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Re: Index AM API cleanup

Peter Eisentraut <peter@eisentraut.org>

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From: Peter Eisentraut <peter@eisentraut.org>
To: Mark Dilger <mark.dilger@enterprisedb.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Kirill Reshke <reshkekirill@gmail.com>, Andrew Dunstan <andrew@dunslane.net>, Alex Wang <alex.wang@enterprisedb.com>, Paul A Jungwirth <pj@illuminatedcomputing.com>
Date: 2024-12-04T14:49:20Z
Lists: pgsql-hackers

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On 27.11.24 13:57, Peter Eisentraut wrote:
> I think, however, that we should rename RowCompareType.  Otherwise, it's 
> just going to be confusing forevermore.  I suggest to rename it simply 
> to CompareType.

> I'm going to try to code up the gist support on top of this patch set to 
> make sure that it will fit well.  I'll report back.

Here is a patch set in that direction.  It renames RowCompareType to 
CompareType and updates the surrounding commentary a bit.  And then I'm 
changing the gist strategy mapping to use the CompareType values instead 
of the RT* strategy numbers.  Seeing this now, I like this a lot better 
than what we have now, because it makes it clearer in the API and the 
code what is a real strategy number and what's a different kind of 
thing.  (This isn't entirely the above-mentioned integration of the gist 
support into your patch set yet, but it's a meaningful part of it.)

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Relax ordering-related hardcoded btree requirements in planning

  2. Support non-btree indexes in get_actual_variable_range()

  3. Convert PathKey to use CompareType

  4. Generalize index support in network support function

  5. Update a code comment

  6. Allow non-btree unique indexes for matviews

  7. Allow non-btree unique indexes for partition keys

  8. Add some opfamily support functions to lsyscache.c

  9. Simplify and generalize PrepareSortSupportFromIndexRel()

  10. Generalize hash and ordering support in amapi

  11. Drop opcintype from index AM strategy translation API

  12. Allow non-btree speculative insertion indexes

  13. Support non-btree indexes for foreign keys

  14. Integrate GistTranslateCompareType() into IndexAmTranslateCompareType()

  15. Convert strategies to and from compare types

  16. Move CompareType to separate header file

  17. Add get_opfamily_name() function

  18. Rename GistTranslateStratnum() to GistTranslateCompareType()

  19. Change gist stratnum function to use CompareType

  20. Rename RowCompareType to CompareType

  21. Improve slightly misleading internal error message

  22. Track scan reversals in MergeJoin

  23. Track sort direction in SortGroupClause

  24. Add stratnum GiST support function

  25. Add amgettreeheight index AM API routine