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help / color / mirror / Atom feedFrom: Hari krishna Maddileti <[email protected]>
To: PostgreSQL Hackers <[email protected]>
To: [email protected] <[email protected]>
Subject: Support for dumping extended statistics
Date: Thu, 5 Jan 2023 18:29:03 +0000
Message-ID: <MN2PR05MB68795FCDB5B560D350084753B6FA9@MN2PR05MB6879.namprd05.prod.outlook.com> (raw)
Hi Team,
In order to restore dumped extended statistics (stxdndistinct, stxddependencies, stxdmcv) we need to provide input functions to parse pg_distinct/pg_dependency/pg_mcv_list strings.
Today we get the ERROR "cannot accept a value of type pg_ndistinct/pg_dependencies/pg_mcv_list" when we try to do an insert of any type.
Approch tried:
- Using yacc grammar file (statistics_gram.y) to parse the input string to its internal format for the types pg_distinct and pg_dependencies
- We are just calling byteain() for serialized input text of type pg_mcv_list.
Currently the changes are working locally, I would like to push the commit changes to upstream if there any usecase for postgres. Would like to know if there any interest from postgres side.
Regards,
Hari Krishna
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