Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options

Chao Li <li.evan.chao@gmail.com>

From: Chao Li <li.evan.chao@gmail.com>

To: Tatsuo Ishii <ishii@postgresql.org>

Cc: tgl@sss.pgh.pa.us, pgsql-hackers@lists.postgresql.org, pramsey@cleverelephant.ca, ojford@gmail.com, peter@eisentraut.org, krasiyan@gmail.com, vik@postgresfriends.org, andrew@tao11.riddles.org.uk, david@fetter.org

Date: 2025-10-20T03:22:04Z

Lists: pgsql-hackers

Commits

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Fix coding style with "else".
- 20628b62e46e 19 (unreleased) landed
Fix multi WinGetFuncArgInFrame/Partition calls with IGNORE NULLS.
- 2d7b247cb414 19 (unreleased) landed
Fix Coverity issue reported in commit 2273fa32bce.
- dd766a441d69 19 (unreleased) landed
Use ereport rather than elog in WinCheckAndInitializeNullTreatment.
- 5f3808646f67 19 (unreleased) landed
Avoid uninitialized-variable warnings from older compilers.
- 71540dcdcb22 19 (unreleased) cited
Fix Coverity issues reported in commit 25a30bbd423.
- 2273fa32bce7 19 (unreleased) landed
Improve EXPLAIN's display of window functions.
- 8b1b342544b6 18.0 cited
Automatically generate node support functions
- 964d01ae90c3 16.0 cited


> On Oct 19, 2025, at 17:53, Tatsuo Ishii <ishii@postgresql.org> wrote:
> 
> 
> If there's no objection, I am going to commit in a few days.
> --
> Tatsuo Ishii
> SRA OSS K.K.
> English: http://www.sraoss.co.jp/index_en/
> Japanese:http://www.sraoss.co.jp
> <v3-0001-Fix-multi-WinGetFuncArgInFrame-Partition-calls-wi.patch>

A very trivial commit:

```
+	else
+
+		/*
+		 * For other cases we have no idea what position of row callers would
+		 * fetch next time. Also for relpos < 0 case (we go backward), we
+		 * cannot set mark either. For those cases we always set mark at 0.
+		 */
+		mark_pos = 0;
```

The empty line after “else” is not needed.

Best regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/