1 files changed, 73 insertions, 0 deletions
diff --git a/src/backend/utils/mb/variable.c b/src/backend/utils/mb/variable.c
new file mode 100644
index 00000000000..12cc23d3f30
--- /dev/null
+++ b/src/backend/utils/mb/variable.c
@@ -0,0 +1,73 @@
+/*
+ * This file contains some public functions
+ * related to show/set/reset variable commands.
+ * Tatsuo Ishii
+ * $Id: variable.c,v 1.1 1998/07/24 03:31:57 scrappy Exp $
+ */
+
+#include "mb/pg_wchar.h"
+
+bool
+parse_client_encoding(const char *value)
+{
+  int encoding;
+
+  encoding = pg_valid_client_encoding(value);
+  if (encoding < 0) {
+    elog(ERROR, "Client encoding %s is not supported", value);
+  } else {    
+    if (pg_set_client_encoding(encoding)) {
+      elog(ERROR, "Conversion between %s and %s is not supported",
+	   value, pg_encoding_to_char(GetDatabaseEncoding()));
+    }
+  }
+  return TRUE;
+}
+
+bool
+show_client_encoding()
+{
+  elog(NOTICE, "Current client encoding is %s",
+       pg_encoding_to_char(pg_get_client_encoding()));
+  return TRUE;
+}
+
+bool
+reset_client_encoding()
+{
+  int encoding;
+  char *env = getenv("PGCLIENTENCODING");
+
+  if (env) {
+    encoding = pg_char_to_encoding(env);
+    if (encoding < 0) {
+      encoding = GetDatabaseEncoding();
+    }
+  } else {
+    encoding = GetDatabaseEncoding();
+  }
+  pg_set_client_encoding(encoding);
+  return TRUE;
+}
+
+bool
+parse_server_encoding(const char *value)
+{
+  elog(NOTICE, "SET SERVER_ENCODING is not supported");
+  return TRUE;
+}
+
+bool
+show_server_encoding()
+{
+  elog(NOTICE, "Current server encoding is %s",
+       pg_encoding_to_char(GetDatabaseEncoding()));
+  return TRUE;
+}
+
+bool
+reset_server_encoding()
+{
+  elog(NOTICE, "RESET SERVER_ENCODING is not supported");
+  return TRUE;
+}