Ok, it appears that relations and types automatically get a copy made of
some object with the same name, prefixed with a leading underscore. Now,
that was a dangerous choice! By convention, we all know that the safest
characters to use across DB platforms are lowercase chars and underscores.
In the past, I had been able to prefix tables, indexes, etc with
underscores. It is a tactic we use when I am "soft deleting" objects, or
installing new versions over old. The number of underscrores indicates how
many versions old it is. This convention (rather than the classic
"my_table_old") makes the tables float to the top of schema listings,
attracting attention during Db maintenance.
This was really common with us with PG for years, and now it errors out -
what happened, and when?
Carlo
"Alvaro Herrera" <alvherre@xxxxxxxxxxxxxxxxx> wrote in message
news:20091104205734.GJ3531@xxxxxxxxxxxxxxxxx
Carlo Stonebanks wrote:
When I try the following command:
ALTER TABLE mdx_core.audit_impt RENAME TO _audit_impt;
I get the error message:
ERROR: type "_audit_impt" already exists
SQL state: 42710
Probably the easiest way around this is to use two underscores instead
of one:
ALTER TABLE mdx_core.audit_impt RENAME TO __audit_impt;
Or any other char for that matter -- you picked the only one that would
cause a problem. Even a space should be fine:
ALTER TABLE mdx_core.audit_impt RENAME TO " audit_impt";
(Not sure I can recommend this though)
--
Alvaro Herrera
http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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