Eneboo - Documentación para desarrolladores
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00001 /*------------------------------------------------------------------------- 00002 * 00003 * lsyscache.h 00004 * Convenience routines for common queries in the system catalog cache. 00005 * 00006 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group 00007 * Portions Copyright (c) 1994, Regents of the University of California 00008 * 00009 * $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.101 2005/10/15 02:49:46 momjian Exp $ 00010 * 00011 *------------------------------------------------------------------------- 00012 */ 00013 #ifndef LSYSCACHE_H 00014 #define LSYSCACHE_H 00015 00016 #include "access/htup.h" 00017 00018 /* I/O function selector for get_type_io_data */ 00019 typedef enum IOFuncSelector 00020 { 00021 IOFunc_input, 00022 IOFunc_output, 00023 IOFunc_receive, 00024 IOFunc_send 00025 } IOFuncSelector; 00026 00027 extern bool op_in_opclass(Oid opno, Oid opclass); 00028 extern int get_op_opclass_strategy(Oid opno, Oid opclass); 00029 extern void get_op_opclass_properties(Oid opno, Oid opclass, 00030 int *strategy, Oid *subtype, 00031 bool *recheck); 00032 extern Oid get_opclass_member(Oid opclass, Oid subtype, int16 strategy); 00033 extern Oid get_op_hash_function(Oid opno); 00034 extern Oid get_opclass_proc(Oid opclass, Oid subtype, int16 procnum); 00035 extern char *get_attname(Oid relid, AttrNumber attnum); 00036 extern char *get_relid_attribute_name(Oid relid, AttrNumber attnum); 00037 extern AttrNumber get_attnum(Oid relid, const char *attname); 00038 extern Oid get_atttype(Oid relid, AttrNumber attnum); 00039 extern int32 get_atttypmod(Oid relid, AttrNumber attnum); 00040 extern void get_atttypetypmod(Oid relid, AttrNumber attnum, 00041 Oid *typid, int32 *typmod); 00042 extern bool opclass_is_btree(Oid opclass); 00043 extern bool opclass_is_hash(Oid opclass); 00044 extern RegProcedure get_opcode(Oid opno); 00045 extern char *get_opname(Oid opno); 00046 extern void op_input_types(Oid opno, Oid *lefttype, Oid *righttype); 00047 extern bool op_mergejoinable(Oid opno, Oid *leftOp, Oid *rightOp); 00048 extern void op_mergejoin_crossops(Oid opno, Oid *ltop, Oid *gtop, 00049 RegProcedure *ltproc, RegProcedure *gtproc); 00050 extern bool op_hashjoinable(Oid opno); 00051 extern bool op_strict(Oid opno); 00052 extern char op_volatile(Oid opno); 00053 extern Oid get_commutator(Oid opno); 00054 extern Oid get_negator(Oid opno); 00055 extern RegProcedure get_oprrest(Oid opno); 00056 extern RegProcedure get_oprjoin(Oid opno); 00057 extern char *get_func_name(Oid funcid); 00058 extern Oid get_func_rettype(Oid funcid); 00059 extern int get_func_nargs(Oid funcid); 00060 extern Oid get_func_signature(Oid funcid, Oid **argtypes, int *nargs); 00061 extern bool get_func_retset(Oid funcid); 00062 extern bool func_strict(Oid funcid); 00063 extern char func_volatile(Oid funcid); 00064 extern Oid get_relname_relid(const char *relname, Oid relnamespace); 00065 extern char *get_rel_name(Oid relid); 00066 extern Oid get_rel_namespace(Oid relid); 00067 extern Oid get_rel_type_id(Oid relid); 00068 extern char get_rel_relkind(Oid relid); 00069 extern bool get_typisdefined(Oid typid); 00070 extern int16 get_typlen(Oid typid); 00071 extern bool get_typbyval(Oid typid); 00072 extern void get_typlenbyval(Oid typid, int16 *typlen, bool *typbyval); 00073 extern void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval, 00074 char *typalign); 00075 extern Oid getTypeIOParam(HeapTuple typeTuple); 00076 extern void get_type_io_data(Oid typid, 00077 IOFuncSelector which_func, 00078 int16 *typlen, 00079 bool *typbyval, 00080 char *typalign, 00081 char *typdelim, 00082 Oid *typioparam, 00083 Oid *func); 00084 extern char get_typstorage(Oid typid); 00085 extern int32 get_typtypmod(Oid typid); 00086 extern Node *get_typdefault(Oid typid); 00087 extern char get_typtype(Oid typid); 00088 extern Oid get_typ_typrelid(Oid typid); 00089 extern Oid get_element_type(Oid typid); 00090 extern Oid get_array_type(Oid typid); 00091 extern void getTypeInputInfo(Oid type, Oid *typInput, Oid *typIOParam); 00092 extern void getTypeOutputInfo(Oid type, Oid *typOutput, bool *typIsVarlena); 00093 extern void getTypeBinaryInputInfo(Oid type, Oid *typReceive, Oid *typIOParam); 00094 extern void getTypeBinaryOutputInfo(Oid type, Oid *typSend, bool *typIsVarlena); 00095 extern Oid getBaseType(Oid typid); 00096 extern int32 get_typavgwidth(Oid typid, int32 typmod); 00097 extern int32 get_attavgwidth(Oid relid, AttrNumber attnum); 00098 extern bool get_attstatsslot(HeapTuple statstuple, 00099 Oid atttype, int32 atttypmod, 00100 int reqkind, Oid reqop, 00101 Datum **values, int *nvalues, 00102 float4 **numbers, int *nnumbers); 00103 extern void free_attstatsslot(Oid atttype, 00104 Datum *values, int nvalues, 00105 float4 *numbers, int nnumbers); 00106 extern char *get_namespace_name(Oid nspid); 00107 extern Oid get_roleid(const char *rolname); 00108 extern Oid get_roleid_checked(const char *rolname); 00109 00110 #define is_array_type(typid) (get_element_type(typid) != InvalidOid) 00111 00112 #define TypeIsToastable(typid) (get_typstorage(typid) != 'p') 00113 00114 #endif /* LSYSCACHE_H */