Using Two Timestamp Columns in One Table MySQL

Using Two Timestamp Columns in One Table

According to http://dev.mysql.com/doc/refman/5.1/en/timestamp-initialization.html

CREATE TABLE t1 (
  ts1 TIMESTAMP DEFAULT 0,
  ts2 TIMESTAMP DEFAULT CURRENT_TIMESTAMP
                ON UPDATE CURRENT_TIMESTAMP);

INSERT INTO t1(ts1) VALUES (NOW());

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