How to set alias data type?

Started by Shaozhong SHIover 4 years ago2 messagesgeneral
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#1Shaozhong SHI
shishaozhong@gmail.com

select 'Total' as Total generate result that set Total as a column name
with unknown type

When trying to cast
select 'Total' as Total:: text

It simply does not work.

Regards,

David

In reply to: Shaozhong SHI (#1)
Re: How to set alias data type?

On Wed, Nov 24, 2021 at 01:57:06PM +0000, Shaozhong SHI wrote:

select 'Total' as Total generate result that set Total as a column name
with unknown type

When trying to cast
select 'Total' as Total:: text

You need to cast value, and not name.

select 'Total'::text as Total;

Best regards,

depesz