Re: convert custom datatype to array

Thanks!  That did the trick.  For posterity, I was able to do the final
conversion using:

alter table mytable alter column mycolumn type float4[] using
string_to_array(trim(both '[]' from
textin(nbf4a_out(mycolumn))),',')::float4[];


Mike

Alvaro Herrera wrote:
> Mike Charnoky wrote:
>> OK, forgive my ignorance here, but the maintainer of our custom data
>> type code is no longer with us and this is new territory for me.  We do
>> have a function which takes our custom data type and returns a cstring.
>>  Is there a pg function which converts a cstring to text type?  This
>> seems to be the missing link to eventually get the data to float4[].
>
> Sure, textin() does that.
>