1 files changed, 28 insertions, 0 deletions
diff --git a/src/include/utils/attoptcache.h b/src/include/utils/attoptcache.h
new file mode 100644
index 0000000..ee37af9
--- /dev/null
+++ b/src/include/utils/attoptcache.h
@@ -0,0 +1,28 @@
+/*-------------------------------------------------------------------------
+ *
+ * attoptcache.h
+ *	  Attribute options cache.
+ *
+ * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/utils/attoptcache.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef ATTOPTCACHE_H
+#define ATTOPTCACHE_H
+
+/*
+ * Attribute options.
+ */
+typedef struct AttributeOpts
+{
+	int32		vl_len_;		/* varlena header (do not touch directly!) */
+	float8		n_distinct;
+	float8		n_distinct_inherited;
+} AttributeOpts;
+
+extern AttributeOpts *get_attribute_options(Oid spcid, int attnum);
+
+#endif							/* ATTOPTCACHE_H */