here are some patches for 6.5.0 which I already submitted but have never

been applied. The patches are in the .tar.gz attachment at the end:

varchar-array.patch     this patch adds support for arrays of bpchar() and
                        varchar(), which where always missing from postgres.

                        These datatypes can be used to replace the _char4,
                        _char8, etc., which were dropped some time ago.

block-size.patch        this patch fixes many errors in the parser and other
                        program which happen with very large query statements
                        (> 8K) when using a page size larger than 8192.

                        This patch is needed if you want to submit queries
                        larger than 8K. Postgres supports tuples up to 32K
                        but you can't insert them because you can't submit
                        queries larger than 8K. My patch fixes this problem.

                        The patch also replaces all the occurrences of `8192'
                        and `1<<13' in the sources with the proper constants
                        defined in include files. You should now never find
                        8192 hardwired in C code, just to make code clearer.


--
Massimo Dal Zotto

src/interfaces/ecpg/preproc/Makefile

@@ -38,7 +38,9 @@ ecpg: $(OBJ)
 
 pgc.c: pgc.l
 	$(LEX) $<
-	mv lex.yy.c pgc.c
+	sed -e 's/#define YY_BUF_SIZE .*/#define YY_BUF_SIZE 65536/' \
+		<lex.yy.c >pgc.c
+	rm -f lex.yy.c
 
 preproc.o : preproc.h ../include/ecpgtype.h keywords.c c_keywords.c ecpg_keywords.c
 type.o : ../include/ecpgtype.h

src/interfaces/ecpg/preproc/pgc.l

@@ -28,6 +28,11 @@
 #include "preproc.h"
 #include "utils/builtins.h"
 
+#ifdef  YY_READ_BUF_SIZE
+#undef  YY_READ_BUF_SIZE
+#endif
+#define YY_READ_BUF_SIZE	MAX_PARSE_BUFFER
+
 /* some versions of lex define this as a macro */
 #if defined(yywrap)
 #undef yywrap

src/interfaces/libpq/fe-connect.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.95 1999/03/29 08:19:36 ishii Exp $
+ *	  $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.96 1999/05/03 19:10:40 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -876,9 +876,9 @@ makeEmptyPGconn(void)
 	conn->asyncStatus = PGASYNC_IDLE;
 	conn->notifyList = DLNewList();
 	conn->sock = -1;
-	conn->inBufSize = 8192;
+	conn->inBufSize = PQ_BUFFER_SIZE;
 	conn->inBuffer = (char *) malloc(conn->inBufSize);
-	conn->outBufSize = 8192;
+	conn->outBufSize = PQ_BUFFER_SIZE;
 	conn->outBuffer = (char *) malloc(conn->outBufSize);
 	if (conn->inBuffer == NULL || conn->outBuffer == NULL)
 	{

src/interfaces/libpq/fe-print.c

@@ -9,7 +9,7 @@
  * didn't really belong there.
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-print.c,v 1.21 1999/04/25 18:16:47 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-print.c,v 1.22 1999/05/03 19:10:41 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -105,7 +105,7 @@ PQprint(FILE *fout,
 		int			usePipe = 0;
 		pqsigfunc	oldsigpipehandler = NULL;
 		char	   *pagerenv;
-		char		buf[8192 * 2 + 1];
+		char		buf[MAX_QUERY_SIZE + 1];
 
 		nTups = PQntuples(res);
 		if (!(fieldNames = (char **) calloc(nFields, sizeof(char *))))

src/interfaces/libpq/libpq-int.h

@@ -11,7 +11,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: libpq-int.h,v 1.6 1999/02/13 23:22:42 momjian Exp $
+ * $Id: libpq-int.h,v 1.7 1999/05/03 19:10:42 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -255,7 +255,7 @@ extern int	pqFlush(PGconn *conn);
 extern int	pqWait(int forRead, int forWrite, PGconn *conn);
 
 /* max length of message to send  */
-#define MAX_MESSAGE_LEN 8193
+#define MAX_MESSAGE_LEN MAX_QUERY_SIZE
 
 /* maximum number of fields in a tuple */
 #define MAX_FIELDS 512

src/interfaces/odbc/info.c

@@ -337,7 +337,7 @@ RETCODE result;
 
     case SQL_MAX_ROW_SIZE: /* ODBC 2.0 */
 		len = 4;
-        value = 8192;
+        value = BLCKSZ;
         break;
 
     case SQL_MAX_ROW_SIZE_INCLUDES_LONG: /* ODBC 2.0 */
@@ -348,9 +348,9 @@ RETCODE result;
         break;
 
     case SQL_MAX_STATEMENT_LEN: /* ODBC 2.0 */
-        /* maybe this should be 8192? */
+        /* maybe this should be 0? */
 		len = 4;
-        value = 0;
+        value = MAX_QUERY_SIZE;
         break;
 
     case SQL_MAX_TABLE_NAME_LEN: /* ODBC 1.0 */

src/interfaces/odbc/psqlodbc.h

@@ -49,7 +49,8 @@ typedef UInt4 Oid;
 #endif
 
 /* Limits */
-#define MAX_MESSAGE_LEN				8192
+#define MAX_QUERY_SIZE				(BLCKSZ*2)
+#define MAX_MESSAGE_LEN				MAX_QUERY_SIZE
 #define MAX_CONNECT_STRING			4096
 #define ERROR_MSG_LENGTH			4096
 #define FETCH_MAX					100		/* default number of rows to cache for declare/fetch */

src/interfaces/python/pgmodule.c

@@ -51,7 +51,7 @@ static char		*PyPgVersion = "2.2";
 #define CHECK_OPEN        1
 #define CHECK_CLOSE       2
 
-#define MAX_BUFFER_SIZE   8192	/* maximum transaction size */
+#define MAX_BUFFER_SIZE   MAX_QUERY_SIZE	/* maximum transaction size */
 
 #ifndef NO_DIRECT
 #define DIRECT_ACCESS     1		/* enables direct access functions */