Alex - <ainto...@hotmail.com> writes:
> Hi,I need to change a column type from inet to inet[] but the alter command
> always gives me the following errors
> ERROR: column "access_ip" cannot be cast to type inet[]
> ALTER TABLE users ALTER COLUMN access_ip SET DATA TYPE inet[] USING
> access_ip::inet[];
The problem is precisely that the system lacks a cast from inet to inet[].
Telling it to apply a cast it hasn't got doesn't help. What you need to
do is show how to construct the new column values. Try something like
USING ARRAY[access_ip]
regards, tom lane
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