PostgreSQL Source Code  git master
pg_upgrade_support.c
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1 /*
2  * pg_upgrade_support.c
3  *
4  * server-side functions to set backend global variables
5  * to control oid and relfilenode assignment, and do other special
6  * hacks needed for pg_upgrade.
7  *
8  * Copyright (c) 2010-2017, PostgreSQL Global Development Group
9  * src/backend/utils/adt/pg_upgrade_support.c
10  */
11 
12 #include "postgres.h"
13 
14 #include "catalog/binary_upgrade.h"
15 #include "catalog/namespace.h"
16 #include "catalog/pg_type.h"
17 #include "commands/extension.h"
18 #include "miscadmin.h"
19 #include "utils/array.h"
20 #include "utils/builtins.h"
21 
22 
23 #define CHECK_IS_BINARY_UPGRADE \
24 do { \
25  if (!IsBinaryUpgrade) \
26  ereport(ERROR, \
27  (errcode(ERRCODE_CANT_CHANGE_RUNTIME_PARAM), \
28  (errmsg("function can only be called when server is in binary upgrade mode")))); \
29 } while (0)
30 
31 Datum
33 {
34  Oid typoid = PG_GETARG_OID(0);
35 
38 
40 }
41 
42 Datum
44 {
45  Oid typoid = PG_GETARG_OID(0);
46 
49 
51 }
52 
53 Datum
55 {
56  Oid typoid = PG_GETARG_OID(0);
57 
60 
62 }
63 
64 Datum
66 {
67  Oid reloid = PG_GETARG_OID(0);
68 
71 
73 }
74 
75 Datum
77 {
78  Oid reloid = PG_GETARG_OID(0);
79 
82 
84 }
85 
86 Datum
88 {
89  Oid reloid = PG_GETARG_OID(0);
90 
93 
95 }
96 
97 Datum
99 {
100  Oid enumoid = PG_GETARG_OID(0);
101 
104 
105  PG_RETURN_VOID();
106 }
107 
108 Datum
110 {
111  Oid authoid = PG_GETARG_OID(0);
112 
115  PG_RETURN_VOID();
116 }
117 
118 Datum
120 {
121  text *extName;
122  text *schemaName;
123  bool relocatable;
124  text *extVersion;
125  Datum extConfig;
126  Datum extCondition;
127  List *requiredExtensions;
128 
130 
131  /* We must check these things before dereferencing the arguments */
132  if (PG_ARGISNULL(0) ||
133  PG_ARGISNULL(1) ||
134  PG_ARGISNULL(2) ||
135  PG_ARGISNULL(3))
136  elog(ERROR, "null argument to binary_upgrade_create_empty_extension is not allowed");
137 
138  extName = PG_GETARG_TEXT_PP(0);
139  schemaName = PG_GETARG_TEXT_PP(1);
140  relocatable = PG_GETARG_BOOL(2);
141  extVersion = PG_GETARG_TEXT_PP(3);
142 
143  if (PG_ARGISNULL(4))
144  extConfig = PointerGetDatum(NULL);
145  else
146  extConfig = PG_GETARG_DATUM(4);
147 
148  if (PG_ARGISNULL(5))
149  extCondition = PointerGetDatum(NULL);
150  else
151  extCondition = PG_GETARG_DATUM(5);
152 
153  requiredExtensions = NIL;
154  if (!PG_ARGISNULL(6))
155  {
156  ArrayType *textArray = PG_GETARG_ARRAYTYPE_P(6);
157  Datum *textDatums;
158  int ndatums;
159  int i;
160 
161  deconstruct_array(textArray,
162  TEXTOID, -1, false, 'i',
163  &textDatums, NULL, &ndatums);
164  for (i = 0; i < ndatums; i++)
165  {
166  char *extName = TextDatumGetCString(textDatums[i]);
167  Oid extOid = get_extension_oid(extName, false);
168 
169  requiredExtensions = lappend_oid(requiredExtensions, extOid);
170  }
171  }
172 
174  GetUserId(),
175  get_namespace_oid(text_to_cstring(schemaName), false),
176  relocatable,
177  text_to_cstring(extVersion),
178  extConfig,
179  extCondition,
180  requiredExtensions);
181 
182  PG_RETURN_VOID();
183 }
184 
185 Datum
187 {
188  bool record_init_privs = PG_GETARG_BOOL(0);
189 
191  binary_upgrade_record_init_privs = record_init_privs;
192 
193  PG_RETURN_VOID();
194 }
#define NIL
Definition: pg_list.h:69
Oid get_namespace_oid(const char *nspname, bool missing_ok)
Definition: namespace.c:3005
Oid binary_upgrade_next_pg_authid_oid
Definition: user.c:43
Oid binary_upgrade_next_heap_pg_class_oid
Definition: heap.c:86
bool binary_upgrade_record_init_privs
Definition: aclchk.c:102
Oid GetUserId(void)
Definition: miscinit.c:284
Oid binary_upgrade_next_toast_pg_class_oid
Definition: heap.c:87
#define TEXTOID
Definition: pg_type.h:324
#define PointerGetDatum(X)
Definition: postgres.h:562
#define PG_GETARG_DATUM(n)
Definition: fmgr.h:233
Oid binary_upgrade_next_index_pg_class_oid
Definition: index.c:77
Datum binary_upgrade_set_next_index_pg_class_oid(PG_FUNCTION_ARGS)
#define PG_GETARG_BOOL(n)
Definition: fmgr.h:239
unsigned int Oid
Definition: postgres_ext.h:31
List * lappend_oid(List *list, Oid datum)
Definition: list.c:164
#define PG_GETARG_TEXT_PP(n)
Definition: fmgr.h:273
#define PG_GETARG_ARRAYTYPE_P(n)
Definition: array.h:248
#define ERROR
Definition: elog.h:43
Datum binary_upgrade_create_empty_extension(PG_FUNCTION_ARGS)
Oid binary_upgrade_next_pg_enum_oid
Definition: pg_enum.c:36
#define PG_GETARG_OID(n)
Definition: fmgr.h:240
Oid binary_upgrade_next_pg_type_oid
Definition: pg_type.c:40
Datum binary_upgrade_set_next_toast_pg_class_oid(PG_FUNCTION_ARGS)
#define TextDatumGetCString(d)
Definition: builtins.h:92
uintptr_t Datum
Definition: postgres.h:372
#define PG_RETURN_VOID()
Definition: fmgr.h:309
#define PG_ARGISNULL(n)
Definition: fmgr.h:174
Datum binary_upgrade_set_next_pg_type_oid(PG_FUNCTION_ARGS)
ObjectAddress InsertExtensionTuple(const char *extName, Oid extOwner, Oid schemaOid, bool relocatable, const char *extVersion, Datum extConfig, Datum extCondition, List *requiredExtensions)
Definition: extension.c:1741
Oid binary_upgrade_next_array_pg_type_oid
Definition: typecmds.c:86
Datum binary_upgrade_set_next_heap_pg_class_oid(PG_FUNCTION_ARGS)
void deconstruct_array(ArrayType *array, Oid elmtype, int elmlen, bool elmbyval, char elmalign, Datum **elemsp, bool **nullsp, int *nelemsp)
Definition: arrayfuncs.c:3449
char * text_to_cstring(const text *t)
Definition: varlena.c:183
Oid get_extension_oid(const char *extname, bool missing_ok)
Definition: extension.c:135
Datum binary_upgrade_set_next_array_pg_type_oid(PG_FUNCTION_ARGS)
Datum binary_upgrade_set_next_pg_enum_oid(PG_FUNCTION_ARGS)
int i
Oid binary_upgrade_next_toast_pg_type_oid
Definition: toasting.c:37
Definition: c.h:497
#define PG_FUNCTION_ARGS
Definition: fmgr.h:158
Datum binary_upgrade_set_record_init_privs(PG_FUNCTION_ARGS)
#define elog
Definition: elog.h:219
Datum binary_upgrade_set_next_pg_authid_oid(PG_FUNCTION_ARGS)
Definition: pg_list.h:45
Datum binary_upgrade_set_next_toast_pg_type_oid(PG_FUNCTION_ARGS)
#define CHECK_IS_BINARY_UPGRADE