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/*------------------------------------------------------------------------- * * namespace.h * prototypes for functions in backend/catalog/namespace.c * * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/catalog/namespace.h * *------------------------------------------------------------------------- */ #ifndef NAMESPACE_H #define NAMESPACE_H #include "nodes/primnodes.h" #include "storage/lock.h" /* * This structure holds a list of possible functions or operators * found by namespace lookup. Each function/operator is identified * by OID and by argument types; the list must be pruned by type * resolution rules that are embodied in the parser, not here. * See FuncnameGetCandidates's comments for more info. */ typedef struct _FuncCandidateList { struct _FuncCandidateList *next; int pathpos; /* for internal use of namespace lookup */ Oid oid; /* the function or operator's OID */ int nargs; /* number of arg types returned */ int nvargs; /* number of args to become variadic array */ int ndargs; /* number of defaulted args */ int *argnumbers; /* args' positional indexes, if named call */ Oid args[1]; /* arg types --- VARIABLE LENGTH ARRAY */ } *FuncCandidateList; /* VARIABLE LENGTH STRUCT */ /* * Structure for xxxOverrideSearchPath functions */ typedef struct OverrideSearchPath { List *schemas; /* OIDs of explicitly named schemas */ bool addCatalog; /* implicitly prepend pg_catalog? */ bool addTemp; /* implicitly prepend temp schema? */ } OverrideSearchPath; typedef void (*RangeVarGetRelidCallback) (const RangeVar *relation, Oid relId, Oid oldRelId, void *callback_arg); #define RangeVarGetRelid(relation, lockmode, missing_ok) \ RangeVarGetRelidExtended(relation, lockmode, missing_ok, false, NULL, NULL) extern Oid RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode, bool missing_ok, bool nowait, RangeVarGetRelidCallback callback, void *callback_arg); extern Oid RangeVarGetCreationNamespace(const RangeVar *newRelation); extern Oid RangeVarGetAndCheckCreationNamespace(RangeVar *newRelation, LOCKMODE lockmode, Oid *existing_relation_id); extern void RangeVarAdjustRelationPersistence(RangeVar *newRelation, Oid nspid); extern Oid RelnameGetRelid(const char *relname); extern bool RelationIsVisible(Oid relid); extern Oid TypenameGetTypid(const char *typname); extern Oid TypenameGetTypidExtended(const char *typname, bool temp_ok); extern bool TypeIsVisible(Oid typid); extern FuncCandidateList FuncnameGetCandidates(List *names, int nargs, List *argnames, bool expand_variadic, bool expand_defaults); extern bool FunctionIsVisible(Oid funcid); extern Oid OpernameGetOprid(List *names, Oid oprleft, Oid oprright); extern FuncCandidateList OpernameGetCandidates(List *names, char oprkind); extern bool OperatorIsVisible(Oid oprid); extern Oid OpclassnameGetOpcid(Oid amid, const char *opcname); extern bool OpclassIsVisible(Oid opcid); extern Oid OpfamilynameGetOpfid(Oid amid, const char *opfname); extern bool OpfamilyIsVisible(Oid opfid); extern Oid CollationGetCollid(const char *collname); extern bool CollationIsVisible(Oid collid); extern Oid ConversionGetConid(const char *conname); extern bool ConversionIsVisible(Oid conid); extern Oid get_ts_parser_oid(List *names, bool missing_ok); extern bool TSParserIsVisible(Oid prsId); extern Oid get_ts_dict_oid(List *names, bool missing_ok); extern bool TSDictionaryIsVisible(Oid dictId); extern Oid get_ts_template_oid(List *names, bool missing_ok); extern bool TSTemplateIsVisible(Oid tmplId); extern Oid get_ts_config_oid(List *names, bool missing_ok); extern bool TSConfigIsVisible(Oid cfgid); extern void DeconstructQualifiedName(List *names, char **nspname_p, char **objname_p); extern Oid LookupNamespaceNoError(const char *nspname); extern Oid LookupExplicitNamespace(const char *nspname); extern Oid get_namespace_oid(const char *nspname, bool missing_ok); extern Oid LookupCreationNamespace(const char *nspname); extern void CheckSetNamespace(Oid oldNspOid, Oid nspOid, Oid classid, Oid objid); extern Oid QualifiedNameGetCreationNamespace(List *names, char **objname_p); extern RangeVar *makeRangeVarFromNameList(List *names); extern char *NameListToString(List *names); extern char *NameListToQuotedString(List *names); extern bool isTempNamespace(Oid namespaceId); extern bool isTempToastNamespace(Oid namespaceId); extern bool isTempOrToastNamespace(Oid namespaceId); extern bool isAnyTempNamespace(Oid namespaceId); extern bool isOtherTempNamespace(Oid namespaceId); extern int GetTempNamespaceBackendId(Oid namespaceId); extern Oid GetTempToastNamespace(void); extern void ResetTempTableNamespace(void); extern OverrideSearchPath *GetOverrideSearchPath(MemoryContext context); extern OverrideSearchPath *CopyOverrideSearchPath(OverrideSearchPath *path); extern void PushOverrideSearchPath(OverrideSearchPath *newpath); extern void PopOverrideSearchPath(void); extern Oid get_collation_oid(List *collname, bool missing_ok); extern Oid get_conversion_oid(List *conname, bool missing_ok); extern Oid FindDefaultConversionProc(int4 for_encoding, int4 to_encoding); /* initialization & transaction cleanup code */ extern void InitializeSearchPath(void); extern void AtEOXact_Namespace(bool isCommit); extern void AtEOSubXact_Namespace(bool isCommit, SubTransactionId mySubid, SubTransactionId parentSubid); /* stuff for search_path GUC variable */ extern char *namespace_search_path; extern List *fetch_search_path(bool includeImplicit); extern int fetch_search_path_array(Oid *sarray, int sarray_len); #endif /* NAMESPACE_H */