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MDEV-18144: ANALYZE for statement support for PK filters

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ANALYZE and ANALYZE FORMAT=JSON structures are changed in the way that they
show additional information when rowid filter is used:

- r_selectivity_pct - the observed filter selectivity
- r_buffer_size - the size of the rowid filter container buffer
- r_filling_time_ms - how long it took to fill rowid filter container

New class Rowid_filter_tracker was added. This class is needed to collect data
about how rowid filter is executed.
This commit is contained in:
Galina Shalygina
2019-02-06 23:40:07 +03:00
parent e299ae5b07
commit 447e0f023f
11 changed files with 636 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mysql-test/include/analyze-format.inc
View File

@ -1,3 +1,3 @@
# The time on ANALYSE FORMAT=JSON is rather variable
--replace_regex /("(r_total_time_ms|r_buffer_size)": )[^, \n]*/\1"REPLACED"/
--replace_regex /("(r_total_time_ms|r_buffer_size|r_filling_time_ms)": )[^, \n]*/\1"REPLACED"/

472
mysql-test/main/rowid_filter.result
View File

@ -58,7 +58,7 @@ set statement optimizer_switch='rowid_filter=on' for EXPLAIN SELECT l_orderkey,
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE lineitem range|filter i_l_shipdate,i_l_quantity i_l_shipdate|i_l_quantity 4|9 NULL 509 (11%) Using index condition; Using where; Using filter
1 SIMPLE lineitem range|filter i_l_shipdate,i_l_quantity i_l_shipdate|i_l_quantity 4|9 NULL 509 (11%) Using index condition; Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
@ -88,6 +88,50 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=on' for ANALYZE SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE lineitem range|filter i_l_shipdate,i_l_quantity i_l_shipdate|i_l_quantity 4|9 NULL 509 (11%) 60.00 (3%) 11.02 100.00 Using index condition; Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "lineitem",
"access_type": "range",
"possible_keys": ["i_l_shipdate", "i_l_quantity"],
"key": "i_l_shipdate",
"key_length": "4",
"used_key_parts": ["l_shipDATE"],
"rowid_filter": {
"range": {
"key": "i_l_quantity",
"used_key_parts": ["l_quantity"]
},
"rows": 662,
"selectivity_pct": 11.024,
"r_rows": 605,
"r_selectivity_pct": 3.6855,
"r_buffer_size": "REPLACED",
"r_filling_time_ms": "REPLACED"
},
"r_loops": 1,
"rows": 509,
"r_rows": 60,
"r_total_time_ms": "REPLACED",
"filtered": 11.024,
"r_filtered": 100,
"index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
"attached_condition": "lineitem.l_quantity > 45"
}
}
}
set statement optimizer_switch='rowid_filter=on' for SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
@ -178,6 +222,38 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=off' for ANALYZE SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE lineitem range i_l_shipdate,i_l_quantity i_l_shipdate 4 NULL 509 510.00 11.02 11.76 Using index condition; Using where
set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "lineitem",
"access_type": "range",
"possible_keys": ["i_l_shipdate", "i_l_quantity"],
"key": "i_l_shipdate",
"key_length": "4",
"used_key_parts": ["l_shipDATE"],
"r_loops": 1,
"rows": 509,
"r_rows": 510,
"r_total_time_ms": "REPLACED",
"filtered": 11.024,
"r_filtered": 11.765,
"index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
"attached_condition": "lineitem.l_quantity > 45"
}
}
}
set statement optimizer_switch='rowid_filter=off' for SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45;
@ -248,7 +324,7 @@ WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
o_totalprice between 200000 and 230000;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE lineitem range PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate 4 NULL 98 Using index condition
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_totalprice PRIMARY|i_o_totalprice 4|9 dbt3_s001.lineitem.l_orderkey 1 (5%) Using where; Using filter
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_totalprice PRIMARY|i_o_totalprice 4|9 dbt3_s001.lineitem.l_orderkey 1 (5%) Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
@ -295,6 +371,73 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=on' for ANALYZE SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
o_totalprice between 200000 and 230000;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE lineitem range PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate 4 NULL 98 98.00 100.00 100.00 Using index condition
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_totalprice PRIMARY|i_o_totalprice 4|9 dbt3_s001.lineitem.l_orderkey 1 (5%) 0.11 (10%) 5.40 100.00 Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
o_totalprice between 200000 and 230000;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "lineitem",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"i_l_shipdate",
"i_l_orderkey",
"i_l_orderkey_quantity"
],
"key": "i_l_shipdate",
"key_length": "4",
"used_key_parts": ["l_shipDATE"],
"r_loops": 1,
"rows": 98,
"r_rows": 98,
"r_total_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100,
"index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-01-31'"
},
"table": {
"table_name": "orders",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY", "i_o_totalprice"],
"key": "PRIMARY",
"key_length": "4",
"used_key_parts": ["o_orderkey"],
"ref": ["dbt3_s001.lineitem.l_orderkey"],
"rowid_filter": {
"range": {
"key": "i_o_totalprice",
"used_key_parts": ["o_totalprice"]
},
"rows": 81,
"selectivity_pct": 5.4,
"r_rows": 71,
"r_selectivity_pct": 10.417,
"r_buffer_size": "REPLACED",
"r_filling_time_ms": "REPLACED"
},
"r_loops": 98,
"rows": 1,
"r_rows": 0.1122,
"r_total_time_ms": "REPLACED",
"filtered": 5.4,
"r_filtered": 100,
"attached_condition": "orders.o_totalprice between 200000 and 230000"
}
}
}
set statement optimizer_switch='rowid_filter=on' for SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
@ -356,6 +499,61 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=off' for ANALYZE SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
o_totalprice between 200000 and 230000;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE lineitem range PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate 4 NULL 98 98.00 100.00 100.00 Using index condition
1 SIMPLE orders eq_ref PRIMARY,i_o_totalprice PRIMARY 4 dbt3_s001.lineitem.l_orderkey 1 1.00 5.40 11.22 Using where
set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
o_totalprice between 200000 and 230000;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "lineitem",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"i_l_shipdate",
"i_l_orderkey",
"i_l_orderkey_quantity"
],
"key": "i_l_shipdate",
"key_length": "4",
"used_key_parts": ["l_shipDATE"],
"r_loops": 1,
"rows": 98,
"r_rows": 98,
"r_total_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100,
"index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-01-31'"
},
"table": {
"table_name": "orders",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY", "i_o_totalprice"],
"key": "PRIMARY",
"key_length": "4",
"used_key_parts": ["o_orderkey"],
"ref": ["dbt3_s001.lineitem.l_orderkey"],
"r_loops": 98,
"rows": 1,
"r_rows": 1,
"r_total_time_ms": "REPLACED",
"filtered": 5.4,
"r_filtered": 11.224,
"attached_condition": "orders.o_totalprice between 200000 and 230000"
}
}
}
set statement optimizer_switch='rowid_filter=off' for SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
@ -378,8 +576,8 @@ WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45 AND
o_totalprice between 180000 and 230000;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE lineitem range|filter PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity i_l_shipdate|i_l_quantity 4|9 NULL 509 (11%) Using index condition; Using where; Using filter
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_totalprice PRIMARY|i_o_totalprice 4|9 dbt3_s001.lineitem.l_orderkey 1 (10%) Using where; Using filter
1 SIMPLE lineitem range|filter PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity i_l_shipdate|i_l_quantity 4|9 NULL 509 (11%) Using index condition; Using where; Using rowid filter
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_totalprice PRIMARY|i_o_totalprice 4|9 dbt3_s001.lineitem.l_orderkey 1 (10%) Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@ -437,6 +635,89 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=on' for ANALYZE SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45 AND
o_totalprice between 180000 and 230000;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE lineitem range|filter PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity i_l_shipdate|i_l_quantity 4|9 NULL 509 (11%) 60.00 (3%) 11.02 100.00 Using index condition; Using where; Using rowid filter
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_totalprice PRIMARY|i_o_totalprice 4|9 dbt3_s001.lineitem.l_orderkey 1 (10%) 0.27 (25%) 10.13 100.00 Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45 AND
o_totalprice between 180000 and 230000;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "lineitem",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"i_l_shipdate",
"i_l_orderkey",
"i_l_orderkey_quantity",
"i_l_quantity"
],
"key": "i_l_shipdate",
"key_length": "4",
"used_key_parts": ["l_shipDATE"],
"rowid_filter": {
"range": {
"key": "i_l_quantity",
"used_key_parts": ["l_quantity"]
},
"rows": 662,
"selectivity_pct": 11.024,
"r_rows": 605,
"r_selectivity_pct": 3.6855,
"r_buffer_size": "REPLACED",
"r_filling_time_ms": "REPLACED"
},
"r_loops": 1,
"rows": 509,
"r_rows": 60,
"r_total_time_ms": "REPLACED",
"filtered": 11.024,
"r_filtered": 100,
"index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
"attached_condition": "lineitem.l_quantity > 45"
},
"table": {
"table_name": "orders",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY", "i_o_totalprice"],
"key": "PRIMARY",
"key_length": "4",
"used_key_parts": ["o_orderkey"],
"ref": ["dbt3_s001.lineitem.l_orderkey"],
"rowid_filter": {
"range": {
"key": "i_o_totalprice",
"used_key_parts": ["o_totalprice"]
},
"rows": 152,
"selectivity_pct": 10.133,
"r_rows": 144,
"r_selectivity_pct": 25.424,
"r_buffer_size": "REPLACED",
"r_filling_time_ms": "REPLACED"
},
"r_loops": 60,
"rows": 1,
"r_rows": 0.2667,
"r_total_time_ms": "REPLACED",
"filtered": 10.133,
"r_filtered": 100,
"attached_condition": "orders.o_totalprice between 180000 and 230000"
}
}
}
set statement optimizer_switch='rowid_filter=on' for SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@ -508,6 +789,65 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=off' for ANALYZE SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45 AND
o_totalprice between 180000 and 230000;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE lineitem range PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity i_l_shipdate 4 NULL 509 510.00 11.02 11.76 Using index condition; Using where
1 SIMPLE orders eq_ref PRIMARY,i_o_totalprice PRIMARY 4 dbt3_s001.lineitem.l_orderkey 1 1.00 10.13 26.67 Using where
set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
l_quantity > 45 AND
o_totalprice between 180000 and 230000;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "lineitem",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"i_l_shipdate",
"i_l_orderkey",
"i_l_orderkey_quantity",
"i_l_quantity"
],
"key": "i_l_shipdate",
"key_length": "4",
"used_key_parts": ["l_shipDATE"],
"r_loops": 1,
"rows": 509,
"r_rows": 510,
"r_total_time_ms": "REPLACED",
"filtered": 11.024,
"r_filtered": 11.765,
"index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
"attached_condition": "lineitem.l_quantity > 45"
},
"table": {
"table_name": "orders",
"access_type": "eq_ref",
"possible_keys": ["PRIMARY", "i_o_totalprice"],
"key": "PRIMARY",
"key_length": "4",
"used_key_parts": ["o_orderkey"],
"ref": ["dbt3_s001.lineitem.l_orderkey"],
"r_loops": 60,
"rows": 1,
"r_rows": 1,
"r_total_time_ms": "REPLACED",
"filtered": 10.133,
"r_filtered": 26.667,
"attached_condition": "orders.o_totalprice between 180000 and 230000"
}
}
}
set statement optimizer_switch='rowid_filter=off' for SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@ -536,7 +876,7 @@ WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
o_totalprice between 200000 and 230000;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE orders range PRIMARY,i_o_totalprice i_o_totalprice 9 NULL 81 Using index condition
1 SIMPLE lineitem ref|filter PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY|i_l_shipdate 4|4 dbt3_s001.orders.o_orderkey 4 (8%) Using where; Using filter
1 SIMPLE lineitem ref|filter PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY|i_l_shipdate 4|4 dbt3_s001.orders.o_orderkey 4 (8%) Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@ -583,6 +923,73 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=on' for ANALYZE SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
o_totalprice between 200000 and 230000;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE orders range PRIMARY,i_o_totalprice i_o_totalprice 9 NULL 81 71.00 100.00 100.00 Using index condition
1 SIMPLE lineitem ref|filter PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY|i_l_shipdate 4|4 dbt3_s001.orders.o_orderkey 4 (8%) 0.52 (7%) 8.48 100.00 Using where; Using rowid filter
set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
o_totalprice between 200000 and 230000;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "orders",
"access_type": "range",
"possible_keys": ["PRIMARY", "i_o_totalprice"],
"key": "i_o_totalprice",
"key_length": "9",
"used_key_parts": ["o_totalprice"],
"r_loops": 1,
"rows": 81,
"r_rows": 71,
"r_total_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100,
"index_condition": "orders.o_totalprice between 200000 and 230000"
},
"table": {
"table_name": "lineitem",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"i_l_shipdate",
"i_l_orderkey",
"i_l_orderkey_quantity"
],
"key": "PRIMARY",
"key_length": "4",
"used_key_parts": ["l_orderkey"],
"ref": ["dbt3_s001.orders.o_orderkey"],
"rowid_filter": {
"range": {
"key": "i_l_shipdate",
"used_key_parts": ["l_shipDATE"]
},
"rows": 509,
"selectivity_pct": 8.4763,
"r_rows": 510,
"r_selectivity_pct": 7.7731,
"r_buffer_size": "REPLACED",
"r_filling_time_ms": "REPLACED"
},
"r_loops": 71,
"rows": 4,
"r_rows": 0.5211,
"r_total_time_ms": "REPLACED",
"filtered": 8.4763,
"r_filtered": 100,
"attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'"
}
}
}
set statement optimizer_switch='rowid_filter=on' for SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@ -670,6 +1077,61 @@ EXPLAIN
}
}
}
set statement optimizer_switch='rowid_filter=off' for ANALYZE SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
o_totalprice between 200000 and 230000;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE orders range PRIMARY,i_o_totalprice i_o_totalprice 9 NULL 81 71.00 100.00 100.00 Using index condition
1 SIMPLE lineitem ref PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY 4 dbt3_s001.orders.o_orderkey 4 6.70 8.48 7.77 Using where
set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
o_totalprice between 200000 and 230000;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "orders",
"access_type": "range",
"possible_keys": ["PRIMARY", "i_o_totalprice"],
"key": "i_o_totalprice",
"key_length": "9",
"used_key_parts": ["o_totalprice"],
"r_loops": 1,
"rows": 81,
"r_rows": 71,
"r_total_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100,
"index_condition": "orders.o_totalprice between 200000 and 230000"
},
"table": {
"table_name": "lineitem",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"i_l_shipdate",
"i_l_orderkey",
"i_l_orderkey_quantity"
],
"key": "PRIMARY",
"key_length": "4",
"used_key_parts": ["l_orderkey"],
"ref": ["dbt3_s001.orders.o_orderkey"],
"r_loops": 71,
"rows": 4,
"r_rows": 6.7042,
"r_total_time_ms": "REPLACED",
"filtered": 8.4763,
"r_filtered": 7.7731,
"attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'"
}
}
}
set statement optimizer_switch='rowid_filter=off' for SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
FROM orders JOIN lineitem ON o_orderkey=l_orderkey
WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND

24
mysql-test/main/rowid_filter.test
View File

@ -46,11 +46,17 @@ SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
eval $with_filter EXPLAIN $q1;
eval $with_filter EXPLAIN FORMAT=JSON $q1;
eval $with_filter ANALYZE $q1;
--source include/analyze-format.inc
eval $with_filter ANALYZE FORMAT=JSON $q1;
--sorted_result
eval $with_filter $q1;
eval $without_filter EXPLAIN $q1;
eval $without_filter EXPLAIN FORMAT=JSON $q1;
eval $without_filter ANALYZE $q1;
--source include/analyze-format.inc
eval $without_filter ANALYZE FORMAT=JSON $q1;
--sorted_result
eval $without_filter $q1;
@ -62,11 +68,17 @@ SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
eval $with_filter EXPLAIN $q2;
eval $with_filter EXPLAIN FORMAT=JSON $q2;
eval $with_filter ANALYZE $q2;
--source include/analyze-format.inc
eval $with_filter ANALYZE FORMAT=JSON $q2;
--sorted_result
eval $with_filter $q2;
eval $without_filter EXPLAIN $q2;
eval $without_filter EXPLAIN FORMAT=JSON $q2;
eval $without_filter ANALYZE $q2;
--source include/analyze-format.inc
eval $without_filter ANALYZE FORMAT=JSON $q2;
--sorted_result
eval $without_filter $q2;
@ -79,11 +91,17 @@ SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
eval $with_filter EXPLAIN $q3;
eval $with_filter EXPLAIN FORMAT=JSON $q3;
eval $with_filter ANALYZE $q3;
--source include/analyze-format.inc
eval $with_filter ANALYZE FORMAT=JSON $q3;
--sorted_result
eval $with_filter $q3;
eval $without_filter EXPLAIN $q3;
eval $without_filter EXPLAIN FORMAT=JSON $q3;
eval $without_filter ANALYZE $q3;
--source include/analyze-format.inc
eval $without_filter ANALYZE FORMAT=JSON $q3;
--sorted_result
eval $without_filter $q3;
@ -95,11 +113,17 @@ SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
eval $with_filter EXPLAIN $q4;
eval $with_filter EXPLAIN FORMAT=JSON $q4;
eval $with_filter ANALYZE $q4;
--source include/analyze-format.inc
eval $with_filter ANALYZE FORMAT=JSON $q4;
--sorted_result
eval $with_filter $q4;
eval $without_filter EXPLAIN $q4;
eval $without_filter EXPLAIN FORMAT=JSON $q4;
eval $without_filter ANALYZE $q4;
--source include/analyze-format.inc
eval $without_filter ANALYZE FORMAT=JSON $q4;
--sorted_result
eval $without_filter $q4;

1
sql/handler.h
View File

@ -3014,6 +3014,7 @@ private:
Exec_time_tracker *tracker;
public:
void set_time_tracker(Exec_time_tracker *tracker_arg) { tracker=tracker_arg;}
Exec_time_tracker *get_time_tracker() { return tracker; }
Item *pushed_idx_cond;
uint pushed_idx_cond_keyno; /* The index which the above condition is for */

3
sql/rowid_filter.cc
View File

@ -478,6 +478,8 @@ bool Range_rowid_filter::fill()
file->position(quick->record);
if (container->add(NULL, (char*) file->ref))
rc= 1;
else
tracker->increment_container_elements_count();
}
}
@ -488,6 +490,7 @@ bool Range_rowid_filter::fill()
file->pushed_idx_cond= pushed_idx_cond_save;
file->pushed_idx_cond_keyno= pushed_idx_cond_keyno_save;
file->in_range_check_pushed_down= in_range_check_pushed_down_save;
tracker->report_container_buff_size(table->file->ref_length);
if (rc != HA_ERR_END_OF_FILE)
return 1;

12
sql/rowid_filter.h
View File

@ -211,6 +211,8 @@ protected:
/* The container to store info the set of elements in the filter */
Rowid_filter_container *container;
Rowid_filter_tracker *tracker;
public:
Rowid_filter(Rowid_filter_container *container_arg)
: container(container_arg) {}
@ -230,6 +232,9 @@ public:
virtual ~Rowid_filter() {}
Rowid_filter_container *get_container() { return container; }
void set_tracker(Rowid_filter_tracker *track_arg) { tracker= track_arg; }
Rowid_filter_tracker *get_tracker() { return tracker; }
};
@ -261,7 +266,12 @@ public:
bool build() { return fill(); }
bool check(char *elem) { return container->check(table, elem); }
bool check(char *elem)
{
bool was_checked= container->check(table, elem);
tracker->increment_checked_elements_count(was_checked);
return was_checked;
}
bool fill();

79
sql/sql_analyze_stmt.h
View File

@ -284,3 +284,82 @@ private:
ulonglong sort_buffer_size;
};
/**
A class to collect data about how rowid filter is executed.
It stores information about how rowid filter container is filled,
containers size and observed selectivity.
The observed selectivity is calculated in this way.
Some elements elem_set are checked if they belong to container.
Observed selectivity is calculated as the count of elem_set
elements that belong to container devided by all elem_set elements.
*/
class Rowid_filter_tracker : public Sql_alloc
{
private:
/* A member to track the time to fill the rowid filter */
Time_and_counter_tracker time_tracker;
/* Size of the rowid filter container buffer */
size_t container_buff_size;
/* Count of elements that were used to fill the rowid filter container */
uint container_elements;
/* Elements counts used for observed selectivity calculation */
uint n_checks;
uint n_positive_checks;
public:
Rowid_filter_tracker(bool do_timing) :
time_tracker(do_timing), container_buff_size(0),
container_elements(0), n_checks(0), n_positive_checks(0)
{}
inline void start_tracking()
{
ANALYZE_START_TRACKING(&time_tracker);
}
inline void stop_tracking()
{
ANALYZE_STOP_TRACKING(&time_tracker);
}
/* Save container buffer size in bytes */
inline void report_container_buff_size(uint elem_size)
{
container_buff_size= container_elements * elem_size / 8;
}
Time_and_counter_tracker *get_time_tracker()
{
return &time_tracker;
}
double get_time_fill_container_ms()
{
return time_tracker.get_time_ms();
}
void increment_checked_elements_count(bool was_checked)
{
n_checks++;
if (was_checked)
n_positive_checks++;
}
inline void increment_container_elements_count() { container_elements++; }
uint get_container_elements() { return container_elements; }
double get_r_selectivity_pct()
{
return (double)n_positive_checks/(double)n_checks;
}
size_t get_container_buff_size() { return container_buff_size; }
};

2
sql/sql_class.cc
View File

@ -2728,7 +2728,7 @@ void THD::make_explain_field_list(List<Item> &field_list, uint8 explain_flags,
if (is_analyze)
{
field_list.push_back(item= new (mem_root)
Item_float(this, "r_rows", 0.1234, 10, 4),
Item_empty_string(this, "r_rows", NAME_CHAR_LEN, cs),
mem_root);
item->maybe_null=1;
}

34
sql/sql_explain.cc
View File

@ -1324,6 +1324,7 @@ int Explain_table_access::print_explain(select_result_sink *output, uint8 explai
item_list.push_back(item_null, mem_root);
/* `r_rows` */
StringBuffer<64> r_rows_str;
if (is_analyze)
{
if (!tracker.has_scans())
@ -1333,8 +1334,19 @@ int Explain_table_access::print_explain(select_result_sink *output, uint8 explai
else
{
double avg_rows= tracker.get_avg_rows();
item_list.push_back(new (mem_root) Item_float(thd, avg_rows, 2),
mem_root);
Item_float *fl= new (mem_root) Item_float(thd, avg_rows, 2);
String tmp;
String *res= fl->val_str(&tmp);
r_rows_str.append(res->ptr());
if (rowid_filter)
{
r_rows_str.append(" (");
r_rows_str.append_ulonglong(rowid_filter->tracker->get_r_selectivity_pct() * 100.0);
r_rows_str.append("%)");
}
item_list.push_back(new (mem_root)
Item_string_sys(thd, r_rows_str.ptr(),
r_rows_str.length()), mem_root);
}
}
@ -1404,7 +1416,7 @@ int Explain_table_access::print_explain(select_result_sink *output, uint8 explai
first= false;
else
extra_buf.append(STRING_WITH_LEN("; "));
extra_buf.append(STRING_WITH_LEN("Using filter"));
extra_buf.append(STRING_WITH_LEN("Using rowid filter"));
}
item_list.push_back(new (mem_root)
@ -1604,6 +1616,16 @@ void Explain_rowid_filter::print_explain_json(Explain_query *query,
quick->print_json(writer);
writer->add_member("rows").add_ll(rows);
writer->add_member("selectivity_pct").add_double(selectivity * 100.0);
if (is_analyze)
{
writer->add_member("r_rows").add_double(tracker->get_container_elements());
writer->add_member("r_selectivity_pct").
add_double(tracker->get_r_selectivity_pct() * 100.0);
writer->add_member("r_buffer_size").
add_double(tracker->get_container_buff_size());
writer->add_member("r_filling_time_ms").
add_double(tracker->get_time_fill_container_ms());
}
writer->end_object(); // rowid_filter
}
@ -1742,8 +1764,10 @@ void Explain_table_access::print_explain_json(Explain_query *query,
if (op_tracker.get_loops())
{
writer->add_member("r_total_time_ms").
add_double(op_tracker.get_time_ms());
double total_time= op_tracker.get_time_ms();
if (rowid_filter)
total_time+= rowid_filter->tracker->get_time_fill_container_ms();
writer->add_member("r_total_time_ms").add_double(total_time);
}
}

3
sql/sql_explain.h
View File

@ -624,6 +624,9 @@ public:
/* Expected selectivity for the filter */
double selectivity;
/* Tracker with the information about how rowid filter is executed */
Rowid_filter_tracker *tracker;
void print_explain_json(Explain_query *query, Json_writer *writer,
bool is_analyze);

18
sql/sql_select.cc
View File

@ -12619,6 +12619,18 @@ void JOIN_TAB::build_range_rowid_filter_if_needed()
{
if (rowid_filter && !is_rowid_filter_built)
{
/**
The same handler object (table->file) is used to build a filter
and to perfom a primary table access (by the main query).
To estimate the time for filter building tracker should be changed
and after building of the filter has been finished it should be
switched back to the previos tracker.
*/
Exec_time_tracker *table_tracker= table->file->get_time_tracker();
Rowid_filter_tracker *rowid_tracker= rowid_filter->get_tracker();
table->file->set_time_tracker(rowid_tracker->get_time_tracker());
rowid_tracker->start_tracking();
if (!rowid_filter->build())
{
is_rowid_filter_built= true;
@ -12628,6 +12640,8 @@ void JOIN_TAB::build_range_rowid_filter_if_needed()
delete rowid_filter;
rowid_filter= 0;
}
rowid_tracker->stop_tracking();
table->file->set_time_tracker(table_tracker);
}
}
@ -25408,8 +25422,10 @@ bool JOIN_TAB::save_explain_data(Explain_table_access *eta,
erf->quick= quick->get_explain(thd->mem_root);
erf->selectivity= range_rowid_filter_info->selectivity;
erf->rows= quick->records;
if (!(erf->tracker= new Rowid_filter_tracker(thd->lex->analyze_stmt)))
return 1;
rowid_filter->set_tracker(erf->tracker);
eta->rowid_filter= erf;
//psergey-todo: also do setup for ANALYZE here.
}
if (tab_type == JT_NEXT)