From 6eb9c5a5657d1fe77b55cc261450f3538d35a94d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 14:19:15 +0200
Subject: Adding upstream version 13.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/include/utils/datum.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 src/include/utils/datum.h

(limited to 'src/include/utils/datum.h')

diff --git a/src/include/utils/datum.h b/src/include/utils/datum.h
new file mode 100644
index 0000000..9118a93
--- /dev/null
+++ b/src/include/utils/datum.h
@@ -0,0 +1,68 @@
+/*-------------------------------------------------------------------------
+ *
+ * datum.h
+ *	  POSTGRES Datum (abstract data type) manipulation routines.
+ *
+ * These routines are driven by the 'typbyval' and 'typlen' information,
+ * which must previously have been obtained by the caller for the datatype
+ * of the Datum.  (We do it this way because in most situations the caller
+ * can look up the info just once and use it for many per-datum operations.)
+ *
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/utils/datum.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef DATUM_H
+#define DATUM_H
+
+/*
+ * datumGetSize - find the "real" length of a datum
+ */
+extern Size datumGetSize(Datum value, bool typByVal, int typLen);
+
+/*
+ * datumCopy - make a copy of a non-NULL datum.
+ *
+ * If the datatype is pass-by-reference, memory is obtained with palloc().
+ */
+extern Datum datumCopy(Datum value, bool typByVal, int typLen);
+
+/*
+ * datumTransfer - transfer a non-NULL datum into the current memory context.
+ *
+ * Differs from datumCopy() in its handling of read-write expanded objects.
+ */
+extern Datum datumTransfer(Datum value, bool typByVal, int typLen);
+
+/*
+ * datumIsEqual
+ * return true if two datums of the same type are equal, false otherwise.
+ *
+ * XXX : See comments in the code for restrictions!
+ */
+extern bool datumIsEqual(Datum value1, Datum value2,
+						 bool typByVal, int typLen);
+
+/*
+ * datum_image_eq
+ *
+ * Compares two datums for identical contents, based on byte images.  Return
+ * true if the two datums are equal, false otherwise.
+ */
+extern bool datum_image_eq(Datum value1, Datum value2,
+						   bool typByVal, int typLen);
+
+/*
+ * Serialize and restore datums so that we can transfer them to parallel
+ * workers.
+ */
+extern Size datumEstimateSpace(Datum value, bool isnull, bool typByVal,
+							   int typLen);
+extern void datumSerialize(Datum value, bool isnull, bool typByVal,
+						   int typLen, char **start_address);
+extern Datum datumRestore(char **start_address, bool *isnull);
+
+#endif							/* DATUM_H */
-- 
cgit v1.2.3