Re: CREATE SCHEMA IF NOT EXISTS

Dickson S. Guedes schrieb:
> - https://commitfest.postgresql.org/action/patch_view?id=907
> 
> The patch is small and implements a new syntax to CREATE SCHEMA
> that allow the creation of a schema be skipped when IF NOT EXISTS is
> used.
>
> [...]
>
> - Should this patch implements others INEs like ADD COLUMN IF NOT EXISTS?

If there's still a chance to improve the patch, I'd love to see
the following INEs implemented. Several real-world database
upgrade scripts would benefit from those:

1)
CREATE [ TEMPORARY | TEMP ] SEQUENCE [ IF NOT EXISTS ] name ...

2)
ALTER TABLE ... ADD [ COLUMN ] [ IF NOT EXISTS ] column_name ...

3)
CREATE [ UNIQUE ] INDEX [ CONCURRENTLY ] [ IF NOT EXISTS ] [ name ] ON ...


Regards,
Volker

-- 
Volker Grabsch
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