79 lines
2.9 KiB
Plaintext
79 lines
2.9 KiB
Plaintext
set tidb_cost_model_version=1;
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drop table if exists t;
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create table t (a int);
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explain format = 'brief' select * from t where a < 1;
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insert into mysql.opt_rule_blacklist values('predicate_push_down');
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admin reload opt_rule_blacklist;
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explain format = 'brief' select * from t where a < 1;
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delete from mysql.opt_rule_blacklist where name='predicate_push_down';
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admin reload opt_rule_blacklist;
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explain format = 'brief' select * from t where a < 1;
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insert into mysql.expr_pushdown_blacklist values('<', 'tikv,tiflash,tidb', 'for test');
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admin reload expr_pushdown_blacklist;
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explain format = 'brief' select * from t where a < 1;
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delete from mysql.expr_pushdown_blacklist where name='<' and store_type = 'tikv,tiflash,tidb' and reason = 'for test';
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admin reload expr_pushdown_blacklist;
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explain format = 'brief' select * from t where a < 1;
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insert into mysql.expr_pushdown_blacklist values('lt', 'tikv,tiflash,tidb', 'for test');
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admin reload expr_pushdown_blacklist;
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explain format = 'brief' select * from t where a < 1;
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delete from mysql.expr_pushdown_blacklist where name='lt' and store_type = 'tikv,tiflash,tidb' and reason = 'for test';
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admin reload expr_pushdown_blacklist;
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explain format = 'brief' select * from t where a < 1;
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delete from mysql.expr_pushdown_blacklist;
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admin reload expr_pushdown_blacklist;
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# TestExprBlackListForEnum
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drop table if exists t;
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create table t(a enum('a','b','c'), b enum('a','b','c'), c int, index idx(b,a));
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insert into t values(1,1,1),(2,2,2),(3,3,3);
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insert into mysql.expr_pushdown_blacklist(name) values('enum');
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admin reload expr_pushdown_blacklist;
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desc format='brief' select /*+ HASH_AGG() */ max(a) from t;
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desc format='brief' select /*+ STREAM_AGG() */ max(a) from t;
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delete from mysql.expr_pushdown_blacklist;
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admin reload expr_pushdown_blacklist;
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desc format='brief' select /*+ HASH_AGG() */ max(a) from t;
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desc format='brief' select /*+ STREAM_AGG() */ max(a) from t;
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insert into mysql.expr_pushdown_blacklist(name) values('enum');
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admin reload expr_pushdown_blacklist;
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desc format='brief' select * from t where a + b;
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desc format='brief' select * from t where a + b;
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delete from mysql.expr_pushdown_blacklist;
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admin reload expr_pushdown_blacklist;
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desc format='brief' select * from t where a + b;
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desc format='brief' select * from t where a + b;
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insert into mysql.expr_pushdown_blacklist(name) values('enum');
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admin reload expr_pushdown_blacklist;
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desc format='brief' select * from t where b = 1;
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desc format='brief' select * from t where b = 'a';
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desc format='brief' select * from t where b > 1;
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desc format='brief' select * from t where b > 'a';
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delete from mysql.expr_pushdown_blacklist;
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admin reload expr_pushdown_blacklist;
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desc format='brief' select * from t where b = 1 and a = 1;
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desc format='brief' select * from t where b = 'a' and a = 'a';
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desc format='brief' select * from t where b = 1 and a > 1;
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desc format='brief' select * from t where b = 1 and a > 'a';
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