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#19685832 add index hint when document select query.

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add low_priority when docuement insert, update, delete query. because select slow query table lock.


git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@8289 201d5d3c-b55e-5fd7-737f-ddc643e51545
This commit is contained in:
ovclas 2011-04-11 08:41:40 +00:00
parent 0943470d5f
commit 048866cd25
10 changed files with 1663 additions and 1534 deletions
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30
classes/db/DBMysql.class.php
View file

@ -449,7 +449,11 @@
$value_list[] = $value;
}
$query = sprintf("insert into %s (%s) values (%s);", implode(',',$table_list), implode(',',$column_list), implode(',', $value_list));
//priority setting
$priority = '';
if($output->priority) $priority = $output->priority['type'].'_priority';
$query = sprintf("insert %s into %s (%s) values (%s);", $priority, implode(',',$table_list), implode(',',$column_list), implode(',', $value_list));
return $this->_query($query);
}
@ -477,7 +481,11 @@
// List the conditional clause
$condition = $this->getCondition($output);
$query = sprintf("update %s set %s %s", implode(',',$table_list), implode(',',$column_list), $condition);
//priority setting
$priority = '';
if($output->priority) $priority = $output->priority['type'].'_priority';
$query = sprintf("update %s %s set %s %s", $priority, implode(',',$table_list), implode(',',$column_list), $condition);
return $this->_query($query);
}
@ -493,7 +501,11 @@
// List the conditional clause
$condition = $this->getCondition($output);
$query = sprintf("delete from %s %s", implode(',',$table_list), $condition);
//priority setting
$priority = '';
if($output->priority) $priority = $output->priority['type'].'_priority';
$query = sprintf("delete %s from %s %s", $priority, implode(',',$table_list), $condition);
return $this->_query($query);
}
@ -568,7 +580,11 @@
$output->column_list = $column_list;
$condition = $this->getCondition($output);
if($output->list_count && $output->page) return $this->_getNavigationData($table_list, $columns, $left_join, $condition, $output);
if(count($output->index_hint))
$index_hint = sprintf(' %s index (%s) ', $output->index_hint['type'], $output->index_hint['name']);
if($output->list_count && $output->page) return $this->_getNavigationData($table_list, $columns, $left_join, $index_hint, $condition, $output);
// Add a condition to use an index when sorting in order by list_order, update_order
if($output->order) {
$conditions = $this->getConditionList($output);
@ -615,7 +631,7 @@
$columns = join(',',$columns);
}
$query = sprintf("select %s from %s %s %s %s", $columns, implode(',',$table_list),implode(' ',$left_join), $condition, $groupby_query.$orderby_query);
$query = sprintf("select %s from %s %s %s %s %s", $columns, implode(',',$table_list),implode(' ',$left_join), $index_hint, $condition, $groupby_query.$orderby_query);
// Apply when using list_count
if($output->list_count['value']) $query = sprintf('%s limit %d', $query, $output->list_count['value']);
@ -644,7 +660,7 @@
*
* It is quite convenient although its structure is not good at all .. -_-;
**/
function _getNavigationData($table_list, $columns, $left_join, $condition, $output) {
function _getNavigationData($table_list, $columns, $left_join, $index_hint, $condition, $output) {
require_once(_XE_PATH_.'classes/page/PageHandler.class.php');
$column_list = $output->column_list;
@ -715,7 +731,7 @@
$columns = join(',',$columns);
}
$query = sprintf("select %s from %s %s %s %s", $columns, implode(',',$table_list), implode(' ',$left_join), $condition, $groupby_query.$orderby_query);
$query = sprintf("select %s from %s %s %s %s %s", $columns, implode(',',$table_list), implode(' ',$left_join), $index_hint, $condition, $groupby_query.$orderby_query);
$query = sprintf('%s limit %d, %d', $query, $start_count, $list_count);
$query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf(' '.$this->comment_syntax,$this->query_id):'';