1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*-------------------------------------------------------------------------
*
* 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 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 */
|
