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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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152
mysql-test/main/brackets.result
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@@ -261,17 +261,21 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"read_sorted_file": {
"filesort": {
"sort_key": "t1.a desc",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
"nested_loop": [
{
"read_sorted_file": {
"filesort": {
"sort_key": "t1.a desc",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
}
}
}
]
}
}
(select a from t1 order by a desc) limit 1;
@@ -287,17 +291,21 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"read_sorted_file": {
"filesort": {
"sort_key": "t1.a desc",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
"nested_loop": [
{
"read_sorted_file": {
"filesort": {
"sort_key": "t1.a desc",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
}
}
}
]
}
}
(select a from t1 where a=20 union select a from t1) order by a desc limit 1;
@@ -321,25 +329,33 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100,
"attached_condition": "t1.a = 20"
}
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100,
"attached_condition": "t1.a = 20"
}
}
]
}
},
{
"query_block": {
"select_id": 2,
"operation": "UNION",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
]
}
}
]
@@ -367,25 +383,33 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100,
"attached_condition": "t1.a = 20"
}
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100,
"attached_condition": "t1.a = 20"
}
}
]
}
},
{
"query_block": {
"select_id": 2,
"operation": "UNION",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
]
}
}
]
@@ -421,30 +445,38 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"read_sorted_file": {
"filesort": {
"sort_key": "t1.pk",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"filtered": 100
"nested_loop": [
{
"read_sorted_file": {
"filesort": {
"sort_key": "t1.pk",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"filtered": 100
}
}
}
}
}
]
}
},
{
"query_block": {
"select_id": 2,
"operation": "UNION",
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"filtered": 100,
"attached_condition": "t1.pk > 4"
}
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"filtered": 100,
"attached_condition": "t1.pk > 4"
}
}
]
}
}
]