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be46289855
Test of unsigned BIGINT values Fixes for queries-per-hour Cleanup of replication code (comments and portability fixes) Make most of the binary log code 4G clean Changed syntax for GRANT ... QUERIES PER HOUR
78 lines
2.9 KiB
Text
78 lines
2.9 KiB
Text
select 0,256,00000000000000065536,2147483647,-2147483648,2147483648,+4294967296;
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0 256 00000000000000065536 2147483647 -2147483648 2147483648 +4294967296
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0 256 65536 2147483647 -2147483648 2147483648 4294967296
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select 9223372036854775807,-009223372036854775808;
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9223372036854775807 -009223372036854775808
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9223372036854775807 -9223372036854775808
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select +9999999999999999999,-9999999999999999999;
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+9999999999999999999 -9999999999999999999
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10000000000000000000 -10000000000000000000
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drop table if exists t1;
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create table t1 (a bigint unsigned not null, primary key(a));
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insert into t1 values (18446744073709551615), (0xFFFFFFFFFFFFFFFE);
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select * from t1;
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a
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18446744073709551614
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18446744073709551615
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select * from t1 where a=18446744073709551615;
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a
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18446744073709551615
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select * from t1 where a='18446744073709551615';
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a
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18446744073709551615
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delete from t1 where a=18446744073709551615;
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select * from t1;
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a
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18446744073709551614
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drop table t1;
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create table t1 ( a int not null default 1, big bigint );
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insert into t1 (big) values (-1),(12345678901234567),(9223372036854775807),(18446744073709551615);
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select min(big),max(big),max(big)-1 from t1;
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min(big) max(big) max(big)-1
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-1 9223372036854775807 9223372036854775806
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select min(big),max(big),max(big)-1 from t1 group by a;
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min(big) max(big) max(big)-1
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-1 9223372036854775807 9223372036854775806
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alter table t1 modify big bigint unsigned not null;
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select min(big),max(big),max(big)-1 from t1;
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min(big) max(big) max(big)-1
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12345678901234567 18446744073709551615 18446744073709551614
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select min(big),max(big),max(big)-1 from t1 group by a;
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min(big) max(big) max(big)-1
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12345678901234567 18446744073709551615 18446744073709551614
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alter table t1 add key (big);
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select min(big),max(big),max(big)-1 from t1;
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min(big) max(big) max(big)-1
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12345678901234567 18446744073709551615 18446744073709551614
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select min(big),max(big),max(big)-1 from t1 group by a;
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min(big) max(big) max(big)-1
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12345678901234567 18446744073709551615 18446744073709551614
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alter table t1 modify big bigint not null;
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select min(big),max(big),max(big)-1 from t1;
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min(big) max(big) max(big)-1
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-1 9223372036854775807 9223372036854775806
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select min(big),max(big),max(big)-1 from t1 group by a;
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min(big) max(big) max(big)-1
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-1 9223372036854775807 9223372036854775806
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drop table t1;
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select CAST(1-2 AS UNSIGNED);
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CAST(1-2 AS UNSIGNED)
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18446744073709551615
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select CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER);
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CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER)
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-1
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select CONVERT('-1',UNSIGNED);
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CONVERT('-1',UNSIGNED)
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18446744073709551615
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select cast(-5 as unsigned) | 1, cast(-5 as unsigned) & -1;
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cast(-5 as unsigned) | 1 cast(-5 as unsigned) & -1
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18446744073709551611 18446744073709551611
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select cast(-5 as unsigned) -1, cast(-5 as unsigned) + 1;
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cast(-5 as unsigned) -1 cast(-5 as unsigned) + 1
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18446744073709551610 18446744073709551612
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select ~5, cast(~5 as signed);
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~5 cast(~5 as signed)
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18446744073709551610 -6
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select cast(5 as unsigned) -6.0;
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cast(5 as unsigned) -6.0
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-1.0
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