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Functions
ginvalidate.c File Reference
#include "postgres.h"
#include "access/amvalidate.h"
#include "access/gin_private.h"
#include "access/htup_details.h"
#include "catalog/pg_amop.h"
#include "catalog/pg_amproc.h"
#include "catalog/pg_opclass.h"
#include "catalog/pg_type.h"
#include "utils/lsyscache.h"
#include "utils/regproc.h"
#include "utils/syscache.h"
Include dependency graph for ginvalidate.c:

Go to the source code of this file.

Functions

bool ginvalidate (Oid opclassoid)
 
void ginadjustmembers (Oid opfamilyoid, Oid opclassoid, List *operators, List *functions)
 

Function Documentation

◆ ginadjustmembers()

void ginadjustmembers ( Oid  opfamilyoid,
Oid  opclassoid,
List *  operators,
List *  functions 
)

Definition at line 269 of file ginvalidate.c.

273{
274 ListCell *lc;
275
276 /*
277 * Operator members of a GIN opfamily should never have hard dependencies,
278 * since their connection to the opfamily depends only on what the support
279 * functions think, and that can be altered. For consistency, we make all
280 * soft dependencies point to the opfamily, though a soft dependency on
281 * the opclass would work as well in the CREATE OPERATOR CLASS case.
282 */
283 foreach(lc, operators)
284 {
285 OpFamilyMember *op = (OpFamilyMember *) lfirst(lc);
286
287 op->ref_is_hard = false;
288 op->ref_is_family = true;
289 op->refobjid = opfamilyoid;
290 }
291
292 /*
293 * Required support functions should have hard dependencies. Preferably
294 * those are just dependencies on the opclass, but if we're in ALTER
295 * OPERATOR FAMILY, we leave the dependency pointing at the whole
296 * opfamily. (Given that GIN opclasses generally don't share opfamilies,
297 * it seems unlikely to be worth working harder.)
298 */
299 foreach(lc, functions)
300 {
301 OpFamilyMember *op = (OpFamilyMember *) lfirst(lc);
302
303 switch (op->number)
304 {
305 case GIN_EXTRACTVALUE_PROC:
306 case GIN_EXTRACTQUERY_PROC:
307 /* Required support function */
308 op->ref_is_hard = true;
309 break;
310 case GIN_COMPARE_PROC:
311 case GIN_CONSISTENT_PROC:
312 case GIN_COMPARE_PARTIAL_PROC:
313 case GIN_TRICONSISTENT_PROC:
314 case GIN_OPTIONS_PROC:
315 /* Optional, so force it to be a soft family dependency */
316 op->ref_is_hard = false;
317 op->ref_is_family = true;
318 op->refobjid = opfamilyoid;
319 break;
320 default:
321 ereport(ERROR,
322 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
323 errmsg("support function number %d is invalid for access method %s",
324 op->number, "gin")));
325 break;
326 }
327 }
328}
errcode
int errcode(int sqlerrcode)
Definition elog.c:863
errmsg
int errmsg(const char *fmt,...)
Definition elog.c:1080
ERROR
#define ERROR
Definition elog.h:39
ereport
#define ereport(elevel,...)
Definition elog.h:150
GIN_COMPARE_PROC
#define GIN_COMPARE_PROC
Definition gin.h:24
GIN_CONSISTENT_PROC
#define GIN_CONSISTENT_PROC
Definition gin.h:27
GIN_EXTRACTQUERY_PROC
#define GIN_EXTRACTQUERY_PROC
Definition gin.h:26
GIN_EXTRACTVALUE_PROC
#define GIN_EXTRACTVALUE_PROC
Definition gin.h:25
GIN_TRICONSISTENT_PROC
#define GIN_TRICONSISTENT_PROC
Definition gin.h:29
GIN_COMPARE_PARTIAL_PROC
#define GIN_COMPARE_PARTIAL_PROC
Definition gin.h:28
GIN_OPTIONS_PROC
#define GIN_OPTIONS_PROC
Definition gin.h:30
lfirst
#define lfirst(lc)
Definition pg_list.h:172
fb
static int fb(int x)
Definition preproc-init.c:92
functions
static const struct fns functions
Definition regcomp.c:358
OpFamilyMember::refobjid
Oid refobjid
Definition amapi.h:98
OpFamilyMember::ref_is_family
bool ref_is_family
Definition amapi.h:97
OpFamilyMember::ref_is_hard
bool ref_is_hard
Definition amapi.h:96

References ereport, errcode(), errmsg(), ERROR, fb(), functions, GIN_COMPARE_PARTIAL_PROC, GIN_COMPARE_PROC, GIN_CONSISTENT_PROC, GIN_EXTRACTQUERY_PROC, GIN_EXTRACTVALUE_PROC, GIN_OPTIONS_PROC, GIN_TRICONSISTENT_PROC, lfirst, OpFamilyMember::number, OpFamilyMember::ref_is_family, OpFamilyMember::ref_is_hard, and OpFamilyMember::refobjid.

Referenced by ginhandler().

◆ ginvalidate()

bool ginvalidate ( Oid  opclassoid)

Definition at line 31 of file ginvalidate.c.

32{
33 bool result = true;
34 HeapTuple classtup;
35 Form_pg_opclass classform;
36 Oid opfamilyoid;
37 Oid opcintype;
38 Oid opckeytype;
39 char *opclassname;
40 char *opfamilyname;
41 CatCList *proclist,
42 *oprlist;
43 List *grouplist;
44 OpFamilyOpFuncGroup *opclassgroup;
45 int i;
46 ListCell *lc;
47
48 /* Fetch opclass information */
49 classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
50 if (!HeapTupleIsValid(classtup))
51 elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
52 classform = (Form_pg_opclass) GETSTRUCT(classtup);
53
54 opfamilyoid = classform->opcfamily;
55 opcintype = classform->opcintype;
56 opckeytype = classform->opckeytype;
57 if (!OidIsValid(opckeytype))
58 opckeytype = opcintype;
59 opclassname = NameStr(classform->opcname);
60
61 /* Fetch opfamily information */
62 opfamilyname = get_opfamily_name(opfamilyoid, false);
63
64 /* Fetch all operators and support functions of the opfamily */
65 oprlist = SearchSysCacheList1(AMOPSTRATEGY, ObjectIdGetDatum(opfamilyoid));
66 proclist = SearchSysCacheList1(AMPROCNUM, ObjectIdGetDatum(opfamilyoid));
67
68 /* Check individual support functions */
69 for (i = 0; i < proclist->n_members; i++)
70 {
71 HeapTuple proctup = &proclist->members[i]->tuple;
72 Form_pg_amproc procform = (Form_pg_amproc) GETSTRUCT(proctup);
73 bool ok;
74
75 /*
76 * All GIN support functions should be registered with matching
77 * left/right types
78 */
79 if (procform->amproclefttype != procform->amprocrighttype)
80 {
81 ereport(INFO,
82 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
83 errmsg("operator family \"%s\" of access method %s contains support function %s with different left and right input types",
84 opfamilyname, "gin",
85 format_procedure(procform->amproc))));
86 result = false;
87 }
88
89 /*
90 * We can't check signatures except within the specific opclass, since
91 * we need to know the associated opckeytype in many cases.
92 */
93 if (procform->amproclefttype != opcintype)
94 continue;
95
96 /* Check procedure numbers and function signatures */
97 switch (procform->amprocnum)
98 {
99 case GIN_COMPARE_PROC:
100 ok = check_amproc_signature(procform->amproc, INT4OID, false,
101 2, 2, opckeytype, opckeytype);
102 break;
103 case GIN_EXTRACTVALUE_PROC:
104 /* Some opclasses omit nullFlags */
105 ok = check_amproc_signature(procform->amproc, INTERNALOID, false,
106 2, 3, opcintype, INTERNALOID,
107 INTERNALOID);
108 break;
109 case GIN_EXTRACTQUERY_PROC:
110 /* Some opclasses omit nullFlags and searchMode */
111 ok = check_amproc_signature(procform->amproc, INTERNALOID, false,
112 5, 7, opcintype, INTERNALOID,
113 INT2OID, INTERNALOID, INTERNALOID,
114 INTERNALOID, INTERNALOID);
115 break;
116 case GIN_CONSISTENT_PROC:
117 /* Some opclasses omit queryKeys and nullFlags */
118 ok = check_amproc_signature(procform->amproc, BOOLOID, false,
119 6, 8, INTERNALOID, INT2OID,
120 opcintype, INT4OID,
121 INTERNALOID, INTERNALOID,
122 INTERNALOID, INTERNALOID);
123 break;
124 case GIN_COMPARE_PARTIAL_PROC:
125 ok = check_amproc_signature(procform->amproc, INT4OID, false,
126 4, 4, opckeytype, opckeytype,
127 INT2OID, INTERNALOID);
128 break;
129 case GIN_TRICONSISTENT_PROC:
130 ok = check_amproc_signature(procform->amproc, CHAROID, false,
131 7, 7, INTERNALOID, INT2OID,
132 opcintype, INT4OID,
133 INTERNALOID, INTERNALOID,
134 INTERNALOID);
135 break;
136 case GIN_OPTIONS_PROC:
137 ok = check_amoptsproc_signature(procform->amproc);
138 break;
139 default:
140 ereport(INFO,
141 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
142 errmsg("operator family \"%s\" of access method %s contains function %s with invalid support number %d",
143 opfamilyname, "gin",
144 format_procedure(procform->amproc),
145 procform->amprocnum)));
146 result = false;
147 continue; /* don't want additional message */
148 }
149
150 if (!ok)
151 {
152 ereport(INFO,
153 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
154 errmsg("operator family \"%s\" of access method %s contains function %s with wrong signature for support number %d",
155 opfamilyname, "gin",
156 format_procedure(procform->amproc),
157 procform->amprocnum)));
158 result = false;
159 }
160 }
161
162 /* Check individual operators */
163 for (i = 0; i < oprlist->n_members; i++)
164 {
165 HeapTuple oprtup = &oprlist->members[i]->tuple;
166 Form_pg_amop oprform = (Form_pg_amop) GETSTRUCT(oprtup);
167
168 /* TODO: Check that only allowed strategy numbers exist */
169 if (oprform->amopstrategy < 1 || oprform->amopstrategy > 63)
170 {
171 ereport(INFO,
172 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
173 errmsg("operator family \"%s\" of access method %s contains operator %s with invalid strategy number %d",
174 opfamilyname, "gin",
175 format_operator(oprform->amopopr),
176 oprform->amopstrategy)));
177 result = false;
178 }
179
180 /* gin doesn't support ORDER BY operators */
181 if (oprform->amoppurpose != AMOP_SEARCH ||
182 OidIsValid(oprform->amopsortfamily))
183 {
184 ereport(INFO,
185 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
186 errmsg("operator family \"%s\" of access method %s contains invalid ORDER BY specification for operator %s",
187 opfamilyname, "gin",
188 format_operator(oprform->amopopr))));
189 result = false;
190 }
191
192 /* Check operator signature --- same for all gin strategies */
193 if (!check_amop_signature(oprform->amopopr, BOOLOID,
194 oprform->amoplefttype,
195 oprform->amoprighttype))
196 {
197 ereport(INFO,
198 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
199 errmsg("operator family \"%s\" of access method %s contains operator %s with wrong signature",
200 opfamilyname, "gin",
201 format_operator(oprform->amopopr))));
202 result = false;
203 }
204 }
205
206 /* Now check for inconsistent groups of operators/functions */
207 grouplist = identify_opfamily_groups(oprlist, proclist);
208 opclassgroup = NULL;
209 foreach(lc, grouplist)
210 {
211 OpFamilyOpFuncGroup *thisgroup = (OpFamilyOpFuncGroup *) lfirst(lc);
212
213 /* Remember the group exactly matching the test opclass */
214 if (thisgroup->lefttype == opcintype &&
215 thisgroup->righttype == opcintype)
216 opclassgroup = thisgroup;
217
218 /*
219 * There is not a lot we can do to check the operator sets, since each
220 * GIN opclass is more or less a law unto itself, and some contain
221 * only operators that are binary-compatible with the opclass datatype
222 * (meaning that empty operator sets can be OK). That case also means
223 * that we shouldn't insist on nonempty function sets except for the
224 * opclass's own group.
225 */
226 }
227
228 /* Check that the originally-named opclass is complete */
229 for (i = 1; i <= GINNProcs; i++)
230 {
231 if (opclassgroup &&
232 (opclassgroup->functionset & (((uint64) 1) << i)) != 0)
233 continue; /* got it */
234 if (i == GIN_COMPARE_PROC || i == GIN_COMPARE_PARTIAL_PROC ||
235 i == GIN_OPTIONS_PROC)
236 continue; /* optional method */
237 if (i == GIN_CONSISTENT_PROC || i == GIN_TRICONSISTENT_PROC)
238 continue; /* don't need both, see check below loop */
239 ereport(INFO,
240 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
241 errmsg("operator class \"%s\" of access method %s is missing support function %d",
242 opclassname, "gin", i)));
243 result = false;
244 }
245 if (!opclassgroup ||
246 ((opclassgroup->functionset & (1 << GIN_CONSISTENT_PROC)) == 0 &&
247 (opclassgroup->functionset & (1 << GIN_TRICONSISTENT_PROC)) == 0))
248 {
249 ereport(INFO,
250 (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
251 errmsg("operator class \"%s\" of access method %s is missing support function %d or %d",
252 opclassname, "gin",
253 GIN_CONSISTENT_PROC, GIN_TRICONSISTENT_PROC)));
254 result = false;
255 }
256
257
258 ReleaseCatCacheList(proclist);
259 ReleaseCatCacheList(oprlist);
260 ReleaseSysCache(classtup);
261
262 return result;
263}
check_amproc_signature
bool check_amproc_signature(Oid funcid, Oid restype, bool exact, int minargs, int maxargs,...)
Definition amvalidate.c:152
check_amop_signature
bool check_amop_signature(Oid opno, Oid restype, Oid lefttype, Oid righttype)
Definition amvalidate.c:206
identify_opfamily_groups
List * identify_opfamily_groups(CatCList *oprlist, CatCList *proclist)
Definition amvalidate.c:43
check_amoptsproc_signature
bool check_amoptsproc_signature(Oid funcid)
Definition amvalidate.c:192
NameStr
#define NameStr(name)
Definition c.h:765
uint64
uint64_t uint64
Definition c.h:547
OidIsValid
#define OidIsValid(objectId)
Definition c.h:788
ReleaseCatCacheList
void ReleaseCatCacheList(CatCList *list)
Definition catcache.c:2114
elog
#define elog(elevel,...)
Definition elog.h:226
INFO
#define INFO
Definition elog.h:34
GINNProcs
#define GINNProcs
Definition gin.h:31
HeapTupleIsValid
#define HeapTupleIsValid(tuple)
Definition htup.h:78
GETSTRUCT
static void * GETSTRUCT(const HeapTupleData *tuple)
Definition htup_details.h:728
i
int i
Definition isn.c:77
get_opfamily_name
char * get_opfamily_name(Oid opfid, bool missing_ok)
Definition lsyscache.c:1403
Form_pg_amop
FormData_pg_amop * Form_pg_amop
Definition pg_amop.h:88
Form_pg_amproc
FormData_pg_amproc * Form_pg_amproc
Definition pg_amproc.h:68
Form_pg_opclass
FormData_pg_opclass * Form_pg_opclass
Definition pg_opclass.h:83
ObjectIdGetDatum
static Datum ObjectIdGetDatum(Oid X)
Definition postgres.h:262
Oid
unsigned int Oid
Definition postgres_ext.h:32
format_procedure
char * format_procedure(Oid procedure_oid)
Definition regproc.c:305
format_operator
char * format_operator(Oid operator_oid)
Definition regproc.c:801
List
Definition pg_list.h:54
ReleaseSysCache
void ReleaseSysCache(HeapTuple tuple)
Definition syscache.c:264
SearchSysCache1
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition syscache.c:220
SearchSysCacheList1
#define SearchSysCacheList1(cacheId, key1)
Definition syscache.h:127

References check_amop_signature(), check_amoptsproc_signature(), check_amproc_signature(), elog, ereport, errcode(), errmsg(), ERROR, fb(), format_operator(), format_procedure(), get_opfamily_name(), GETSTRUCT(), GIN_COMPARE_PARTIAL_PROC, GIN_COMPARE_PROC, GIN_CONSISTENT_PROC, GIN_EXTRACTQUERY_PROC, GIN_EXTRACTVALUE_PROC, GIN_OPTIONS_PROC, GIN_TRICONSISTENT_PROC, GINNProcs, HeapTupleIsValid, i, identify_opfamily_groups(), INFO, lfirst, NameStr, ObjectIdGetDatum(), OidIsValid, ReleaseCatCacheList(), ReleaseSysCache(), SearchSysCache1(), and SearchSysCacheList1.

Referenced by ginhandler().