mirror of
https://github.com/MariaDB/server.git
synced 2025-07-29 05:21:33 +03:00
Added more digits to JSON output of double
sprintf() format of double changed from '%lg' to '%-.11lg' The change was to make it easier to read optimizer trace output with tables that has millions of records.
This commit is contained in:
@ -73,7 +73,7 @@ explain select * from t1 where a=1 or b=1 {
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"range_analysis": {
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"table_scan": {
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"rows": 1000,
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"cost": 231.59
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"cost": 231.5878906
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},
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"potential_range_indexes": [
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{
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@ -111,12 +111,12 @@ explain select * from t1 where a=1 or b=1 {
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"using_mrr": false,
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"index_only": true,
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"rows": 1,
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"cost": 0.3456,
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"cost": 0.345585794,
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"chosen": true
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}
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],
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"index_to_merge": "a",
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"cumulated_cost": 0.3456
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"cumulated_cost": 0.345585794
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},
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{
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"range_scan_alternatives": [
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@ -127,15 +127,15 @@ explain select * from t1 where a=1 or b=1 {
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"using_mrr": false,
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"index_only": true,
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"rows": 1,
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"cost": 0.3456,
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"cost": 0.345585794,
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"chosen": true
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}
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],
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"index_to_merge": "b",
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"cumulated_cost": 0.6912
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"cumulated_cost": 0.691171589
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}
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],
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"cost_of_reading_ranges": 0.6912,
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"cost_of_reading_ranges": 0.691171589,
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"use_roworder_union": true,
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"cause": "always cheaper than non roworder retrieval",
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"analyzing_roworder_scans": [
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@ -158,7 +158,7 @@ explain select * from t1 where a=1 or b=1 {
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}
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}
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],
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"index_roworder_union_cost": 2.4849,
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"index_roworder_union_cost": 2.484903732,
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"members": 2,
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"chosen": true
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}
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@ -187,7 +187,7 @@ explain select * from t1 where a=1 or b=1 {
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]
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},
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"rows_for_plan": 2,
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"cost_for_plan": 2.4849,
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"cost_for_plan": 2.484903732,
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"chosen": true
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}
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}
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@ -209,19 +209,19 @@ explain select * from t1 where a=1 or b=1 {
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{
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"access_type": "index_merge",
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"resulting_rows": 2,
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"cost": 2.4849,
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"cost": 2.484903732,
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"chosen": true
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}
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],
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"chosen_access_method": {
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"type": "index_merge",
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"records": 2,
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"cost": 2.4849,
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"cost": 2.484903732,
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"uses_join_buffering": false
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}
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},
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"rows_for_plan": 2,
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"cost_for_plan": 2.8849,
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"cost_for_plan": 2.884903732,
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"estimated_join_cardinality": 2
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}
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]
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@ -322,7 +322,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": false,
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"rows": 2243,
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"cost": 2700.1,
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"cost": 2700.058937,
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"chosen": true
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},
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@ -336,7 +336,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": false,
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"rows": 2243,
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"cost": 2700.1,
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"cost": 2700.058937,
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"chosen": false,
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"cause": "cost"
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},
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@ -351,7 +351,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": false,
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"rows": 2243,
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"cost": 2700.1,
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"cost": 2700.058937,
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"chosen": false,
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"cause": "cost"
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}
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@ -363,10 +363,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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{
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"index": "key1",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 10.314,
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"disk_sweep_cost": 1923.1,
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"cumulative_total_cost": 1933.5,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 10.31393703,
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"disk_sweep_cost": 1923.144061,
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"cumulative_total_cost": 1933.457998,
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"usable": true,
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"matching_rows_now": 2243,
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"intersect_covering_with_this_index": false,
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@ -375,24 +375,24 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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{
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"index": "key2",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 20.628,
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"disk_sweep_cost": 84.518,
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"cumulative_total_cost": 105.15,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 20.62787405,
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"disk_sweep_cost": 84.51771758,
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"cumulative_total_cost": 105.1455916,
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"usable": true,
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"matching_rows_now": 77.636,
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"matching_rows_now": 77.6360508,
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"intersect_covering_with_this_index": false,
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"chosen": true
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},
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{
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"index": "key3",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 30.942,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 30.94181108,
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"disk_sweep_cost": 0,
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"cumulative_total_cost": 30.942,
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"cumulative_total_cost": 30.94181108,
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"usable": true,
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"matching_rows_now": 2.6872,
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"matching_rows_now": 2.687185191,
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"intersect_covering_with_this_index": true,
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"chosen": true
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}
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@ -403,7 +403,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"cause": "no clustered pk index"
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},
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"rows": 2,
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"cost": 30.942,
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"cost": 30.94181108,
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"covering": true,
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"chosen": true
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},
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@ -421,7 +421,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
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{
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"type": "index_roworder_intersect",
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"rows": 2,
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"cost": 30.942,
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"cost": 30.94181108,
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"covering": true,
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"clustered_pk_scan": false,
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"intersect_of":
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@ -459,7 +459,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
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]
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},
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"rows_for_plan": 2,
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"cost_for_plan": 30.942,
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"cost_for_plan": 30.94181108,
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"chosen": true
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}
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]
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@ -500,7 +500,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": true,
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"rows": 2243,
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"cost": 457.06,
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"cost": 457.058937,
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"chosen": true
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},
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@ -514,13 +514,13 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": true,
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"rows": 2243,
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"cost": 457.06,
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"cost": 457.058937,
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"chosen": false,
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"cause": "cost"
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}
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],
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"index_to_merge": "key1",
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"cumulated_cost": 457.06
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"cumulated_cost": 457.058937
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},
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{
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@ -537,7 +537,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": true,
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"rows": 2243,
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"cost": 457.06,
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"cost": 457.058937,
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"chosen": true
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},
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@ -551,16 +551,16 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"using_mrr": false,
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"index_only": true,
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"rows": 2243,
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"cost": 457.06,
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"cost": 457.058937,
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"chosen": false,
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"cause": "cost"
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}
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],
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"index_to_merge": "key3",
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"cumulated_cost": 914.12
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"cumulated_cost": 914.1178741
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}
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],
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"cost_of_reading_ranges": 914.12,
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"cost_of_reading_ranges": 914.1178741,
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"use_roworder_union": true,
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"cause": "always cheaper than non roworder retrieval",
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"analyzing_roworder_scans":
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@ -581,10 +581,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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{
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"index": "key1",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 10.314,
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"disk_sweep_cost": 1923.1,
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"cumulative_total_cost": 1933.5,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 10.31393703,
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"disk_sweep_cost": 1923.144061,
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"cumulative_total_cost": 1933.457998,
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"usable": true,
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"matching_rows_now": 2243,
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"intersect_covering_with_this_index": false,
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@ -593,12 +593,12 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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{
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"index": "key2",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 20.628,
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"disk_sweep_cost": 84.518,
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"cumulative_total_cost": 105.15,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 20.62787405,
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"disk_sweep_cost": 84.51771758,
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"cumulative_total_cost": 105.1455916,
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"usable": true,
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"matching_rows_now": 77.636,
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"matching_rows_now": 77.6360508,
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"intersect_covering_with_this_index": false,
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"chosen": true
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}
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@ -609,7 +609,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"cause": "no clustered pk index"
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},
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"rows": 77,
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"cost": 105.15,
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"cost": 105.1455916,
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"covering": false,
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"chosen": true
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}
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@ -630,10 +630,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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{
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"index": "key3",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 10.314,
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"disk_sweep_cost": 1923.1,
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"cumulative_total_cost": 1933.5,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 10.31393703,
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"disk_sweep_cost": 1923.144061,
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"cumulative_total_cost": 1933.457998,
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"usable": true,
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"matching_rows_now": 2243,
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"intersect_covering_with_this_index": false,
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@ -642,12 +642,12 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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{
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"index": "key4",
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"index_scan_cost": 10.314,
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"cumulated_index_scan_cost": 20.628,
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"disk_sweep_cost": 84.518,
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"cumulative_total_cost": 105.15,
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"index_scan_cost": 10.31393703,
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"cumulated_index_scan_cost": 20.62787405,
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"disk_sweep_cost": 84.51771758,
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"cumulative_total_cost": 105.1455916,
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"usable": true,
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"matching_rows_now": 77.636,
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"matching_rows_now": 77.6360508,
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"intersect_covering_with_this_index": false,
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"chosen": true
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}
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@ -658,13 +658,13 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
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"cause": "no clustered pk index"
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},
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"rows": 77,
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"cost": 105.15,
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"cost": 105.1455916,
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"covering": false,
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"chosen": true
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}
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}
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],
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"index_roworder_union_cost": 194.98,
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"index_roworder_union_cost": 194.9771115,
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"members": 2,
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"chosen": true
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}
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@ -685,7 +685,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
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{
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"type": "index_roworder_intersect",
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"rows": 77,
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"cost": 105.15,
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"cost": 105.1455916,
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"covering": false,
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"clustered_pk_scan": false,
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"intersect_of":
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@ -716,7 +716,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
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{
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"type": "index_roworder_intersect",
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"rows": 77,
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"cost": 105.15,
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"cost": 105.1455916,
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"covering": false,
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"clustered_pk_scan": false,
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"intersect_of":
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@ -746,7 +746,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
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]
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},
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"rows_for_plan": 154,
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"cost_for_plan": 194.98,
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"cost_for_plan": 194.9771115,
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"chosen": true
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}
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]
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