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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 (
    9984, 
    9985, 
    9986, 
    9987, 
    9988, 
    9989, 
    9990, 
    9991, 
    9992, 
    9993, 
    9994, 
    9995, 
    9996, 
    9997, 
    9998, 
    9999, 
    10747, 
    10748, 
    10749, 
    10750, 
    10751, 
    10752, 
    9972, 
    9973, 
    9975, 
    9976, 
    9977, 
    9978, 
    9979, 
    10179, 
    10180, 
    10523, 
    10073, 
    10077, 
    10076, 
    10086, 
    10085, 
    10084, 
    10083, 
    10082, 
    10081, 
    10080, 
    10079, 
    10584, 
    10594, 
    10739, 
    10740, 
    10741, 
    10742, 
    10759, 
    10760, 
    10761, 
    10762, 
    10763, 
    10764, 
    10765, 
    10766, 
    10778, 
    10779, 
    10780, 
    10781, 
    10782, 
    10783, 
    10784, 
    10785, 
    10786, 
    10787, 
    10788, 
    10789, 
    10790, 
    10791, 
    10767, 
    10768, 
    10769, 
    10770, 
    10771, 
    10772, 
    10773, 
    10774, 
    10775, 
    10776, 
    10777, 
    12944, 
    12985, 
    12986, 
    12987, 
    12988, 
    12989, 
    12990, 
    12991, 
    12992, 
    12993, 
    12994, 
    10063, 
    10052, 
    10072, 
    10046, 
    10059, 
    10064, 
    10057, 
    10048, 
    10062, 
    10070, 
    10058, 
    10045, 
    10054, 
    10047, 
    10071, 
    10067, 
    10051, 
    10060, 
    10055, 
    10043, 
    10068, 
    10065, 
    10061, 
    10050, 
    10056, 
    10044, 
    10069, 
    10066, 
    10024, 
    10025, 
    10026, 
    10027, 
    10028, 
    10029, 
    10030
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00024

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}