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https://www.postgresql.org/docs/9.1/multibyte.html
Not all client APIs support all the listed character sets.For example, the PostgreSQL JDBC driver does not support MULE_INTERNAL, LATIN6, LATIN8, and LATIN10. The SQL_ASCII setting behaves considerably differently from the other settings. When the server character set is SQL_ASCII, the server interprets byte values 0-127 according to the ASCII standard, while byte values 128-255 are taken as ...
https://dba.stackexchange.com/questions/7323/unicode-support-of-postgresql-and-its-performance
Unicode encoding support in PostgreSQL is stellar and is implemented using the UTF-8 character encoding. If the client uses a different encoding than the server, automatic character set conversion occurs, paying a negligible performance penalty. ASCII data does not require conversion to the UTF-8 character encoding, so no performance penalty there.
https://www.postgresql.org/message-id/CAGuREpPHJmoHe_5%2BP25UCosRvqQpbhPF_0LGFbJ%[email protected]
Re: How well does PostgreSQL 9.6.1 support unicode? at 2016-12-21 01:06:20 from John R Pierce Re: How well does PostgreSQL 9.6.1 support unicode? at 2016-12-21 05:24:17 from Tom Lane Re: How well does PostgreSQL 9.6.1 support unicode? at 2016-12-21 07:56:37 from Kyotaro HORIGUCHI Browse pgsql-general by date
https://stackoverflow.com/questions/24014147/how-to-convert-string-to-unicode-using-postgresql
How to convert string to unicode using PostgreSQL? ... so long as your client does I/O with correct charset options and sets a correct client_encoding that matches the data its actually sends on the wire. (This is automatic with most client drivers like PgJDBC, nPgSQL, or the Unicode psqlODBC driver). See: character set support; share improve ...
https://odbc.postgresql.org/faq.html
You are probably using the PostgreSQL Unicode driver with non-Unicode, 8 bit data - for example, from one of the LATIN encodings. You should either use the PostgreSQL ANSI driver, or move your data to a Unicode database. 4.2) What data types does the driver support? The driver provides full support for all PostgreSQL standard data types.
https://stackoverflow.com/questions/4249745/does-postgresql-varchar-count-using-unicode-character-length-or-ascii-character
It depends what value you used when you created the database. createdb -E UNICODE creates a Unicode DB that should also accept multibyte characters and count them as one character.. You can use . psql -l to see which encoding was used. This page has a table including information about how many bytes per character are used.
https://dba.stackexchange.com/q/192178
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https://grokbase.com/t/postgresql/pgsql-general/02c3hk490e/support-unicode-in-libpq
Dec 03, 2002 · (1 reply) Hello: I would like to know how libpq library support with the unicode query? As I find that it accepts char string only e.g. PGresult *PQexec(PGconn *conn, const char *query) How can I handle if the query contain the unicode which is of wchar type? Carmen _____ Add photos to your messages with MSN 8.
https://www.2ndquadrant.com/en/blog/icu-support-postgresql-10/
May 22, 2017 · In this article, I want to introduce the ICU support in PostgreSQL, which I have worked on for PostgreSQL version 10, to appear later this year. Sorting Sorting is an important functionality of a database system. First, users generally want to see data sorted. Any query result that contains more than one row and is […]
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