SELECT 
  cscart_ult_product_descriptions.product_id, 
  cscart_ult_product_descriptions.short_description, 
  IF(
    cscart_ult_product_descriptions.short_description = "", 
    cscart_ult_product_descriptions.full_description, 
    ""
  ) AS full_description, 
  cscart_ult_product_descriptions.meta_keywords, 
  cscart_ult_product_descriptions.meta_description, 
  cscart_ult_product_descriptions.search_words, 
  cscart_ult_product_descriptions.promo_text 
FROM 
  cscart_ult_product_descriptions 
WHERE 
  cscart_ult_product_descriptions.product_id IN (6843, 6840, 3131) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.37"
    },
    "table": {
      "table_name": "cscart_ult_product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id",
        "company_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code",
        "company_id"
      ],
      "key_length": "13",
      "rows_examined_per_scan": 3,
      "rows_produced_per_join": 3,
      "filtered": "100.00",
      "index_condition": "((`gaseus`.`cscart_ult_product_descriptions`.`company_id` = 1) and (`gaseus`.`cscart_ult_product_descriptions`.`product_id` in (6843,6840,3131)) and (`gaseus`.`cscart_ult_product_descriptions`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "2.08",
        "eval_cost": "0.30",
        "prefix_cost": "2.38",
        "data_read_per_join": "11K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "company_id",
        "short_description",
        "full_description",
        "meta_keywords",
        "meta_description",
        "search_words",
        "promo_text"
      ]
    }
  }
}

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text
3131 Vulkan LH40 line pressure reducer nitrogen G1/2RHi both sides 0.5 - 16 bar with safety pressure gauge<br />Standards & Design:<br /><br />according to DIN EN ISO 5171, Inlet pressure: max<br /><br />Technical data:<br /><br />• Outlet pressure: 0<br />• output: 150 Nm³/h air at 16 bar outlet pressure<br />• Inlet: internal thread G1/2 RHi, Outlet: internal thread G1/2 RHi, Working pressure gauge: 0 - 16/10 bar axial, Width x Height x Depth: 90 x 180 x 90 mm<br />• Outlet: internal thread G1/2 RHi, Working pressure gauge: 0 - 16/10 bar axial, Width x Height x Depth: 90 x 180 x 90 mm<br /><br />Dimensions:<br /><br />Width x Height x Depth: 90 x 180 x 90 mm
6840 Vulkan F15/200 Effect LabLine nitrogen cylinder pressure reducer 0-1.5 bar, fully chrome-plated with a metal diaphragm for gas purity 5.0, with pre-pressure compensation for constant back pressure under all operating conditions<br />Standards & Design:<br /><br />single-stage design, with shut-off valve, with safety gauges according to DIN EN ISO 5171, maximum inlet pressure: 200 bar, adjustable outlet pressure: 0-1<br />according to DIN 477-1 No<br /><br />Functional elements:<br /><br />• shut-off valve, with safety gauges according to DIN EN ISO 5171, maximum inlet pressure: 200 bar, adjustable outlet pressure: 0-1<br /><br />Technical data:<br /><br />• maximum inlet pressure: 200 bar, adjustable outlet pressure: 0-1<br />• outlet pressure: 0-1<br />• output: 8 Nm³/h compressed air at 1<br />• Inlet: W24<br />• outlet: 6 mm stainless steel compression fitting<br /><br />Dimensions:<br /><br />Width x Height x Depth: 210 x 190 x 75 mm
6843 Vulkan F15/200 Effect LabLine nitrogen cylinder pressure reducer 0-1.5 bar, fully chrome-plated with a metal diaphragm for gas purity 5.0, with pre-pressure compensation for constant back pressure under all operating conditions<br />Standards & Design:<br /><br />single-stage design, with shut-off valve, with safety gauges according to DIN EN ISO 5171, maximum inlet pressure: 200 bar, adjustable outlet pressure: 0-1<br />according to DIN 477-1 No<br /><br />Functional elements:<br /><br />• shut-off valve, with safety gauges according to DIN EN ISO 5171, maximum inlet pressure: 200 bar, adjustable outlet pressure: 0-1<br /><br />Technical data:<br /><br />• maximum inlet pressure: 200 bar, adjustable outlet pressure: 0-1<br />• outlet pressure: 0-1<br />• output: 8 Nm³/h compressed air at 1<br />• Inlet: W24<br />• outlet: 6 mm stainless steel compression fitting<br /><br />Dimensions:<br /><br />Width x Height x Depth: 210 x 190 x 75 mm