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SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.short_description, 
  IF(
    cscart_product_descriptions.short_description = '', 
    cscart_product_descriptions.full_description, 
    ''
  ) AS full_description, 
  cscart_product_descriptions.meta_keywords, 
  cscart_product_descriptions.meta_description, 
  cscart_product_descriptions.search_words, 
  cscart_product_descriptions.promo_text 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (525) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00021

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_product_descriptions",
      "access_type": "const",
      "possible_keys": ["PRIMARY", "product_id"],
      "key": "PRIMARY",
      "key_length": "9",
      "used_key_parts": ["product_id", "lang_code"],
      "ref": ["const", "const"],
      "rows": 1,
      "filtered": 100
    }
  }
}

Result

product_id	short_description	full_description	meta_keywords	meta_description	search_words	promo_text
525		<p mce_style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Arial;" style="color: rgb(57, 57, 57); padding-top: 0px; padding-bottom: 0px; background-color: rgb(255, 255, 255); font-size: 8px; font-family: Arial;"> <span mce_style="font-size: small;" style="font-size: small;">Speco Technologies’ PAT20TB talk-back DC mobile amplifier delivers an amplified sound system suitable for any motor vehicle and/or nautical application.</span></p><ul style="margin-top: 25px; margin-bottom: 25px; margin-left: 0px; font-family: Helvetica, Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-size: small;" style="font-size: small;">Talk-back button turns speaker into microphone to carry on two-way conversations</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span class="Apple-style-span" mce_fixed="1" mce_style="line-height: 15px;" style="line-height: 15px;"><span mce_style="font-size: small;" style="font-size: small;">Plug-in cigarette lighter adapter for instant DC power supply</span></span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span class="Apple-style-span" mce_fixed="1" mce_style="line-height: 15px;" style="line-height: 15px;"><span mce_style="font-size: small;" style="font-size: small;">Individual controls for auxiliary, master volume and tone</span></span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span class="Apple-style-span" mce_fixed="1" mce_style="line-height: 15px;" style="line-height: 15px;"><span mce_style="font-size: small;" style="font-size: small;">Auxiliary sound input jack on rear panel</span></span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span class="Apple-style-span" mce_fixed="1" mce_style="line-height: 15px;" style="line-height: 15px;"><span mce_style="font-size: small;" style="font-size: small;">Underlying suction cups for secure placement</span></span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span class="Apple-style-span" mce_fixed="1" mce_style="line-height: 15px;" style="line-height: 15px;"><span mce_style="font-size: small;" style="font-size: small;">Amplifier includes built-in speaker and push-to-talk microphone</span></span></li> </ul><p style="color: rgb(57, 57, 57); line-height: 18px; padding-top: 0px; padding-bottom: 0px; font-family: Helvetica, Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"> <span mce_style="font-size: medium;" style="font-size: medium;"><strong>Features</strong>:</span></p><ul style="margin-top: 25px; margin-bottom: 25px; margin-left: 0px; font-family: Helvetica, Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">RMS Power: 20W</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Impedance: 4 or 8 Ohms</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Frequency Response: 50Hz – 20kHz</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Auxiliary Audio Jack Input: 200mV/50K Ohms</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">MIC Input: 2mV/5K Ohms</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Power Source: 11V to 16V DC NEG GND</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Dimensions: 5.1” (W) x 1.25” (H) x 4.5” (D)</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Weight: 2 lbs.</span></li> <li style="margin: 0px 0px 7px; padding-left: 10px; list-style: none; color: rgb(57, 57, 57); background-image: url(http://specotech.com/templates/speco/images/detail_li_ico.png); background-position: 0px 5px; background-repeat: no-repeat no-repeat;"> <span mce_style="font-family: arial, helvetica, sans-serif;" style="font-family: arial, helvetica, sans-serif;">Mounting brackets included</span></li> </ul>			PAT-20, PAT-20TB, talkback amp, talk back amp, mobile amp, mobile talkback amp, mobile talk back amp, mobile PA