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MDEV-27036: resolve duplicated key issues of JSON tracing outputs:

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MDEV-27036: repeated "table" key resolve for print_explain_json

MDEV-27036: duplicated keys in best_access_path

MDEV-27036: Explain_aggr_filesort::print_json_members: resolve duplicated "filesort" member in Json object

MDEV-27036: Explain_basic_join::
            print_explain_json_interns fixed start_dups_weedout case for main.explain_json test
This commit is contained in:
Sergei Krivonos
2021-11-14 09:48:20 +02:00
committed by Sergei Krivonos
parent a01c82ef2e
commit 73df7a3009
39 changed files with 22848 additions and 17574 deletions
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68
mysql-test/main/explain_json_innodb.result
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@ -16,39 +16,49 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 2,
"filtered": 100
},
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 2,
"filtered": 100
}
}
],
"subqueries": [
{
"query_block": {
"select_id": 2,
"table": {
"table_name": "tbl_alias1",
"access_type": "ALL",
"rows": 1,
"filtered": 100,
"attached_condition": "tbl_alias1.column_name_2 is not null and tbl_alias1.column_name_1 is not null"
},
"table": {
"table_name": "tbl_alias2",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY"],
"key": "PRIMARY",
"key_length": "9",
"used_key_parts": ["c", "b"],
"ref": [
"test.tbl_alias1.column_name_2",
"test.tbl_alias1.column_name_1"
],
"rows": 1,
"filtered": 100,
"attached_condition": "tbl_alias2.c = tbl_alias1.column_name_2",
"using_index": true
}
"nested_loop": [
{
"table": {
"table_name": "tbl_alias1",
"access_type": "ALL",
"rows": 1,
"filtered": 100,
"attached_condition": "tbl_alias1.column_name_2 is not null and tbl_alias1.column_name_1 is not null"
}
},
{
"table": {
"table_name": "tbl_alias2",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY"],
"key": "PRIMARY",
"key_length": "9",
"used_key_parts": ["c", "b"],
"ref": [
"test.tbl_alias1.column_name_2",
"test.tbl_alias1.column_name_1"
],
"rows": 1,
"filtered": 100,
"attached_condition": "tbl_alias2.c = tbl_alias1.column_name_2",
"using_index": true
}
}
]
}
}
]