On 23.12.2011 19:21, Robert Haas wrote:
On Thu, Dec 15, 2011 at 3:40 PM, Holec, JPH Software<ho...@jphsw.cz>  wrote:
I Have PostgreSQL server 8.4.9 on Linux, database utf-8 and Client app on
Windows (VC++ and libpq.dll).
I need to use user account with non-ASCII and PQconnectdb() with
options="client_encoding=WIN1250" doesn't work.

I think you need a "-c" in there somewhere, maybe something like this:

options='-cclient_encoding=WIN1250'

...although, for some reason, I can't get that to work from psql, even
though I can set other parameters using that syntax.

That's because of the changes in 9.1 to determine client_encoding automatically from the system locale (commit 02e14562). Unless PGCLIENTENCODING environment variable is set, psql adds client_encoding='auto' to the params it passes to PQconnectdbParams. That overrides any setting you manually pass in the backend command-line options.

That doesn't seem desirable, actually. That could be changed easily, by passing the client_encoding='auto' setting *before* dbname in the PQconnectdbParams call. The options given by the user are parsed from dbname setting, so if we passed them in different order, the manually given options would override the client_encoding='auto' setting, not the other way round. That seems like better behavior. Patch attached. It might be better to not backpatch this, though, to avoid surprising and subtle changes in behavior in application.

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com
diff --git a/src/bin/psql/command.c b/src/bin/psql/command.c
index e5cf5ff..1e6e207 100644
--- a/src/bin/psql/command.c
+++ b/src/bin/psql/command.c
@@ -1561,12 +1561,12 @@ do_connect(char *dbname, char *user, char *host, char *port)
 		values[2] = user;
 		keywords[3] = "password";
 		values[3] = password;
-		keywords[4] = "dbname";
-		values[4] = dbname;
-		keywords[5] = "fallback_application_name";
-		values[5] = pset.progname;
-		keywords[6] = "client_encoding";
-		values[6] = (pset.notty || getenv("PGCLIENTENCODING")) ? NULL : "auto";
+		keywords[4] = "client_encoding";
+		values[4] = (pset.notty || getenv("PGCLIENTENCODING")) ? NULL : "auto";
+		keywords[5] = "dbname";
+		values[5] = dbname;
+		keywords[6] = "fallback_application_name";
+		values[6] = pset.progname;
 		keywords[7] = NULL;
 		values[7] = NULL;
 
diff --git a/src/bin/psql/startup.c b/src/bin/psql/startup.c
index 71829eb..b142080 100644
--- a/src/bin/psql/startup.c
+++ b/src/bin/psql/startup.c
@@ -183,14 +183,14 @@ main(int argc, char *argv[])
 		values[2] = options.username;
 		keywords[3] = "password";
 		values[3] = password;
-		keywords[4] = "dbname";
-		values[4] = (options.action == ACT_LIST_DB &&
+		keywords[4] = "client_encoding";
+		values[4] = (pset.notty || getenv("PGCLIENTENCODING")) ? NULL : "auto";
+		keywords[5] = "dbname";
+		values[5] = (options.action == ACT_LIST_DB &&
 					 options.dbname == NULL) ?
 			"postgres" : options.dbname;
-		keywords[5] = "fallback_application_name";
-		values[5] = pset.progname;
-		keywords[6] = "client_encoding";
-		values[6] = (pset.notty || getenv("PGCLIENTENCODING")) ? NULL : "auto";
+		keywords[6] = "fallback_application_name";
+		values[6] = pset.progname;
 		keywords[7] = NULL;
 		values[7] = NULL;
 
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