1 /*-------------------------------------------------------------------------
4 * prototypes for functions in backend/catalog/namespace.c
7 * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * src/include/catalog/namespace.h
12 *-------------------------------------------------------------------------
17 #include "nodes/primnodes.h"
21 * This structure holds a list of possible functions or operators
22 * found by namespace lookup. Each function/operator is identified
23 * by OID and by argument types; the list must be pruned by type
24 * resolution rules that are embodied in the parser, not here.
25 * See FuncnameGetCandidates's comments for more info.
27 typedef struct _FuncCandidateList
29 struct _FuncCandidateList *next;
30 int pathpos; /* for internal use of namespace lookup */
31 Oid oid; /* the function or operator's OID */
32 int nargs; /* number of arg types returned */
33 int nvargs; /* number of args to become variadic array */
34 int ndargs; /* number of defaulted args */
35 int *argnumbers; /* args' positional indexes, if named call */
36 Oid args[1]; /* arg types --- VARIABLE LENGTH ARRAY */
37 } *FuncCandidateList; /* VARIABLE LENGTH STRUCT */
40 * Structure for xxxOverrideSearchPath functions
42 typedef struct OverrideSearchPath
44 List *schemas; /* OIDs of explicitly named schemas */
45 bool addCatalog; /* implicitly prepend pg_catalog? */
46 bool addTemp; /* implicitly prepend temp schema? */
50 extern Oid RangeVarGetRelid(const RangeVar *relation, bool failOK);
51 extern Oid RangeVarGetCreationNamespace(const RangeVar *newRelation);
52 extern Oid RangeVarGetAndCheckCreationNamespace(const RangeVar *newRelation);
53 extern Oid RelnameGetRelid(const char *relname);
54 extern bool RelationIsVisible(Oid relid);
56 extern Oid TypenameGetTypid(const char *typname);
57 extern bool TypeIsVisible(Oid typid);
59 extern FuncCandidateList FuncnameGetCandidates(List *names,
60 int nargs, List *argnames,
62 bool expand_defaults);
63 extern bool FunctionIsVisible(Oid funcid);
65 extern Oid OpernameGetOprid(List *names, Oid oprleft, Oid oprright);
66 extern FuncCandidateList OpernameGetCandidates(List *names, char oprkind);
67 extern bool OperatorIsVisible(Oid oprid);
69 extern Oid OpclassnameGetOpcid(Oid amid, const char *opcname);
70 extern bool OpclassIsVisible(Oid opcid);
72 extern Oid OpfamilynameGetOpfid(Oid amid, const char *opfname);
73 extern bool OpfamilyIsVisible(Oid opfid);
75 extern Oid CollationGetCollid(const char *collname);
76 extern bool CollationIsVisible(Oid collid);
78 extern Oid ConversionGetConid(const char *conname);
79 extern bool ConversionIsVisible(Oid conid);
81 extern Oid get_ts_parser_oid(List *names, bool missing_ok);
82 extern bool TSParserIsVisible(Oid prsId);
84 extern Oid get_ts_dict_oid(List *names, bool missing_ok);
85 extern bool TSDictionaryIsVisible(Oid dictId);
87 extern Oid get_ts_template_oid(List *names, bool missing_ok);
88 extern bool TSTemplateIsVisible(Oid tmplId);
90 extern Oid get_ts_config_oid(List *names, bool missing_ok);
91 extern bool TSConfigIsVisible(Oid cfgid);
93 extern void DeconstructQualifiedName(List *names,
96 extern Oid LookupNamespaceNoError(const char *nspname);
97 extern Oid LookupExplicitNamespace(const char *nspname);
98 extern Oid get_namespace_oid(const char *nspname, bool missing_ok);
100 extern Oid LookupCreationNamespace(const char *nspname);
101 extern void CheckSetNamespace(Oid oldNspOid, Oid nspOid, Oid classid,
103 extern Oid QualifiedNameGetCreationNamespace(List *names, char **objname_p);
104 extern RangeVar *makeRangeVarFromNameList(List *names);
105 extern char *NameListToString(List *names);
106 extern char *NameListToQuotedString(List *names);
108 extern bool isTempNamespace(Oid namespaceId);
109 extern bool isTempToastNamespace(Oid namespaceId);
110 extern bool isTempOrToastNamespace(Oid namespaceId);
111 extern bool isAnyTempNamespace(Oid namespaceId);
112 extern bool isOtherTempNamespace(Oid namespaceId);
113 extern int GetTempNamespaceBackendId(Oid namespaceId);
114 extern Oid GetTempToastNamespace(void);
115 extern void ResetTempTableNamespace(void);
117 extern OverrideSearchPath *GetOverrideSearchPath(MemoryContext context);
118 extern void PushOverrideSearchPath(OverrideSearchPath *newpath);
119 extern void PopOverrideSearchPath(void);
121 extern Oid get_collation_oid(List *collname, bool missing_ok);
122 extern Oid get_conversion_oid(List *conname, bool missing_ok);
123 extern Oid FindDefaultConversionProc(int4 for_encoding, int4 to_encoding);
125 /* initialization & transaction cleanup code */
126 extern void InitializeSearchPath(void);
127 extern void AtEOXact_Namespace(bool isCommit);
128 extern void AtEOSubXact_Namespace(bool isCommit, SubTransactionId mySubid,
129 SubTransactionId parentSubid);
131 /* stuff for search_path GUC variable */
132 extern char *namespace_search_path;
134 extern List *fetch_search_path(bool includeImplicit);
135 extern int fetch_search_path_array(Oid *sarray, int sarray_len);
137 #endif /* NAMESPACE_H */