Query time 0.00109
JSON explain
{
"query_block": {
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"cost_info": {
"query_cost": "7.29"
},
"grouping_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "0.10"
},
"nested_loop": [
{
"table": {
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"access_type": "index",
"possible_keys": [
"thread_id",
"thread_id_2"
],
"key": "thread_id_2",
"used_key_parts": [
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"status"
],
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},
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"post_id",
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],
"attached_condition": "(`webmarco`.`dp`.`status` = 'A')"
}
},
{
"table": {
"table_name": "cscart_discussion",
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],
"key": "PRIMARY",
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],
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},
"used_columns": [
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],
"attached_condition": "((`webmarco`.`cscart_discussion`.`object_id` in (431199,392169,339707,430908,431115,339829,431133,339758,339809,339769,339677,339729,381702,431050,431150,339807,431158,339648,431026,430747,431195,339479,430748,339851,430681,339712,339746,381696,339847,430924,431102,431122,430907,339654,339704,339664,339735,430696,431201,430648,339760,339485,430824,430916,387047,430771,339720,339817,430636,430638,430915,430998,431139,339812,430646,430857,431120,430743,339835,430831,430935,339714,430803,430821,430823,431151,430813,381698,339668,339715,431145,387049,430649,430665,430751,381699,339671,339820,431127,431109,339761,430647,339694,339650,430848,430766,339593,431114,430660,430817,339849,430903,431097,431103,430902,431163,431194,339484,339755,430818)) and (`webmarco`.`cscart_discussion`.`object_type` = 'P'))"
}
},
{
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],
"key": "PRIMARY",
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],
"key_length": "3",
"ref": [
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],
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"eval_cost": "0.02",
"prefix_cost": "7.19",
"data_read_per_join": "760"
},
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]
}
}
]
}
}
}