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To: "michael@paquier.xyz" <michael@paquier.xyz>
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Subject: Concerns regarding code in pgstat_backend.c
Thread-Topic: Concerns regarding code in pgstat_backend.c
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Hi, Michael and Hackers,

I found the code that is likely to cause bugs in the future. It's not curre=
ntly a bug.
Should I have misunderstood, please feel free to disregard this email.

pgstat_create_backend(ProcNumber procnum) uses MyProcNumber instead of the =
argument.
I've had a quick look through the commit log and thread, but I don't seem t=
o have found the reason.
Wouldn't it be better to use 'procnum'?

This change seems to have appeared in v2-0002-More-work-to-allow-backend-st=
atistics-in-critical.patch on 2025-01-20 06:34:41
https://www.postgresql.org/message-id/flat/66efowskppsns35v5u2m7k4sdnl7yoz5=
bo64tdjwq7r5lhplrz%40y7dme5xwh2r5#fba8e490848df1798e7c693c70a43f56

Best Regards
Ryo Matsumura

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<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
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s=3D"elementToProof">
Hi, Michael and Hackers,</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
<br>
</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
I found the code that is likely to cause bugs in the future. It's not curre=
ntly a bug.</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
Should I have misunderstood, please feel free to disregard this email.</div=
>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
<br>
</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
pgstat_create_backend(ProcNumber procnum) uses MyProcNumber instead of the =
argument.</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
I've had a quick look through the commit log and thread, but I don't seem t=
o have found the reason.</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
Wouldn't it be better to use 'procnum'?</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
<br>
</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
This change seems to have appeared in v2-0002-More-work-to-allow-backend-st=
atistics-in-critical.patch on 2025-01-20 06:34:41</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
https://www.postgresql.org/message-id/flat/66efowskppsns35v5u2m7k4sdnl7yoz5=
bo64tdjwq7r5lhplrz%40y7dme5xwh2r5#fba8e490848df1798e7c693c70a43f56</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
<br>
</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
Best Regards</div>
<div style=3D"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, =
Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" clas=
s=3D"elementToProof">
Ryo Matsumura</div>
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