1 /*
2  * contrib/btree_gist/btree_gist.c
3  */
4 #include "postgres.h"
5 
6 #include "btree_gist.h"
7 
8 PG_MODULE_MAGIC;
9 
10 PG_FUNCTION_INFO_V1(gbt_decompress);
11 PG_FUNCTION_INFO_V1(gbtreekey_in);
12 PG_FUNCTION_INFO_V1(gbtreekey_out);
13 
14 /**************************************************
15  * In/Out for keys
16  **************************************************/
17 
18 
19 Datum
gbtreekey_in(PG_FUNCTION_ARGS)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
gbtreekey_out(PG_FUNCTION_ARGS)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
gbt_decompress(PG_FUNCTION_ARGS)46 gbt_decompress(PG_FUNCTION_ARGS)
47 {
48 	PG_RETURN_POINTER(PG_GETARG_POINTER(0));
49 }
50