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

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

View File

@ -51,12 +51,14 @@ 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
}
}
@ -67,12 +69,14 @@ EXPLAIN
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -83,12 +87,14 @@ EXPLAIN
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t3",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
}
@ -115,6 +121,7 @@ ANALYZE
{
"query_block": {
"select_id": 1,
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -125,6 +132,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -138,6 +146,7 @@ ANALYZE
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -148,6 +157,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -161,6 +171,7 @@ ANALYZE
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -171,6 +182,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -192,6 +204,7 @@ ANALYZE
},
"query_block": {
"select_id": 1,
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -202,6 +215,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 1,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -217,6 +231,7 @@ ANALYZE
{
"query_block": {
"select_id": 2,
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -227,6 +242,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -240,6 +256,7 @@ ANALYZE
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -250,6 +267,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -263,6 +281,7 @@ ANALYZE
"query_block": {
"select_id": 4,
"operation": "INTERSECT",
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -273,6 +292,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -346,12 +366,14 @@ 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
}
}
@ -362,12 +384,14 @@ EXPLAIN
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"cost": "COST_REPLACED",
"nested_loop": [
{
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
}
},
@ -377,6 +401,7 @@ EXPLAIN
"table_name": "t3",
"access_type": "ALL",
"rows": 3,
"cost": "COST_REPLACED",
"filtered": 100
},
"buffer_type": "flat",
@ -407,6 +432,7 @@ ANALYZE
{
"query_block": {
"select_id": 1,
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -417,6 +443,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -430,6 +457,7 @@ ANALYZE
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -440,6 +468,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -454,6 +483,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -481,6 +511,7 @@ ANALYZE
},
"query_block": {
"select_id": 1,
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -491,6 +522,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 1,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -506,6 +538,7 @@ ANALYZE
{
"query_block": {
"select_id": 2,
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -516,6 +549,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -529,6 +563,7 @@ ANALYZE
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"nested_loop": [
@ -539,6 +574,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@ -553,6 +589,7 @@ ANALYZE
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,