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80 lines
2.1 KiB
PHP
80 lines
2.1 KiB
PHP
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<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Library for extracting information about the partitions
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*
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* @package PhpMyAdmin
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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/**
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* base Partition Class
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*
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* @package PhpMyAdmin
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*/
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class PMA_Partition
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{
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/**
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* returns array of partition names for a specific db/table
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*
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* @param string $db database name
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* @param string $table table name
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*
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* @access public
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* @return array of partition names
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*/
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static public function getPartitionNames($db, $table)
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{
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if (PMA_Partition::havePartitioning()) {
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return PMA_DBI_fetch_result(
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"SELECT `PARTITION_NAME` FROM `information_schema`.`PARTITIONS`"
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. " WHERE `TABLE_SCHEMA` = '" . $db
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. "' AND `TABLE_NAME` = '" . $table . "'"
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);
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} else {
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return array();
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}
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}
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/**
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* checks if MySQL server supports partitioning
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*
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* @static
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* @staticvar boolean $have_partitioning
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* @staticvar boolean $already_checked
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* @access public
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* @return boolean
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*/
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static public function havePartitioning()
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{
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static $have_partitioning = false;
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static $already_checked = false;
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if (! $already_checked) {
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if (PMA_MYSQL_INT_VERSION >= 50100) {
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if (PMA_MYSQL_INT_VERSION < 50600) {
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if (PMA_DBI_fetch_value(
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"SHOW VARIABLES LIKE 'have_partitioning';"
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)) {
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$have_partitioning = true;
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}
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} else {
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// see http://dev.mysql.com/doc/refman/5.6/en/partitioning.html
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$plugins = PMA_DBI_fetch_result("SHOW PLUGINS");
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foreach ($plugins as $value) {
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if ($value['Name'] == 'partition') {
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$have_partitioning = true;
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break;
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}
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}
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}
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$already_checked = true;
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}
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}
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return $have_partitioning;
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}
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}
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?>
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