Re: [HACKERS] Pretty bad bug in Postgres.

Any comments on this?

>
> Following is I believe evidence of a pretty bad bug in postgres. This is
> the 990329 snapshot.
>
> When doing an insert into a table where one of the fields comes from a
> SELECT from another table, it seems that if the table has the "*" after
> it, to indicate sub-classes it doesn't work.
>
> The database is fresh and there are no indexes.
>
> The table looks like this....
>
> CREATE TABLE category (
> name text,
> image text,
> url text,
> parent oid
> );
>
>
> httpd=> select * from category;
> name |image|url|parent
> --------+-----+---+------
> foo |foo | | 0
> bar |bar | |158321
> Products|.gif | |
> (3 rows)
>
> httpd=> select oid, * FROM category* where name = 'foo';
> oid|name|image|url|parent
> ------+----+-----+---+------
> 158321|foo |foo | | 0
> (1 row)
>
> httpd=> insert into category(name, image, parent) SELECT 'boo', 'boo',
> oid FROM category* where name = 'foo';
> INSERT 158370 1
> httpd=> select * from category;
> name |image|url|parent
> --------+-----+---+------
> foo |foo | | 0
> bar |bar | |158321
> Products|.gif | |
> (3 rows)
>
> Ok, what's going on here. The 'boo' record did not appear!
>
> httpd=> insert into category(name, image, parent) SELECT 'boo', 'boo',
> oid FROM category where name = 'foo';
> INSERT 158374 1
> httpd=> select * from category;
> name |image|url|parent
> --------+-----+---+------
> foo |foo | | 0
> bar |bar | |158321
> Products|.gif | |
> boo |boo | |158321
> (4 rows)
>
> We dropped the "*" from the FROM clause and now the record does appear.
>
> A bug?
>
>
> --
> Chris Bitmead
> http://www.bigfoot.com/~chris.bitmead
> mailto:chris(dot)bitmead(at)bigfoot(dot)com
>
>

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