$ sqlite3 db "create table T (t integer not null);"
$ sqlite3 db "create table Tc (t integer not null 
                                check(typeof(t) = 'integer'));" 
$ echo 1 > dat
$ sqlite3 db ".import 'dat' T"
$ sqlite3 db ".import 'dat' Tc"
dat:1: INSERT failed: CHECK constraint failed: Tc
$ sqlite3 db "insert into Tc select * from T;"
$ sqlite3 db "select * from Tc"
1
$ sqlite3 db "select typeof(t) from T"
integer
$ sqlite3 db "select typeof(t) from Tc"
integer

Why does the .import command cause the CHECK constraint to fail, when
an ordinary INSERT does not?  

--jkl
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