diff --git a/htdocs/sql/libraries/tbl_indexes.lib.php b/htdocs/sql/libraries/tbl_indexes.lib.php
new file mode 100755
--- /dev/null
+++ b/htdocs/sql/libraries/tbl_indexes.lib.php
@@ -0,0 +1,295 @@
+ $each_index) {
+ if (count($while_index) !== count($each_index)) {
+ // number of fields are not equal
+ continue;
+ }
+
+ // compare some key elements of every column in this two indexes
+ foreach ($each_index as $col_name => $each_index_column) {
+ if (! isset($while_index[$col_name])
+ // the position
+ || $while_index[$col_name]['Seq_in_index'] !== $each_index_column['Seq_in_index']
+ // the order, ASC or DESC
+ || $while_index[$col_name]['Collation'] !== $each_index_column['Collation']
+ // the length
+ || $while_index[$col_name]['Sub_part'] !== $each_index_column['Sub_part']
+ // BTREE or HASH
+ || $while_index[$col_name]['Index_type'] !== $each_index_column['Index_type']) {
+ continue 2;
+ }
+ }
+
+ // did not find any difference
+ // so it makes no sense to have this two equal indexes
+
+ // use first column from index to fetch index name
+ reset($while_index);
+ $first_column = current($while_index);
+
+ $output .= '
';
+ $output .= $GLOBALS['strIndexesSeemEqual'] . ' ';
+ $output .= $each_index_name . ', ' . $first_column['Key_name'];
+ $output .= '
';
+
+ // there is no need to check any further indexes if we have already
+ // found that this one has a duplicate
+ continue 2;
+ }
+ }
+
+ if ($output) {
+ $output = '' . $output . ' |
';
+ }
+
+ return $output;
+}
+
+/**
+ * Loop array of returned index keys and extract key information to
+ * seperate arrays. Those arrays are passed by reference.
+ *
+ * @param array Referenced Array of indexes
+ * @param array Referenced return array
+ * @param array Referenced return array
+ * @param array Referenced return array
+ *
+ * @access public
+ * @return boolean void
+ * @author Garvin Hicking (pma@supergarv.de)
+ */
+function PMA_extract_indexes(&$ret_keys, &$indexes, &$indexes_info, &$indexes_data)
+{
+ if (! is_array($ret_keys)) {
+ return false;
+ }
+
+ $prev_index = '';
+ foreach ($ret_keys as $row) {
+ if ($row['Key_name'] != $prev_index){
+ $indexes[] = $row['Key_name'];
+ $prev_index = $row['Key_name'];
+ }
+
+ $indexes_info[$row['Key_name']]['Sequences'][] = $row['Seq_in_index'];
+ $indexes_info[$row['Key_name']]['Non_unique'] = $row['Non_unique'];
+
+ if (isset($row['Cardinality'])) {
+ $indexes_info[$row['Key_name']]['Cardinality'] = $row['Cardinality'];
+ }
+
+ // I don't know what does following column mean....
+ // $indexes_info[$row['Key_name']]['Packed'] = $row['Packed'];
+ $indexes_info[$row['Key_name']]['Comment'] = (isset($row['Comment']))
+ ? $row['Comment']
+ : '';
+ $indexes_info[$row['Key_name']]['Index_type'] = (isset($row['Index_type']))
+ ? $row['Index_type']
+ : '';
+
+ $indexes_data[$row['Key_name']][$row['Seq_in_index']]['Column_name'] = $row['Column_name'];
+ if (isset($row['Sub_part'])) {
+ $indexes_data[$row['Key_name']][$row['Seq_in_index']]['Sub_part'] = $row['Sub_part'];
+ }
+ } // end while
+
+ return true;
+}
+
+/**
+ * Show index data and prepare returned collection array for index
+ * key checks.
+ *
+ * @param string $table The tablename
+ * @param array $indexes Referenced Array of indexes
+ * @param array $indexes_info Referenced info array
+ * @param array $indexes_data Referenced data array
+ * @param boolean $display_html Output HTML code, or just return collection array?
+ * @param boolean $print_mode
+ * @access public
+ * @return array Index collection array
+ * @author Garvin Hicking (pma@supergarv.de)
+ */
+function PMA_show_indexes($table, &$indexes, &$indexes_info, &$indexes_data,
+ $display_html = true, $print_mode = false)
+{
+ $idx_collection = array();
+ $odd_row = true;
+ foreach ($indexes as $index_name) {
+ if ($display_html) {
+ $row_span = ' rowspan="' . count($indexes_info[$index_name]['Sequences']) . '" ';
+
+ echo ' ' . "\n";
+ echo ' ' . "\n"
+ . ' ' . htmlspecialchars($index_name) . "\n"
+ . ' | ' . "\n";
+ }
+
+ if ((PMA_MYSQL_INT_VERSION < 40002 && $indexes_info[$index_name]['Comment'] == 'FULLTEXT')
+ || (PMA_MYSQL_INT_VERSION >= 40002 && $indexes_info[$index_name]['Index_type'] == 'FULLTEXT')) {
+ $index_type = 'FULLTEXT';
+ } elseif ($index_name == 'PRIMARY') {
+ $index_type = 'PRIMARY';
+ } elseif ($indexes_info[$index_name]['Non_unique'] == '0') {
+ $index_type = 'UNIQUE';
+ } else {
+ $index_type = 'INDEX';
+ }
+
+ if ($display_html) {
+ echo ' ' . "\n"
+ . ' ' . $index_type . ' | ' . "\n";
+
+ echo ' ' . "\n"
+ . ' ' . (isset($indexes_info[$index_name]['Cardinality']) ? $indexes_info[$index_name]['Cardinality'] : $GLOBALS['strNone']) . ' ' . "\n"
+ . ' | ' . "\n";
+
+ if (!$print_mode) {
+ echo ' ' . "\n"
+ . ' ' . $GLOBALS['edit_link_text'] . '' . "\n"
+ . ' | ' . "\n";
+
+ if ($index_name == 'PRIMARY') {
+ $local_query = urlencode('ALTER TABLE ' . PMA_backquote($table) . ' DROP PRIMARY KEY');
+ $js_msg = 'ALTER TABLE ' . PMA_jsFormat($table) . ' DROP PRIMARY KEY';
+ $zero_rows = urlencode($GLOBALS['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);
+ $zero_rows = urlencode(sprintf($GLOBALS['strIndexHasBeenDropped'], htmlspecialchars($index_name)));
+ }
+
+ echo ' ' . "\n"
+ . ' ' . $GLOBALS['drop_link_text'] . '' . "\n"
+ . ' | ' . "\n";
+ }
+ }
+
+ foreach ($indexes_info[$index_name]['Sequences'] AS $row_no => $seq_index) {
+ $col_name = $indexes_data[$index_name][$seq_index]['Column_name'];
+ if ($row_no == 0) {
+ if (isset($idx_collection[$index_type][$col_name])) {
+ $idx_collection[$index_type][$col_name]++;
+ } else {
+ $idx_collection[$index_type][$col_name] = 1;
+ }
+
+ if (isset($idx_collection['ALL'][$col_name])) {
+ $idx_collection['ALL'][$col_name]++;
+ } else {
+ $idx_collection['ALL'][$col_name] = 1;
+ }
+ }
+
+ if ($display_html) {
+ if ($row_no > 0) {
+ echo '
' . "\n";
+ }
+
+ if (isset($indexes_data[$index_name][$seq_index]['Sub_part'])
+ && strlen($indexes_data[$index_name][$seq_index]['Sub_part'])) {
+ echo ' ' . $col_name . ' | ' . "\n";
+ echo ' ' . "\n"
+ . ' ' . $indexes_data[$index_name][$seq_index]['Sub_part'] . "\n"
+ . ' | ' . "\n";
+ echo '
' . "\n";
+ } else {
+ echo ' ' . "\n"
+ . ' ' . htmlspecialchars($col_name) . "\n"
+ . ' | ' . "\n";
+ echo ' ' . "\n";
+ }
+ }
+ } // end foreach $indexes_info[$index_name]['Sequences']
+
+ $odd_row = ! $odd_row;
+ } // end while
+
+ return $idx_collection;
+}
+
+?>