Portal and memory management infrastructure for extended query protocol.

Both plannable queries and utility commands are now always executed
within Portals, which have been revamped so that they can handle the
load (they used to be good only for single SELECT queries).  Restructure
code to push command-completion-tag selection logic out of postgres.c,
so that it won't have to be duplicated between simple and extended queries.
initdb forced due to addition of a field to Query nodes.

4 files changed, 8 insertions, 4 deletions

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index cbf61970d47..4c773657fe4 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -15,7 +15,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.248 2003/04/08 23:20:01 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.249 2003/05/02 20:54:34 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1476,6 +1476,7 @@ _copyQuery(Query *from)
 
 	COPY_SCALAR_FIELD(commandType);
 	COPY_SCALAR_FIELD(querySource);
+	COPY_SCALAR_FIELD(canSetTag);
 	COPY_NODE_FIELD(utilityStmt);
 	COPY_SCALAR_FIELD(resultRelation);
 	COPY_NODE_FIELD(into);
diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c
index 31e53197116..e4c10ed9686 100644
--- a/src/backend/nodes/equalfuncs.c
+++ b/src/backend/nodes/equalfuncs.c
@@ -18,7 +18,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.191 2003/04/08 23:20:01 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.192 2003/05/02 20:54:34 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -566,6 +566,7 @@ _equalQuery(Query *a, Query *b)
 {
 	COMPARE_SCALAR_FIELD(commandType);
 	COMPARE_SCALAR_FIELD(querySource);
+	COMPARE_SCALAR_FIELD(canSetTag);
 	COMPARE_NODE_FIELD(utilityStmt);
 	COMPARE_SCALAR_FIELD(resultRelation);
 	COMPARE_NODE_FIELD(into);
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c
index 45c7a2a301b..654905b0962 100644
--- a/src/backend/nodes/outfuncs.c
+++ b/src/backend/nodes/outfuncs.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.203 2003/04/24 21:16:43 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.204 2003/05/02 20:54:34 tgl Exp $
  *
  * NOTES
  *	  Every node type that can appear in stored rules' parsetrees *must*
@@ -1177,6 +1177,7 @@ _outQuery(StringInfo str, Query *node)
 
 	WRITE_ENUM_FIELD(commandType, CmdType);
 	WRITE_ENUM_FIELD(querySource, QuerySource);
+	WRITE_BOOL_FIELD(canSetTag);
 
 	/*
 	 * Hack to work around missing outfuncs routines for a lot of the
diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c
index 4f75942169b..3c8e7501f43 100644
--- a/src/backend/nodes/readfuncs.c
+++ b/src/backend/nodes/readfuncs.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.151 2003/04/08 23:20:01 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.152 2003/05/02 20:54:34 tgl Exp $
  *
  * NOTES
  *	  Path and Plan nodes do not have any readfuncs support, because we
@@ -195,6 +195,7 @@ _readQuery(void)
 
 	READ_ENUM_FIELD(commandType, CmdType);
 	READ_ENUM_FIELD(querySource, QuerySource);
+	READ_BOOL_FIELD(canSetTag);
 	READ_NODE_FIELD(utilityStmt);
 	READ_INT_FIELD(resultRelation);
 	READ_NODE_FIELD(into);