From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 16 Aug 2005 00:48:29 +0000 (+0000)
Subject: Reject operator names >= NAMEDATALEN characters.  These will not work
X-Git-Tag: REL8_0_4~30
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=96fc1a4f778eaad63c4bb41622e37a07fd433749;p=thirdparty%2Fpostgresql.git

Reject operator names >= NAMEDATALEN characters.  These will not work
anyway, and in assert-enabled builds you are likely to get an assertion
failure.  Backpatch as far as 7.3; 7.2 seems not to have the problem.
---

diff --git a/src/backend/parser/scan.l b/src/backend/parser/scan.l
index 7e944467bd0..433e42bf6a0 100644
--- a/src/backend/parser/scan.l
+++ b/src/backend/parser/scan.l
@@ -10,7 +10,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/parser/scan.l,v 1.119 2004/12/31 22:00:27 pgsql Exp $
+ *	  $PostgreSQL: pgsql/src/backend/parser/scan.l,v 1.119.4.1 2005/08/16 00:48:29 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -534,6 +534,15 @@ other			.
 							return yytext[0];
 					}
 
+					/*
+					 * Complain if operator is too long.  Unlike the case
+					 * for identifiers, we make this an error not a notice-
+					 * and-truncate, because the odds are we are looking at
+					 * a syntactic mistake anyway.
+					 */
+					if (nchars >= NAMEDATALEN)
+						yyerror("operator too long");
+
 					/* Convert "!=" operator to "<>" for compatibility */
 					if (strcmp(yytext, "!=") == 0)
 						yylval.str = pstrdup("<>");