bug#54591: 29.0.50; sqlite-select returns blob result as multibyte string

[Yuan Fu]

I’m trying make use of sqlite functionalities added recently and found
that the query result of blob type entries are multibyte string rather
than unibyte. That caused issues when I tried to create image out of the
query result: the image appears to be broken, even though the data is
good. Adding string-as-unibyte solves the issue, but I guess the
return value of a blob entry is probably best to be unibyte by default?

Yuan


In GNU Emacs 29.0.50 (build 7, x86_64-apple-darwin21.3.0, NS appkit-2113.30 
Version 12.2.1 (Build 21D62))
of 2022-03-12 built on Brown
Repository revision: 22dde4e621fb49b9f05d560aee22332ad60bf485
Repository branch: master
Windowing system distributor 'Apple', version 10.3.2113
System Description:  macOS 12.3

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