Found another small glitch in tsearch API: the two versions of ts_lexize()

are really redundant, since we invented a regdictionary alias type.
We can have just one function, declared as taking regdictionary, and
it will handle both behaviors.  Noted while working on documentation.

src/backend/tsearch/dict.c

@@ -7,41 +7,31 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/tsearch/dict.c,v 1.1 2007/08/21 01:11:18 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/tsearch/dict.c,v 1.2 2007/10/19 22:01:45 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
 #include "postgres.h"
 
-#include "funcapi.h"
-#include "access/genam.h"
-#include "access/heapam.h"
-#include "access/skey.h"
-#include "catalog/indexing.h"
-#include "catalog/namespace.h"
-#include "catalog/pg_ts_dict.h"
 #include "catalog/pg_type.h"
 #include "tsearch/ts_cache.h"
-#include "tsearch/ts_public.h"
 #include "tsearch/ts_utils.h"
-#include "utils/array.h"
 #include "utils/builtins.h"
-#include "utils/fmgroids.h"
-#include "utils/rel.h"
-#include "utils/syscache.h"
 
 
 /*
  * Lexize one word by dictionary, mostly debug function
  */
-static ArrayType *
-ts_lexize_workhorse(Oid dictId, text *in)
+Datum
+ts_lexize(PG_FUNCTION_ARGS)
 {
+	Oid			dictId = PG_GETARG_OID(0);
+	text	   *in = PG_GETARG_TEXT_P(1);
+	ArrayType  *a;
 	TSDictionaryCacheEntry *dict;
 	TSLexeme   *res,
 			   *ptr;
 	Datum	   *da;
-	ArrayType  *a;
 	DictSubState dstate = {false, false, NULL};
 
 	dict = lookup_ts_dictionary_cache(dictId);
@@ -65,12 +55,12 @@ ts_lexize_workhorse(Oid dictId, text *in)
 	}
 
 	if (!res)
-		return NULL;
+		PG_RETURN_NULL();
 
 	ptr = res;
 	while (ptr->lexeme)
 		ptr++;
-	da = (Datum *) palloc(sizeof(Datum) * (ptr - res + 1));
+	da = (Datum *) palloc(sizeof(Datum) * (ptr - res));
 	ptr = res;
 	while (ptr->lexeme)
 	{
@@ -95,37 +85,5 @@ ts_lexize_workhorse(Oid dictId, text *in)
 	pfree(res);
 	pfree(da);
 
-	return a;
-}
-
-Datum
-ts_lexize_byid(PG_FUNCTION_ARGS)
-{
-	Oid			dictId = PG_GETARG_OID(0);
-	text	   *in = PG_GETARG_TEXT_P(1);
-	ArrayType  *a;
-
-	a = ts_lexize_workhorse(dictId, in);
-
-	if (a)
 	PG_RETURN_POINTER(a);
-	else
-		PG_RETURN_NULL();
-}
-
-Datum
-ts_lexize_byname(PG_FUNCTION_ARGS)
-{
-	text	   *dictname = PG_GETARG_TEXT_P(0);
-	text	   *in = PG_GETARG_TEXT_P(1);
-	Oid			dictId;
-	ArrayType  *a;
-
-	dictId = TSDictionaryGetDictid(textToQualifiedNameList(dictname), false);
-	a = ts_lexize_workhorse(dictId, in);
-
-	if (a)
-		PG_RETURN_POINTER(a);
-	else
-		PG_RETURN_NULL();
 }

src/include/catalog/catversion.h

@@ -37,7 +37,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.433 2007/10/19 19:48:34 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.434 2007/10/19 22:01:45 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	200710191
+#define CATALOG_VERSION_NO	200710192
 
 #endif

src/include/catalog/pg_proc.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.475 2007/10/19 19:48:34 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.476 2007/10/19 22:01:45 tgl Exp $
  *
  * NOTES
  *	  The script catalog/genbki.sh reads this file and generates .bki
@@ -4326,9 +4326,7 @@ DESCR("");
 DATA(insert OID = 3721 (  prsd_lextype		PGNSP PGUID 12 1 0 f f t f i 1 2281 "2281" _null_ _null_ _null_ prsd_lextype - _null_ _null_ ));
 DESCR("");
 
-DATA(insert OID = 3723 (  ts_lexize			PGNSP PGUID 12 1 0 f f t f i 2 1009 "26 25" _null_ _null_ _null_ ts_lexize_byid - _null_ _null_ ));
-DESCR("normalize one word by dictionary");
-DATA(insert OID = 3724 (  ts_lexize			PGNSP PGUID 12 1 0 f f t f s 2 1009 "25 25" _null_ _null_ _null_ ts_lexize_byname - _null_ _null_ ));
+DATA(insert OID = 3723 (  ts_lexize			PGNSP PGUID 12 1 0 f f t f i 2 1009 "3769 25" _null_ _null_ _null_ ts_lexize - _null_ _null_ ));
 DESCR("normalize one word by dictionary");
 
 DATA(insert OID = 3725 (  dsimple_init		PGNSP PGUID 12 1 0 f f t f i 1 2281 "2281" _null_ _null_ _null_ dsimple_init - _null_ _null_ ));

src/include/tsearch/ts_utils.h

@@ -5,7 +5,7 @@
  *
  * Copyright (c) 1998-2007, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/include/tsearch/ts_utils.h,v 1.4 2007/09/10 12:36:41 teodor Exp $
+ * $PostgreSQL: pgsql/src/include/tsearch/ts_utils.h,v 1.5 2007/10/19 22:01:45 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -222,8 +222,7 @@ extern Datum prsd_lextype(PG_FUNCTION_ARGS);
 /*
  * Dictionary interface to SQL
  */
-extern Datum ts_lexize_byid(PG_FUNCTION_ARGS);
-extern Datum ts_lexize_byname(PG_FUNCTION_ARGS);
+extern Datum ts_lexize(PG_FUNCTION_ARGS);
 
 /*
  * Simple built-in dictionary