Re: Tab completion for CREATE SCHEMAAUTHORIZATION

Michael Paquier <michael@paquier.xyz> writes:

> On Tue, May 02, 2023 at 01:19:49PM +0100, Dagfinn Ilmari Mannsåker wrote:
>> Dagfinn Ilmari Mannsåker <ilmari@ilmari.org> writes:
>>> This is for completing the word CREATE itself after CREATE SCHEMA
>>> [[<name>] AUTHORIZATION] <name>.  The things that can come after that
>>> are already handled generically earlier in the function:
>>>
>>> /* CREATE */
>>>     /* complete with something you can create */
>>>     else if (TailMatches("CREATE"))
>>>         matches = rl_completion_matches(text, create_command_generator);
>>>
>>> create_command_generator uses the words_after_create array, which lists
>>> all the things that can be created.
>
> You are right.  I have completely forgotten that this code path would
> append everything that supports CREATE for a CREATE SCHEMA command :)
>
>> But, looking closer at the docs, only tables, views, indexes, sequences
>> and triggers can be created as part of a CREATE SCHEMA statement. Maybe
>> we should add a HeadMatches("CREATE", "SCHEMA") exception in the above?
>
> Yes, it looks like we are going to need an exception and append only
> the keywords that are supported, or we will end up recommending mostly
> things that are not accepted by the parser.

Here's an updated v3 patch with that.  While adding that, I noticed that
CREATE UNLOGGED only tab-completes TABLE and MATERIALIZED VIEW, not
SEQUENCE, so I added that (and removed MATERIALIZED VIEW when part of
CREATE SCHEMA).

- ilmari