SELECT 
  * 
FROM 
  cscart_product_options_inventory 
WHERE 
  product_id = 10195 
  AND combination_hash = '4043023335'

Query time 0.00021

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_product_options_inventory const PRIMARY,pc PRIMARY 4 const 1

Result

product_id product_code combination_hash combination amount temp position price weight min_qty max_qty qty_step list_qty_count aval_status
10195 87DX01 89301 4043023335 1190_22413_1191_22429 24.00 N 0 1482.60 44.00 0 0 0 0 1