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test_ddl_deparse.c
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1 /*----------------------------------------------------------------------
2  * test_ddl_deparse.c
3  * Support functions for the test_ddl_deparse module
4  *
5  * Copyright (c) 2014-2021, PostgreSQL Global Development Group
6  *
7  * IDENTIFICATION
8  * src/test/modules/test_ddl_deparse/test_ddl_deparse.c
9  *----------------------------------------------------------------------
10  */
11 #include "postgres.h"
12 
13 #include "catalog/pg_type.h"
14 #include "tcop/deparse_utility.h"
15 #include "tcop/utility.h"
16 #include "utils/builtins.h"
17 
18 PG_MODULE_MAGIC;
19 
20 PG_FUNCTION_INFO_V1(get_command_type);
21 PG_FUNCTION_INFO_V1(get_command_tag);
22 PG_FUNCTION_INFO_V1(get_altertable_subcmdtypes);
23 
24 /*
25  * Return the textual representation of the struct type used to represent a
26  * command in struct CollectedCommand format.
27  */
28 Datum
29 get_command_type(PG_FUNCTION_ARGS)
30 {
31  CollectedCommand *cmd = (CollectedCommand *) PG_GETARG_POINTER(0);
32  const char *type;
33 
34  switch (cmd->type)
35  {
36  case SCT_Simple:
37  type = "simple";
38  break;
39  case SCT_AlterTable:
40  type = "alter table";
41  break;
42  case SCT_Grant:
43  type = "grant";
44  break;
45  case SCT_AlterOpFamily:
46  type = "alter operator family";
47  break;
48  case SCT_AlterDefaultPrivileges:
49  type = "alter default privileges";
50  break;
51  case SCT_CreateOpClass:
52  type = "create operator class";
53  break;
54  case SCT_AlterTSConfig:
55  type = "alter text search configuration";
56  break;
57  default:
58  type = "unknown command type";
59  break;
60  }
61 
62  PG_RETURN_TEXT_P(cstring_to_text(type));
63 }
64 
65 /*
66  * Return the command tag corresponding to a parse node contained in a
67  * CollectedCommand struct.
68  */
69 Datum
70 get_command_tag(PG_FUNCTION_ARGS)
71 {
72  CollectedCommand *cmd = (CollectedCommand *) PG_GETARG_POINTER(0);
73 
74  if (!cmd->parsetree)
75  PG_RETURN_NULL();
76 
77  PG_RETURN_TEXT_P(cstring_to_text(CreateCommandName(cmd->parsetree)));
78 }
79 
80 /*
81  * Return a text array representation of the subcommands of an ALTER TABLE
82  * command.
83  */
84 Datum
85 get_altertable_subcmdtypes(PG_FUNCTION_ARGS)
86 {
87  CollectedCommand *cmd = (CollectedCommand *) PG_GETARG_POINTER(0);
88  ArrayBuildState *astate = NULL;
89  ListCell *cell;
90 
91  if (cmd->type != SCT_AlterTable)
92  elog(ERROR, "command is not ALTER TABLE");
93 
94  foreach(cell, cmd->d.alterTable.subcmds)
95  {
96  CollectedATSubcmd *sub = lfirst(cell);
97  AlterTableCmd *subcmd = castNode(AlterTableCmd, sub->parsetree);
98  const char *strtype;
99 
100  switch (subcmd->subtype)
101  {
102  case AT_AddColumn:
103  strtype = "ADD COLUMN";
104  break;
105  case AT_AddColumnRecurse:
106  strtype = "ADD COLUMN (and recurse)";
107  break;
108  case AT_AddColumnToView:
109  strtype = "ADD COLUMN TO VIEW";
110  break;
111  case AT_ColumnDefault:
112  strtype = "ALTER COLUMN SET DEFAULT";
113  break;
114  case AT_CookedColumnDefault:
115  strtype = "ALTER COLUMN SET DEFAULT (precooked)";
116  break;
117  case AT_DropNotNull:
118  strtype = "DROP NOT NULL";
119  break;
120  case AT_SetNotNull:
121  strtype = "SET NOT NULL";
122  break;
123  case AT_CheckNotNull:
124  strtype = "CHECK NOT NULL";
125  break;
126  case AT_SetStatistics:
127  strtype = "SET STATS";
128  break;
129  case AT_SetOptions:
130  strtype = "SET OPTIONS";
131  break;
132  case AT_ResetOptions:
133  strtype = "RESET OPTIONS";
134  break;
135  case AT_SetStorage:
136  strtype = "SET STORAGE";
137  break;
138  case AT_DropColumn:
139  strtype = "DROP COLUMN";
140  break;
141  case AT_DropColumnRecurse:
142  strtype = "DROP COLUMN (and recurse)";
143  break;
144  case AT_AddIndex:
145  strtype = "ADD INDEX";
146  break;
147  case AT_ReAddIndex:
148  strtype = "(re) ADD INDEX";
149  break;
150  case AT_AddConstraint:
151  strtype = "ADD CONSTRAINT";
152  break;
153  case AT_AddConstraintRecurse:
154  strtype = "ADD CONSTRAINT (and recurse)";
155  break;
156  case AT_ReAddConstraint:
157  strtype = "(re) ADD CONSTRAINT";
158  break;
159  case AT_AlterConstraint:
160  strtype = "ALTER CONSTRAINT";
161  break;
162  case AT_ValidateConstraint:
163  strtype = "VALIDATE CONSTRAINT";
164  break;
165  case AT_ValidateConstraintRecurse:
166  strtype = "VALIDATE CONSTRAINT (and recurse)";
167  break;
168  case AT_AddIndexConstraint:
169  strtype = "ADD CONSTRAINT (using index)";
170  break;
171  case AT_DropConstraint:
172  strtype = "DROP CONSTRAINT";
173  break;
174  case AT_DropConstraintRecurse:
175  strtype = "DROP CONSTRAINT (and recurse)";
176  break;
177  case AT_ReAddComment:
178  strtype = "(re) ADD COMMENT";
179  break;
180  case AT_AlterColumnType:
181  strtype = "ALTER COLUMN SET TYPE";
182  break;
183  case AT_AlterColumnGenericOptions:
184  strtype = "ALTER COLUMN SET OPTIONS";
185  break;
186  case AT_ChangeOwner:
187  strtype = "CHANGE OWNER";
188  break;
189  case AT_ClusterOn:
190  strtype = "CLUSTER";
191  break;
192  case AT_DropCluster:
193  strtype = "DROP CLUSTER";
194  break;
195  case AT_SetLogged:
196  strtype = "SET LOGGED";
197  break;
198  case AT_SetUnLogged:
199  strtype = "SET UNLOGGED";
200  break;
201  case AT_DropOids:
202  strtype = "DROP OIDS";
203  break;
204  case AT_SetTableSpace:
205  strtype = "SET TABLESPACE";
206  break;
207  case AT_SetRelOptions:
208  strtype = "SET RELOPTIONS";
209  break;
210  case AT_ResetRelOptions:
211  strtype = "RESET RELOPTIONS";
212  break;
213  case AT_ReplaceRelOptions:
214  strtype = "REPLACE RELOPTIONS";
215  break;
216  case AT_EnableTrig:
217  strtype = "ENABLE TRIGGER";
218  break;
219  case AT_EnableAlwaysTrig:
220  strtype = "ENABLE TRIGGER (always)";
221  break;
222  case AT_EnableReplicaTrig:
223  strtype = "ENABLE TRIGGER (replica)";
224  break;
225  case AT_DisableTrig:
226  strtype = "DISABLE TRIGGER";
227  break;
228  case AT_EnableTrigAll:
229  strtype = "ENABLE TRIGGER (all)";
230  break;
231  case AT_DisableTrigAll:
232  strtype = "DISABLE TRIGGER (all)";
233  break;
234  case AT_EnableTrigUser:
235  strtype = "ENABLE TRIGGER (user)";
236  break;
237  case AT_DisableTrigUser:
238  strtype = "DISABLE TRIGGER (user)";
239  break;
240  case AT_EnableRule:
241  strtype = "ENABLE RULE";
242  break;
243  case AT_EnableAlwaysRule:
244  strtype = "ENABLE RULE (always)";
245  break;
246  case AT_EnableReplicaRule:
247  strtype = "ENABLE RULE (replica)";
248  break;
249  case AT_DisableRule:
250  strtype = "DISABLE RULE";
251  break;
252  case AT_AddInherit:
253  strtype = "ADD INHERIT";
254  break;
255  case AT_DropInherit:
256  strtype = "DROP INHERIT";
257  break;
258  case AT_AddOf:
259  strtype = "OF";
260  break;
261  case AT_DropOf:
262  strtype = "NOT OF";
263  break;
264  case AT_ReplicaIdentity:
265  strtype = "REPLICA IDENTITY";
266  break;
267  case AT_EnableRowSecurity:
268  strtype = "ENABLE ROW SECURITY";
269  break;
270  case AT_DisableRowSecurity:
271  strtype = "DISABLE ROW SECURITY";
272  break;
273  case AT_ForceRowSecurity:
274  strtype = "FORCE ROW SECURITY";
275  break;
276  case AT_NoForceRowSecurity:
277  strtype = "NO FORCE ROW SECURITY";
278  break;
279  case AT_GenericOptions:
280  strtype = "SET OPTIONS";
281  break;
282  default:
283  strtype = "unrecognized";
284  break;
285  }
286 
287  astate =
288  accumArrayResult(astate, CStringGetTextDatum(strtype),
289  false, TEXTOID, CurrentMemoryContext);
290  }
291 
292  if (astate == NULL)
293  elog(ERROR, "empty alter table subcommand list");
294 
295  PG_RETURN_ARRAYTYPE_P(makeArrayResult(astate, CurrentMemoryContext));
296 }
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Definition: test_ddl_deparse.c:29
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Definition: test_ddl_deparse.c:70
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