As suggested by Tom, this patch restricts the right-hand argument of

bytealike to TEXT.

This leaves like_escape_bytea() without anything to do, but I left it in
place in anticipation of the eventual bytea pattern selectivity
functions. If there is agreement that this would be the best long term
solution, I'll take it as a TODO for 7.4.

Joe Conway

src/backend/utils/adt/like.c

@@ -11,7 +11,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	$Header: /cvsroot/pgsql/src/backend/utils/adt/like.c,v 1.49 2002/06/20 20:29:37 momjian Exp $
+ *	$Header: /cvsroot/pgsql/src/backend/utils/adt/like.c,v 1.50 2002/08/22 04:45:11 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -264,7 +264,7 @@ Datum
 bytealike(PG_FUNCTION_ARGS)
 {
 	bytea	   *str = PG_GETARG_BYTEA_P(0);
-	bytea	   *pat = PG_GETARG_BYTEA_P(1);
+	text	   *pat = PG_GETARG_TEXT_P(1);
 	bool		result;
 	unsigned char *s,
 			   *p;
@@ -285,7 +285,7 @@ Datum
 byteanlike(PG_FUNCTION_ARGS)
 {
 	bytea	   *str = PG_GETARG_BYTEA_P(0);
-	bytea	   *pat = PG_GETARG_BYTEA_P(1);
+	text	   *pat = PG_GETARG_TEXT_P(1);
 	bool		result;
 	unsigned char *s,
 			   *p;

src/include/catalog/pg_operator.h

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_operator.h,v 1.106 2002/07/24 19:11:12 petere Exp $
+ * $Id: pg_operator.h,v 1.107 2002/08/22 04:45:11 momjian Exp $
  *
  * NOTES
  *	  the genbki.sh script reads this file and generates .bki
@@ -827,9 +827,9 @@ DATA(insert OID = 1957 ( "<"	   PGNSP PGUID b f 17 17	16 1959 1960 0	  0   0   0
 DATA(insert OID = 1958 ( "<="	   PGNSP PGUID b f 17 17	16 1960 1959 0	  0   0   0 byteale scalarltsel scalarltjoinsel ));
 DATA(insert OID = 1959 ( ">"	   PGNSP PGUID b f 17 17	16 1957 1958 0	  0   0   0 byteagt scalargtsel scalargtjoinsel ));
 DATA(insert OID = 1960 ( ">="	   PGNSP PGUID b f 17 17	16 1958 1957 0	  0   0   0 byteage scalargtsel scalargtjoinsel ));
-DATA(insert OID = 2016 (  "~~"	   PGNSP PGUID b f 17 17	16 0	2017 0	  0   0   0 bytealike likesel likejoinsel ));
+DATA(insert OID = 2016 (  "~~"	   PGNSP PGUID b f 17 25	16 0	2017 0	  0   0   0 bytealike likesel likejoinsel ));
 #define OID_BYTEA_LIKE_OP		2016
-DATA(insert OID = 2017 (  "!~~"    PGNSP PGUID b f 17 17	16 0	2016 0	  0   0   0 byteanlike nlikesel nlikejoinsel ));
+DATA(insert OID = 2017 (  "!~~"    PGNSP PGUID b f 17 25	16 0	2016 0	  0   0   0 byteanlike nlikesel nlikejoinsel ));
 DATA(insert OID = 2018 (  "||"	   PGNSP PGUID b f 17 17	17 0	0	 0	  0   0   0 byteacat - - ));
 
 /* timestamp operators */

src/include/catalog/pg_proc.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_proc.h,v 1.262 2002/08/22 04:41:06 momjian Exp $
+ * $Id: pg_proc.h,v 1.263 2002/08/22 04:45:11 momjian Exp $
  *
  * NOTES
  *	  The script catalog/genbki.sh reads this file and generates .bki
@@ -2773,13 +2773,13 @@ DESCR("adjust time precision");
 DATA(insert OID = 1969 (  timetz		   PGNSP PGUID 12 f f t f i 2 1266 "1266 23"	timetz_scale - _null_ ));
 DESCR("adjust time with time zone precision");
 
-DATA(insert OID = 2005 (  bytealike		   PGNSP PGUID 12 f f t f i 2 16 "17 17" bytealike - _null_ ));
+DATA(insert OID = 2005 (  bytealike		   PGNSP PGUID 12 f f t f i 2 16 "17 25" bytealike - _null_ ));
 DESCR("matches LIKE expression");
-DATA(insert OID = 2006 (  byteanlike	   PGNSP PGUID 12 f f t f i 2 16 "17 17" byteanlike - _null_ ));
+DATA(insert OID = 2006 (  byteanlike	   PGNSP PGUID 12 f f t f i 2 16 "17 25" byteanlike - _null_ ));
 DESCR("does not match LIKE expression");
-DATA(insert OID = 2007 (  like			   PGNSP PGUID 12 f f t f i 2 16 "17 17"	bytealike - _null_ ));
+DATA(insert OID = 2007 (  like			   PGNSP PGUID 12 f f t f i 2 16 "17 25"	bytealike - _null_ ));
 DESCR("matches LIKE expression");
-DATA(insert OID = 2008 (  notlike		   PGNSP PGUID 12 f f t f i 2 16 "17 17"	byteanlike - _null_ ));
+DATA(insert OID = 2008 (  notlike		   PGNSP PGUID 12 f f t f i 2 16 "17 25"	byteanlike - _null_ ));
 DESCR("does not match LIKE expression");
 DATA(insert OID = 2009 (  like_escape	   PGNSP PGUID 12 f f t f i 2 17 "17 17" like_escape_bytea - _null_ ));
 DESCR("convert match pattern to use backslash escapes");