init
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blue-lemon0104
150
pg_include/catalog/namespace.h
Executable file
150
pg_include/catalog/namespace.h
Executable file
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/*-------------------------------------------------------------------------
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*
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* namespace.h
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* prototypes for functions in backend/catalog/namespace.c
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*
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/catalog/namespace.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NAMESPACE_H
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#define NAMESPACE_H
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#include "nodes/primnodes.h"
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#include "storage/lock.h"
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/*
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* This structure holds a list of possible functions or operators
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* found by namespace lookup. Each function/operator is identified
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* by OID and by argument types; the list must be pruned by type
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* resolution rules that are embodied in the parser, not here.
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* See FuncnameGetCandidates's comments for more info.
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*/
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typedef struct _FuncCandidateList
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{
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struct _FuncCandidateList *next;
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int pathpos; /* for internal use of namespace lookup */
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Oid oid; /* the function or operator's OID */
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int nargs; /* number of arg types returned */
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int nvargs; /* number of args to become variadic array */
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int ndargs; /* number of defaulted args */
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int *argnumbers; /* args' positional indexes, if named call */
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Oid args[1]; /* arg types --- VARIABLE LENGTH ARRAY */
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} *FuncCandidateList; /* VARIABLE LENGTH STRUCT */
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/*
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* Structure for xxxOverrideSearchPath functions
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*/
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typedef struct OverrideSearchPath
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{
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List *schemas; /* OIDs of explicitly named schemas */
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bool addCatalog; /* implicitly prepend pg_catalog? */
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bool addTemp; /* implicitly prepend temp schema? */
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} OverrideSearchPath;
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typedef void (*RangeVarGetRelidCallback) (const RangeVar *relation, Oid relId,
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Oid oldRelId, void *callback_arg);
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#define RangeVarGetRelid(relation, lockmode, missing_ok) \
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RangeVarGetRelidExtended(relation, lockmode, missing_ok, false, NULL, NULL)
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extern Oid RangeVarGetRelidExtended(const RangeVar *relation,
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LOCKMODE lockmode, bool missing_ok, bool nowait,
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RangeVarGetRelidCallback callback,
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void *callback_arg);
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extern Oid RangeVarGetCreationNamespace(const RangeVar *newRelation);
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extern Oid RangeVarGetAndCheckCreationNamespace(RangeVar *newRelation,
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LOCKMODE lockmode,
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Oid *existing_relation_id);
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extern void RangeVarAdjustRelationPersistence(RangeVar *newRelation, Oid nspid);
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extern Oid RelnameGetRelid(const char *relname);
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extern bool RelationIsVisible(Oid relid);
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extern Oid TypenameGetTypid(const char *typname);
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extern bool TypeIsVisible(Oid typid);
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extern FuncCandidateList FuncnameGetCandidates(List *names,
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int nargs, List *argnames,
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bool expand_variadic,
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bool expand_defaults);
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extern bool FunctionIsVisible(Oid funcid);
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extern Oid OpernameGetOprid(List *names, Oid oprleft, Oid oprright);
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extern FuncCandidateList OpernameGetCandidates(List *names, char oprkind);
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extern bool OperatorIsVisible(Oid oprid);
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extern Oid OpclassnameGetOpcid(Oid amid, const char *opcname);
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extern bool OpclassIsVisible(Oid opcid);
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extern Oid OpfamilynameGetOpfid(Oid amid, const char *opfname);
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extern bool OpfamilyIsVisible(Oid opfid);
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extern Oid CollationGetCollid(const char *collname);
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extern bool CollationIsVisible(Oid collid);
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extern Oid ConversionGetConid(const char *conname);
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extern bool ConversionIsVisible(Oid conid);
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extern Oid get_ts_parser_oid(List *names, bool missing_ok);
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extern bool TSParserIsVisible(Oid prsId);
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extern Oid get_ts_dict_oid(List *names, bool missing_ok);
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extern bool TSDictionaryIsVisible(Oid dictId);
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extern Oid get_ts_template_oid(List *names, bool missing_ok);
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extern bool TSTemplateIsVisible(Oid tmplId);
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extern Oid get_ts_config_oid(List *names, bool missing_ok);
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extern bool TSConfigIsVisible(Oid cfgid);
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extern void DeconstructQualifiedName(List *names,
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char **nspname_p,
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char **objname_p);
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extern Oid LookupNamespaceNoError(const char *nspname);
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extern Oid LookupExplicitNamespace(const char *nspname);
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extern Oid get_namespace_oid(const char *nspname, bool missing_ok);
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extern Oid LookupCreationNamespace(const char *nspname);
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extern void CheckSetNamespace(Oid oldNspOid, Oid nspOid, Oid classid,
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Oid objid);
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extern Oid QualifiedNameGetCreationNamespace(List *names, char **objname_p);
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extern RangeVar *makeRangeVarFromNameList(List *names);
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extern char *NameListToString(List *names);
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extern char *NameListToQuotedString(List *names);
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extern bool isTempNamespace(Oid namespaceId);
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extern bool isTempToastNamespace(Oid namespaceId);
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extern bool isTempOrToastNamespace(Oid namespaceId);
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extern bool isAnyTempNamespace(Oid namespaceId);
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extern bool isOtherTempNamespace(Oid namespaceId);
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extern int GetTempNamespaceBackendId(Oid namespaceId);
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extern Oid GetTempToastNamespace(void);
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extern void ResetTempTableNamespace(void);
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extern OverrideSearchPath *GetOverrideSearchPath(MemoryContext context);
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extern OverrideSearchPath *CopyOverrideSearchPath(OverrideSearchPath *path);
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extern void PushOverrideSearchPath(OverrideSearchPath *newpath);
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extern void PopOverrideSearchPath(void);
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extern Oid get_collation_oid(List *collname, bool missing_ok);
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extern Oid get_conversion_oid(List *conname, bool missing_ok);
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extern Oid FindDefaultConversionProc(int4 for_encoding, int4 to_encoding);
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/* initialization & transaction cleanup code */
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extern void InitializeSearchPath(void);
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extern void AtEOXact_Namespace(bool isCommit);
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extern void AtEOSubXact_Namespace(bool isCommit, SubTransactionId mySubid,
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SubTransactionId parentSubid);
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/* stuff for search_path GUC variable */
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extern char *namespace_search_path;
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extern List *fetch_search_path(bool includeImplicit);
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extern int fetch_search_path_array(Oid *sarray, int sarray_len);
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#endif /* NAMESPACE_H */
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