Re: UTF8 with BOM support in psql

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Itagaki Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: UTF8 with BOM support in psql
Date: 2009-10-20 15:51:31
Message-ID: 28242.1256053891@sss.pgh.pa.us
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Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> What I think we might sensibly do is to eat the leading BOM of an SQL
> file iff the client encoding is UTF8, and otherwise treat it as just
> bytes in whatever the encoding is.

That seems relatively non-risky.

> Should we also do the same for files passed via \copy? What about
> streams on stdin? What about files read from the backend via COPY?

Not thrilled about doing this on stdin --- you have no good
justification for assuming that start of stdin corresponds to a file
boundary somewhere. COPY files, maybe.

regards, tom lane

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