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MDEV-33533: Crash at execution of DELETE when trying to use rowid filter
(Based on original patch by Oleksandr Byelkin) Multi-table DELETE can execute via "buffered" mode: at phase #1 it collects rowids of rows to be deleted, then at phase #2 in multi_delete::do_deletes() it calls handler->rnd_pos() to read rows to be deleted and deletes them. The problem occurred when phase #1 used Rowid Filter on the table that phase #2 would be deleting from. In InnoDB, h->rnd_init(scan=false) and h->rnd_pos() is an index scan over PK under the hood. So, at phase #2 ha_innobase::rnd_init() would try to use the Rowid Filter and hit an assertion inside ha_innobase::rnd_init(). Note that multi-table UPDATE works similarly but was not affected, because patch for MDEV-7487 added code to disable rowid filter for phase #2 in multi_update::do_updates(). This patch changes the approach: - It makes InnoDB not use Rowid Filter in rnd_pos() scans: it is disabled in ha_innobase::rnd_init() and enabled back in ha_innobase::rnd_end(). - multi_update::do_updates() no longer disables Rowid Filter for phase#2 as it is no longer necessary.
This commit is contained in:
Sergei Petrunia
committed by
Sergei Golubchik
Sergei Golubchik
parent
f0a5412037
commit
fe41171c96
@ -69,4 +69,518 @@ c1
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5
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6
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DROP TABLE t1, t2;
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#
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# MDEV-33533: multi-delete using rowid filter
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#
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set @save_default_storage_engine=@@default_storage_engine;
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set default_storage_engine=InnoDB;
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CREATE DATABASE dbt3_s001;
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use dbt3_s001;
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create index i_n_name on nation(n_name);
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analyze table
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nation, lineitem, customer, orders, part, supplier, partsupp, region
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persistent for all;
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Table Op Msg_type Msg_text
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dbt3_s001.nation analyze status Engine-independent statistics collected
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dbt3_s001.nation analyze status OK
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dbt3_s001.lineitem analyze status Engine-independent statistics collected
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dbt3_s001.lineitem analyze status OK
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dbt3_s001.customer analyze status Engine-independent statistics collected
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dbt3_s001.customer analyze status OK
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dbt3_s001.orders analyze status Engine-independent statistics collected
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dbt3_s001.orders analyze status OK
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dbt3_s001.part analyze status Engine-independent statistics collected
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dbt3_s001.part analyze status OK
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dbt3_s001.supplier analyze status Engine-independent statistics collected
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dbt3_s001.supplier analyze status OK
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dbt3_s001.partsupp analyze status Engine-independent statistics collected
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dbt3_s001.partsupp analyze status OK
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dbt3_s001.region analyze status Engine-independent statistics collected
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dbt3_s001.region analyze status OK
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explain
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE nation ref PRIMARY,i_n_name i_n_name 26 const 1 Using where; Using index
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1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6 Using index
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1 SIMPLE orders ref|filter i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (8%) Using where; Using rowid filter
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explain format=json
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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EXPLAIN
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{
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"query_block": {
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"select_id": 1,
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"cost": "COST_REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "nation",
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"access_type": "ref",
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"possible_keys": ["PRIMARY", "i_n_name"],
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"key": "i_n_name",
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"key_length": "26",
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"used_key_parts": ["n_name"],
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"ref": ["const"],
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"loops": 1,
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"rows": 1,
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"cost": "COST_REPLACED",
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"filtered": 100,
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"attached_condition": "nation.n_name = 'PERU'",
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"using_index": true
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}
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},
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{
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"table": {
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"table_name": "customer",
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"access_type": "ref",
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"possible_keys": ["PRIMARY", "i_c_nationkey"],
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"key": "i_c_nationkey",
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"key_length": "5",
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"used_key_parts": ["c_nationkey"],
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"ref": ["dbt3_s001.nation.n_nationkey"],
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"loops": 1,
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"rows": 6,
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"cost": "COST_REPLACED",
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"filtered": 100,
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"using_index": true
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}
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},
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{
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"table": {
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"table_name": "orders",
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"access_type": "ref",
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"possible_keys": ["i_o_orderdate", "i_o_custkey"],
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"key": "i_o_custkey",
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"key_length": "5",
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"used_key_parts": ["o_custkey"],
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"ref": ["dbt3_s001.customer.c_custkey"],
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"rowid_filter": {
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"range": {
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"key": "i_o_orderdate",
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"used_key_parts": ["o_orderDATE"]
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},
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"rows": 119,
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"selectivity_pct": 7.933333333
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},
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"loops": 6,
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"rows": 15,
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"cost": "COST_REPLACED",
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"filtered": 7.933333397,
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"attached_condition": "orders.o_orderDATE between '1992-01-01' and '1992-06-30'"
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}
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}
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]
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}
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}
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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1729 12137.76
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2880 145761.99
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3142 16030.15
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5095 184583.99
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5121 150334.57
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5382 138423.03
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644 201268.06
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737 12984.85
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create table t as
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select orders.* from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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explain
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delete from orders using orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE nation ref PRIMARY,i_n_name i_n_name 26 const 1 Using where; Using index
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1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6 Using index
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1 SIMPLE orders ref|filter i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (8%) Using where; Using rowid filter
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explain format=json
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delete from orders using orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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EXPLAIN
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{
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"query_block": {
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"select_id": 1,
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"cost": "COST_REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "nation",
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"access_type": "ref",
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"possible_keys": ["PRIMARY", "i_n_name"],
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"key": "i_n_name",
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"key_length": "26",
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"used_key_parts": ["n_name"],
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"ref": ["const"],
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"loops": 1,
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"rows": 1,
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"cost": "COST_REPLACED",
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"filtered": 100,
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"attached_condition": "nation.n_name = 'PERU'",
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"using_index": true
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}
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},
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{
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"table": {
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"table_name": "customer",
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"access_type": "ref",
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"possible_keys": ["PRIMARY", "i_c_nationkey"],
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"key": "i_c_nationkey",
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"key_length": "5",
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"used_key_parts": ["c_nationkey"],
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"ref": ["dbt3_s001.nation.n_nationkey"],
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"loops": 1,
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"rows": 6,
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"cost": "COST_REPLACED",
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"filtered": 100,
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"using_index": true
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}
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},
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{
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"table": {
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"table_name": "orders",
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"access_type": "ref",
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"possible_keys": ["i_o_orderdate", "i_o_custkey"],
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"key": "i_o_custkey",
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"key_length": "5",
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"used_key_parts": ["o_custkey"],
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"ref": ["dbt3_s001.customer.c_custkey"],
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"rowid_filter": {
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"range": {
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"key": "i_o_orderdate",
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"used_key_parts": ["o_orderDATE"]
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},
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"rows": 119,
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"selectivity_pct": 7.933333333
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},
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"loops": 6,
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"rows": 15,
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"cost": "COST_REPLACED",
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"filtered": 7.933333397,
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"attached_condition": "orders.o_orderDATE between '1992-01-01' and '1992-06-30'"
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}
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}
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]
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}
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}
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delete from orders using orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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insert into orders select * from t;
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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1729 12137.76
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2880 145761.99
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3142 16030.15
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5095 184583.99
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5121 150334.57
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5382 138423.03
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644 201268.06
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737 12984.85
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prepare stmt from "
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delete from orders using orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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";
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execute stmt;
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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insert into orders select * from t;
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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1729 12137.76
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2880 145761.99
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3142 16030.15
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5095 184583.99
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5121 150334.57
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5382 138423.03
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644 201268.06
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737 12984.85
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execute stmt;
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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insert into orders select * from t;
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select o_orderkey, o_totalprice from orders, customer, nation where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey = c_custkey and
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c_nationkey = n_nationkey and
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n_name='PERU';
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o_orderkey o_totalprice
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1729 12137.76
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2880 145761.99
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3142 16030.15
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5095 184583.99
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5121 150334.57
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5382 138423.03
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644 201268.06
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737 12984.85
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deallocate prepare stmt;
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drop table t;
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explain
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select o_orderkey, o_totalprice from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey in (select c_custkey from customer
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where c_nationkey in (select n_nationkey from nation
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where n_name='PERU'));
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY nation ref PRIMARY,i_n_name i_n_name 26 const 1 Using where; Using index
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1 PRIMARY customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6 Using index
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1 PRIMARY orders ref|filter i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (8%) Using where; Using rowid filter
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explain format=json
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select o_orderkey, o_totalprice from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey in (select c_custkey from customer
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where c_nationkey in (select n_nationkey from nation
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where n_name='PERU'));
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EXPLAIN
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{
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"query_block": {
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"select_id": 1,
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"cost": "COST_REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "nation",
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"access_type": "ref",
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"possible_keys": ["PRIMARY", "i_n_name"],
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"key": "i_n_name",
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"key_length": "26",
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"used_key_parts": ["n_name"],
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"ref": ["const"],
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"loops": 1,
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"rows": 1,
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"cost": "COST_REPLACED",
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"filtered": 100,
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"attached_condition": "nation.n_name = 'PERU'",
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"using_index": true
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}
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},
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{
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"table": {
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"table_name": "customer",
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"access_type": "ref",
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"possible_keys": ["PRIMARY", "i_c_nationkey"],
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"key": "i_c_nationkey",
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"key_length": "5",
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"used_key_parts": ["c_nationkey"],
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"ref": ["dbt3_s001.nation.n_nationkey"],
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"loops": 1,
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"rows": 6,
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"cost": "COST_REPLACED",
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"filtered": 100,
|
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"using_index": true
|
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}
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},
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{
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"table": {
|
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"table_name": "orders",
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"access_type": "ref",
|
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"possible_keys": ["i_o_orderdate", "i_o_custkey"],
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"key": "i_o_custkey",
|
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"key_length": "5",
|
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"used_key_parts": ["o_custkey"],
|
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"ref": ["dbt3_s001.customer.c_custkey"],
|
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"rowid_filter": {
|
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"range": {
|
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"key": "i_o_orderdate",
|
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"used_key_parts": ["o_orderDATE"]
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},
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"rows": 119,
|
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"selectivity_pct": 7.933333333
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},
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"loops": 6,
|
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"rows": 15,
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||||
"cost": "COST_REPLACED",
|
||||
"filtered": 7.933333397,
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"attached_condition": "orders.o_orderDATE between '1992-01-01' and '1992-06-30'"
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}
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}
|
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]
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}
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}
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select o_orderkey, o_totalprice from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey in (select c_custkey from customer
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where c_nationkey in (select n_nationkey from nation
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where n_name='PERU'));
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o_orderkey o_totalprice
|
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1729 12137.76
|
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2880 145761.99
|
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3142 16030.15
|
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5095 184583.99
|
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5121 150334.57
|
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5382 138423.03
|
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644 201268.06
|
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737 12984.85
|
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create table t as
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select * from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey in (select c_custkey from customer
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where c_nationkey in (select n_nationkey from nation
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where n_name='PERU'));
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explain
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delete from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
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o_custkey in (select c_custkey from customer
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where c_nationkey in (select n_nationkey from nation
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where n_name='PERU'));
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id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY nation ref PRIMARY,i_n_name i_n_name 26 const 1 Using where; Using index
|
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1 PRIMARY customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6 Using index
|
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1 PRIMARY orders ref|filter i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (8%) Using where; Using rowid filter
|
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explain format=json
|
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delete from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
|
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o_custkey in (select c_custkey from customer
|
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where c_nationkey in (select n_nationkey from nation
|
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where n_name='PERU'));
|
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EXPLAIN
|
||||
{
|
||||
"query_block": {
|
||||
"select_id": 1,
|
||||
"cost": "COST_REPLACED",
|
||||
"nested_loop": [
|
||||
{
|
||||
"table": {
|
||||
"table_name": "nation",
|
||||
"access_type": "ref",
|
||||
"possible_keys": ["PRIMARY", "i_n_name"],
|
||||
"key": "i_n_name",
|
||||
"key_length": "26",
|
||||
"used_key_parts": ["n_name"],
|
||||
"ref": ["const"],
|
||||
"loops": 1,
|
||||
"rows": 1,
|
||||
"cost": "COST_REPLACED",
|
||||
"filtered": 100,
|
||||
"attached_condition": "nation.n_name = 'PERU'",
|
||||
"using_index": true
|
||||
}
|
||||
},
|
||||
{
|
||||
"table": {
|
||||
"table_name": "customer",
|
||||
"access_type": "ref",
|
||||
"possible_keys": ["PRIMARY", "i_c_nationkey"],
|
||||
"key": "i_c_nationkey",
|
||||
"key_length": "5",
|
||||
"used_key_parts": ["c_nationkey"],
|
||||
"ref": ["dbt3_s001.nation.n_nationkey"],
|
||||
"loops": 1,
|
||||
"rows": 6,
|
||||
"cost": "COST_REPLACED",
|
||||
"filtered": 100,
|
||||
"using_index": true
|
||||
}
|
||||
},
|
||||
{
|
||||
"table": {
|
||||
"table_name": "orders",
|
||||
"access_type": "ref",
|
||||
"possible_keys": ["i_o_orderdate", "i_o_custkey"],
|
||||
"key": "i_o_custkey",
|
||||
"key_length": "5",
|
||||
"used_key_parts": ["o_custkey"],
|
||||
"ref": ["dbt3_s001.customer.c_custkey"],
|
||||
"rowid_filter": {
|
||||
"range": {
|
||||
"key": "i_o_orderdate",
|
||||
"used_key_parts": ["o_orderDATE"]
|
||||
},
|
||||
"rows": 119,
|
||||
"selectivity_pct": 7.933333333
|
||||
},
|
||||
"loops": 6,
|
||||
"rows": 15,
|
||||
"cost": "COST_REPLACED",
|
||||
"filtered": 7.933333397,
|
||||
"attached_condition": "orders.o_orderDATE between '1992-01-01' and '1992-06-30'"
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
delete from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
|
||||
o_custkey in (select c_custkey from customer
|
||||
where c_nationkey in (select n_nationkey from nation
|
||||
where n_name='PERU'));
|
||||
select o_orderkey, o_totalprice from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
|
||||
o_custkey in (select c_custkey from customer
|
||||
where c_nationkey in (select n_nationkey from nation
|
||||
where n_name='PERU'));
|
||||
o_orderkey o_totalprice
|
||||
insert into orders select * from t;
|
||||
select o_orderkey, o_totalprice from orders where o_orderDATE between '1992-01-01' and '1992-06-30' and
|
||||
o_custkey in (select c_custkey from customer
|
||||
where c_nationkey in (select n_nationkey from nation
|
||||
where n_name='PERU'));
|
||||
o_orderkey o_totalprice
|
||||
1729 12137.76
|
||||
2880 145761.99
|
||||
3142 16030.15
|
||||
5095 184583.99
|
||||
5121 150334.57
|
||||
5382 138423.03
|
||||
644 201268.06
|
||||
737 12984.85
|
||||
drop table t;
|
||||
DROP DATABASE dbt3_s001;
|
||||
set default_storage_engine=@save_default_storage_engine;
|
||||
#
|
||||
# Additional tests of first table and rowid filter
|
||||
#
|
||||
CREATE DATABASE dbt3_s001;
|
||||
use dbt3_s001;
|
||||
set @save_default_storage_engine=@@default_storage_engine;
|
||||
set default_storage_engine=InnoDB;
|
||||
CREATE INDEX i_l_quantity ON lineitem(l_quantity);
|
||||
CREATE INDEX i_o_totalprice ON orders(o_totalprice);
|
||||
ANALYZE TABLE lineitem, orders;
|
||||
Table Op Msg_type Msg_text
|
||||
dbt3_s001.lineitem analyze status Engine-independent statistics collected
|
||||
dbt3_s001.lineitem analyze status OK
|
||||
dbt3_s001.orders analyze status Engine-independent statistics collected
|
||||
dbt3_s001.orders analyze status OK
|
||||
set optimizer_use_condition_selectivity=2;
|
||||
create table second(s_receiptDATE date, filler char(100), key(s_receiptDATE)) ;
|
||||
insert into second select date_add(l_receiptDATE, interval 1 day), 'helllo' from lineitem ;
|
||||
select count(*) from lineitem, second WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND l_quantity > 47 and second.s_receiptDATE = date_add(l_receiptDATE, interval 1 day);
|
||||
count(*)
|
||||
114
|
||||
# lineitem should be first and with "Using rowid filter"
|
||||
explain delete lineitem FROM lineitem, second WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND l_quantity > 47 and second.s_receiptDATE = date_add(l_receiptDATE, interval 1 day);
|
||||
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_quantity|i_l_shipdate 9|4 NULL 349 (8%) Using where; Using rowid filter
|
||||
1 SIMPLE second ref s_receiptDATE s_receiptDATE 4 func 1 Using where; Using index
|
||||
delete lineitem FROM lineitem, second WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND l_quantity > 47 and second.s_receiptDATE = date_add(l_receiptDATE, interval 1 day);
|
||||
# Should be 0
|
||||
select count(*) from lineitem, second WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND l_quantity > 47 and second.s_receiptDATE = date_add(l_receiptDATE, interval 1 day);
|
||||
count(*)
|
||||
0
|
||||
drop database dbt3_s001;
|
||||
set default_storage_engine=@save_default_storage_engine;
|
||||
End of 11.1 tests
|
||||
|
||||
Reference in New Issue
Block a user