Remove obsolete uses of lanispl. Only used in pg_dump now, but can be

removed altogether if pg_dump doesn't need it anymore.

doc/src/sgml/catalogs.sgml

 <!--
  Documentation of the system catalogs, directed toward PostgreSQL developers
- $Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.52 2002/08/05 02:30:46 tgl Exp $
+ $Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.53 2002/08/13 17:22:08 petere Exp $
  -->
 
 <chapter id="catalogs">
@@ -1991,8 +1991,10 @@
       <entry></entry>
       <entry>
        This is false for internal languages (such as SQL) and true for
-       dynamically loaded language handler modules.  It essentially
-       means that, if it is true, the language may be dropped.
+       user-defined languages.  Currently,
+       <application>pg_dump</application> still uses this to determine
+       which languages need to be dumped, but this may be replaced by
+       a different mechanism sometime.
       </entry>
      </row>
 

src/backend/commands/proclang.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/proclang.c,v 1.39 2002/08/05 03:29:17 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/proclang.c,v 1.40 2002/08/13 17:22:08 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -56,7 +56,7 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
 	 * Check permission
 	 */
 	if (!superuser())
-		elog(ERROR, "Only users with Postgres superuser privilege are "
+		elog(ERROR, "Only users with superuser privilege are "
 			 "permitted to create procedural languages");
 
 	/*
@@ -77,10 +77,10 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
 	MemSet(typev, 0, sizeof(typev));
 	procOid = LookupFuncName(stmt->plhandler, 0, typev);
 	if (!OidIsValid(procOid))
-		elog(ERROR, "PL handler function %s() doesn't exist",
+		elog(ERROR, "function %s() doesn't exist",
 			 NameListToString(stmt->plhandler));
 	if (get_func_rettype(procOid) != InvalidOid)
-		elog(ERROR, "PL handler function %s() does not return type \"opaque\"",
+		elog(ERROR, "function %s() does not return type \"opaque\"",
 			 NameListToString(stmt->plhandler));
 
 	/* validate the validator function */
@@ -89,7 +89,7 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
 		typev[0] = OIDOID;
 		valProcOid = LookupFuncName(stmt->plvalidator, 1, typev);
 		if (!OidIsValid(valProcOid))
-			elog(ERROR, "PL validator function %s(oid) doesn't exist",
+			elog(ERROR, "function %s(oid) doesn't exist",
 				 NameListToString(stmt->plvalidator));
 	}
 	else
@@ -162,7 +162,7 @@ DropProceduralLanguage(DropPLangStmt *stmt)
 	 * Check permission
 	 */
 	if (!superuser())
-		elog(ERROR, "Only users with Postgres superuser privilege are "
+		elog(ERROR, "Only users with superuser privilege are "
 			 "permitted to drop procedural languages");
 
 	/*
@@ -177,10 +177,6 @@ DropProceduralLanguage(DropPLangStmt *stmt)
 	if (!HeapTupleIsValid(langTup))
 		elog(ERROR, "Language %s doesn't exist", languageName);
 
-	if (!((Form_pg_language) GETSTRUCT(langTup))->lanispl)
-		elog(ERROR, "Language %s isn't a created procedural language",
-			 languageName);
-
 	object.classId = get_system_catalog_relid(LanguageRelationName);
 	object.objectId = HeapTupleGetOid(langTup);
 	object.objectSubId = 0;

src/backend/commands/trigger.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.124 2002/08/05 03:29:17 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.125 2002/08/13 17:22:08 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -74,7 +74,6 @@ CreateTrigger(CreateTrigStmt *stmt, bool forConstraint)
 	HeapTuple	tuple;
 	Oid			fargtypes[FUNC_MAX_ARGS];
 	Oid			funcoid;
-	Oid			funclang;
 	Oid			trigoid;
 	int			found = 0;
 	int			i;
@@ -207,24 +206,8 @@ CreateTrigger(CreateTrigStmt *stmt, bool forConstraint)
 	if (((Form_pg_proc) GETSTRUCT(tuple))->prorettype != 0)
 		elog(ERROR, "CreateTrigger: function %s() must return OPAQUE",
 			 NameListToString(stmt->funcname));
-	funclang = ((Form_pg_proc) GETSTRUCT(tuple))->prolang;
 	ReleaseSysCache(tuple);
 
-	if (funclang != ClanguageId && funclang != INTERNALlanguageId)
-	{
-		HeapTuple	langTup;
-
-		langTup = SearchSysCache(LANGOID,
-								 ObjectIdGetDatum(funclang),
-								 0, 0, 0);
-		if (!HeapTupleIsValid(langTup))
-			elog(ERROR, "CreateTrigger: cache lookup for language %u failed",
-				 funclang);
-		if (((Form_pg_language) GETSTRUCT(langTup))->lanispl == false)
-			elog(ERROR, "CreateTrigger: only internal, C and PL functions are supported");
-		ReleaseSysCache(langTup);
-	}
-
 	/*
 	 * Build the new pg_trigger tuple.
 	 */

src/backend/utils/fmgr/fmgr.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/fmgr/fmgr.c,v 1.60 2002/06/20 20:29:39 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/fmgr/fmgr.c,v 1.61 2002/08/13 17:22:08 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -324,6 +324,7 @@ fmgr_info_other_lang(Oid functionId, FmgrInfo *finfo, HeapTuple procedureTuple)
 	Oid			language = procedureStruct->prolang;
 	HeapTuple	languageTuple;
 	Form_pg_language languageStruct;
+	FmgrInfo	plfinfo;
 
 	languageTuple = SearchSysCache(LANGOID,
 								   ObjectIdGetDatum(language),
@@ -332,27 +333,19 @@ fmgr_info_other_lang(Oid functionId, FmgrInfo *finfo, HeapTuple procedureTuple)
 		elog(ERROR, "fmgr_info: cache lookup for language %u failed",
 			 language);
 	languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);
-	if (languageStruct->lanispl)
-	{
-		FmgrInfo	plfinfo;
 
-		fmgr_info(languageStruct->lanplcallfoid, &plfinfo);
-		finfo->fn_addr = plfinfo.fn_addr;
+	fmgr_info(languageStruct->lanplcallfoid, &plfinfo);
+	finfo->fn_addr = plfinfo.fn_addr;
+
+	/*
+	 * If lookup of the PL handler function produced nonnull fn_extra,
+	 * complain --- it must be an oldstyle function! We no longer
+	 * support oldstyle PL handlers.
+	 */
+	if (plfinfo.fn_extra != NULL)
+		elog(ERROR, "fmgr_info: language %u has old-style handler",
+			 language);
 
-		/*
-		 * If lookup of the PL handler function produced nonnull fn_extra,
-		 * complain --- it must be an oldstyle function! We no longer
-		 * support oldstyle PL handlers.
-		 */
-		if (plfinfo.fn_extra != NULL)
-			elog(ERROR, "fmgr_info: language %u has old-style handler",
-				 language);
-	}
-	else
-	{
-		elog(ERROR, "fmgr_info: function %u: unsupported language %u",
-			 functionId, language);
-	}
 	ReleaseSysCache(languageTuple);
 }