Added empty TOASTER files and corrected some minor glitches

in regression tests.

Jan

4 files changed, 124 insertions, 4 deletions

diff --git a/src/include/access/htup.h b/src/include/access/htup.h
index c81dcfd6a8..862ce86e22 100644
--- a/src/include/access/htup.h
+++ b/src/include/access/htup.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: htup.h,v 1.26 1999/12/16 22:19:58 wieck Exp $
+ * $Id: htup.h,v 1.27 1999/12/21 00:06:42 wieck Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -125,6 +125,11 @@ typedef HeapTupleData *HeapTuple;
 #define HEAP_HASNULL			0x0001	/* has null attribute(s) */
 #define HEAP_HASVARLENA			0x0002	/* has variable length
 										 * attribute(s) */
+#define HEAP_HASEXTERNAL		0x0004	/* has external stored */
+										/* attribute(s) */
+#define HEAP_HASCOMPRESSED		0x0008	/* has compressed stored */
+										/* attribute(s) */
+#define HEAP_HASEXTENDED		0x000C	/* the two above combined */
 #define HEAP_XMIN_COMMITTED		0x0100	/* t_xmin committed */
 #define HEAP_XMIN_INVALID		0x0200	/* t_xmin invalid/aborted */
 #define HEAP_XMAX_COMMITTED		0x0400	/* t_xmax committed */
@@ -144,4 +149,13 @@ typedef HeapTupleData *HeapTuple;
 #define HeapTupleAllFixed(tuple) \
 		(!(((HeapTuple) (tuple))->t_data->t_infomask & HEAP_HASVARLENA))
 
+#define HeapTupleHasExternal(tuple) \
+		((((HeapTuple)(tuple))->t_data->t_infomask & HEAP_HASEXTERNAL) != 0)
+
+#define HeapTupleHasCompressed(tuple) \
+		((((HeapTuple)(tuple))->t_data->t_infomask & HEAP_HASCOMPRESSED) != 0)
+
+#define HeapTupleHasExtended(tuple) \
+		((((HeapTuple)(tuple))->t_data->t_infomask & HEAP_HASEXTENDED) != 0)
+
 #endif	 /* HTUP_H */
diff --git a/src/include/access/tupmacs.h b/src/include/access/tupmacs.h
index baaf4bd0ac..177b68c5ec 100644
--- a/src/include/access/tupmacs.h
+++ b/src/include/access/tupmacs.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: tupmacs.h,v 1.11 1999/07/15 15:20:56 momjian Exp $
+ * $Id: tupmacs.h,v 1.12 1999/12/21 00:06:42 wieck Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -88,7 +88,7 @@
 	) \
 	: \
 	( \
-		(cur_offset) + VARSIZE(DatumGetPointer(attval)) \
+		(cur_offset) + VARATT_SIZE(DatumGetPointer(attval)) \
 	) \
 )
 
diff --git a/src/include/access/tuptoaster.h b/src/include/access/tuptoaster.h
new file mode 100644
index 0000000000..dedc770db2
--- /dev/null
+++ b/src/include/access/tuptoaster.h
@@ -0,0 +1,33 @@
+/*-------------------------------------------------------------------------
+ *
+ * tuptoaster.h
+ *	  POSTGRES definitions for external and compressed storage
+ *    of variable size attributes.
+ *
+ * Copyright (c) 2000, PostgreSQL Development Team
+ *
+ * $Id: tuptoaster.h,v 1.1 1999/12/21 00:06:42 wieck Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef TUPTOASTER_H
+#define TUPTOASTER_H
+
+#ifdef TUPLE_TOASTER_ACTIVE
+
+#include "postgres.h"
+#include "access/heapam.h"
+#include "access/htup.h"
+#include "access/tupmacs.h"
+#include "utils/rel.h"
+
+
+extern void heap_tuple_toast_attrs(Relation rel, 
+				HeapTuple newtup, HeapTuple oldtup);
+
+extern varattrib *heap_tuple_untoast_attr(varattrib *attr);
+
+#endif /* TUPLE_TOASTER_ACTIVE */
+
+
+#endif	 /* TUPTOASTER_H */
diff --git a/src/include/postgres.h b/src/include/postgres.h
index 396c3c262b..e03922ceda 100644
--- a/src/include/postgres.h
+++ b/src/include/postgres.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1995, Regents of the University of California
  *
- * $Id: postgres.h,v 1.30 1999/11/07 23:08:32 momjian Exp $
+ * $Id: postgres.h,v 1.31 1999/12/21 00:06:41 wieck Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -104,6 +104,79 @@ typedef struct varlena text;
 typedef int2 int28[8];
 typedef Oid oid8[8];
 
+
+/*
+ * Proposed new layout for variable length attributes
+ * DO NOT USE YET - Jan
+ */
+#undef TUPLE_TOASTER_ACTIVE
+#undef TUPLE_TOASTER_ALL_TYPES
+
+#ifdef TUPLE_TOASTER_ACTIVE
+typedef struct varattrib
+{
+	int32				va_header;			/* External/compressed storage */
+											/* flags and item size */
+	union
+	{
+		struct
+		{
+			int32		va_rawsize;			/* Plain data size */
+		}				va_compressed;		/* Compressed stored attribute */
+
+		struct
+		{
+			int32		va_rawsize;			/* Plain data size */
+			Oid			va_valueid;			/* Unique identifier of value */
+			Oid			va_longrelid;		/* RelID where to find chunks */
+			Oid			va_rowid;			/* Main tables row Oid */
+			int16		va_attno;			/* Main tables attno */
+		}				va_external;		/* External stored attribute */
+
+		char			va_data[1];			/* Plain stored attribute */
+	}					va_content;
+} varattrib;
+
+#define VARATT_FLAG_EXTERNAL	0x8000
+#define VARATT_FLAG_COMPRESSED	0x4000
+#define VARATT_MASK_FLAGS		0xc000
+#define VARATT_MASK_SIZE		0x3fff
+
+#define VARATT_SIZEP(_PTR)	(((varattrib *)(_PTR))->va_header)
+#define VARATT_SIZE(PTR)	(VARATT_SIZEP(PTR) & VARATT_MASK_SIZE) 
+#define VARATT_DATA(PTR)	(((varattrib *)(PTR))->va_content.va_data)
+
+#define VARATT_IS_EXTENDED(PTR)		\
+				((VARATT_SIZEP(PTR) & VARATT_MASK_FLAGS) != 0)
+#define VARATT_IS_EXTERNAL(PTR)		\
+				((VARATT_SIZEP(PTR) & VARATT_FLAG_EXTERNAL) != 0)
+#define VARATT_IS_COMPRESSED(PTR)	\
+				((VARATT_SIZEP(PTR) & VARATT_FLAG_COMPRESSED) != 0)
+
+/* ----------
+ * This is regularly declared in access/tuptoaster.h,
+ * but we don't want to include that into every source,
+ * so we (evil evil evil) declare it here once more.
+ * ----------
+ */
+extern varattrib *heap_tuple_untoast_attr(varattrib *attr);
+
+#define VARATT_GETPLAIN(_ARG,_VAR) {								\
+				if (VARATTR_IS_EXTENDED(_ARG))						\
+					(_VAR) = (void *)heap_tuple_untoast_attr(_ARG);	\
+				else												\
+					(_VAR) = (_ARG);								\
+			}
+#define VARATT_FREE(_ARG,VAR) {										\
+				if ((void *)(_VAR) != (void *)(_ARG))				\
+					pfree((void *)(_VAR));							\
+			}
+#else /* TUPLE_TOASTER_ACTIVE */
+#define VARATT_SIZE(__PTR) VARSIZE(__PTR)
+#define VARATT_SIZEP(__PTR) VARSIZE(__PTR)
+#endif /* TUPLE_TOASTER_ACTIVE */
+
+
 /* We want NameData to have length NAMEDATALEN and int alignment,
  * because that's how the data type 'name' is defined in pg_type.
  * Use a union to make sure the compiler agrees.