diff --git a/src/backend/utils/mb/conv.c b/src/backend/utils/mb/conv.c
index ea9b78f252e5ea5de5c1b39d7d9b988ada5029c0..f2730aaea51e5f6deed647f1bb4a987862a7612c 100644
--- a/src/backend/utils/mb/conv.c
+++ b/src/backend/utils/mb/conv.c
@@ -2,15 +2,21 @@
  * conversion between client encoding and server internal encoding
  * (currently mule internal code (mic) is used)
  * Tatsuo Ishii
- * $Id: conv.c,v 1.11 1999/05/26 15:19:55 momjian Exp $
+ * WIN1250 client encoding support contributed by Pavel Behal
+ *
+ * $Id: conv.c,v 1.12 1999/07/11 22:47:20 ishii Exp $
+ *
+ *
  */
+
 #include <stdio.h>
 #include <string.h>
 
 #include "mb/pg_wchar.h"
 
 /*
- * convert bogus chars that cannot be represented in the current encoding
+ * convert bogus chars that cannot be represented in the current
+encoding
  * system.
  */
 static void
@@ -557,7 +563,6 @@ mic2latin4(unsigned char *mic, unsigned char *p, int len)
 {
 	mic2latin(mic, p, len, LC_ISO8859_4);
 }
-
 #ifdef NOT_USED
 static void
 latin52mic(unsigned char *l, unsigned char *p, int len)
@@ -724,7 +729,7 @@ mic2latin_with_table(
 static void
 iso2mic(unsigned char *l, unsigned char *p, int len)
 {
-	static char iso2koi[] = {
+	static unsigned char iso2koi[] = {
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -750,7 +755,7 @@ iso2mic(unsigned char *l, unsigned char *p, int len)
 static void
 mic2iso(unsigned char *mic, unsigned char *p, int len)
 {
-	static char koi2iso[] = {
+	static unsigned char koi2iso[] = {
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -776,7 +781,7 @@ mic2iso(unsigned char *mic, unsigned char *p, int len)
 static void
 win2mic(unsigned char *l, unsigned char *p, int len)
 {
-	static char win2koi[] = {
+	static unsigned char win2koi[] = {
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -802,7 +807,7 @@ win2mic(unsigned char *l, unsigned char *p, int len)
 static void
 mic2win(unsigned char *mic, unsigned char *p, int len)
 {
-	static char koi2win[] = {
+	static unsigned char koi2win[] = {
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -828,7 +833,7 @@ mic2win(unsigned char *mic, unsigned char *p, int len)
 static void
 alt2mic(unsigned char *l, unsigned char *p, int len)
 {
-	static char alt2koi[] = {
+	static unsigned char alt2koi[] = {
 		0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa,
 		0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0,
 		0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe,
@@ -854,7 +859,7 @@ alt2mic(unsigned char *l, unsigned char *p, int len)
 static void
 mic2alt(unsigned char *mic, unsigned char *p, int len)
 {
-	static char koi2alt[] = {
+	static unsigned char koi2alt[] = {
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -880,6 +885,61 @@ mic2alt(unsigned char *mic, unsigned char *p, int len)
  * end of Cyrillic support
  */
 
+
+/*-----------------------------------------------------------------
+ * WIN1250
+ * Microsoft's CP1250(windows-1250)
+ *-----------------------------------------------------------------*/
+static void
+win12502mic(unsigned char *l, unsigned char *p, int len)
+{
+	static unsigned char win1250_2_iso88592[] = {
+		0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+		0x88, 0x89, 0xA9, 0x8B, 0xA6, 0xAB, 0xAE, 0xAC,
+		0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+		0x98, 0x99, 0xB9, 0x9B, 0xB6, 0xBB, 0xBE, 0xBC,
+		0xA0, 0xB7, 0xA2, 0xA3, 0xA4, 0xA1, 0x00, 0xA7,
+		0xA8, 0x00, 0xAA, 0x00, 0x00, 0xAD, 0x00, 0xAF,
+		0xB0, 0x00, 0xB2, 0xB3, 0xB4, 0x00, 0x00, 0x00,
+		0xB8, 0xB1, 0xBA, 0x00, 0xA5, 0xBD, 0xB5, 0xBF,
+		0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+		0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
+		0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
+		0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
+		0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
+		0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
+		0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
+		0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
+	};
+
+	latin2mic_with_table(l, p, len, LC_ISO8859_2, win1250_2_iso88592);
+}
+static void
+mic2win1250(unsigned char *mic, unsigned char *p, int len)
+{
+	static unsigned char iso88592_2_win1250[] = {
+		0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+		0x88, 0x89, 0x00, 0x8B, 0x00, 0x00, 0x00, 0x00,
+		0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+		0x98, 0x99, 0x00, 0x9B, 0x00, 0x00, 0x00, 0x00,
+		0xA0, 0xA5, 0xA2, 0xA3, 0xA4, 0xBC, 0x8C, 0xA7,
+		0xA8, 0x8A, 0xAA, 0x8D, 0x8F, 0xAD, 0x8E, 0xAF,
+		0xB0, 0xB9, 0xB2, 0xB3, 0xB4, 0xBE, 0x9C, 0xA1,
+		0xB8, 0x9A, 0xBA, 0x9D, 0x9F, 0xBD, 0x9E, 0xBF,
+		0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+		0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
+		0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
+		0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
+		0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
+		0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
+		0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
+		0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
+	};
+
+	mic2latin_with_table(mic, p, len, LC_ISO8859_2, iso88592_2_win1250);
+}
+/*-----------------------------------------------------------------*/
+
 pg_encoding_conv_tbl pg_conv_tbl[] = {
 	{SQL_ASCII, "SQL_ASCII", 0, ascii2mic, mic2ascii},	/* SQL/ACII */
 	{EUC_JP, "EUC_JP", 0, euc_jp2mic, mic2euc_jp},		/* EUC_JP */
@@ -898,5 +958,6 @@ pg_encoding_conv_tbl pg_conv_tbl[] = {
 	{ALT, "ALT", 0, alt2mic, mic2alt},	/* CP866 */
 	{SJIS, "SJIS", 1, sjis2mic, mic2sjis},		/* SJIS */
 	{BIG5, "BIG5", 1, big52mic, mic2big5},		/* Big5 */
+	{WIN1250, "WIN1250", 1, win12502mic, mic2win1250},	/* WIN 1250 */
 	{-1, "", 0, 0, 0}			/* end mark */
 };
diff --git a/src/backend/utils/mb/wchar.c b/src/backend/utils/mb/wchar.c
index 0d557e30f6f5e63a8cd5b5a7805a919ef5fd0a98..0e95b1914b4f59debf4ad7e8563fa9c4b16e2f46 100644
--- a/src/backend/utils/mb/wchar.c
+++ b/src/backend/utils/mb/wchar.c
@@ -1,7 +1,10 @@
 /*
  * conversion functions between pg_wchar and multi-byte streams.
  * Tatsuo Ishii
- * $Id: wchar.c,v 1.8 1999/05/25 16:12:45 momjian Exp $
+ * $Id: wchar.c,v 1.9 1999/07/11 22:47:20 ishii Exp $
+ *
+ * WIN1250 client encoding updated by Pavel Behal
+ *
  */
 
 #include "mb/pg_wchar.h"
@@ -454,7 +457,8 @@ pg_wchar_tbl pg_wchar_table[] = {
 	{pg_latin12wchar_with_len, pg_latin1_mblen},		/* 30 */
 	{pg_latin12wchar_with_len, pg_latin1_mblen},		/* 31 */
 	{0, pg_sjis_mblen},			/* 32 */
-	{0, pg_big5_mblen}			/* 33 */
+	{0, pg_big5_mblen},			/* 33 */
+	{pg_latin12wchar_with_len, pg_latin1_mblen}		/* 34 */
 };
 
 /* returns the byte length of a word for mule internal code */
diff --git a/src/bin/psql/psqlHelp.h b/src/bin/psql/psqlHelp.h
index f0789f553a16255b2214ecabcd36506dbbf742a7..63540a7998714c1a16411eb66cd9697439c44190 100644
--- a/src/bin/psql/psqlHelp.h
+++ b/src/bin/psql/psqlHelp.h
@@ -5,7 +5,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: psqlHelp.h,v 1.71 1999/06/17 15:15:51 momjian Exp $
+ * $Id: psqlHelp.h,v 1.72 1999/07/11 22:47:21 ishii Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -333,7 +333,7 @@ TIMEZONE|XACTISOLEVEL|CLIENT_ENCODING|SERVER_ENCODING"},
 \tSET TRANSACTION ISOLATION LEVEL 'SERIALIZABLE'|'READ COMMITTED'\n\
 \tSET CLIENT_ENCODING|NAMES TO 'EUC_JP'|'SJIS'|'EUC_CN'|'EUC_KR'|'EUC_TW'|\n\
 \t  'BIG5'|'MULE_INTERNAL'|'LATIN1'|'LATIN2'|'LATIN3'|'LATIN4'|'LATIN5'|\n\
-\t  'KOI8|'WIN'|'ALT'\n\
+\t  'KOI8|'WIN'|'ALT'|'WIN1250'\n\
 \tSET SERVER_ENCODING TO 'EUC_JP'|'SJIS'|'EUC_CN'|'EUC_KR'|'EUC_TW'|\n\
 \t  'BIG5'|'MULE_INTERNAL'|'LATIN1'|'LATIN2'|'LATIN3'|'LATIN4'|'LATIN5'|\n\
 \t  'KOI8|'WIN'|'ALT'"},
diff --git a/src/include/mb/pg_wchar.h b/src/include/mb/pg_wchar.h
index 5e28b9a4f317b11331d6f91f384bd9508dded4a3..c007560f41e02e33d28c0bb1fe78d9e8d1bcd443 100644
--- a/src/include/mb/pg_wchar.h
+++ b/src/include/mb/pg_wchar.h
@@ -1,4 +1,4 @@
-/* $Id: pg_wchar.h,v 1.8 1999/05/25 16:14:04 momjian Exp $ */
+/* $Id: pg_wchar.h,v 1.9 1999/07/11 22:47:19 ishii Exp $ */
 
 #ifndef PG_WCHAR_H
 #define PG_WCHAR_H
@@ -29,6 +29,7 @@
 /* followings are for client encoding only */
 #define SJIS 32					/* Shift JIS */
 #define BIG5 33					/* Big5 */
+#define WIN1250  34				/* windows-1250 */
 
 #ifdef MULTIBYTE
 typedef unsigned int pg_wchar;
@@ -79,7 +80,7 @@ typedef struct
 {
 	int			encoding;		/* encoding symbol value */
 	char	   *name;			/* encoding name */
-	int			is_client_only; /* 0: server/client bothg supported 1:
+	int			is_client_only; /* 0: server/client both supported 1:
 								 * client only */
 	void		(*to_mic) ();	/* client encoding to MIC */
 	void		(*from_mic) (); /* MIC to client encoding */