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MDEV-19160 JSON_DETAILED output unnecessarily verbose

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Weijun-H
2023-01-04 18:44:03 +00:00
parent fb0808c450
commit 111a752b96
8 changed files with 327 additions and 279 deletions
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100
mysql-test/main/func_json.test
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@ -718,3 +718,103 @@ DROP TABLE t1;
--echo #
--echo # End of 10.4 tests
--echo #
--echo #
--echo # MDEV-19160 JSON_DETAILED output unnecessarily verbose
--echo #
create table t200 (a text);
insert into t200 values
('{
"steps": [
{
"join_optimization": {
"select_id": 1,
"steps": [
{
"rows_estimation": [
{
"table": "t1",
"range_analysis": {
"table_scan": {
"rows": 1000,
"cost": 2e308
},
"potential_range_indexes": [
{
"index": "a_b",
"usable": true,
"key_parts": ["a", "b"]
}
],
"best_covering_index_scan": {
"index": "a_b",
"cost": 52.195,
"chosen": true
},
"setup_range_conditions": [],
"group_index_range": {
"chosen": false,
"cause": "no group by or distinct"
},
"analyzing_range_alternatives": {
"range_scan_alternatives": [
{
"index": "a_b",
"ranges": ["2 <= a <= 2 AND 4 <= b <= 4", "123"],
"rowid_ordered": true,
"using_mrr": false,
"index_only": true,
"rows": 1,
"cost": 1.1752,
"chosen": true
}
],
"analyzing_roworder_intersect": {
"cause": "too few roworder scans"
},
"analyzing_index_merge_union": [],
"test_one_line_array":["123"]
},
"chosen_range_access_summary": {
"range_access_plan": {
"type": "range_scan",
"index": "a_b",
"rows": 1,
"ranges": ["2 <= a <= 2 AND 4 <= b <= 4"]
},
"rows_for_plan": 1,
"cost_for_plan": 1.1752,
"chosen": true
}
}
},
{
"selectivity_for_indexes": [
{
"index_name": "a_b",
"selectivity_from_index": 0.001
}
],
"selectivity_for_columns": [],
"cond_selectivity": 0.001
}
]
}
]
}
},
{
"join_execution": {
"select_id": 1,
"steps": []
}
}
]
}');
select JSON_DETAILED(JSON_EXTRACT(a, '$**.analyzing_range_alternatives')) from t200;
select JSON_LOOSE(JSON_EXTRACT(a, '$**.analyzing_range_alternatives')) from t200;