Change the name of the Result Cache node to Memoize

"Result Cache" was never a great name for this node, but nobody managed
to come up with another name that anyone liked enough.  That was until
David Johnston mentioned "Node Memoization", which Tom Lane revised to
just "Memoize".  People seem to like "Memoize", so let's do the rename.

Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 14, where Result Cache was introduced

1 files changed, 32 insertions, 0 deletions

diff --git a/src/include/executor/nodeMemoize.h b/src/include/executor/nodeMemoize.h
new file mode 100644
index 00000000000..898fa438163
--- /dev/null
+++ b/src/include/executor/nodeMemoize.h
@@ -0,0 +1,32 @@
+/*-------------------------------------------------------------------------
+ *
+ * nodeMemoize.h
+ *
+ *
+ *
+ * Portions Copyright (c) 2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/executor/nodeMemoize.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef NODEMEMOIZE_H
+#define NODEMEMOIZE_H
+
+#include "access/parallel.h"
+#include "nodes/execnodes.h"
+
+extern MemoizeState *ExecInitMemoize(Memoize *node, EState *estate, int eflags);
+extern void ExecEndMemoize(MemoizeState *node);
+extern void ExecReScanMemoize(MemoizeState *node);
+extern double ExecEstimateCacheEntryOverheadBytes(double ntuples);
+extern void ExecMemoizeEstimate(MemoizeState *node,
+								ParallelContext *pcxt);
+extern void ExecMemoizeInitializeDSM(MemoizeState *node,
+									 ParallelContext *pcxt);
+extern void ExecMemoizeInitializeWorker(MemoizeState *node,
+										ParallelWorkerContext *pwcxt);
+extern void ExecMemoizeRetrieveInstrumentation(MemoizeState *node);
+
+#endif							/* NODEMEMOIZE_H */