1select 1+1,1-1,1+1*2,8/5,8%5,mod(8,5),mod(8,5)|0,-(1+1)*-2; 21+1 1-1 1+1*2 8/5 8%5 mod(8,5) mod(8,5)|0 -(1+1)*-2 32 0 3 1.6000 3 3 3 4 4explain extended select 1+1,1-1,1+1*2,8/5,8%5,mod(8,5),mod(8,5)|0,-(1+1)*-2; 5id select_type table partitions type possible_keys key key_len ref rows filtered Extra 61 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No tables used 7Warnings: 8Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. 9Note 1003 /* select#1 */ select (1 + 1) AS `1+1`,(1 - 1) AS `1-1`,(1 + (1 * 2)) AS `1+1*2`,(8 / 5) AS `8/5`,(8 % 5) AS `8%5`,(8 % 5) AS `mod(8,5)`,((8 % 5) | 0) AS `mod(8,5)|0`,(-((1 + 1)) * -(2)) AS `-(1+1)*-2` 10select 1 | (1+1),5 & 3,bit_count(7) ; 111 | (1+1) 5 & 3 bit_count(7) 123 1 3 13explain extended select 1 | (1+1),5 & 3,bit_count(7) ; 14id select_type table partitions type possible_keys key key_len ref rows filtered Extra 151 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No tables used 16Warnings: 17Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. 18Note 1003 /* select#1 */ select (1 | (1 + 1)) AS `1 | (1+1)`,(5 & 3) AS `5 & 3`,bit_count(7) AS `bit_count(7)` 19select 1 << 32,1 << 63, 1 << 64, 4 >> 2, 4 >> 63, 1<< 63 >> 60; 201 << 32 1 << 63 1 << 64 4 >> 2 4 >> 63 1<< 63 >> 60 214294967296 9223372036854775808 0 1 0 8 22select -1 | 0, -1 ^ 0, -1 & 0; 23-1 | 0 -1 ^ 0 -1 & 0 2418446744073709551615 18446744073709551615 0 25select -1 | 1, -1 ^ 1, -1 & 1; 26-1 | 1 -1 ^ 1 -1 & 1 2718446744073709551615 18446744073709551614 1 28select 1 | -1, 1 ^ -1, 1 & -1; 291 | -1 1 ^ -1 1 & -1 3018446744073709551615 18446744073709551614 1 31select 0 | -1, 0 ^ -1, 0 & -1; 320 | -1 0 ^ -1 0 & -1 3318446744073709551615 18446744073709551615 0 34select -1 >> 0, -1 << 0; 35-1 >> 0 -1 << 0 3618446744073709551615 18446744073709551615 37select -1 >> 1, -1 << 1; 38-1 >> 1 -1 << 1 399223372036854775807 18446744073709551614 40drop table if exists t1,t2; 41create table t1(a int); 42create table t2(a int, b int); 43insert into t1 values (1), (2), (3); 44insert into t2 values (1, 7), (3, 7); 45select t1.a, t2.a, t2.b, bit_count(t2.b) from t1 left join t2 on t1.a=t2.a; 46a a b bit_count(t2.b) 471 1 7 3 482 NULL NULL NULL 493 3 7 3 50drop table t1, t2; 51