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eval create table t1 (a tinyint unsigned not null, primary key(a)) engine=$engine
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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insert into t1 values (255), (254), (253), (252), (1), (2), (128);
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select * from t1 where a=253;
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delete from t1 where a=253;
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eval create table t2 (a tinyint unsigned not null, primary key(a)) engine=$engine
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partition by key (a) partitions 8;
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insert into t2 values (255), (254), (253), (252);
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select * from t2 where a=253;
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delete from t2 where a=253;
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eval insert into t2 values ($count);
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select count(*) from t2;
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eval create table t3 (a tinyint not null, primary key(a)) engine=$engine
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partition by key (a) partitions 7;
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insert into t3 values (127), (126), (125), (124), (-128), (-127), (1), (-1), (0);
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select * from t3 where a=125;
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delete from t3 where a=125;