SELECT 
  id, 
  placeholder, 
  type, 
  no_pagination 
FROM 
  cscart_image_gallery_settings 
WHERE 
  placeholder <> ''

Query time 0.00242

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_image_gallery_settings ALL 7422 Using where

Result

id placeholder type no_pagination
102 tab C N