{
"query_block": {
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"cost_info": {
"query_cost": "4.81"
},
"table": {
"table_name": "cscart_product_review_prepared_data",
"access_type": "range",
"possible_keys": [
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],
"key": "PRIMARY",
"used_key_parts": [
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],
"key_length": "7",
"rows_examined_per_scan": 2,
"rows_produced_per_join": 2,
"filtered": "100.00",
"index_condition": "((`webmarco`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`webmarco`.`cscart_product_review_prepared_data`.`product_id` in (359248,351021)))",
"cost_info": {
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"eval_cost": "0.40",
"prefix_cost": "4.81",
"data_read_per_join": "32"
},
"used_columns": [
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"storefront_id",
"average_rating",
"reviews_count"
]
}
}
}