b8df10e41e
compatibility and bandwidth saving. Memory issues by caching should not arise, as the used cache will (in our previously used cases) only cache index fields and max. 200 relation rows. I tested performance on my machine: By fetching 400kb of data twice via mysql_fetch_row() -> mysql_data_seek() -> mysql_fetch_row() this was performed in 0.25 seconds. By fetching it once and caching in a PHP array via mysql_fetch_row -> foreach this is performed in 0.32 seconds. With usual data as used in PMA (10kb) I could only detect a performance change of 0.009 seconds, which is respectable I think. By not using mysql_data_seek we are later able to use global mysqli USE_RESULT options to fetch rows singly. I discussed that yesterday with Rabus, and if there are any objections we can surely discuss that further on the list.
506 lines
20 KiB
PHP
506 lines
20 KiB
PHP
<?php
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/* $Id$ */
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// vim: expandtab sw=4 ts=4 sts=4:
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/**
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* Gets some core libraries
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*/
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require_once('./libraries/grab_globals.lib.php');
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require_once('./libraries/common.lib.php');
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/**
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* Defines the index types ("FULLTEXT" is available since MySQL 3.23.23)
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*/
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$index_types_cnt = 4;
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$index_types = array(
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'PRIMARY',
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'INDEX',
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'UNIQUE',
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'FULLTEXT'
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);
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/**
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* Ensures the db & table are valid, then loads headers and gets indexes
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* informations.
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* Skipped if this script is called by "tbl_properties.php"
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*/
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if (!defined('PMA_IDX_INCLUDED')) {
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// Not a valid db name -> back to the welcome page
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if (!empty($db)) {
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$is_db = PMA_DBI_select_db($db);
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}
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if (empty($db) || !$is_db) {
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header('Location: ' . $cfg['PmaAbsoluteUri'] . 'main.php?' . PMA_generate_common_url('', '', '&') . (isset($message) ? '&message=' . urlencode($message) : '') . '&reload=1');
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exit;
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}
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// Not a valid table name -> back to the default db_details sub-page
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if (!empty($table)) {
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$is_table = PMA_DBI_query('SHOW TABLES LIKE \'' . PMA_sqlAddslashes($table, TRUE) . '\'');
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}
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if (empty($table)
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|| !($is_table && PMA_DBI_num_rows($is_table))) {
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header('Location: ' . $cfg['PmaAbsoluteUri'] . $cfg['DefaultTabDatabase'] . '?' . PMA_generate_common_url($db, '', '&') . (isset($message) ? '&message=' . urlencode($message) : '') . '&reload=1');
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exit;
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} else if (isset($is_table)) {
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PMA_DBI_free_result($is_table);
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}
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// Displays headers (if needed)
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$js_to_run = ((isset($index) && isset($do_save_data)) ? 'functions.js' : 'indexes.js');
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require_once('./header.inc.php');
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} // end if
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/**
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* Gets fields and indexes informations
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*/
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if (defined('PMA_IDX_INCLUDED')) {
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$err_url_0 = 'db_details.php?' . PMA_generate_common_url($db);
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}
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// Gets table keys and store them in arrays
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$indexes = array();
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$prev_index = '';
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$indexes_info = array();
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$indexes_data = array();
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// keys had already been grabbed in "tbl_properties.php"
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if (defined('PMA_IDX_INCLUDED')) {
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$idx_cnt = count($ret_keys);
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} else {
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$local_query = 'SHOW KEYS FROM ' . PMA_backquote($table);
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$result = PMA_DBI_query($local_query) or PMA_mysqlDie('', $local_query, '', $err_url_0);
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$idx_cnt = PMA_DBI_num_rows($result);
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}
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for ($i = 0; $i < $idx_cnt; $i++) {
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$row = (defined('PMA_IDX_INCLUDED') ? $ret_keys[$i] : PMA_DBI_fetch_assoc($result));
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if ($row['Key_name'] != $prev_index ){
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$indexes[] = $row['Key_name'];
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$prev_index = $row['Key_name'];
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}
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$indexes_info[$row['Key_name']]['Sequences'][] = $row['Seq_in_index'];
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$indexes_info[$row['Key_name']]['Non_unique'] = $row['Non_unique'];
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if (isset($row['Cardinality'])) {
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$indexes_info[$row['Key_name']]['Cardinality'] = $row['Cardinality'];
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}
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// I don't know what does following column mean....
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// $indexes_info[$row['Key_name']]['Packed'] = $row['Packed'];
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$indexes_info[$row['Key_name']]['Comment'] = (isset($row['Comment']))
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? $row['Comment']
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: '';
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$indexes_info[$row['Key_name']]['Index_type'] = (isset($row['Index_type']))
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? $row['Index_type']
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: '';
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$indexes_data[$row['Key_name']][$row['Seq_in_index']]['Column_name'] = $row['Column_name'];
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if (isset($row['Sub_part'])) {
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$indexes_data[$row['Key_name']][$row['Seq_in_index']]['Sub_part'] = $row['Sub_part'];
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}
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} // end while
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if (defined('PMA_IDX_INCLUDED')) {
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unset($ret_keys);
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} else if ($result) {
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PMA_DBI_free_result($result);
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}
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// Get fields and stores their name/type
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// fields had already been grabbed in "tbl_properties.php"
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if (!defined('PMA_IDX_INCLUDED')) {
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$fields_rs = PMA_DBI_query('SHOW FIELDS FROM ' . PMA_backquote($table) . ';');
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$fields_cnt = PMA_DBI_num_rows($fields_rs);
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$save_row = array();
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while ($row = PMA_DBI_fetch_assoc($fields_rs)) {
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$save_row[] = $row;
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}
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}
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$fields_names = array();
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$fields_types = array();
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foreach($save_row AS $saved_row_key => $row) {
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$fields_names[] = $row['Field'];
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// loic1: set or enum types: slashes single quotes inside options
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if (preg_match('@^(set|enum)\((.+)\)$@i', $row['Type'], $tmp)) {
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$tmp[2] = substr(preg_replace('@([^,])\'\'@', '\\1\\\'', ',' . $tmp[2]), 1);
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$fields_types[] = $tmp[1] . '(' . str_replace(',', ', ', $tmp[2]) . ')';
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} else {
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$fields_types[] = $row['Type'];
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}
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} // end while
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if ($fields_rs) {
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PMA_DBI_free_result($fields_rs);
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}
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/**
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* Do run the query to build the new index and moves back to
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* "tbl_properties.php"
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*/
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if (!defined('PMA_IDX_INCLUDED')
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&& (isset($index) && isset($do_save_data))) {
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$err_url = 'tbl_indexes.php?' . PMA_generate_common_url($db, $table);
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if (empty($old_index)) {
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$err_url .= '&create_index=1&idx_num_fields=' . $idx_num_fields;
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} else {
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$err_url .= '&index=' . urlencode($old_index);
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}
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if ($index_type == 'PRIMARY') {
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if ($index == '') {
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$index = 'PRIMARY';
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} else if ($index != 'PRIMARY') {
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PMA_mysqlDie($strPrimaryKeyName, '', FALSE, $err_url);
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}
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} else if ($index == 'PRIMARY') {
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PMA_mysqlDie($strCantRenameIdxToPrimary, '', FALSE, $err_url);
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}
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// $sql_query is the one displayed in the query box
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$sql_query = 'ALTER TABLE ' . PMA_backquote($table);
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// Drops the old index
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if (!empty($old_index)) {
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if ($old_index == 'PRIMARY') {
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$sql_query .= ' DROP PRIMARY KEY,';
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} else {
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$sql_query .= ' DROP INDEX ' . PMA_backquote($old_index) .',';
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}
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} // end if
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// Builds the new one
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switch ($index_type) {
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case 'PRIMARY':
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$sql_query .= ' ADD PRIMARY KEY (';
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break;
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case 'FULLTEXT':
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$sql_query .= ' ADD FULLTEXT ' . (empty($index) ? '' : PMA_backquote($index)) . ' (';
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break;
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case 'UNIQUE':
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$sql_query .= ' ADD UNIQUE ' . (empty($index) ? '' : PMA_backquote($index)) . ' (';
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break;
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case 'INDEX':
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$sql_query .= ' ADD INDEX ' . (empty($index) ? '' : PMA_backquote($index)) . ' (';
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break;
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} // end switch
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$index_fields = '';
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foreach($column AS $i => $name) {
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if ($name != '--ignore--') {
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$index_fields .= (empty($index_fields) ? '' : ',')
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. PMA_backquote($name)
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. (empty($sub_part[$i]) ? '' : '(' . $sub_part[$i] . ')');
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}
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} // end while
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if (empty($index_fields)){
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PMA_mysqlDie($strNoIndexPartsDefined, '', FALSE, $err_url);
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} else {
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$sql_query .= $index_fields . ')';
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}
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$result = PMA_DBI_query($sql_query);
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$message = $strTable . ' ' . htmlspecialchars($table) . ' ' . $strHasBeenAltered;
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$active_page = 'tbl_properties_structure.php';
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require('./tbl_properties_structure.php');
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} // end builds the new index
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/**
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* Edits an index or defines a new one
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*/
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else if (!defined('PMA_IDX_INCLUDED')
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&& (isset($index) || isset($create_index))) {
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// Prepares the form values
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if (!isset($index)) {
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$index = '';
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}
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if (!isset($old_index)){
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$old_index = $index;
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}
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if (!isset($index_type)) {
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$index_type = '';
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}
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if ($old_index == '' || !isset($indexes_info[$old_index])) {
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$edited_index_info['Sequences'] = array();
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$edited_index_data = array();
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for ($i = 1; $i <= $idx_num_fields; $i++) {
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$edited_index_info['Sequences'][] = $i;
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$edited_index_data[$i] = array('Column_name' => '', 'Sub_part' => '');
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} // end for
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if ($old_index == ''
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&& !isset($indexes_info['PRIMARY'])
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&& ($index_type == '' || $index_type == 'PRIMARY')) {
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$old_index = 'PRIMARY';
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}
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} else {
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$edited_index_info = $indexes_info[$old_index];
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$edited_index_data = $indexes_data[$old_index];
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if ((PMA_MYSQL_INT_VERSION < 40002 && $edited_index_info['Comment'] == 'FULLTEXT')
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|| (PMA_MYSQL_INT_VERSION >= 40002 && $edited_index_info['Index_type'] == 'FULLTEXT')) {
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$index_type = 'FULLTEXT';
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} else if ($index == 'PRIMARY') {
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$index_type = 'PRIMARY';
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} else if ($edited_index_info['Non_unique'] == '0') {
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$index_type = 'UNIQUE';
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} else {
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$index_type = 'INDEX';
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}
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} // end if... else...
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if (isset($add_fields)) {
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if (isset($prev_add_fields)) {
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$added_fields += $prev_add_fields;
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}
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$field_cnt = count($edited_index_info['Sequences']) + 1;
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for ($i = $field_cnt; $i < ($added_fields + $field_cnt); $i++) {
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$edited_index_info['Sequences'][] = $i;
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$edited_index_data[$i] = array('Column_name' => '', 'Sub_part' => '');
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} // end for
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// Restore entered values
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foreach($column AS $i => $name) {
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if ($name != '--ignore--'){
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$edited_index_data[$i+1]['Column_name'] = $name;
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$edited_index_data[$i+1]['Sub_part'] = $sub_part[$i];
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}
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} // end while
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} // end if
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// end preparing form values
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?>
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<!-- Build index form -->
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<form action="tbl_indexes.php" method="post" name="index_frm"
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onsubmit="if (typeof(this.elements['index'].disabled) != 'undefined') {this.elements['index'].disabled = false}">
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<?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
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<?php
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if (isset($create_index)) {
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echo '<input type="hidden" name="create_index" value="1" />';
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}
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echo "\n";
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?>
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<input type="hidden" name="old_index" value="<?php echo (isset($create_index) ? '' : htmlspecialchars($old_index)); ?>" />
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<b><?php echo '------ ' . (isset($create_index) ? $strCreateIndexTopic : $strModifyIndexTopic) . ' ------'; ?></b>
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<br /><br />
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<table border="0">
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<tr>
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<td><?php echo $strIndexName; ?> </td>
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<td>
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<input type="text" name="index" value="<?php echo htmlspecialchars($index); ?>" class="textfield" onfocus="this.select()" />
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<?php echo $strPrimaryKeyWarning . "\n"; ?>
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</td>
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</tr>
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<tr>
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<td><?php echo $strIndexType; ?> </td>
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<td>
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<select name="index_type" onchange="return checkIndexName()">
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<?php
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echo "\n";
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for ($i = 0; $i < $index_types_cnt; $i++) {
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if ($index_types[$i] == 'PRIMARY') {
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if ($index == 'PRIMARY' || !isset($indexes_info['PRIMARY'])) {
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echo ' '
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. '<option value="PRIMARY"' . (($index_type == 'PRIMARY') ? ' selected="selected"' : '') . '>PRIMARY</option>'
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. "\n";
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}
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} else {
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echo ' '
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. '<option value="' . $index_types[$i] . '"' . (($index_type == $index_types[$i]) ? ' selected="selected"' : '') . '>'. $index_types[$i] . '</option>'
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. "\n";
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} // end if... else...
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} // end for
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?>
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</select>
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<?php echo PMA_showMySQLDocu('Reference', 'ALTER_TABLE') . "\n"; ?>
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</td>
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</tr>
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</table><br />
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<table border="<?php echo $cfg['Border']; ?>" cellpadding="5">
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<tr>
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<th><?php echo $strField; ?></th>
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<th><?php echo $strSize; ?></th>
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</tr>
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<?php
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foreach($edited_index_info['Sequences'] AS $row_no => $seq_index) {
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$add_type = (is_array($fields_types) && count($fields_types) == count($fields_names));
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$selected = $edited_index_data[$seq_index]['Column_name'];
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if (!empty($edited_index_data[$seq_index]['Sub_part'])) {
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$sub_part = ' value="' . $edited_index_data[$seq_index]['Sub_part'] . '"';
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} else {
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$sub_part = '';
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}
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$bgcolor = (($row_no % 2) ? $cfg['BgcolorOne'] : $cfg['BgcolorTwo']);
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echo "\n";
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?>
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<tr>
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<td bgcolor="<?php echo $bgcolor; ?>">
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<select name="column[]">
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<option value="--ignore--"<?php if ('--ignore--' == $selected) echo ' selected="selected"'; ?>>
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-- <?php echo $strIgnore; ?> --</option>
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<?php
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foreach($fields_names AS $key => $val) {
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if ($index_type != 'FULLTEXT'
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|| preg_match('@^(varchar|text|tinytext|mediumtext|longtext)@i', $fields_types[$key])) {
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echo "\n" . ' '
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. '<option value="' . htmlspecialchars($val) . '"' . (($val == $selected) ? ' selected="selected"' : '') . '>'
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. htmlspecialchars($val) . (($add_type) ? ' [' . $fields_types[$key] . ']' : '' ) . '</option>' . "\n";
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}
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} // end while
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echo "\n";
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?>
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</select>
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</td>
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<td bgcolor="<?php echo $bgcolor; ?>">
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<input type="text" size="5" name="sub_part[]"<?php echo $sub_part; ?> onfocus="this.select()" />
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</td>
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</tr>
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<?php
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} // end while
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echo "\n";
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?>
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</table><br />
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<input type="submit" name="do_save_data" value="<?php echo $strSave; ?>" /><br />
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<?php
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echo "\n";
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if (isset($added_fields)) {
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echo ' <input type="hidden" name="prev_add_fields" value="' . $added_fields . '" />';
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}
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if (isset($idx_num_fields)) {
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echo ' <input type="hidden" name="idx_num_fields" value="' . $idx_num_fields . '" />' . "\n";
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}
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echo ' <hr /><br />' . "\n";
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echo ' ' . sprintf($strAddToIndex, '<input type="text" name="added_fields" size="4" value="1" class="textfield" onfocus="this.select()" />') . "\n";
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echo ' <input type="submit" name="add_fields" value="' . $strGo . '" onclick="return checkFormElementInRange(this.form, \'added_fields\', 1)" />' . "\n";
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} else {
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/**
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* Display indexes
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*/
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?>
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<!-- Indexes form -->
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<form action="tbl_indexes.php" method="post">
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<?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
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<?php
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echo "\n";
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echo ' ' . $strIndexes . ' :' . "\n";
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echo ' ' . PMA_showMySQLDocu('MySQL_Optimisation', 'Optimising_Database_Structure') . '<br />' ."\n";
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if ($idx_cnt > 0) {
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?>
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<table border="<?php echo $cfg['Border']; ?>">
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<tr>
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<th><?php echo $strKeyname; ?></th>
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<th><?php echo $strType; ?></th>
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<th><?php echo $strCardinality; ?></th>
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<th colspan="2"><?php echo $strAction; ?></th>
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<th colspan="2"><?php echo $strField; ?></th>
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</tr>
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<?php
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echo "\n";
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foreach($indexes AS $index_no => $index_name) {
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$cell_bgd = (($index_no % 2) ? $cfg['BgcolorOne'] : $cfg['BgcolorTwo']);
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$index_td = ' <td bgcolor="' . $cell_bgd . '" rowspan="' . count($indexes_info[$index_name]['Sequences']) . '">' . "\n";
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echo ' <tr>' . "\n";
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echo $index_td
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. ' ' . htmlspecialchars($index_name) . "\n"
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. ' </td>' . "\n";
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if ((PMA_MYSQL_INT_VERSION < 40002 && $indexes_info[$index_name]['Comment'] == 'FULLTEXT')
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|| (PMA_MYSQL_INT_VERSION >= 40002 && $indexes_info[$index_name]['Index_type'] == 'FULLTEXT')) {
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$index_type = 'FULLTEXT';
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} else if ($index_name == 'PRIMARY') {
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$index_type = 'PRIMARY';
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} else if ($indexes_info[$index_name]['Non_unique'] == '0') {
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$index_type = 'UNIQUE';
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} else {
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$index_type = 'INDEX';
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}
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echo $index_td
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. ' ' . $index_type . "\n"
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. ' </td>' . "\n";
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echo str_replace('">' . "\n", '" align="right">' . "\n", $index_td)
|
|
. ' ' . (isset($indexes_info[$index_name]['Cardinality']) ? $indexes_info[$index_name]['Cardinality'] : $strNone) . ' ' . "\n"
|
|
. ' </td>' . "\n";
|
|
|
|
echo $index_td
|
|
. ' <a href="tbl_indexes.php?' . $url_query . '&index=' . urlencode($index_name) . '">' . ($cfg['PropertiesIconic'] ? '<img src="./images/button_edit.png" width="12" height="13" hspace="7" border="0" title="' . $strEdit . '" alt="' . $strEdit . '">' : $strEdit) . '</a>' . "\n"
|
|
. ' </td>' . "\n";
|
|
|
|
if ($index_name == 'PRIMARY') {
|
|
$local_query = urlencode('ALTER TABLE ' . PMA_backquote($table) . ' DROP PRIMARY KEY');
|
|
$js_msg = 'ALTER TABLE ' . PMA_jsFormat($table) . ' DROP PRIMARY KEY';
|
|
$zero_rows = urlencode($strPrimaryKeyHasBeenDropped);
|
|
} else {
|
|
$local_query = urlencode('ALTER TABLE ' . PMA_backquote($table) . ' DROP INDEX ' . PMA_backquote($index_name));
|
|
$js_msg = 'ALTER TABLE ' . PMA_jsFormat($table) . ' DROP INDEX ' . PMA_jsFormat($index_name);
|
|
$zero_rows = urlencode(sprintf($strIndexHasBeenDropped, htmlspecialchars($index_name)));
|
|
}
|
|
echo $index_td
|
|
. ' <a href="sql.php?' . $url_query . '&sql_query=' . $local_query . '&zero_rows=' . $zero_rows . '" onclick="return confirmLink(this, \'' . $js_msg . '\')">' . ($cfg['PropertiesIconic'] ? '<img src="./images/button_drop.png" width="11" height="12" hspace="7" border="0" title="' . $strDrop . '" alt="' . $strDrop . '">' : $strDrop) . '</a>' . "\n"
|
|
. ' </td>' . "\n";
|
|
|
|
foreach($indexes_info[$index_name]['Sequences'] AS $row_no => $seq_index) {
|
|
if ($row_no > 0) {
|
|
echo ' <tr>' . "\n";
|
|
}
|
|
if (!empty($indexes_data[$index_name][$seq_index]['Sub_part'])) {
|
|
echo ' <td bgcolor="' . $cell_bgd . '">' . "\n"
|
|
. ' ' . $indexes_data[$index_name][$seq_index]['Column_name'] . "\n"
|
|
. ' </td>' . "\n";
|
|
echo ' <td align="right" bgcolor="' . $cell_bgd . '">' . "\n"
|
|
. ' ' . $indexes_data[$index_name][$seq_index]['Sub_part'] . "\n"
|
|
. ' </td>' . "\n";
|
|
echo ' </tr>' . "\n";
|
|
} else {
|
|
echo ' <td bgcolor="' . $cell_bgd . '" colspan="2">' . "\n"
|
|
. ' ' . htmlspecialchars($indexes_data[$index_name][$seq_index]['Column_name']) . "\n"
|
|
. ' </td>' . "\n";
|
|
echo ' </tr>' . "\n";
|
|
}
|
|
} // end while
|
|
} // end while
|
|
?>
|
|
</table><br />
|
|
<?php
|
|
echo "\n\n";
|
|
} // end display indexes
|
|
else {
|
|
// none indexes
|
|
echo "\n" . ' <br />' . "\n";
|
|
echo ' <i>' . $strNoIndex . '</i><br /><br />' . "\n\n";
|
|
}
|
|
|
|
echo ' ' . sprintf($strCreateIndex, '<input type="text" size="4" name="idx_num_fields" value="1" class="textfield" />') . "\n";
|
|
echo ' <input type="submit" name="create_index" value="' . $strGo . '" onclick="return checkFormElementInRange(this.form, \'idx_num_fields\', 1)" />' . "\n";
|
|
echo ' ';
|
|
} // end display indexes
|
|
|
|
?>
|
|
</form>
|
|
|
|
|
|
<?php
|
|
/**
|
|
* Displays the footer
|
|
*/
|
|
echo "\n";
|
|
|
|
if (!defined('PMA_IDX_INCLUDED')){
|
|
require_once('./footer.inc.php');
|
|
}
|
|
?>
|