Re: Get index information from information_schema?

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От Erik Jones
Тема Re: Get index information from information_schema?
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Msg-id 296314DD-C468-4DCE-BEC9-36D4FCED7EF2@myemma.com
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Ответ на Re: Get index information from information_schema?  ("Dann Corbit" <DCorbit@connx.com>)
Ответы Re: Get index information from information_schema?
Список pgsql-general
On Mar 18, 2008, at 1:28 PM, Dann Corbit wrote:

>> -----Original Message-----
>> From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-
>> owner@postgresql.org] On Behalf Of Albe Laurenz
>> Sent: Tuesday, March 18, 2008 1:24 AM
>> To: AlannY *EXTERN*; pgsql-general@postgresql.org
>> Subject: Re: [GENERAL] Get index information from information_schema?
>>
>> AlannY wrote:
>>> I need a method of extracting information about indexes of any table
>>> from information_schema.
>>>
>>> Have you any suggestions?
>>
>> I am afraid that indexes are not covered by information_schema.
>>
>> You'd have to dig into pg_catalog.pg_index for this.
>
> Doesn't the PostgreSQL schema have the
> INFORMATION_SCHEMA.KEY_COLUMN_USAGE view?
>
> Or (conversely) are indexes not stored as constraints?

Only if they are PRIMARY KEY or UNIQUE indexes.

Erik Jones

DBA | Emma®
erik@myemma.com
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