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| 1 | +DESC sys.schema_auto_increment_columns; |
| 2 | +Field Type Null Key Default Extra |
| 3 | +table_schema varchar(64) NO |
| 4 | +table_name varchar(64) NO |
| 5 | +column_name varchar(64) NO |
| 6 | +data_type longtext NO NULL |
| 7 | +column_type mediumtext NO NULL |
| 8 | +is_signed int(1) NO 0 |
| 9 | +is_unsigned int(1) NO 0 |
| 10 | +max_value bigint(21) unsigned YES NULL |
| 11 | +auto_increment bigint(20) unsigned YES NULL |
| 12 | +auto_increment_ratio decimal(24,4) unsigned YES NULL |
| 13 | +SELECT * FROM sys.schema_auto_increment_columns; |
| 14 | +CREATE DATABASE auto_incs; |
| 15 | +CREATE TABLE auto_incs.tinyintcol ( |
| 16 | +id TINYINT AUTO_INCREMENT PRIMARY KEY, |
| 17 | +foo INT |
| 18 | +); |
| 19 | +INSERT INTO auto_incs.tinyintcol (foo) VALUES (100); |
| 20 | +INSERT INTO auto_incs.tinyintcol (foo) (SELECT foo FROM auto_incs.tinyintcol); |
| 21 | +INSERT INTO auto_incs.tinyintcol (foo) (SELECT foo FROM auto_incs.tinyintcol); |
| 22 | +INSERT INTO auto_incs.tinyintcol (foo) (SELECT foo FROM auto_incs.tinyintcol); |
| 23 | +INSERT INTO auto_incs.tinyintcol (foo) (SELECT foo FROM auto_incs.tinyintcol); |
| 24 | +CREATE TABLE auto_incs.tinyintcolunsigned ( |
| 25 | +id TINYINT UNSIGNED AUTO_INCREMENT PRIMARY KEY, |
| 26 | +foo INT |
| 27 | +); |
| 28 | +INSERT INTO auto_incs.tinyintcolunsigned (foo) (SELECT foo FROM auto_incs.tinyintcol); |
| 29 | +CREATE TABLE auto_incs.smallintcol ( |
| 30 | +id SMALLINT AUTO_INCREMENT PRIMARY KEY, |
| 31 | +foo INT |
| 32 | +); |
| 33 | +INSERT INTO auto_incs.smallintcol (foo) VALUES (200); |
| 34 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 35 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 36 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 37 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 38 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 39 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 40 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 41 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 42 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 43 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 44 | +INSERT INTO auto_incs.smallintcol (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 45 | +CREATE TABLE auto_incs.smallintcolunsigned ( |
| 46 | +id SMALLINT UNSIGNED AUTO_INCREMENT PRIMARY KEY, |
| 47 | +foo INT |
| 48 | +); |
| 49 | +INSERT INTO auto_incs.smallintcolunsigned (foo) (SELECT foo FROM auto_incs.smallintcol); |
| 50 | +CREATE TABLE auto_incs.mediumintcol ( |
| 51 | +id MEDIUMINT AUTO_INCREMENT PRIMARY KEY, |
| 52 | +foo INT |
| 53 | +); |
| 54 | +INSERT INTO auto_incs.mediumintcol (foo) VALUES (300); |
| 55 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 56 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 57 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 58 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 59 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 60 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 61 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 62 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 63 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 64 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 65 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 66 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 67 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 68 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 69 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 70 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 71 | +INSERT INTO auto_incs.mediumintcol (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 72 | +CREATE TABLE auto_incs.mediumintcolunsigned ( |
| 73 | +id MEDIUMINT UNSIGNED AUTO_INCREMENT PRIMARY KEY, |
| 74 | +foo INT |
| 75 | +); |
| 76 | +INSERT INTO auto_incs.mediumintcolunsigned (foo) (SELECT foo FROM auto_incs.mediumintcol); |
| 77 | +CREATE TABLE auto_incs.intcol ( |
| 78 | +id INT AUTO_INCREMENT PRIMARY KEY, |
| 79 | +foo INT |
| 80 | +); |
| 81 | +INSERT INTO auto_incs.intcol (foo) VALUES (400); |
| 82 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 83 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 84 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 85 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 86 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 87 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 88 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 89 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 90 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 91 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 92 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 93 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 94 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 95 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 96 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 97 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 98 | +INSERT INTO auto_incs.intcol (foo) (SELECT foo FROM auto_incs.intcol); |
| 99 | +CREATE TABLE auto_incs.intcolunsigned ( |
| 100 | +id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY, |
| 101 | +foo INT |
| 102 | +); |
| 103 | +INSERT INTO auto_incs.intcolunsigned (foo) (SELECT foo FROM auto_incs.intcol); |
| 104 | +CREATE TABLE auto_incs.bigintcol ( |
| 105 | +id BIGINT AUTO_INCREMENT PRIMARY KEY, |
| 106 | +foo INT |
| 107 | +); |
| 108 | +INSERT INTO auto_incs.bigintcol (foo) VALUES (500); |
| 109 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 110 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 111 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 112 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 113 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 114 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 115 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 116 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 117 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 118 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 119 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 120 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 121 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 122 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 123 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 124 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 125 | +INSERT INTO auto_incs.bigintcol (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 126 | +CREATE TABLE auto_incs.bigintcolunsigned ( |
| 127 | +id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY, |
| 128 | +foo INT |
| 129 | +); |
| 130 | +INSERT INTO auto_incs.bigintcolunsigned (foo) (SELECT foo FROM auto_incs.bigintcol); |
| 131 | +analyze table auto_incs.tinyintcol; |
| 132 | +Table Op Msg_type Msg_text |
| 133 | +auto_incs.tinyintcol analyze status OK |
| 134 | +analyze table auto_incs.tinyintcolunsigned; |
| 135 | +Table Op Msg_type Msg_text |
| 136 | +auto_incs.tinyintcolunsigned analyze status OK |
| 137 | +analyze table auto_incs.smallintcol; |
| 138 | +Table Op Msg_type Msg_text |
| 139 | +auto_incs.smallintcol analyze status OK |
| 140 | +analyze table auto_incs.smallintcolunsigned; |
| 141 | +Table Op Msg_type Msg_text |
| 142 | +auto_incs.smallintcolunsigned analyze status OK |
| 143 | +analyze table auto_incs.mediumintcol; |
| 144 | +Table Op Msg_type Msg_text |
| 145 | +auto_incs.mediumintcol analyze status OK |
| 146 | +analyze table auto_incs.mediumintcolunsigned; |
| 147 | +Table Op Msg_type Msg_text |
| 148 | +auto_incs.mediumintcolunsigned analyze status OK |
| 149 | +analyze table auto_incs.intcol; |
| 150 | +Table Op Msg_type Msg_text |
| 151 | +auto_incs.intcol analyze status OK |
| 152 | +analyze table auto_incs.intcolunsigned; |
| 153 | +Table Op Msg_type Msg_text |
| 154 | +auto_incs.intcolunsigned analyze status OK |
| 155 | +analyze table auto_incs.bigintcol; |
| 156 | +Table Op Msg_type Msg_text |
| 157 | +auto_incs.bigintcol analyze status OK |
| 158 | +analyze table auto_incs.bigintcolunsigned; |
| 159 | +Table Op Msg_type Msg_text |
| 160 | +auto_incs.bigintcolunsigned analyze status OK |
| 161 | +SELECT * FROM sys.schema_auto_increment_columns; |
| 162 | +table_schema table_name column_name data_type column_type is_signed is_unsigned max_value auto_increment auto_increment_ratio |
| 163 | +auto_incs tinyintcol id tinyint tinyint(4) 1 0 127 28 0.2205 |
| 164 | +auto_incs tinyintcolunsigned id tinyint tinyint(3) unsigned 0 1 255 32 0.1255 |
| 165 | +auto_incs smallintcol id smallint smallint(6) 1 0 32767 4085 0.1247 |
| 166 | +auto_incs smallintcolunsigned id smallint smallint(5) unsigned 0 1 65535 4096 0.0625 |
| 167 | +auto_incs mediumintcol id mediumint mediumint(9) 1 0 8388607 262126 0.0312 |
| 168 | +auto_incs mediumintcolunsigned id mediumint mediumint(8) unsigned 0 1 16777215 196606 0.0117 |
| 169 | +auto_incs intcol id int int(11) 1 0 2147483647 262126 0.0001 |
| 170 | +auto_incs intcolunsigned id int int(10) unsigned 0 1 4294967295 196606 0.0000 |
| 171 | +auto_incs bigintcol id bigint bigint(20) 1 0 9223372036854775807 262126 0.0000 |
| 172 | +auto_incs bigintcolunsigned id bigint bigint(20) unsigned 0 1 18446744073709551615 196606 0.0000 |
| 173 | +DROP DATABASE auto_incs; |
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