1 files changed, 44 insertions, 0 deletions
diff --git a/src/include/access/gin_tuple.h b/src/include/access/gin_tuple.h
new file mode 100644
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+++ b/src/include/access/gin_tuple.h
@@ -0,0 +1,44 @@
+/*--------------------------------------------------------------------------
+ * gin.h
+ *	  Public header file for Generalized Inverted Index access method.
+ *
+ *	Copyright (c) 2006-2024, PostgreSQL Global Development Group
+ *
+ *	src/include/access/gin.h
+ *--------------------------------------------------------------------------
+ */
+#ifndef GIN_TUPLE_
+#define GIN_TUPLE_
+
+#include "access/ginblock.h"
+#include "storage/itemptr.h"
+#include "utils/sortsupport.h"
+
+/*
+ * Data for one key in a GIN index.
+ */
+typedef struct GinTuple
+{
+	int			tuplen;			/* length of the whole tuple */
+	OffsetNumber attrnum;		/* attnum of index key */
+	uint16		keylen;			/* bytes in data for key value */
+	int16		typlen;			/* typlen for key */
+	bool		typbyval;		/* typbyval for key */
+	signed char category;		/* category: normal or NULL? */
+	int			nitems;			/* number of TIDs in the data */
+	char		data[FLEXIBLE_ARRAY_MEMBER];
+} GinTuple;
+
+static inline ItemPointer
+GinTupleGetFirst(GinTuple *tup)
+{
+	GinPostingList *list;
+
+	list = (GinPostingList *) SHORTALIGN(tup->data + tup->keylen);
+
+	return &list->first;
+}
+
+extern int	_gin_compare_tuples(GinTuple *a, GinTuple *b, SortSupport ssup);
+
+#endif							/* GIN_TUPLE_H */