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MDEV-30032: EXPLAIN FORMAT=JSON output: print costs

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Basic printout for join and table execution costs.
This commit is contained in:
Sergei Petrunia
2022-11-19 21:00:23 +03:00
parent 657868f5e7
commit ffe0beca25
91 changed files with 3441 additions and 18 deletions
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16
mysql-test/main/brackets.result
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@@ -261,6 +261,7 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"read_sorted_file": {
@@ -270,6 +271,7 @@ EXPLAIN
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@@ -291,6 +293,7 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"read_sorted_file": {
@@ -300,6 +303,7 @@ EXPLAIN
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@@ -329,12 +333,14 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t1.a = 20"
}
@@ -346,12 +352,14 @@ EXPLAIN
"query_block": {
"select_id": 2,
"operation": "UNION",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@@ -383,12 +391,14 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t1.a = 20"
}
@@ -400,12 +410,14 @@ EXPLAIN
"query_block": {
"select_id": 2,
"operation": "UNION",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@@ -445,6 +457,7 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"read_sorted_file": {
@@ -454,6 +467,7 @@ EXPLAIN
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@@ -466,12 +480,14 @@ EXPLAIN
"query_block": {
"select_id": 2,
"operation": "UNION",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t1.pk > 4"
}