Hi 2018-05-18 10:37 GMT+02:00 a <372660...@qq.com>:
> Hi: > > I would like to import data from a csv table. But the table that is going > to be inserted is constructed with arrays and composite types, also with > array of composite. > > I have tried many ways of inserting but fail. Can anyone help? Thank you > so much. > create type p as (a int, b int); create table f(pv p[], c int); insert into f values(array[(10,20),(30,40)]::p[], 1000); insert into f values(array[(1,20),(3,40)]::p[], -1000); postgres=# copy f to stdout csv; "{""(10,20)"",""(30,40)""}",1000 "{""(1,20)"",""(3,40)""}",-1000 Time: 0,391 ms So you have to respect this format. CSV doesn't know a arrays, doesn't know composite - so these values are passed as string Regards Pavel