1 files changed, 0 insertions, 110 deletions
diff --git a/src/backend/parser/parser.c b/src/backend/parser/parser.c
deleted file mode 100644
index f4cd24e0c4f..00000000000
--- a/src/backend/parser/parser.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * parser.c
- *		Main entry point/driver for PostgreSQL grammar
- *
- * Note that the grammar is not allowed to perform any table access
- * (since we need to be able to do basic parsing even while inside an
- * aborted transaction).  Therefore, the data structures returned by
- * the grammar are "raw" parsetrees that still need to be analyzed by
- * parse_analyze.
- *
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/parser/parser.c,v 1.53 2002/06/20 20:29:33 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
-#include "postgres.h"
-
-#include "nodes/parsenodes.h"
-#include "parser/gramparse.h"
-#include "parser/parse.h"
-#include "parser/parser.h"
-#include "parser/parse_expr.h"
-
-
-List	   *parsetree;			/* result of parsing is left here */
-
-static int	lookahead_token;	/* one-token lookahead */
-static bool have_lookahead;		/* lookahead_token set? */
-
-
-/*
- * parser
- *		Given a query in string form, and optionally info about
- *		parameter types, do lexical and syntactic analysis.
- *
- * Returns a list of raw (un-analyzed) parse trees.
- */
-List *
-parser(StringInfo str, Oid *typev, int nargs)
-{
-	int			yyresult;
-
-	parsetree = NIL;			/* in case parser forgets to set it */
-	have_lookahead = false;
-
-	scanner_init(str);
-	parser_init(typev, nargs);
-	parse_expr_init();
-
-	yyresult = yyparse();
-
-	scanner_finish();
-	clearerr(stdin);
-
-	if (yyresult)				/* error */
-		return NIL;
-
-	return parsetree;
-}
-
-
-/*
- * Intermediate filter between parser and base lexer (base_yylex in scan.l).
- *
- * The filter is needed because in some cases SQL92 requires more than one
- * token lookahead.  We reduce these cases to one-token lookahead by combining
- * tokens here, in order to keep the grammar LR(1).
- *
- * Using a filter is simpler than trying to recognize multiword tokens
- * directly in scan.l, because we'd have to allow for comments between the
- * words ...
- */
-int
-yylex(void)
-{
-	int			cur_token;
-
-	/* Get next token --- we might already have it */
-	if (have_lookahead)
-	{
-		cur_token = lookahead_token;
-		have_lookahead = false;
-	}
-	else
-		cur_token = base_yylex();
-
-	/* Do we need to look ahead for a possible multiword token? */
-	switch (cur_token)
-	{
-		case UNION:
-			/* UNION JOIN must be reduced to a single UNIONJOIN token */
-			lookahead_token = base_yylex();
-			if (lookahead_token == JOIN)
-				cur_token = UNIONJOIN;
-			else
-				have_lookahead = true;
-			break;
-
-		default:
-			break;
-	}
-
-	return cur_token;
-}