granicus.if.org Git - postgresql/blob - contrib/btree_gist/btree_gist.c

   1 /*
   2  * contrib/btree_gist/btree_gist.c
   3  */
   4 #include "btree_gist.h"
   5
   6 PG_MODULE_MAGIC;
   7
   8 PG_FUNCTION_INFO_V1(gbt_decompress);
   9 PG_FUNCTION_INFO_V1(gbtreekey_in);
  10 PG_FUNCTION_INFO_V1(gbtreekey_out);
  11
  12 Datum           gbt_decompress(PG_FUNCTION_ARGS);
  13
  14 /**************************************************
  15  * In/Out for keys
  16  **************************************************/
  17
  18
  19 Datum
  20 gbtreekey_in(PG_FUNCTION_ARGS)
  21 {
  22         ereport(ERROR,
  23                         (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
  24                          errmsg("<datatype>key_in() not implemented")));
  25
  26         PG_RETURN_POINTER(NULL);
  27 }
  28
  29 #include "btree_utils_var.h"
  30 #include "utils/builtins.h"
  31 Datum
  32 gbtreekey_out(PG_FUNCTION_ARGS)
  33 {
  34         ereport(ERROR,
  35                         (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
  36                          errmsg("<datatype>key_out() not implemented")));
  37         PG_RETURN_POINTER(NULL);
  38 }
  39
  40
  41 /*
  42 ** GiST DeCompress methods
  43 ** do not do anything.
  44 */
  45 Datum
  46 gbt_decompress(PG_FUNCTION_ARGS)
  47 {
  48         PG_RETURN_POINTER(PG_GETARG_POINTER(0));
  49 }