| From: | Dmitry Koval <d(dot)koval(at)postgrespro(dot)ru> |
|---|---|
| To: | Juan José Santamaría Flecha <juanjo(dot)santamaria(at)gmail(dot)com> |
| Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: BUG #17288: PSQL bug with COPY command (Windows) |
| Date: | 2021-11-19 12:27:34 |
| Message-ID: | e68b6e05-ee89-26ef-b25d-04bc0ae45396@postgrespro.ru |
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| Lists: | pgsql-bugs |
>GetFinalPathNameByHandleA() is slower when there is redirection, when
>there is no redirection it's similar or faster than
>GetFileInformationByHandle(), and that should be the most common case.
I tested 2 cases:
1) "stdout" is not redirected.
In this case GetFinalPathNameByHandleA() returns error and
GetFileInformationByHandle() returns error.
Simple test in attachment.
---
Result:
GetFileInformationByHandle: 7, GetFinalPathNameByHandleA: 16
2) "stdout" redirected (need to uncomment 2 lines in test).
Both function works without error.
---
Result (see file "1.txt"):
GetFileInformationByHandle: 34, GetFinalPathNameByHandleA: 120
The difference is not very big, but it is.
With best regards,
Dmitry.
| Attachment | Content-Type | Size |
|---|---|---|
| test2.c | text/plain | 676 bytes |
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