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 1.112 2007/01/10 18:06:05 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_compare_function_for_ordering_op(Oid opno,
41 Oid *cmpfunc, bool *reverse);
42 extern Oid get_equality_op_for_ordering_op(Oid opno);
43 extern Oid get_ordering_op_for_equality_op(Oid opno, bool use_lhs_type);
44 extern Oid get_compatible_hash_operator(Oid opno, bool use_lhs_type);
45 extern Oid get_op_hash_function(Oid opno);
46 extern void get_op_btree_interpretation(Oid opno,
47 List **opfamilies, List **opstrats);
48 extern bool ops_in_same_btree_opfamily(Oid opno1, Oid opno2);
49 extern Oid get_opfamily_proc(Oid opfamily, Oid lefttype, Oid righttype,
51 extern char *get_attname(Oid relid, AttrNumber attnum);
52 extern char *get_relid_attribute_name(Oid relid, AttrNumber attnum);
53 extern AttrNumber get_attnum(Oid relid, const char *attname);
54 extern Oid get_atttype(Oid relid, AttrNumber attnum);
55 extern int32 get_atttypmod(Oid relid, AttrNumber attnum);
56 extern void get_atttypetypmod(Oid relid, AttrNumber attnum,
57 Oid *typid, int32 *typmod);
58 extern Oid get_opclass_family(Oid opclass);
59 extern Oid get_opclass_input_type(Oid opclass);
60 extern RegProcedure get_opcode(Oid opno);
61 extern char *get_opname(Oid opno);
62 extern void op_input_types(Oid opno, Oid *lefttype, Oid *righttype);
63 extern bool op_mergejoinable(Oid opno);
64 extern bool op_hashjoinable(Oid opno);
65 extern bool op_strict(Oid opno);
66 extern char op_volatile(Oid opno);
67 extern Oid get_commutator(Oid opno);
68 extern Oid get_negator(Oid opno);
69 extern RegProcedure get_oprrest(Oid opno);
70 extern RegProcedure get_oprjoin(Oid opno);
71 extern char *get_func_name(Oid funcid);
72 extern Oid get_func_rettype(Oid funcid);
73 extern int get_func_nargs(Oid funcid);
74 extern Oid get_func_signature(Oid funcid, Oid **argtypes, int *nargs);
75 extern bool get_func_retset(Oid funcid);
76 extern bool func_strict(Oid funcid);
77 extern char func_volatile(Oid funcid);
78 extern Oid get_relname_relid(const char *relname, Oid relnamespace);
79 extern char *get_rel_name(Oid relid);
80 extern Oid get_rel_namespace(Oid relid);
81 extern Oid get_rel_type_id(Oid relid);
82 extern char get_rel_relkind(Oid relid);
83 extern bool get_typisdefined(Oid typid);
84 extern int16 get_typlen(Oid typid);
85 extern bool get_typbyval(Oid typid);
86 extern void get_typlenbyval(Oid typid, int16 *typlen, bool *typbyval);
87 extern void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval,
89 extern Oid getTypeIOParam(HeapTuple typeTuple);
90 extern void get_type_io_data(Oid typid,
91 IOFuncSelector which_func,
98 extern char get_typstorage(Oid typid);
99 extern Node *get_typdefault(Oid typid);
100 extern char get_typtype(Oid typid);
101 extern bool type_is_rowtype(Oid typid);
102 extern Oid get_typ_typrelid(Oid typid);
103 extern Oid get_element_type(Oid typid);
104 extern Oid get_array_type(Oid typid);
105 extern void getTypeInputInfo(Oid type, Oid *typInput, Oid *typIOParam);
106 extern void getTypeOutputInfo(Oid type, Oid *typOutput, bool *typIsVarlena);
107 extern void getTypeBinaryInputInfo(Oid type, Oid *typReceive, Oid *typIOParam);
108 extern void getTypeBinaryOutputInfo(Oid type, Oid *typSend, bool *typIsVarlena);
109 extern Oid get_typmodin(Oid typid);
110 extern Oid getBaseType(Oid typid);
111 extern Oid getBaseTypeAndTypmod(Oid typid, int32 *typmod);
112 extern int32 get_typavgwidth(Oid typid, int32 typmod);
113 extern int32 get_attavgwidth(Oid relid, AttrNumber attnum);
114 extern bool get_attstatsslot(HeapTuple statstuple,
115 Oid atttype, int32 atttypmod,
116 int reqkind, Oid reqop,
117 Datum **values, int *nvalues,
118 float4 **numbers, int *nnumbers);
119 extern void free_attstatsslot(Oid atttype,
120 Datum *values, int nvalues,
121 float4 *numbers, int nnumbers);
122 extern char *get_namespace_name(Oid nspid);
123 extern Oid get_roleid(const char *rolname);
124 extern Oid get_roleid_checked(const char *rolname);
126 #define is_array_type(typid) (get_element_type(typid) != InvalidOid)
128 #define TypeIsToastable(typid) (get_typstorage(typid) != 'p')
130 #endif /* LSYSCACHE_H */