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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 (
    103, 
    298, 
    370, 
    398, 
    427, 
    428, 
    429, 
    430, 
    431, 
    492, 
    493, 
    1752, 
    5475, 
    533, 
    531, 
    536, 
    534, 
    3844, 
    532, 
    292, 
    535, 
    3854, 
    3853, 
    3852, 
    3851, 
    3850, 
    3849, 
    3848, 
    3847, 
    3846, 
    3845, 
    3843, 
    3856, 
    3785, 
    3841, 
    3840, 
    3839, 
    3838, 
    3837, 
    3836, 
    3835, 
    3834, 
    3833, 
    3832, 
    3855, 
    3857, 
    3830, 
    3801, 
    3882, 
    3881, 
    3880, 
    3806, 
    3805, 
    3877, 
    3808, 
    3807, 
    3874, 
    3873, 
    3812, 
    3870, 
    3815, 
    3814, 
    3813, 
    3867, 
    3866, 
    3865, 
    3864, 
    3863, 
    3862, 
    3861, 
    3824, 
    3859, 
    3831, 
    3829, 
    3773, 
    3786, 
    3797, 
    3796, 
    3795, 
    3794, 
    3793, 
    3792, 
    3791, 
    3790, 
    3789, 
    3788, 
    3787, 
    3842, 
    3799, 
    3782, 
    3781, 
    3780, 
    3779, 
    3778, 
    3777, 
    3776, 
    3775, 
    3774, 
    3798, 
    3800, 
    3828, 
    3860, 
    3827, 
    3858, 
    3823, 
    3822, 
    3821, 
    3820, 
    3819, 
    3818, 
    3817, 
    3816, 
    3869, 
    3868, 
    3872, 
    3871, 
    3811, 
    3810, 
    3809, 
    3876, 
    3875, 
    3879, 
    3878, 
    3804, 
    3803, 
    3802, 
    3883, 
    3884
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00041

JSON explain

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