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-rw-r--r--src/include/executor/executor.h3
-rw-r--r--src/include/nodes/execnodes.h12
-rw-r--r--src/include/utils/memutils.h12
3 files changed, 12 insertions, 15 deletions
diff --git a/src/include/executor/executor.h b/src/include/executor/executor.h
index 571f35c64e3..31cc2107536 100644
--- a/src/include/executor/executor.h
+++ b/src/include/executor/executor.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: executor.h,v 1.84 2002/12/15 16:17:54 tgl Exp $
+ * $Id: executor.h,v 1.85 2002/12/15 21:01:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -41,7 +41,6 @@ extern bool ExecSupportsMarkRestore(NodeTag plantype);
*/
extern JunkFilter *ExecInitJunkFilter(List *targetList, TupleDesc tupType,
TupleTableSlot *slot);
-extern void ExecFreeJunkFilter(JunkFilter *junkfilter);
extern bool ExecGetJunkAttribute(JunkFilter *junkfilter, TupleTableSlot *slot,
char *attrName, Datum *value, bool *isNull);
extern HeapTuple ExecRemoveJunk(JunkFilter *junkfilter, TupleTableSlot *slot);
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h
index 65c5f23884d..b57d7ac58cc 100644
--- a/src/include/nodes/execnodes.h
+++ b/src/include/nodes/execnodes.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: execnodes.h,v 1.86 2002/12/15 16:17:56 tgl Exp $
+ * $Id: execnodes.h,v 1.87 2002/12/15 21:01:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -218,16 +218,7 @@ typedef struct ProjectionInfo
* cleanMap: A map with the correspondence between the non-junk
* attribute numbers of the "original" tuple and the
* attribute numbers of the "clean" tuple.
- * junkContext: memory context holding the JunkFilter node and all
- * its subsidiary data structures.
* resultSlot: tuple slot that can be used to hold cleaned tuple.
- *
- * NOTE: the original targetList and tupType are passed to ExecInitJunkFilter,
- * as is the resultSlot. These items do not belong to the JunkFilter. All
- * the other subsidiary structures are created during ExecInitJunkFilter,
- * and all of them can be freed by deleting the memory context junkContext.
- * This would not be needed if we had a cleaner approach to managing
- * query-lifetime data structures...
* ----------------
*/
typedef struct JunkFilter
@@ -240,7 +231,6 @@ typedef struct JunkFilter
int jf_cleanLength;
TupleDesc jf_cleanTupType;
AttrNumber *jf_cleanMap;
- MemoryContext jf_junkContext;
TupleTableSlot *jf_resultSlot;
} JunkFilter;
diff --git a/src/include/utils/memutils.h b/src/include/utils/memutils.h
index 8529f948227..94578b8fb6f 100644
--- a/src/include/utils/memutils.h
+++ b/src/include/utils/memutils.h
@@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: memutils.h,v 1.48 2002/09/04 20:31:45 momjian Exp $
+ * $Id: memutils.h,v 1.49 2002/12/15 21:01:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -116,8 +116,16 @@ extern MemoryContext AllocSetContextCreate(MemoryContext parent,
* Recommended default alloc parameters, suitable for "ordinary" contexts
* that might hold quite a lot of data.
*/
-#define ALLOCSET_DEFAULT_MINSIZE (8 * 1024)
+#define ALLOCSET_DEFAULT_MINSIZE 0
#define ALLOCSET_DEFAULT_INITSIZE (8 * 1024)
#define ALLOCSET_DEFAULT_MAXSIZE (8 * 1024 * 1024)
+/*
+ * Recommended alloc parameters for "small" contexts that are not expected
+ * to contain much data (for example, a context to contain a query plan).
+ */
+#define ALLOCSET_SMALL_MINSIZE 0
+#define ALLOCSET_SMALL_INITSIZE (1 * 1024)
+#define ALLOCSET_SMALL_MAXSIZE (8 * 1024)
+
#endif /* MEMUTILS_H */