Обсуждение: DROP INDEX - dropping index of a table in a named schema

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DROP INDEX - dropping index of a table in a named schema

От
PG Doc comments form
Дата:
The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/15/sql-dropindex.html
Description:

I had to find out (as it is not in the given documentation) that to drop an
index for a table in a named schema (later "schemaname.tablename") you have
to prefix the schemaname for the index inte DROP statement.

Consider
CREATE INDEX indexname ON schemaname.tablename (<some columns>)

To drop it you will have to perform
DROP INDEX schemaname.indexname
(as I have read that indices are tied to schemas) 

The following statement will fail (which was not clear from documentation)
DROP INDEX indexname

Re: DROP INDEX - dropping index of a table in a named schema

От
"David G. Johnston"
Дата:
On Monday, May 22, 2023, PG Doc comments form <noreply@postgresql.org> wrote:
The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/15/sql-dropindex.html
Description:

I had to find out (as it is not in the given documentation) that to drop an
index for a table in a named schema (later "schemaname.tablename") you have
to prefix the schemaname for the index inte DROP statement.

The create index docs say that an index for a table always exists within the same schema as that table.  If that schema isn’t in your search_path then it follows you need to schema qualify references to it.

David J.