Query time 0.00187
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "7.29"
},
"grouping_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "0.10"
},
"nested_loop": [
{
"table": {
"table_name": "dp",
"access_type": "index",
"possible_keys": [
"thread_id",
"thread_id_2"
],
"key": "thread_id_2",
"used_key_parts": [
"thread_id",
"status"
],
"key_length": "6",
"rows_examined_per_scan": 19,
"rows_produced_per_join": 1,
"filtered": "10.00",
"using_index": true,
"cost_info": {
"read_cost": "4.42",
"eval_cost": "0.38",
"prefix_cost": "4.80",
"data_read_per_join": "851"
},
"used_columns": [
"post_id",
"thread_id",
"status"
],
"attached_condition": "(`webmarco`.`dp`.`status` = 'A')"
}
},
{
"table": {
"table_name": "cscart_discussion",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"object_id"
],
"key": "PRIMARY",
"used_key_parts": [
"thread_id"
],
"key_length": "3",
"ref": [
"webmarco.dp.thread_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "5.00",
"cost_info": {
"read_cost": "1.90",
"eval_cost": "0.02",
"prefix_cost": "7.08",
"data_read_per_join": "2"
},
"used_columns": [
"thread_id",
"object_id",
"object_type"
],
"attached_condition": "((`webmarco`.`cscart_discussion`.`object_id` in (82052,82061,82069,82071,82072,82073,82074,82101,82103,82038,148882,148883,148884,148885,148886,148887,148888,148889,148890,148891,148892,148893,148894,148895,148896,148897,148898,148899,148900,148901,148902,148903,148904,148905,148906,148907,148908,148909,148910,148911,148912,148913,148914,148915,148916,148917,148918,148919,148920,148921,148922,148923,148924,148925,148926,148927,148928,148929,148930,148931,81948,149025,149026,149027,149028,149029,149030,149031,149032,149033,149034,149035,149036,149037,149038,149039,149040,149041,82118,149043,149044,149045,149046,149047,149048,149049,149042,149050,149051,149052,149053,149054,149055,149056,149057,149058,149059,149060,149061,149062,149063,149064,149065,149066,149067,149068,149069,149070,149071,149072,149073,149074,149075,149076,149077,149078,149079,149080,149081,149082,149083,149084,149085,149086,149087,149088,149089,149090,149091,149092,149093,149094,149095,149096,149097,149098,149099,82009,149101,149102,149103,149104,149105,149106,149107,149108,149109,149110,149111,149112,149113,149114,81647,149123,149124,149125,149126,149127,149128,149129,149130,152072,152073,152074,152075,263772,264756,264757,264758,264759,263981,264764,264765,264766,264767,264304,264819,264820,264821,264822,264208,264847,264848,264849,264850,264851,264852,264853,264854,264855,264226,264884,264885,264886,264887,264888,264889,264890,264891,264892,264893,264894,264895,264896,264897,264156,264927,264928,264929,264930,264931,264932,264933,264934,264935,264950,264951,264952,264953,264954,263720,264936,264937,264938,264939,264940,264941,264942,264943,264944,264945,264946,264947,264948,264949,264955,264956,264957,264958,264959)) and (`webmarco`.`cscart_discussion`.`object_type` = 'P'))"
}
},
{
"table": {
"table_name": "p",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"age_verification",
"status",
"idx_parent_product_id",
"idx_master_product_id"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"webmarco.cscart_discussion.object_id"
],
"rows_examined_per_scan": 1,
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"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.10",
"eval_cost": "0.02",
"prefix_cost": "7.19",
"data_read_per_join": "760"
},
"used_columns": [
"product_id"
]
}
}
]
}
}
}