1 files changed, 72 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_utils_var.h b/contrib/btree_gist/btree_utils_var.h
new file mode 100644
index 0000000..2f8def6
--- /dev/null
+++ b/contrib/btree_gist/btree_utils_var.h
@@ -0,0 +1,72 @@
+/*
+ * contrib/btree_gist/btree_utils_var.h
+ */
+#ifndef __BTREE_UTILS_VAR_H__
+#define __BTREE_UTILS_VAR_H__
+
+#include "access/gist.h"
+#include "btree_gist.h"
+#include "mb/pg_wchar.h"
+
+/* Variable length key */
+typedef bytea GBT_VARKEY;
+
+/* Better readable key */
+typedef struct
+{
+	bytea	   *lower,
+			   *upper;
+} GBT_VARKEY_R;
+
+/*
+ * type description
+ */
+typedef struct
+{
+
+	/* Attribs */
+
+	enum gbtree_type t;			/* data type */
+	int32		eml;			/* cached pg_database_encoding_max_length (0:
+								 * undefined) */
+	bool		trnc;			/* truncate (=compress) key */
+
+	/* Methods */
+
+	bool		(*f_gt) (const void *, const void *, Oid, FmgrInfo *);	/* greater than */
+	bool		(*f_ge) (const void *, const void *, Oid, FmgrInfo *);	/* greater equal */
+	bool		(*f_eq) (const void *, const void *, Oid, FmgrInfo *);	/* equal */
+	bool		(*f_le) (const void *, const void *, Oid, FmgrInfo *);	/* less equal */
+	bool		(*f_lt) (const void *, const void *, Oid, FmgrInfo *);	/* less than */
+	int32		(*f_cmp) (const void *, const void *, Oid, FmgrInfo *); /* compare */
+	GBT_VARKEY *(*f_l2n) (GBT_VARKEY *, FmgrInfo *flinfo);	/* convert leaf to node */
+} gbtree_vinfo;
+
+
+
+extern GBT_VARKEY_R gbt_var_key_readable(const GBT_VARKEY *k);
+
+extern GBT_VARKEY *gbt_var_key_copy(const GBT_VARKEY_R *u);
+
+extern GISTENTRY *gbt_var_compress(GISTENTRY *entry, const gbtree_vinfo *tinfo);
+
+extern GBT_VARKEY *gbt_var_union(const GistEntryVector *entryvec, int32 *size,
+								 Oid collation, const gbtree_vinfo *tinfo, FmgrInfo *flinfo);
+
+extern bool gbt_var_same(Datum d1, Datum d2, Oid collation,
+						 const gbtree_vinfo *tinfo, FmgrInfo *flinfo);
+
+extern float *gbt_var_penalty(float *res, const GISTENTRY *o, const GISTENTRY *n,
+							  Oid collation, const gbtree_vinfo *tinfo, FmgrInfo *flinfo);
+
+extern bool gbt_var_consistent(GBT_VARKEY_R *key, const void *query,
+							   StrategyNumber strategy, Oid collation, bool is_leaf,
+							   const gbtree_vinfo *tinfo, FmgrInfo *flinfo);
+
+extern GIST_SPLITVEC *gbt_var_picksplit(const GistEntryVector *entryvec, GIST_SPLITVEC *v,
+										Oid collation, const gbtree_vinfo *tinfo, FmgrInfo *flinfo);
+
+extern void gbt_var_bin_union(Datum *u, GBT_VARKEY *e, Oid collation,
+							  const gbtree_vinfo *tinfo, FmgrInfo *flinfo);
+
+#endif