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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 (3430, 4027) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.59"
    },
    "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": 2,
      "rows_produced_per_join": 2,
      "filtered": "100.00",
      "index_condition": "((`gaseus`.`cscart_ult_product_descriptions`.`company_id` = 1) and (`gaseus`.`cscart_ult_product_descriptions`.`product_id` in (3430,4027)) and (`gaseus`.`cscart_ult_product_descriptions`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "1.39",
        "eval_cost": "0.20",
        "prefix_cost": "1.59",
        "data_read_per_join": "7K"
      },
      "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
3430		einstufige Bauart, mit Sicherheitsmanometern nach ISO 5171, Eingangsdruck max: 40 bar<br />Ausgangsdruck: 0 – 20 bar regelbar<br />Leistung max: 90 Nm³/h Druckluft bei 20 bar Hinterdruck <br />Ein- und Ausgang: Klemmring Ms 12 mm<br />ohne Eingangsmanometer<br />Ausgangsmanometer: 0 – 40/20 bar senkrecht<br />Breite x Höhe x Tiefe: 220 x 200 x 75 mm <br />mit Typenschild auf Druckminderer, mit Werkszeugnis 2.2 Bedienungsanleitung, Etikett mit Lindenummer/öl- und fettfrei auf Folie und Karton
4027		<p>Working pressure reducer Vulkan AD 35 nitrogen 0 - 10 bar for AM 35, single-stage design, with safety pressure gauge according to DIN EN ISO 5171. Maximum inlet pressure: 20 bar. Output pressure: 0 - 10 bar, adjustable. Maximum output: 50 Nm³/h air at 10 bar outlet pressure. Inlet: G1/2" male thread, threaded connection according to DIN EN 560. Outlet: G3/8" male thread, threaded connection according to DIN EN 560. Outlet pressure gauge: 0 - 16/10 bar. Width x Height x Depth: 89 x 166 x 134 mm. This line pressure reducer is available in the following versions: Gas purity/diaphragm: Standard: - for technical gases up to a gas purity of 4.5 with a standard diaphragm. Optional (surcharge): - for pure gases up to a gas purity of 5.0 with a stainless steel diaphragm. SS321 (1.4541)</p>