Support for dumping extended statistics - Mailing list pgsql-hackers

From Hari krishna Maddileti
Subject Support for dumping extended statistics
Date
Msg-id MN2PR05MB68795FCDB5B560D350084753B6FA9@MN2PR05MB6879.namprd05.prod.outlook.com
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Responses Re: Support for dumping extended statistics
List pgsql-hackers

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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