diff --git a/WEGA/contrib/ingres/dbs/src/yyyacc/intyacc.c b/WEGA/contrib/ingres/dbs/src/yyyacc/intyacc.c
new file mode 100644
index 0000000..545684d
--- /dev/null
+++ b/WEGA/contrib/ingres/dbs/src/yyyacc/intyacc.c
@@ -0,0 +1,207 @@
+# include	<stdio.h>
+# include	"TABLES"
+
+/*
+**	INTYACC  --  interactive parser for yacc tables
+**
+**
+**	insert YACC tables
+**
+**	short	yygo[]		= { ... };
+**	short	yypgo[]		= { ... };
+**	short	yyr1[]		= { ... };
+**	short	yyr2[]		= { ... };
+**	short	yyact[]		= { ... };
+**	short	yypact[]	= { ... };
+**	char	*yysterm[]	= { ... };
+**
+**	as file TABLES !!!
+*/
+
+# define	ACTION(state)		((state) & 07777)
+# define	OPERATION(state)	((state) >> 12)
+
+/* the OPERATIONS */
+# define	ERROR			0
+# define	SKIP			1
+# define	SHIFT			2
+# define	REDUCE			3
+# define	ACCEPT			4
+
+/* SIZE for state and value stack */
+# define	MAXDEPTH		150
+
+
+main()
+{
+	register int	state;		/* current parser state		*/
+	register int	token;		/* current input token number	*/
+	short		states[MAXDEPTH];	/*    state stack	*/
+	register short	*ps;		/* pointer to state stack	*/
+	int		values[10 * MAXDEPTH];	/*    token stack	*/
+	register int	*pv;		/* pointer to token stack	*/
+	register short	*act;		/* pointer to performing action	*/
+	register int	next_state;
+	register int	i;
+	int		r_ahead;	/* read ahead flag		*/
+	int		new_alter;	/* flag for a new alternative	*/
+	int		alter[50];	/*            alternative stack	*/
+	int		a;		/* pointer to alternative stack	*/
+	char		cbuf[6];	/*            character buffer	*/
+	char		*c;		/* pointer to character buffer	*/
+
+newstart:
+	values[0] = -2;	/* no TOKEN given ! ! ! */
+
+restart:
+	printf("\n\n");
+	state = 0;
+	token = -1;
+	ps = &states[-1];
+	pv = &values[-1];
+
+stack:
+	*++ps = state;	/* push state into state stack */
+
+new_state:
+	/* set act to point to the parsing actions for the new state */
+	i = yypact[state + 1];
+	act = &yyact[i];
+
+next_action:		/* get the next action, and perform it */
+	next_state = ACTION(*act);
+	switch (OPERATION(*act++))	/* switch on operation */
+	{
+	  case SKIP:
+		if (r_ahead = token == -1)
+		{
+			/* get next token */
+			token = *++pv;
+			a = 0;
+			new_alter = 1;
+		}
+		if (token == -2)
+		{
+			if (new_alter)
+				printf("\n(%2d)", a);
+			else
+				new_alter = 1;
+			if (next_state)
+				printf(" %s", yysterm[next_state - 256]);
+			else
+				printf(" EOF");
+			alter[a++] = next_state;
+		}
+		if (next_state != token)
+		{
+			act++;
+			if (token != -2)
+			{
+				token = -1;
+				--pv;
+			}
+		}
+		else if (r_ahead)
+		{
+			if (next_state)
+				printf(" %s", yysterm[next_state - 256]);
+			else
+				printf(" EOF");
+		}
+		else
+		{
+			if (next_state)
+				printf(" %s", yysterm[next_state - 256]);
+			else
+				printf(" EOF");
+		}
+		goto next_action;	/* get next action */
+
+	  case SHIFT:		/* goto next_state */
+		state = next_state;
+		token = -1;
+		goto stack;	/* stack new state and value */
+
+	  case REDUCE:		/* rule next_state */
+		if (token == -2 && new_alter)
+		{
+			printf("\n(%2d)", a);
+			new_alter = 0;
+		}
+		printf(" R%d", next_state);
+		ps -= yyr2[next_state];		/* pop state stack */
+
+		/* consult goto table to find next state */
+		i = yyr1[next_state];
+		i = yypgo[i];
+		act = &yygo[i];
+		next_state = *ps;
+		for ( ; *act != next_state && *act >= 0; act += 2)
+			continue;
+		state = act[1];
+		goto stack;  /* stack new state and value */
+
+	  case ACCEPT:
+		printf("\n\nE N D   O F   G R A M M A R\n");
+		return (0);
+
+	  case ERROR:
+		if (token != -2)
+		{
+			printf("\n\nU N E X P E C T E D   E R R O R\n");
+			return (2);
+		}
+
+		i = a - 1;
+		if (a == 1)
+			goto suggest;
+
+		/* read alternative */
+		printf("\n(??) ");
+		fflush(stdout);
+		c = cbuf;
+		while (*c = getchar())
+		{
+			switch (*c)
+			{
+			  case '\n':
+				*c = 0;
+				goto newtoken;
+
+			  case '\b':
+				*--pv = -2;
+				printf("q");
+				break;
+			  case '\033':
+				goto restart;
+
+			  case '\025':
+				goto newstart;
+
+			  case '0':
+			  case '1':
+			  case '2':
+			  case '3':
+			  case '4':
+			  case '5':
+			  case '6':
+			  case '7':
+			  case '8':
+			  case '9':
+				c++;
+				break;
+			}
+		}
+newtoken:
+		i = atoi(cbuf);
+suggest:
+		if (i >= a)
+		{
+			printf("\n\nG R A M M A R   I N T E R R U P T E D\n");
+			return (1);
+		}
+		*pv++ = alter[i];
+		*pv = -2;
+		goto restart;
+	}
+}