Revert temp_tablespaces because of coding problems, per Tom.

doc/src/sgml/config.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.114 2007/03/03 18:46:40 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.115 2007/03/06 02:06:12 momjian Exp $ -->
 
 <chapter Id="runtime-config">
   <title>Server Configuration</title>
@@ -3440,35 +3440,6 @@ SELECT * FROM parent WHERE key = 2400;
       </listitem>
      </varlistentry>
 
-     <varlistentry id="guc-temp-tablespaces" xreflabel="temp_tablespaces">
-      <term><varname>temp_tablespaces</varname> (<type>string</type>)</term>
-      <indexterm>
-       <primary><varname>temp_tablespaces</> configuration parameter</primary>
-      </indexterm>
-      <indexterm><primary>tablespace</><secondary>temp</></>
-      <listitem>
-       <para>
-        This variable specifies tablespaces in which to create temp
-        objects (temp tables and indexes on temp tables) when a 
-        <command>CREATE</> command does not explicitly specify a tablespace 
-        and temp files when necessary (eg. for sorting operations).
-       </para>
-
-       <para>
-        The value is either a list of names of tablespaces, or an empty 
-        string to specify using the default tablespace of the current database.
-        If the value does not match the name of any existing tablespace,
-        <productname>PostgreSQL</> will automatically use the default
-        tablespace of the current database.
-       </para>
-
-       <para>
-        For more information on tablespaces,
-        see <xref linkend="manage-ag-tablespaces">.
-       </para>
-      </listitem>
-     </varlistentry>
-
      <varlistentry id="guc-check-function-bodies" xreflabel="check_function_bodies">
       <term><varname>check_function_bodies</varname> (<type>boolean</type>)</term>
       <indexterm>

src/backend/commands/indexcmds.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/indexcmds.c,v 1.155 2007/02/01 19:10:26 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/indexcmds.c,v 1.156 2007/03/06 02:06:12 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -209,13 +209,7 @@ DefineIndex(RangeVar *heapRelation,
 	}
 	else
 	{
- 		/*
- 		 * if the target table is temporary then use a temp_tablespace
- 		 */
- 		if (!rel->rd_istemp)
 		tablespaceId = GetDefaultTablespace();
- 		else
- 			tablespaceId = GetTempTablespace();
 		/* note InvalidOid is OK in this case */
 	}
 

src/backend/commands/tablecmds.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.215 2007/02/16 22:04:02 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.216 2007/03/06 02:06:13 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -330,10 +330,6 @@ DefineRelation(CreateStmt *stmt, char relkind)
 					 errmsg("tablespace \"%s\" does not exist",
 							stmt->tablespacename)));
 	}
-	else if (stmt->relation->istemp)
-	{
-		tablespaceId = GetTempTablespace();
-	}
 	else
 	{
 		tablespaceId = GetDefaultTablespace();

src/backend/commands/tablespace.c

@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/tablespace.c,v 1.42 2007/02/01 19:10:26 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/tablespace.c,v 1.43 2007/03/06 02:06:13 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -65,12 +65,9 @@
 #include "utils/lsyscache.h"
 
 
-/* GUC variables */
+/* GUC variable */
 char	   *default_tablespace = NULL;
-char       *temp_tablespaces = NULL;
 
-int	   next_temp_tablespace;
-int	   num_temp_tablespaces;
 
 static bool remove_tablespace_directories(Oid tablespaceoid, bool redo);
 static void set_short_version(const char *path);
@@ -933,142 +930,6 @@ GetDefaultTablespace(void)
 	return result;
 }
 
-/*
- * Routines for handling the GUC variable 'temp_tablespaces'.
- */
-
-/* assign_hook: validate new temp_tablespaces, do extra actions as needed */
-const char *
-assign_temp_tablespaces(const char *newval, bool doit, GucSource source)
-{
-	char	   *rawname;
-	List	   *namelist;
-	ListCell   *l;
-
-	/* Need a modifiable copy of string */
-	rawname = pstrdup(newval);
-
-	/* Parse string into list of identifiers */
-	if (!SplitIdentifierString(rawname, ',', &namelist))
-	{
-		/* syntax error in name list */
-		pfree(rawname);
-		list_free(namelist);
-		return NULL;
-	}
-
-	num_temp_tablespaces = 0;
-	foreach(l, namelist)
-	{
-		char	   *curname = (char *) lfirst(l);
-
-		/*
-		 * If we aren't inside a transaction, we cannot do database access so
-		 * cannot verify the individual names.	Must accept the list on faith.
-		 */
-		if (source >= PGC_S_INTERACTIVE && IsTransactionState())
-		{
-			/*
-			 * Verify that all the names are valid tablspace names 
-			 * We do not check for USAGE rights should we?
-			 */
-			if (get_tablespace_oid(curname) == InvalidOid)
-				ereport((source == PGC_S_TEST) ? NOTICE : ERROR,
-						(errcode(ERRCODE_UNDEFINED_OBJECT),
-						errmsg("tablespace \"%s\" does not exist", curname)));
-		}
-		num_temp_tablespaces++;
-	}
-
-	/*
-	 * Select the first tablespace to use
-	 */
-	next_temp_tablespace = MyProcPid % num_temp_tablespaces;
-
-	pfree(rawname);
-	list_free(namelist);
-	return newval;
-}
-
-/*
- * GetTempTablespace -- get the OID of the tablespace for temporary objects
- *
- * May return InvalidOid to indicate "use the database's default tablespace"
- *
- * This exists to hide the temp_tablespace GUC variable.
- */
-Oid
-GetTempTablespace(void)
-{
-	Oid			result;
-	char *curname = NULL;
-	char *rawname;
-	List *namelist;
-	ListCell *l;
-	int i = 0;
-	
-	if ( temp_tablespaces == NULL )
-		return InvalidOid;
-
-	/* Need a modifiable version of temp_tablespaces */
-	rawname = pstrdup(temp_tablespaces);
-
-	/* Parse string into list of identifiers */
-	if (!SplitIdentifierString(rawname, ',', &namelist))
-	{
-		/* syntax error in name list */
-		pfree(rawname);
-		list_free(namelist);
-		return InvalidOid;
-	}
-
-	/* 
-	 * Iterate through the list of namespaces until the one we need 
-	 * (next_temp_tablespace) 
-	 */
-	foreach(l, namelist)
-	{
-		curname = (char *) lfirst(l);
-		if ( i == next_temp_tablespace )
-			break;
-		i++;
-	}
-
-
-	/* Prepare for the next time the function is called */
-	next_temp_tablespace++;
-	if (next_temp_tablespace == num_temp_tablespaces)
-		next_temp_tablespace = 0;
-
-	/* Fast path for temp_tablespaces == "" */
-	if ( curname == NULL || curname[0] == '\0') {
-		list_free(namelist);
-		pfree(rawname);
-		return InvalidOid;
-	}
-
-	/*
-	 * It is tempting to cache this lookup for more speed, but then we would
-	 * fail to detect the case where the tablespace was dropped since the GUC
-	 * variable was set.  Note also that we don't complain if the value fails
-	 * to refer to an existing tablespace; we just silently return InvalidOid,
-	 * causing the new object to be created in the database's tablespace.
-	 */
-	result = get_tablespace_oid(curname);
-
-	/* We don't free rawname before because curname points to a part of it */
-	pfree(rawname);
-
-	/*
-	 * Allow explicit specification of database's default tablespace in
-	 * default_tablespace without triggering permissions checks.
-	 */
-	if (result == MyDatabaseTableSpace)
-		result = InvalidOid;
-	
-	list_free(namelist);
-	return result;
-}
 
 /*
  * get_tablespace_oid - given a tablespace name, look up the OID

src/backend/executor/execMain.c

@@ -26,7 +26,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/executor/execMain.c,v 1.289 2007/02/27 01:11:25 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/executor/execMain.c,v 1.290 2007/03/06 02:06:13 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2440,10 +2440,6 @@ OpenIntoRel(QueryDesc *queryDesc)
 					 errmsg("tablespace \"%s\" does not exist",
 							into->tableSpaceName)));
 	}
-	else if (into->rel->istemp)
-	{
-		tablespaceId = GetTempTablespace();
-	}
 	else
 	{
 		tablespaceId = GetDefaultTablespace();

src/backend/storage/file/fd.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.136 2007/02/28 15:59:30 mha Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.137 2007/03/06 02:06:14 momjian Exp $
  *
  * NOTES:
  *
@@ -46,8 +46,6 @@
 #include <unistd.h>
 #include <fcntl.h>
 
-#include "commands/tablespace.h"
-
 #include "miscadmin.h"
 #include "access/xact.h"
 #include "storage/fd.h"
@@ -78,7 +76,6 @@
  */
 #define FD_MINFREE				10
 
-#define OIDCHARS        10                      /* max chars printed by %u */
 
 /*
  * A number of platforms allow individual processes to open many more files
@@ -883,51 +880,13 @@ OpenTemporaryFile(bool interXact)
 {
 	char		tempfilepath[MAXPGPATH];
 	File		file;
-	Oid		oid;
-	char		*path;
-	int		pathlen;
-
-	/*
-	 * Take a look what should be the path of the temporary file
-	 */
-	oid = GetTempTablespace();
-	if (oid != InvalidOid)
-	{
-		/*
-		 * As we got a valid tablespace, try to create the
-		 * file there
-		 */
-
-		pathlen = strlen("pg_tblspc/") + OIDCHARS + 1;
-		path = (char *) palloc(pathlen);
-		snprintf(path, pathlen, "pg_tblspc/%u", oid );
-
-		/*
-		 * Generate a tempfile name that should be unique within the current
-		 * database instance.
-		 */
-		snprintf(tempfilepath, sizeof(tempfilepath),
-				 "%s/%s%d.%ld", path, PG_TEMP_FILE_PREFIX,
-				 MyProcPid, tempFileCounter++);
-		pfree(path);
-		file = PathNameOpenFile(tempfilepath,
-							O_RDWR | O_CREAT | O_TRUNC | PG_BINARY,
-							0600);
-	}
 
-	/*
-	 * Create a normal temporary file if no tablespace returned or
-	 * couldn't create the file in the tablespace "oid"
-	 */
-	if (oid == InvalidOid || file <= 0) 
-	{
-		path = PG_TEMP_FILES_DIR;
 	/*
 	 * Generate a tempfile name that should be unique within the current
 	 * database instance.
 	 */
 	snprintf(tempfilepath, sizeof(tempfilepath),
-				 "%s/%s%d.%ld", path, PG_TEMP_FILE_PREFIX,
+			 "%s/%s%d.%ld", PG_TEMP_FILES_DIR, PG_TEMP_FILE_PREFIX,
 			 MyProcPid, tempFileCounter++);
 
 	/*
@@ -960,7 +919,6 @@ OpenTemporaryFile(bool interXact)
 			elog(ERROR, "could not create temporary file \"%s\": %m",
 				 tempfilepath);
 	}
- 	}
 
 	/* Mark it for deletion at close */
 	VfdCache[file].fdstate |= FD_TEMPORARY;

src/backend/utils/misc/guc.c

@@ -10,7 +10,7 @@
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.378 2007/03/03 18:46:40 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.379 2007/03/06 02:06:14 momjian Exp $
  *
  *--------------------------------------------------------------------
  */
@@ -99,7 +99,6 @@ extern bool Log_disconnections;
 extern int	CommitDelay;
 extern int	CommitSiblings;
 extern char *default_tablespace;
-extern char *temp_tablespaces;
 extern bool fullPageWrites;
 
 #ifdef TRACE_SORT
@@ -2317,16 +2316,6 @@ static struct config_string ConfigureNamesString[] =
 		"content", assign_xmloption, NULL
 	},
 
-	{
-		{"temp_tablespaces", PGC_USERSET, PGC_S_FILE,
-			gettext_noop("Sets the tablespaces suitable for creating new objects and sort files."),
-			NULL,
-			GUC_LIST_INPUT | GUC_LIST_QUOTE 
-		},
-		&temp_tablespaces,
-		NULL, assign_temp_tablespaces, NULL
-	},
-
 #ifdef USE_SSL
 	{
 		{"ssl_ciphers", PGC_POSTMASTER, CONN_AUTH_SECURITY,

src/backend/utils/misc/postgresql.conf.sample

@@ -404,8 +404,6 @@
 #search_path = '"$user",public'		# schema names
 #default_tablespace = ''		# a tablespace name, '' uses
 					# the default
-#temp_tablespaces = ''			# a list of tablespace names,
-					# '' uses default_tablespace
 #check_function_bodies = on
 #default_transaction_isolation = 'read committed'
 #default_transaction_read_only = off

src/include/commands/tablespace.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/commands/tablespace.h,v 1.15 2007/01/25 04:35:11 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/commands/tablespace.h,v 1.16 2007/03/06 02:06:15 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -41,7 +41,6 @@ extern void AlterTableSpaceOwner(const char *name, Oid newOwnerId);
 extern void TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool isRedo);
 
 extern Oid	GetDefaultTablespace(void);
-extern Oid	GetTempTablespace(void);
 
 extern Oid	get_tablespace_oid(const char *tablespacename);
 extern char *get_tablespace_name(Oid spc_oid);

src/include/utils/guc.h

@@ -7,7 +7,7 @@
  * Copyright (c) 2000-2007, PostgreSQL Global Development Group
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
- * $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.79 2007/01/25 04:35:11 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.80 2007/03/06 02:06:15 momjian Exp $
  *--------------------------------------------------------------------
  */
 #ifndef GUC_H
@@ -238,8 +238,4 @@ extern const char *assign_search_path(const char *newval,
 extern const char *assign_xlog_sync_method(const char *method,
 						bool doit, GucSource source);
 
-/* in commands/tablespace.c */
-extern const char *assign_temp_tablespaces(const char *newval,
-						  bool doit, GucSource source);
-
 #endif   /* GUC_H */