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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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78
mysql-test/main/show_explain_json.result
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@ -47,6 +47,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
@ -57,6 +58,7 @@ SHOW EXPLAIN
"key_length": "5",
"used_key_parts": ["a"],
"rows": 999,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t1.a < 100000",
"using_index": true
@ -77,6 +79,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
@ -87,6 +90,7 @@ SHOW EXPLAIN
"key_length": "5",
"used_key_parts": ["a"],
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"index_condition": "t1.a < 10"
}
@ -106,6 +110,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
@ -116,6 +121,7 @@ SHOW EXPLAIN
"key_length": "5",
"used_key_parts": ["a"],
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"index_condition": "t1.a < 10"
}
@ -138,6 +144,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
@ -148,6 +155,7 @@ SHOW EXPLAIN
"key_length": "5",
"used_key_parts": ["a"],
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"index_condition": "t1.a < 10",
"mrr_type": "Rowid-ordered scan"
@ -169,6 +177,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
@ -179,6 +188,7 @@ SHOW EXPLAIN
"key_length": "5",
"used_key_parts": ["a"],
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"index_condition": "t1.a < 10",
"mrr_type": "Rowid-ordered scan"
@ -210,12 +220,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "A",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -226,12 +238,14 @@ SHOW EXPLAIN
"query_block": {
"select_id": 2,
"operation": "UNION",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "B",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -266,12 +280,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "A",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -282,12 +298,14 @@ SHOW EXPLAIN
"query_block": {
"select_id": 2,
"operation": "UNION",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "B",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -378,12 +396,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "a",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "a.a < 1"
}
@ -394,12 +414,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "b",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "b.a + a.a < 10"
}
@ -427,12 +449,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "a",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "a.a < 1"
}
@ -443,12 +467,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "b",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "b.a + a.a < 10"
}
@ -476,12 +502,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "a",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "a.a < 1"
}
@ -492,12 +520,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "b",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "b.a + a.a < 10"
}
@ -552,12 +582,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -586,12 +618,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -628,12 +662,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -662,12 +698,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -707,12 +745,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -741,12 +781,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -786,12 +828,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -820,12 +864,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -854,12 +900,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -869,12 +917,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -893,12 +943,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -908,12 +960,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -932,12 +986,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -947,12 +1003,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -986,12 +1044,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -1001,12 +1061,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -1025,12 +1087,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -1040,12 +1104,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -1064,12 +1130,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -1079,12 +1147,14 @@ SHOW EXPLAIN
"expression_cache": {
"query_block": {
"select_id": 2,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t2.a + t0.a < 3"
}
@ -1120,6 +1190,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"read_sorted_file": {
@ -1129,6 +1200,7 @@ SHOW EXPLAIN
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -1169,6 +1241,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"temporary_table": {
"nested_loop": [
{
@ -1176,6 +1249,7 @@ SHOW EXPLAIN
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -1215,6 +1289,7 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"temporary_table": {
"nested_loop": [
{
@ -1222,6 +1297,7 @@ SHOW EXPLAIN
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -1264,12 +1340,14 @@ SHOW EXPLAIN
{
"query_block": {
"select_id": 1,
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t0",
"access_type": "ALL",
"rows": 10,
"cost": "COST_REPLACED",
"filtered": 100,
"attached_condition": "t0.a = <cache>(octet_length('гы'))"
}