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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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26
mysql-test/main/set_operation.result
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@ -571,12 +571,14 @@ EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
}
@ -587,12 +589,14 @@ EXPLAIN
"query_block": {
"select_id": 8,
"operation": "UNION",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "<derived2>",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100,
"materialized": {
"query_block": {
@ -603,12 +607,14 @@ EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 6,
"cost": "REPLACED",
"filtered": 100
}
}
@ -628,12 +634,14 @@ EXPLAIN
"query_block": {
"select_id": 4,
"operation": "INTERSECT",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "<derived5>",
"access_type": "ALL",
"rows": 10,
"cost": "REPLACED",
"filtered": 100,
"materialized": {
"query_block": {
@ -642,12 +650,14 @@ EXPLAIN
{
"query_block": {
"select_id": 5,
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
}
@ -658,12 +668,14 @@ EXPLAIN
"query_block": {
"select_id": 6,
"operation": "UNION",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
}
@ -692,12 +704,14 @@ EXPLAIN
"query_block": {
"select_id": 7,
"operation": "EXCEPT",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t3",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
}
@ -708,12 +722,14 @@ EXPLAIN
"query_block": {
"select_id": 9,
"operation": "UNION",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 6,
"cost": "REPLACED",
"filtered": 100
}
}
@ -724,12 +740,14 @@ EXPLAIN
"query_block": {
"select_id": 10,
"operation": "UNION",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t3",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
}
@ -740,12 +758,14 @@ EXPLAIN
"query_block": {
"select_id": 11,
"operation": "EXCEPT",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
},
@ -755,6 +775,7 @@ EXPLAIN
"table_name": "t2",
"access_type": "ALL",
"rows": 6,
"cost": "REPLACED",
"filtered": 100
},
"buffer_type": "flat",
@ -769,12 +790,14 @@ EXPLAIN
"query_block": {
"select_id": 12,
"operation": "UNION",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100,
"attached_condition": "t1.a < 4"
}
@ -785,6 +808,7 @@ EXPLAIN
"table_name": "t2",
"access_type": "ALL",
"rows": 6,
"cost": "REPLACED",
"filtered": 100
},
"buffer_type": "flat",
@ -799,12 +823,14 @@ EXPLAIN
"query_block": {
"select_id": 13,
"operation": "UNION",
"cost": "REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t3",
"access_type": "ALL",
"rows": 5,
"cost": "REPLACED",
"filtered": 100
}
}