New version. Add support for int2, int8, float4, float8, timestamp with/without time zone, time with/without time zone, date, interval, oid, money and macaddr, char, varchar/text, bytea, numeric, bit, varbit, inet/cidr types for GiST

contrib/btree_gist/btree_utils_num.h

@@ -0,0 +1,62 @@
+
+typedef char GBT_NUMKEY;
+
+/* Better readable key */
+typedef struct
+{
+  const GBT_NUMKEY * lower, * upper;
+} GBT_NUMKEY_R;
+
+
+/* for sorting */
+typedef struct
+{
+  int          i;
+  GBT_NUMKEY * t;
+} Nsrt;
+
+
+/* type description */
+
+typedef struct
+{
+
+  /* Attribs */
+
+  enum gbtree_type t       ;  /* data type */
+  int32            size    ;  /* size of type , 0 means variable */
+
+  /* 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 */
+  int          (*f_cmp)        ( const void * , const void * );    /* key compare function */
+} gbtree_ninfo;
+
+
+/*
+ *  Numeric btree functions
+*/
+
+extern bool            gbt_num_consistent( const GBT_NUMKEY_R * key , const void * query,
+                                const StrategyNumber * strategy , bool is_leaf,
+                                const gbtree_ninfo * tinfo );
+
+extern GIST_SPLITVEC  *gbt_num_picksplit ( const GistEntryVector *entryvec, GIST_SPLITVEC *v,
+                                const gbtree_ninfo * tinfo );
+
+extern GISTENTRY      *gbt_num_compress( GISTENTRY  *retval , GISTENTRY  *entry ,
+                                const gbtree_ninfo * tinfo );
+
+
+extern void           *gbt_num_union ( GBT_NUMKEY * out, const GistEntryVector * entryvec,
+                                const gbtree_ninfo * tinfo );
+
+extern bool            gbt_num_same ( const GBT_NUMKEY * a, const GBT_NUMKEY * b,
+                                const gbtree_ninfo * tinfo );
+
+extern void            gbt_num_bin_union(Datum * u , GBT_NUMKEY * e ,
+                                const gbtree_ninfo * tinfo );