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database/sql: last connection in pool not handed out correctly #7219

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bradfitz opened this issue Jan 27, 2014 · 1 comment
Closed

database/sql: last connection in pool not handed out correctly #7219

bradfitz opened this issue Jan 27, 2014 · 1 comment
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Go1.2.1

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@bradfitz
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From golang-dev:

"Hi,

If you run this code http://play.golang.org/p/CjkzvJYpUi it will block forever on the
second time through the for loop. Change SetMaxIdleConns to 0 and it works.

Problem happens with either MySQL database driver, and with both db.Query()/Next/Close
and db.QueryRow().Scan(). Is it a bug? Could someone help me understand?

Thanks!
"

Reply:

"It's a known bug in Go 1.2, fixed in 1.3 via commit 8a7ac002f840."

Which is:
https://golang.org/cl/40410043

Maybe a candidate for Go 1.2.1?
@rsc
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rsc commented Feb 16, 2014

Comment 1:

Okay for Go 1.2.1.
My reasoning is that people cannot easily make a copy of database/sql because other code
they want to use (the drivers) depends on using database/sql, so you'd have to fork
database/sql, database/sql/driver, and the actual driver, just to get a 1-line fix for a
bug that makes database/sql wedge.

@bradfitz bradfitz self-assigned this Feb 16, 2014
@rsc rsc added this to the Go1.2.1 milestone Apr 14, 2015
@golang golang locked and limited conversation to collaborators Jun 25, 2016
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