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Re: dealing with encoding while converting data from MySQL to Postgres

by grantm (Parson)
on Dec 12, 2011 at 01:14 UTC ( #942994=note: print w/replies, xml ) Need Help??

in reply to dealing with encoding while converting data from MySQL to Postgres

'invalid byte sequence for encoding "UTF8": 0x93 at...'

That message suggests that (at least this row of) your data is not encoded in UTF-8 or Latin-1 but actually CP1252 - Microsoft's embraced and extended Latin-1 which replaces some of the control characters with smart quotes etc.

If your data has a mixture of UTF-8, ASCII, Latin-1 and CP1252 then fixing that is exactly the problem that Encoding::FixLatin was designed to fix.

The Encoding::FixLatin distribution includes a command-line tool called fix_latin which you can pipe your dump file through.

In cases such as yours where you're not able to restore a dump, then you can use the Encoding::FixLatin module in your script that does the inserts and call the fix_latin() function to convert each column value to UTF8.

Note: when you connect to the Postgres database you'll want to set the pg_enable_utf8 flag in the connection attributes so that you get UTF8 characters back from a select.

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