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drop table if exists t1;
create table t1 (time time, date date, timestamp timestamp);
insert into t1 values ("12:22:22","97:02:03","1997-01-02");
select * from t1;
time date timestamp
12:22:22 1997-02-03 19970102000000
select t1.time+0,t1.date+0,t1.timestamp+0,concat(date," ",time) from t1;
t1.time+0 t1.date+0 t1.timestamp+0 concat(date," ",time)
122222 19970203 19970102000000 1997-02-03 12:22:22
drop table t1;
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