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DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <INT_COLUMN> GENERATED ALWAYS AS (a+1)) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
SHOW COLUMNS IN t1;
Field Type Null Key Default Extra
a int(11) # #
b int(11) # # VIRTUAL
INSERT INTO t1 (a) VALUES (1),(2);
INSERT INTO t1 (a,b) VALUES (3,3),(4,4);
Warnings:
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
SELECT a,b FROM t1;
a b
1 2
2 3
3 4
4 5
DROP TABLE t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <INT_COLUMN> GENERATED ALWAYS AS (a+1) PERSISTENT) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
SHOW COLUMNS IN t1;
Field Type Null Key Default Extra
a int(11) # #
b int(11) # # PERSISTENT
INSERT INTO t1 (a) VALUES (1),(2);
INSERT INTO t1 (a,b) VALUES (3,3),(4,4);
Warnings:
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
SELECT a,b FROM t1;
a b
1 2
2 3
3 4
4 5
DROP TABLE t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <INT_COLUMN> GENERATED ALWAYS AS (a+1) VIRTUAL) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
SHOW COLUMNS IN t1;
Field Type Null Key Default Extra
a int(11) # #
b int(11) # # VIRTUAL
INSERT INTO t1 (a) VALUES (1),(2);
INSERT INTO t1 (a,b) VALUES (3,3),(4,4);
Warnings:
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
SELECT a,b FROM t1;
a b
1 2
2 3
3 4
4 5
DROP TABLE t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <INT_COLUMN> AS (a+1) PERSISTENT) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
SHOW COLUMNS IN t1;
Field Type Null Key Default Extra
a int(11) # #
b int(11) # # PERSISTENT
INSERT INTO t1 (a) VALUES (1),(2);
INSERT INTO t1 (a,b) VALUES (3,3),(4,4);
Warnings:
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
Warning 1906 The value specified for computed column 'b' in table 't1' ignored
SELECT a,b FROM t1;
a b
1 2
2 3
3 4
4 5
DROP TABLE t1;
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