使用codeigniter的速度全文搜索索引速度不如速度

Question

上午在使用CodeIgniter进行全文搜索时遇到了问题。在这里，我有一个动态行和列的表，当我使用全文索引搜索输入字段到一行时，速度非常缓慢。这里已经将以下值设置为DB引擎作为MYISAM，将表列设置为FULLTEXT INDEX。我希望输入字段中的数据非常快。这里有我附加了我累了的事。请检查它并让我知道。

public function product_autocomplete() 
{ 
    $name_startsWith = $_POST['name_startsWith']; 
    $type = $_POST['type']; 
    $row_num = $_POST['row_num']; 
    $this->db->like('item_number', $name_startsWith); 
    $query = $this->db->select('item_id,item_number,name,tax_included,cost_price,categoryid,unit_price,supplier_id,quantity_received') 
    ->from('bgs_items') 
    ->where('MATCH (bgs_items.item_number) AGAINST ("'. $name_startsWith .'")', NULL, false) 
    ->limit(10) 
    ->get(); 
    $data = array(); 

    foreach ($query->result_array() as $row) 
    { 
    $name = $row['item_number']."-".$row['name'].'|'.$row['name'].'|'.$row['tax_included'].'|'.$row['cost_price'].'|'.$row['categoryid'].'|'.$row['unit_price'].'|'.$row['supplier_id'].'|'.$row['quantity_received'].'|'.$row['item_number'].'|'.$row['item_id'].'|'.$row['supplier_id'].'|'.$row_num; 
    array_push($data, $name); 
    } 
    echo json_encode($data); 
} 

Answer 1

请尽量为什么你使用`like`和`against`无论是在相同的查询中使用下面的查询

public function product_autocomplete() 
    { 
     $name_startsWith = $_POST['name_startsWith']; 
     $type = $_POST['type']; 
     $row_num = $_POST['row_num']; 
     $query = $this->db->select('item_id,item_number,name,tax_included,cost_price,categoryid,unit_price,supplier_id,quantity_received') 
     ->from('bgs_items') 
     ->where('MATCH (bgs_items.item_number) AGAINST ("'. $name_startsWith .'")', NULL, false) 
     ->limit(10) 
     ->get(); 
     $data = array(); 

     foreach ($query->result_array() as $row) 
     { 
     $name = $row['item_number']."-".$row['name'].'|'.$row['name'].'|'.$row['tax_included'].'|'.$row['cost_price'].'|'.$row['categoryid'].'|'.$row['unit_price'].'|'.$row['supplier_id'].'|'.$row['quantity_received'].'|'.$row['item_number'].'|'.$row['item_id'].'|'.$row['supplier_id'].'|'.$row_num; 
     array_push($data, $name); 
     } 
     echo json_encode($data); 
    }