Re: inconsitent tab completion in psql - Mailing list pgsql-bugs

From Bruce Momjian
Subject Re: inconsitent tab completion in psql
Date
Msg-id 200501231601.j0NG1EI00597@candle.pha.pa.us
Whole thread Raw
In response to inconsitent tab completion in psql  (Robert Treat <xzilla@users.sourceforge.net>)
Responses Re: inconsitent tab completion in psql  (Alvaro Herrera <alvherre@dcc.uchile.cl>)
List pgsql-bugs
Robert Treat wrote:
> Disclaimer that this was found under RC1 so it might have been fixed in final
> release, though I don't recall it being reported, anyway, the problem is that
> tab completion does not seem to work for "\h alter operator class".
>
> template1=# \h ALTER
> AGGREGATE   DOMAIN      INDEX       SCHEMA      TABLESPACE  USER
> CONVERSION  FUNCTION    LANGUAGE    SEQUENCE    TRIGGER
> DATABASE    GROUP       OPERATOR    TABLE       TYPE
> template1=# \h ALTER OPERATOR
>
> template1=# \h ALTER OPERATOR CL
>
> template1=# \h ALTER OPERATOR CLASS
> Command:     ALTER OPERATOR CLASS
> Description: change the definition of an operator class
> Syntax:
> ALTER OPERATOR CLASS name USING index_method RENAME TO newname
> ALTER OPERATOR CLASS name USING index_method OWNER TO newowner
>
> template1=#


The reason this happens is because both ALTER OPERATOR and ALTER
OPERATOR CLASS are supported so for the third word you would have to do
tab complete only when the C-L-A-S-S is unique.  I suppose you could say
as soon as they type 'C' it can't match an operator name but it hardly
seems worth the complexity.

> I noticed another other issues too, like CREATE CONSTRAINT TRIGGER doesnt show
> up when you do \h CREATE<tab><tab> and when you do \h CREATE CON<tab><tab>
> you get CREATE CONVERSION instead.

CREATE CONSTRAINT TRIGGER is not supported because it is designed to be
used only by pg_dump and is not for general use.  I added a source file
comment mentioning why we don't support tab completion for it.

--
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  pgman@candle.pha.pa.us               |  (610) 359-1001
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