1 files changed, 67 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 00000000000..086891b158f
--- /dev/null
+++ b/contrib/btree_gist/btree_utils_var.h
@@ -0,0 +1,67 @@
+
+/* Variable length key */
+typedef bytea GBT_VARKEY;
+
+/* Better readable key */
+typedef struct
+{
+  bytea * lower, * upper;
+} GBT_VARKEY_R;
+
+/* used for key sorting */
+typedef struct
+{
+  int          i ;
+  GBT_VARKEY * t ;
+} Vsrt ;
+
+/*
+  type description
+*/
+
+
+typedef struct
+{
+
+  /* Attribs */
+
+  enum gbtree_type t       ;  /* data type */
+  bool             str     ;  /* true, if string ( else binary ) */
+  bool             trnc    ;  /* truncate (=compress) key */
+
+  /* Methods */
+
+  bool         (*f_gt)         ( const   void * , const   void * );    /* greater then */
+  bool         (*f_ge)         ( const   void * , const   void * );    /* greater equal */
+  bool         (*f_eq)         ( const   void * , const   void * );    /* equal */
+  bool         (*f_le)         ( const   void * , const   void * );    /* less equal */
+  bool         (*f_lt)         ( const   void * , const   void * );    /* less then */
+  int32        (*f_cmp)        ( const  bytea * , const  bytea * );    /* node compare */
+  GBT_VARKEY*  (*f_l2n)        ( GBT_VARKEY * );                       /* 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, bool force_node );
+
+extern GISTENTRY        *gbt_var_compress ( GISTENTRY *entry , const gbtree_vinfo * tinfo );
+
+extern GBT_VARKEY       *gbt_var_union ( const GistEntryVector * entryvec , int32  * size ,
+                                const gbtree_vinfo * tinfo );
+
+extern bool              gbt_var_same ( bool * result, const Datum d1 , const Datum d2 ,
+                                const gbtree_vinfo * tinfo );
+
+extern float            *gbt_var_penalty ( float * res , const GISTENTRY * o , const GISTENTRY * n,
+                                const gbtree_vinfo * tinfo );
+
+extern bool              gbt_var_consistent( GBT_VARKEY_R * key , const void * query,
+                                const StrategyNumber * strategy , bool is_leaf,
+                                const gbtree_vinfo * tinfo );
+
+extern GIST_SPLITVEC    *gbt_var_picksplit ( const GistEntryVector *entryvec, GIST_SPLITVEC *v,
+                                const gbtree_vinfo * tinfo );
+extern void              gbt_var_bin_union ( Datum * u , GBT_VARKEY * e ,
+                                const gbtree_vinfo * tinfo );