset($GLOBALS['add_constraints']))
 700               && !empty($GLOBALS['sql_constraints_query'])) {
 701                 $parsed_sql =  PMA_SQP_parse($GLOBALS['sql_constraints_query']);
 702                 $i = 0;
 703
 704                 // find the first $table_delimiter, it must be the source table name
 705                 while ($parsed_sql[$i]['type'] != $table_delimiter) {
 706                     $i++;
 707                     // maybe someday we should guard against going over limit
 708                     //if ($i == $parsed_sql['len']) {
 709                     //    break;
 710                     //}
 711                 }
 712
 713                 // replace it by the target table name, no need to PMA_backquote()
 714                 $parsed_sql[$i]['data'] = $target;
 715
 716                 // now we must remove all $table_delimiter that follow a CONSTRAINT
 717                 // keyword, because a constraint name must be unique in a db
 718
 719                 $cnt = $parsed_sql['len'] - 1;
 720
 721                 for ($j = $i; $j < $cnt; $j++) {
 722                     if ($parsed_sql[$j]['type'] == 'alpha_reservedWord'
 723                       && strtoupper($parsed_sql[$j]['data']) == 'CONSTRAINT') {
 724                         if ($parsed_sql[$j+1]['type'] == $table_delimiter) {
 725                             $parsed_sql[$j+1]['data'] = '';
 726                         }
 727                     }
 728                 }
 729
 730                 // Generate query back
 731                 $GLOBALS['sql_constraints_query'] = PMA_SQP_formatHtml($parsed_sql,
 732                     'query_only');
 733                 if ($mode == 'one_table') {
 734                     PMA_DBI_query($GLOBALS['sql_constraints_query']);
 735                 }
 736                 $GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_constraints_query'];
 737                 if ($mode == 'one_table') {
 738                     unset($GLOBALS['sql_constraints_query']);
 739                 }
 740             }
 741         } else {
 742             $GLOBALS['sql_query'] = '';
 743         }
 744
 745         // Copy the data unless this is a VIEW
 746         if (($what == 'data' || $what == 'dataonly') && ! PMA_Table::_isView($target_db,$target_table)) {
 747             $sql_insert_data =
 748                 'INSERT INTO ' . $target . ' SELECT * FROM ' . $source;
 749             PMA_DBI_query($sql_insert_data);
 750             $GLOBALS['sql_query']      .= "\n\n" . $sql_insert_data . ';';
 751         }
 752
 753         require_once './libraries/relation.lib.php';
 754         $GLOBALS['cfgRelation'] = PMA_getRelationsParam();
 755
 756         // Drops old table if the user has requested to move it
 757         if ($move) {
 758
 759             // This could avoid some problems with replicated databases, when
 760             // moving table from replicated one to not replicated one
 761             PMA_DBI_select_db($source_db);
 762
 763             if (PMA_Table::_isView($source_db,$source_table)) {
 764                 $sql_drop_query = 'DROP VIEW';
 765             } else {
 766                 $sql_drop_query = 'DROP TABLE';
 767             }
 768             $sql_drop_query .= ' ' . $source;
 769             PMA_DBI_query($sql_drop_query);
 770
 771             // garvin: Move old entries from PMA-DBs to new table
 772             if ($GLOBALS['cfgRelation']['commwork']) {
 773                 $remove_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['column_info'])
 774                               . ' SET     table_name = \'' . PMA_sqlAddslashes($target_table) . '\', '
 775                               . '        db_name    = \'' . PMA_sqlAddslashes($target_db) . '\''
 776                               . ' WHERE db_name  = \'' . PMA_sqlAddslashes($source_db) . '\''
 777                               . ' AND table_name = \'' . PMA_sqlAddslashes($source_table) . '\'';
 778                 PMA_query_as_cu($remove_query);
 779                 unset($remove_query);
 780             }
 781
 782             // garvin: updating bookmarks is not possible since only a single table is moved,
 783             // and not the whole DB.
 784
 785             if ($GLOBALS['cfgRelation']['displaywork']) {
 786                 $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['table_info'])
 787                                 . ' SET     db_name = \'' . PMA_sqlAddslashes($target_db) . '\', '
 788                                 . '         table_name = \'' . PMA_sqlAddslashes($target_table) . '\''
 789                                 . ' WHERE db_name  = \'' . PMA_sqlAddslashes($source_db) . '\''
 790                                 . ' AND table_name = \'' . PMA_sqlAddslashes($source_table) . '\'';
 791                 PMA_query_as_cu($table_query);
 792                 unset($table_query);
 793             }
 794
 795             if ($GLOBALS['cfgRelation']['relwork']) {
 796                 $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['relation'])
 797                                 . ' SET     foreign_table = \'' . PMA_sqlAddslashes($target_table) . '\','
 798                                 . '         foreign_db = \'' . PMA_sqlAddslashes($target_db) . '\''
 799                                 . ' WHERE foreign_db  = \'' . PMA_sqlAddslashes($source_db) . '\''
 800                                 . ' AND foreign_table = \'' . PMA_sqlAddslashes($source_table) . '\'';
 801                 PMA_query_as_cu($table_query);
 802                 unset($table_query);
 803
 804                 $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['relation'])
 805                                 . ' SET     master_table = \'' . PMA_sqlAddslashes($target_table) . '\','
 806                                 . '         master_db = \'' . PMA_sqlAddslashes($target_db) . '\''
 807                                 . ' WHERE master_db  = \'' . PMA_sqlAddslashes($source_db) . '\''
 808                                 . ' AND master_table = \'' . PMA_sqlAddslashes($source_table) . '\'';
 809                 PMA_query_as_cu($table_query);
 810                 unset($table_query);
 811             }
 812
 813             /**
 814              * @todo garvin: Can't get moving PDFs the right way. The page numbers
 815              * always get screwed up independently from duplication because the
 816              * numbers do not seem to be stored on a per-database basis. Would
 817              * the author of pdf support please have a look at it?
 818              */
 819
 820             if ($GLOBALS['cfgRelation']['pdfwork']) {
 821                 $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['table_coords'])
 822                                 . ' SET     table_name = \'' . PMA_sqlAddslashes($target_table) . '\','
 823                                 . '         db_name = \'' . PMA_sqlAddslashes($target_db) . '\''
 824                                 . ' WHERE db_name  = \'' . PMA_sqlAddslashes($source_db) . '\''
 825                                 . ' AND table_name = \'' . PMA_sqlAddslashes($source_table) . '\'';
 826                 PMA_query_as_cu($table_query);
 827                 unset($table_query);
 828                 /*
 829                 $pdf_query = 'SELECT pdf_page_number '
 830                            . ' FROM ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['table_coords'])
 831                            . ' WHERE db_name  = \'' . PMA_sqlAddslashes($target_db) . '\''
 832                            . ' AND table_name = \'' . PMA_sqlAddslashes($target_table) . '\'';
 833                 $pdf_rs = PMA_query_as_cu($pdf_query);
 834
 835                 while ($pdf_copy_row = PMA_DBI_fetch_assoc($pdf_rs)) {
 836                     $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['pdf_pages'])
 837                                     . ' SET     db_name = \'' . PMA_sqlAddslashes($target_db) . '\''
 838                                     . ' WHERE db_name  = \'' . PMA_sqlAddslashes($source_db) . '\''
 839                                     . ' AND page_nr = \'' . PMA_sqlAddslashes($pdf_copy_row['pdf_page_number']) . '\'';
 840                     $tb_rs    = PMA_query_as_cu($table_query);
 841                     unset($table_query);
 842                     unset($tb_rs);
 843                 }
 844                 */
 845             }
 846
 847             if ($GLOBALS['cfgRelation']['designerwork']) {
 848                 $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['designer_coords'])
 849                                 . ' SET     table_name = \'' . PMA_sqlAddslashes($target_table) . '\','
 850                                 . '         db_name = \'' . PMA_sqlAddslashes($target_db) . '\''
 851                                 . ' WHERE db_name  = \'' . PMA_sqlAddslashes($source_db) . '\''
 852                                 . ' AND table_name = \'' . PMA_sqlAddslashes($source_table) . '\'';
 853                 PMA_query_as_cu($table_query);
 854                 unset($table_query);
 855             }
 856
 857             $GLOBALS['sql_query']      .= "\n\n" . $sql_drop_query . ';';
 858         // end if ($move)
 859         } else {
 860             // we are copying
 861             // garvin: Create new entries as duplicates from old PMA DBs
 862             if ($what != 'dataonly' && !isset($maintain_relations)) {
 863                 if ($GLOBALS['cfgRelation']['commwork']) {
 864                     // Get all comments and MIME-Types for current table
 865                     $comments_copy_query = 'SELECT
 866                                                 column_name, ' . PMA_backquote('comment') . ($GLOBALS['cfgRelation']['mimework'] ? ', mimetype, transformation, transformation_options' : '') . '
 867                                             FROM ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['column_info']) . '
 868                                             WHERE
 869                                                 db_name = \'' . PMA_sqlAddslashes($source_db) . '\' AND
 870                                                 table_name = \'' . PMA_sqlAddslashes($source_table) . '\'';
 871                     $comments_copy_rs    = PMA_query_as_cu($comments_copy_query);
 872
 873                     // Write every comment as new copied entry. [MIME]
 874                     while ($comments_copy_row = PMA_DBI_fetch_assoc($comments_copy_rs)) {
 875                         $new_comment_query = 'REPLACE INTO ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($GLOBALS['cfgRelation']['column_info'])
 876                                     . ' (db_name, table_name, column_name, ' . PMA_backquote('comment') . ($GLOBALS['cfgRelation']['mimework'] ? ', mimetype, transformation, transformation_options' : '') . ') '
 877                                     . ' VALUES('
 878                                     . '\'' . PMA_sqlAddslashes($target_db) . '\','
 879                                     . '\'' . PMA_sqlAddslashes($target_table) . '\','
 880                                     . '\'' . PMA_sqlAddslashes($comments_copy_row['column_name']) . '\''
 881                                     . ($GLOBALS['cfgRelation']['mimework'] ? ',\'' . PMA_sqlAddslashes($comments_copy_row['comment']) . '\','
 882                                             . '\'' . PMA_sqlAddslashes($comments_copy_row['mimetype']) . '\','
 883                                             . '\'' . PMA_sqlAddslashes($comments_copy_row['transformation']) . '\','
 884                                             . '\'' . PMA_sqlAddslashes($comments_copy_row['transformation_options']) . '\'' : '')
 885                                     . ')';
 886                         PMA_query_as_cu($new_comment_query);
 887                     } // end while
 888                     PMA_DBI_free_result($comments_copy_rs);
 889                     unset($comments_copy_rs);
 890                 }
 891
 892                 // duplicating the bookmarks must not be done here, but
 893                 // just once per db
 894
 895                 $get_fields = array('display_field');
 896                 $where_fields = array('db_name' => $source_db, 'table_name' => $source_table);
 897                 $new_fields = array('db_name' => $target_db, 'table_name' => $target_table);
 898                 PMA_Table::duplicateInfo('displaywork', 'table_info', $get_fields, $where_fields, $new_fields);
 899
 900
 901                 /**
 902                  * @todo revise this code when we support cross-db relations
 903                  */
 904                 $get_fields = array('master_field', 'foreign_table', 'foreign_field');
 905                 $where_fields = array('master_db' => $source_db, 'master_table' => $source_table);
 906                 $new_fields = array('master_db' => $target_db, 'foreign_db' => $target_db, 'master_table' => $target_table);
 907                 PMA_Table::duplicateInfo('relwork', 'relation', $get_fields, $where_fields, $new_fields);
 908
 909
 910                 $get_fields = array('foreign_field', 'master_table', 'master_field');
 911                 $where_fields = array('foreign_db' => $source_db, 'foreign_table' => $source_table);
 912                 $new_fields = array('master_db' => $target_db, 'foreign_db' => $target_db, 'foreign_table' => $target_table);
 913                 PMA_Table::duplicateInfo('relwork', 'relation', $get_fields, $where_fields, $new_fields);
 914
 915
 916                 $get_fields = array('x', 'y', 'v', 'h');
 917                 $where_fields = array('db_name' => $source_db, 'table_name' => $source_table);
 918                 $new_fields = array('db_name' => $target_db, 'table_name' => $target_table);
 919                 PMA_Table::duplicateInfo('designerwork', 'designer_coords', $get_fields, $where_fields, $new_fields);
 920
 921                 /**
 922                  * @todo garvin: Can't get duplicating PDFs the right way. The
 923                  * page numbers always get screwed up independently from
 924                  * duplication because the numbers do not seem to be stored on a
 925                  * per-database basis. Would the author of pdf support please
 926                  * have a look at it?
 927                  *
 928                 $get_fields = array('page_descr');
 929                 $where_fields = array('db_name' => $source_db);
 930                 $new_fields = array('db_name' => $target_db);
 931                 $last_id = PMA_Table::duplicateInfo('pdfwork', 'pdf_pages', $get_fields, $where_fields, $new_fields);
 932
 933                 if (isset($last_id) && $last_id >= 0) {
 934                     $get_fields = array('x', 'y');
 935                     $where_fields = array('db_name' => $source_db, 'table_name' => $source_table);
 936                     $new_fields = array('db_name' => $target_db, 'table_name' => $target_table, 'pdf_page_number' => $last_id);
 937                     PMA_Table::duplicateInfo('pdfwork', 'table_coords', $get_fields, $where_fields, $new_fields);
 938                 }
 939                  */
 940             }
 941         }
 942         return true;
 943     }
 944
 945     /**
 946      * checks if given name is a valid table name,
 947      * currently if not empty, trailing spaces, '.', '/' and '\'
 948      *
 949      * @todo    add check for valid chars in filename on current system/os
 950      * @see     http://dev.mysql.com/doc/refman/5.0/en/legal-names.html
 951      * @param   string  $table_name name to check
 952      * @return  boolean whether the string is valid or not
 953      */
 954     function isValidName($table_name)
 955     {
 956         if ($table_name !== trim($table_name)) {
 957             // trailing spaces
 958             return false;
 959         }
 960
 961         if (! strlen($table_name)) {
 962             // zero length
 963             return false;
 964         }
 965
 966         if (preg_match('/[.\/\\\\]+/i', $table_name)) {
 967             // illegal char . / \
 968             return false;
 969         }
 970
 971         return true;
 972     }
 973
 974     /**
 975      * renames table
 976      *
 977      * @param   string  new table name
 978      * @param   string  new database name
 979      * @return  boolean success
 980      */
 981     function rename($new_name, $new_db = null)
 982     {
 983         if (null !== $new_db && $new_db !== $this->getDbName()) {
 984             // Ensure the target is valid
 985             if (! $GLOBALS['pma']->databases->exists($new_db)) {
 986                 $this->errors[] = $GLOBALS['strInvalidDatabase'] . ': ' . $new_db;
 987                 return false;
 988             }
 989         } else {
 990             $new_db = $this->getDbName();
 991         }
 992
 993         $new_table = new PMA_Table($new_name, $new_db);
 994
 995         if ($this->getFullName() === $new_table->getFullName()) {
 996             return true;
 997         }
 998
 999         if (! PMA_Table::isValidName($new_name)) {
1000             $this->errors[] = $GLOBALS['strInvalidTableName'] . ': ' . $new_table->getFullName();
1001             return false;
1002         }
1003
1004         $GLOBALS['sql_query'] = '
1005             RENAME TABLE ' . $this->getFullName(true) . '
1006                       TO ' . $new_table->getFullName(true) . ';';
1007         if (! PMA_DBI_query($GLOBALS['sql_query'])) {
1008             $this->errors[] = sprintf($GLOBALS['strErrorRenamingTable'], $this->getFullName(), $new_table->getFullName());
1009             return false;
1010         }
1011
1012         $old_name = $this->getName();
1013         $old_db = $this->getDbName();
1014         $this->setName($new_name);
1015         $this->setDbName($new_db);
1016
1017         /**
1018          * @todo move into extra function PMA_Relation::renameTable($new_name, $old_name, $new_db, $old_db)
1019          */
1020         // garvin: Move old entries from comments to new table
1021         require_once './libraries/relation.lib.php';
1022         $GLOBALS['cfgRelation'] = PMA_getRelationsParam();
1023         if ($GLOBALS['cfgRelation']['commwork']) {
1024             $remove_query = '
1025                 UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
1026                     . PMA_backquote($GLOBALS['cfgRelation']['column_info']) . '
1027                    SET `db_name`    = \'' . PMA_sqlAddslashes($new_db) . '\',
1028                        `table_name` = \'' . PMA_sqlAddslashes($new_name) . '\'
1029                  WHERE `db_name`    = \'' . PMA_sqlAddslashes($old_db) . '\'
1030                    AND `table_name` = \'' . PMA_sqlAddslashes($old_name) . '\'';
1031             PMA_query_as_cu($remove_query);
1032             unset($remove_query);
1033         }
1034
1035         if ($GLOBALS['cfgRelation']['displaywork']) {
1036             $table_query = '
1037                 UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
1038                     . PMA_backquote($GLOBALS['cfgRelation']['table_info']) . '
1039                    SET `db_name`    = \'' . PMA_sqlAddslashes($new_db) . '\',
1040                        `table_name` = \'' . PMA_sqlAddslashes($new_name) . '\'
1041                  WHERE `db_name`    = \'' . PMA_sqlAddslashes($old_db) . '\'
1042                    AND `table_name` = \'' . PMA_sqlAddslashes($old_name) . '\'';
1043             PMA_query_as_cu($table_query);
1044             unset($table_query);
1045         }
1046
1047         if ($GLOBALS['cfgRelation']['relwork']) {
1048             $table_query = '
1049                 UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
1050                     . PMA_backquote($GLOBALS['cfgRelation']['relation']) . '
1051                    SET `foreign_db`    = \'' . PMA_sqlAddslashes($new_db) . '\',
1052                        `foreign_table` = \'' . PMA_sqlAddslashes($new_name) . '\'
1053                  WHERE `foreign_db`    = \'' . PMA_sqlAddslashes($old_db) . '\'
1054                    AND `foreign_table` = \'' . PMA_sqlAddslashes($old_name) . '\'';
1055             PMA_query_as_cu($table_query);
1056
1057             $table_query = '
1058                 UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
1059                     . PMA_backquote($GLOBALS['cfgRelation']['relation']) . '
1060                    SET `master_db`    = \'' . PMA_sqlAddslashes($new_db) . '\',
1061                        `master_table` = \'' . PMA_sqlAddslashes($new_name) . '\'
1062                  WHERE `master_db`    = \'' . PMA_sqlAddslashes($old_db) . '\'
1063                    AND `master_table` = \'' . PMA_sqlAddslashes($old_name) . '\'';
1064             PMA_query_as_cu($table_query);
1065             unset($table_query);
1066         }
1067
1068         if ($GLOBALS['cfgRelation']['pdfwork']) {
1069             $table_query = '
1070                 UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
1071                     . PMA_backquote($GLOBALS['cfgRelation']['table_coords']) . '
1072                    SET `db_name`    = \'' . PMA_sqlAddslashes($new_db) . '\',
1073                        `table_name` = \'' . PMA_sqlAddslashes($new_name) . '\'
1074                  WHERE `db_name`    = \'' . PMA_sqlAddslashes($old_db) . '\'
1075                    AND `table_name` = \'' . PMA_sqlAddslashes($old_name) . '\'';
1076             PMA_query_as_cu($table_query);
1077             unset($table_query);
1078         }
1079
1080         if ($GLOBALS['cfgRelation']['designerwork']) {
1081             $table_query = '
1082                 UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.'
1083                     . PMA_backquote($GLOBALS['cfgRelation']['designer_coords']) . '
1084                    SET `db_name`    = \'' . PMA_sqlAddslashes($new_db) . '\',
1085                        `table_name` = \'' . PMA_sqlAddslashes($new_name) . '\'
1086                  WHERE `db_name`    = \'' . PMA_sqlAddslashes($old_db) . '\'
1087                    AND `table_name` = \'' . PMA_sqlAddslashes($old_name) . '\'';
1088             PMA_query_as_cu($table_query);
1089             unset($table_query);
1090         }
1091
1092         $this->messages[] = sprintf($GLOBALS['strRenameTableOK'],
1093             htmlspecialchars($old_name), htmlspecialchars($new_name));
1094         return true;
1095     }
1096
1097     /**
1098      * Get all unique columns
1099      *
1100      * returns an array with all columns with unqiue content, in fact these are
1101      * all columns being single indexed in PRIMARY or UNIQUE
1102      *
1103      * f.e.
1104      *  - PRIMARY(id) // id
1105      *  - UNIQUE(name) // name
1106      *  - PRIMARY(fk_id1, fk_id2) // NONE
1107      *  - UNIQUE(x,y) // NONE
1108      *
1109      *
1110      * @param   boolean whether to quote name with backticks ``
1111      * @return array
1112      */
1113     public function getUniqueColumns($quoted = true)
1114     {
1115         $sql = 'SHOW INDEX FROM ' . $this->getFullName(true) . ' WHERE Non_unique = 0';
1116         $uniques = PMA_DBI_fetch_result($sql, array('Key_name', null), 'Column_name');
1117
1118         $return = array();
1119         foreach ($uniques as $index) {
1120             if (count($index) > 1) {
1121                 continue;
1122             }
1123             $return[] = $this->getFullName($quoted) . '.' . ($quoted ? PMA_backquote($index[0]) : $index[0]);
1124         }
1125
1126         return $return;
1127     }
1128
1129     /**
1130      * Get all indexed columns
1131      *
1132      * returns an array with all columns make use of an index, in fact only
1133      * first columns in an index
1134      *
1135      * f.e. index(col1, col2) would only return col1
1136      * @param   boolean whether to quote name with backticks ``
1137      * @return array
1138      */
1139     public function getIndexedColumns($quoted = true)
1140     {
1141         $sql = 'SHOW INDEX FROM ' . $this->getFullName(true) . ' WHERE Seq_in_index = 1';
1142         $indexed = PMA_DBI_fetch_result($sql, 'Column_name', 'Column_name');
1143
1144         $return = array();
1145         foreach ($indexed as $column) {
1146             $return[] = $this->getFullName($quoted) . '.' . ($quoted ? PMA_backquote($column) : $column);
1147         }
1148
1149         return $return;
1150     }
1151 }
1152 ?>