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/*-------------------------------------------------------------------------
*
* namespace.h
* prototypes for functions in backend/catalog/namespace.c
*
*
* Portions Copyright (c) 1996-2013, 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 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(int32 for_encoding, int32 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 */
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