1 /*-------------------------------------------------------------------------
4 * Convenience routines for common queries in the system catalog cache.
6 * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
7 * Portions Copyright (c) 1994, Regents of the University of California
9 * $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.111 2007/01/09 02:14:16 tgl Exp $
11 *-------------------------------------------------------------------------
16 #include "access/attnum.h"
17 #include "access/htup.h"
18 #include "nodes/pg_list.h"
20 /* I/O function selector for get_type_io_data */
21 typedef enum IOFuncSelector
29 extern bool op_in_opfamily(Oid opno, Oid opfamily);
30 extern int get_op_opfamily_strategy(Oid opno, Oid opfamily);
31 extern void get_op_opfamily_properties(Oid opno, Oid opfamily,
36 extern Oid get_opfamily_member(Oid opfamily, Oid lefttype, Oid righttype,
38 extern bool get_op_mergejoin_info(Oid eq_op, Oid *left_sortop,
39 Oid *right_sortop, Oid *opfamily);
40 extern bool get_op_compare_function(Oid opno, Oid *cmpfunc, bool *reverse);
41 extern Oid get_op_hash_function(Oid opno);
42 extern void get_op_btree_interpretation(Oid opno,
43 List **opfamilies, List **opstrats);
44 extern Oid get_opfamily_proc(Oid opfamily, Oid lefttype, Oid righttype,
46 extern char *get_attname(Oid relid, AttrNumber attnum);
47 extern char *get_relid_attribute_name(Oid relid, AttrNumber attnum);
48 extern AttrNumber get_attnum(Oid relid, const char *attname);
49 extern Oid get_atttype(Oid relid, AttrNumber attnum);
50 extern int32 get_atttypmod(Oid relid, AttrNumber attnum);
51 extern void get_atttypetypmod(Oid relid, AttrNumber attnum,
52 Oid *typid, int32 *typmod);
53 extern Oid get_opclass_family(Oid opclass);
54 extern Oid get_opclass_input_type(Oid opclass);
55 extern RegProcedure get_opcode(Oid opno);
56 extern char *get_opname(Oid opno);
57 extern void op_input_types(Oid opno, Oid *lefttype, Oid *righttype);
58 extern bool op_mergejoinable(Oid opno);
59 extern bool op_hashjoinable(Oid opno);
60 extern bool op_strict(Oid opno);
61 extern char op_volatile(Oid opno);
62 extern Oid get_commutator(Oid opno);
63 extern Oid get_negator(Oid opno);
64 extern RegProcedure get_oprrest(Oid opno);
65 extern RegProcedure get_oprjoin(Oid opno);
66 extern char *get_func_name(Oid funcid);
67 extern Oid get_func_rettype(Oid funcid);
68 extern int get_func_nargs(Oid funcid);
69 extern Oid get_func_signature(Oid funcid, Oid **argtypes, int *nargs);
70 extern bool get_func_retset(Oid funcid);
71 extern bool func_strict(Oid funcid);
72 extern char func_volatile(Oid funcid);
73 extern Oid get_relname_relid(const char *relname, Oid relnamespace);
74 extern char *get_rel_name(Oid relid);
75 extern Oid get_rel_namespace(Oid relid);
76 extern Oid get_rel_type_id(Oid relid);
77 extern char get_rel_relkind(Oid relid);
78 extern bool get_typisdefined(Oid typid);
79 extern int16 get_typlen(Oid typid);
80 extern bool get_typbyval(Oid typid);
81 extern void get_typlenbyval(Oid typid, int16 *typlen, bool *typbyval);
82 extern void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval,
84 extern Oid getTypeIOParam(HeapTuple typeTuple);
85 extern void get_type_io_data(Oid typid,
86 IOFuncSelector which_func,
93 extern char get_typstorage(Oid typid);
94 extern Node *get_typdefault(Oid typid);
95 extern char get_typtype(Oid typid);
96 extern bool type_is_rowtype(Oid typid);
97 extern Oid get_typ_typrelid(Oid typid);
98 extern Oid get_element_type(Oid typid);
99 extern Oid get_array_type(Oid typid);
100 extern void getTypeInputInfo(Oid type, Oid *typInput, Oid *typIOParam);
101 extern void getTypeOutputInfo(Oid type, Oid *typOutput, bool *typIsVarlena);
102 extern void getTypeBinaryInputInfo(Oid type, Oid *typReceive, Oid *typIOParam);
103 extern void getTypeBinaryOutputInfo(Oid type, Oid *typSend, bool *typIsVarlena);
104 extern Oid get_typmodin(Oid typid);
105 extern Oid getBaseType(Oid typid);
106 extern Oid getBaseTypeAndTypmod(Oid typid, int32 *typmod);
107 extern int32 get_typavgwidth(Oid typid, int32 typmod);
108 extern int32 get_attavgwidth(Oid relid, AttrNumber attnum);
109 extern bool get_attstatsslot(HeapTuple statstuple,
110 Oid atttype, int32 atttypmod,
111 int reqkind, Oid reqop,
112 Datum **values, int *nvalues,
113 float4 **numbers, int *nnumbers);
114 extern void free_attstatsslot(Oid atttype,
115 Datum *values, int nvalues,
116 float4 *numbers, int nnumbers);
117 extern char *get_namespace_name(Oid nspid);
118 extern Oid get_roleid(const char *rolname);
119 extern Oid get_roleid_checked(const char *rolname);
121 #define is_array_type(typid) (get_element_type(typid) != InvalidOid)
123 #define TypeIsToastable(typid) (get_typstorage(typid) != 'p')
125 #endif /* LSYSCACHE_H */