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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 (6677, 3111, 3124) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00050

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 (6677,3111,3124)) 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
3111		In-line dome pressure reducer Vulkan LD1 MD Helium G1RHi, 0.5 - 99 bar, both sides, not for carbon dioxide. Material: Brass/Viton<br />Standards & Design:<br /><br />Single-stage design<br /><br />Technical data:<br /><br />• Maximum inlet pressure: 100 bar<br />• outlet pressure<br />• Output pressure: 0<br />• Inlet: Internal thread G1RHi<br />• Outlet: Internal thread G1RHi<br /><br />Dimensions:<br /><br />Width x Height x Depth: 130 x 170 x 130 mm
3124		In-line dome pressure reducer Vulkan LD1 MD hydrogen G1RHi, both sides 0.5 - 99 bar. Materials: Brass<br />Standards & Design:<br /><br />single-stage design, maximum inlet pressure: 100 bar<br /><br />Technical data:<br /><br />• maximum inlet pressure: 100 bar<br />• outlet pressure<br />• Output pressure: 0<br />• Inlet: internal thread G1RHi, outlet: internal thread G1RHi<br />• outlet: internal thread G1RHi<br /><br />Dimensions:<br /><br />Width x Height x Depth: 130 x 170 x 130 mm
6677		Vulkan L15 line pressure reducer for fuel gases G1/2RH, 0 - 1.5 bar<br />Standards & Design:<br /><br />single-stage design, with safety pressure gauges according to DIN ISO 5171, maximum inlet pressure: 20 bar, output pressure: 0 to 1<br />according to EN 560, output: external thread G1/2RH according to EN 560, input pressure gauge: 0 to 40/20 bar, output pressure gauge: 0 to 2<br /><br />Technical data:<br /><br />• maximum inlet pressure: 20 bar, output pressure: 0 to 1<br />• outlet pressure, input: external thread G1/2RH according to EN 560, output: external thread G1/2RH according to EN 560, input pressure gauge: 0 to 40/20 bar, output pressure gauge: 0 to 2<br />• output pressure: 0 to 1<br /><br />Dimensions:<br /><br />width x height x depth: 200 x 200 x 75 mm