Re: How to add a new pg oid?

2023年9月6日 18:50，jacktby jacktby <jacktby@gmail.com> 写道：

2023年9月6日 18:19，jacktby jacktby <jacktby@gmail.com> 写道：

2023年9月6日 01:47，David G. Johnston <david.g.johnston@gmail.com> 写道：

OIDs don't exist independently of the data they are associated with.  Give more context if you want a better answer.  Or just go look at the source code commits for when the last time something needing an OID got added to the core catalog.

David J.

 

{ oid => '111', array_type_oid => '6099', descr => 'similarity columns',

  typname => 'similarity_columns', typlen => '-1', typlen => '-1', typbyval => 'f', typcategory => 'U',

  typinput => 'byteain', typoutput => 'byteaout', typreceive => 'bytearecv',

  typsend => 'byteasend', typalign => 'i', typstorage => 'x' },

I add above into pg_type.dat. And then I add execute “make install” and restart pg. And Then do below:

postgres=# SELECT typname from pg_type where typname like '%similarity%';

 typname 

---------

(0 rows)

I can’t get the type I added. What else I need to do?

I add below in bootstrap.c:

static const struct typinfo TypInfo[] = {

{"similarity_columns", SimilarityColumns, 0, -1, false, TYPALIGN_INT, TYPSTORAGE_EXTENDED, InvalidOid,

F_BYTEAIN, F_BYTEAOUT},

….

}

And then “make install” and restart pg.but still:

postgres=# SELECT typname from pg_type where typname like '%similarity%';

 typname 

---------

(0 rows)

Please give me help.