/*
* Validator for a btree opclass.
*
* Some of the checks done here cover the whole opfamily, and therefore are
* redundant when checking each opclass in a family. But they don't run long
* enough to be much of a problem, so we accept the duplication rather than
* complicate the amvalidate API.
*/
bool
btvalidate(Oid opclassoid)
{
bool result = true;
HeapTuple classtup;
Form_pg_opclass classform;
Oid opfamilyoid;
Oid opcintype;
char *opclassname;
HeapTuple familytup;
Form_pg_opfamily familyform;
char *opfamilyname;
CatCList *proclist,
*oprlist;
List *grouplist;
OpFamilyOpFuncGroup *opclassgroup;
List *familytypes;
int i;
ListCell *lc;
/* Fetch opclass information */
classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
if (!HeapTupleIsValid(classtup))
elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
classform = (Form_pg_opclass) GETSTRUCT(classtup);
opfamilyoid = classform->opcfamily;
opcintype = classform->opcintype;
opclassname = NameStr(classform->opcname);
/* Fetch opfamily information */
familytup = SearchSysCache1(OPFAMILYOID, ObjectIdGetDatum(opfamilyoid));
if (!HeapTupleIsValid(familytup))
elog(ERROR, "cache lookup failed for operator family %u", opfamilyoid);
familyform = (Form_pg_opfamily) GETSTRUCT(familytup);
opfamilyname = NameStr(familyform->opfname);
/* Fetch all operators and support functions of the opfamily */
oprlist = SearchSysCacheList1(AMOPSTRATEGY, ObjectIdGetDatum(opfamilyoid));
proclist = SearchSysCacheList1(AMPROCNUM, ObjectIdGetDatum(opfamilyoid));
/* Check individual support functions */
for (i = 0; i < proclist->n_members; i++)
{
HeapTuple proctup = &proclist->members[i]->tuple;
Form_pg_amproc procform = (Form_pg_amproc) GETSTRUCT(proctup);
bool ok;
/* Check procedure numbers and function signatures */
switch (procform->amprocnum)
{
case BTORDER_PROC:
ok = check_amproc_signature(procform->amproc, INT4OID, true,
2, 2, procform->amproclefttype,
procform->amprocrighttype);
break;
case BTSORTSUPPORT_PROC:
ok = check_amproc_signature(procform->amproc, VOIDOID, true,
1, 1, INTERNALOID);
break;
default:
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" contains function %s with invalid support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
continue; /* don't want additional message */
}
if (!ok)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" contains function %s with wrong signature for support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
}
}
/* Check individual operators */
for (i = 0; i < oprlist->n_members; i++)
{
HeapTuple oprtup = &oprlist->members[i]->tuple;
Form_pg_amop oprform = (Form_pg_amop) GETSTRUCT(oprtup);
/* Check that only allowed strategy numbers exist */
if (oprform->amopstrategy < 1 ||
oprform->amopstrategy > BTMaxStrategyNumber)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" contains operator %s with invalid strategy number %d",
opfamilyname,
format_operator(oprform->amopopr),
oprform->amopstrategy)));
result = false;
}
/* btree doesn't support ORDER BY operators */
if (oprform->amoppurpose != AMOP_SEARCH ||
OidIsValid(oprform->amopsortfamily))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" contains invalid ORDER BY specification for operator %s",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
/* Check operator signature --- same for all btree strategies */
if (!check_amop_signature(oprform->amopopr, BOOLOID,
oprform->amoplefttype,
oprform->amoprighttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" contains operator %s with wrong signature",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
}
/* Now check for inconsistent groups of operators/functions */
grouplist = identify_opfamily_groups(oprlist, proclist);
opclassgroup = NULL;
familytypes = NIL;
foreach(lc, grouplist)
{
OpFamilyOpFuncGroup *thisgroup = (OpFamilyOpFuncGroup *) lfirst(lc);
/* Remember the group exactly matching the test opclass */
if (thisgroup->lefttype == opcintype &&
thisgroup->righttype == opcintype)
opclassgroup = thisgroup;
/*
* Identify all distinct data types handled in this opfamily. This
* implementation is O(N^2), but there aren't likely to be enough
* types in the family for it to matter.
*/
familytypes = list_append_unique_oid(familytypes, thisgroup->lefttype);
familytypes = list_append_unique_oid(familytypes, thisgroup->righttype);
/*
* Complain if there seems to be an incomplete set of either operators
* or support functions for this datatype pair. The only thing that
* is considered optional is the sortsupport function.
*/
if (thisgroup->operatorset !=
((1 << BTLessStrategyNumber) |
(1 << BTLessEqualStrategyNumber) |
(1 << BTEqualStrategyNumber) |
(1 << BTGreaterEqualStrategyNumber) |
(1 << BTGreaterStrategyNumber)))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" is missing operator(s) for types %s and %s",
opfamilyname,
format_type_be(thisgroup->lefttype),
format_type_be(thisgroup->righttype))));
result = false;
}
if ((thisgroup->functionset & (1 << BTORDER_PROC)) == 0)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("btree operator family \"%s\" is missing support function for types %s and %s",
opfamilyname,
format_type_be(thisgroup->lefttype),
format_type_be(thisgroup->righttype))));
result = false;
}
}
/*
* Validator for a hash opclass.
*
* Some of the checks done here cover the whole opfamily, and therefore are
* redundant when checking each opclass in a family. But they don't run long
* enough to be much of a problem, so we accept the duplication rather than
* complicate the amvalidate API.
*/
bool
hashvalidate(Oid opclassoid)
{
bool result = true;
HeapTuple classtup;
Form_pg_opclass classform;
Oid opfamilyoid;
Oid opcintype;
char *opclassname;
HeapTuple familytup;
Form_pg_opfamily familyform;
char *opfamilyname;
CatCList *proclist,
*oprlist;
List *grouplist;
OpFamilyOpFuncGroup *opclassgroup;
List *hashabletypes = NIL;
int i;
ListCell *lc;
/* Fetch opclass information */
classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
if (!HeapTupleIsValid(classtup))
elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
classform = (Form_pg_opclass) GETSTRUCT(classtup);
opfamilyoid = classform->opcfamily;
opcintype = classform->opcintype;
opclassname = NameStr(classform->opcname);
/* Fetch opfamily information */
familytup = SearchSysCache1(OPFAMILYOID, ObjectIdGetDatum(opfamilyoid));
if (!HeapTupleIsValid(familytup))
elog(ERROR, "cache lookup failed for operator family %u", opfamilyoid);
familyform = (Form_pg_opfamily) GETSTRUCT(familytup);
opfamilyname = NameStr(familyform->opfname);
/* Fetch all operators and support functions of the opfamily */
oprlist = SearchSysCacheList1(AMOPSTRATEGY, ObjectIdGetDatum(opfamilyoid));
proclist = SearchSysCacheList1(AMPROCNUM, ObjectIdGetDatum(opfamilyoid));
/* Check individual support functions */
for (i = 0; i < proclist->n_members; i++)
{
HeapTuple proctup = &proclist->members[i]->tuple;
Form_pg_amproc procform = (Form_pg_amproc) GETSTRUCT(proctup);
/*
* All hash functions should be registered with matching left/right
* types
*/
if (procform->amproclefttype != procform->amprocrighttype)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" contains support procedure %s with cross-type registration",
opfamilyname,
format_procedure(procform->amproc))));
result = false;
}
/* Check procedure numbers and function signatures */
switch (procform->amprocnum)
{
case HASHPROC:
if (!check_hash_func_signature(procform->amproc, INT4OID,
procform->amproclefttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" contains function %s with wrong signature for support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
}
else
{
/* Remember which types we can hash */
hashabletypes =
list_append_unique_oid(hashabletypes,
procform->amproclefttype);
}
break;
default:
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" contains function %s with invalid support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
break;
}
}
/* Check individual operators */
for (i = 0; i < oprlist->n_members; i++)
{
HeapTuple oprtup = &oprlist->members[i]->tuple;
Form_pg_amop oprform = (Form_pg_amop) GETSTRUCT(oprtup);
/* Check that only allowed strategy numbers exist */
if (oprform->amopstrategy < 1 ||
oprform->amopstrategy > HTMaxStrategyNumber)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" contains operator %s with invalid strategy number %d",
opfamilyname,
format_operator(oprform->amopopr),
oprform->amopstrategy)));
result = false;
}
/* hash doesn't support ORDER BY operators */
if (oprform->amoppurpose != AMOP_SEARCH ||
OidIsValid(oprform->amopsortfamily))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" contains invalid ORDER BY specification for operator %s",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
/* Check operator signature --- same for all hash strategies */
if (!check_amop_signature(oprform->amopopr, BOOLOID,
oprform->amoplefttype,
oprform->amoprighttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" contains operator %s with wrong signature",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
/* There should be relevant hash procedures for each datatype */
if (!list_member_oid(hashabletypes, oprform->amoplefttype) ||
!list_member_oid(hashabletypes, oprform->amoprighttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" lacks support function for operator %s",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
}
/* Now check for inconsistent groups of operators/functions */
grouplist = identify_opfamily_groups(oprlist, proclist);
opclassgroup = NULL;
foreach(lc, grouplist)
{
OpFamilyOpFuncGroup *thisgroup = (OpFamilyOpFuncGroup *) lfirst(lc);
/* Remember the group exactly matching the test opclass */
if (thisgroup->lefttype == opcintype &&
thisgroup->righttype == opcintype)
opclassgroup = thisgroup;
/*
* Complain if there seems to be an incomplete set of operators for
* this datatype pair (implying that we have a hash function but no
* operator).
*/
if (thisgroup->operatorset != (1 << HTEqualStrategyNumber))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("hash operator family \"%s\" is missing operator(s) for types %s and %s",
opfamilyname,
format_type_be(thisgroup->lefttype),
format_type_be(thisgroup->righttype))));
result = false;
}
}
/*
* Validator for an SP-GiST opclass.
*
* Some of the checks done here cover the whole opfamily, and therefore are
* redundant when checking each opclass in a family. But they don't run long
* enough to be much of a problem, so we accept the duplication rather than
* complicate the amvalidate API.
*/
bool
spgvalidate(Oid opclassoid)
{
bool result = true;
HeapTuple classtup;
Form_pg_opclass classform;
Oid opfamilyoid;
Oid opcintype;
char *opclassname;
HeapTuple familytup;
Form_pg_opfamily familyform;
char *opfamilyname;
CatCList *proclist,
*oprlist;
List *grouplist;
OpFamilyOpFuncGroup *opclassgroup;
int i;
ListCell *lc;
/* Fetch opclass information */
classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
if (!HeapTupleIsValid(classtup))
elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
classform = (Form_pg_opclass) GETSTRUCT(classtup);
opfamilyoid = classform->opcfamily;
opcintype = classform->opcintype;
opclassname = NameStr(classform->opcname);
/* Fetch opfamily information */
familytup = SearchSysCache1(OPFAMILYOID, ObjectIdGetDatum(opfamilyoid));
if (!HeapTupleIsValid(familytup))
elog(ERROR, "cache lookup failed for operator family %u", opfamilyoid);
familyform = (Form_pg_opfamily) GETSTRUCT(familytup);
opfamilyname = NameStr(familyform->opfname);
/* Fetch all operators and support functions of the opfamily */
oprlist = SearchSysCacheList1(AMOPSTRATEGY, ObjectIdGetDatum(opfamilyoid));
proclist = SearchSysCacheList1(AMPROCNUM, ObjectIdGetDatum(opfamilyoid));
/* Check individual support functions */
for (i = 0; i < proclist->n_members; i++)
{
HeapTuple proctup = &proclist->members[i]->tuple;
Form_pg_amproc procform = (Form_pg_amproc) GETSTRUCT(proctup);
bool ok;
/*
* All SP-GiST support functions should be registered with matching
* left/right types
*/
if (procform->amproclefttype != procform->amprocrighttype)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s contains support procedure %s with cross-type registration",
opfamilyname,
format_procedure(procform->amproc))));
result = false;
}
/* Check procedure numbers and function signatures */
switch (procform->amprocnum)
{
case SPGIST_CONFIG_PROC:
case SPGIST_CHOOSE_PROC:
case SPGIST_PICKSPLIT_PROC:
case SPGIST_INNER_CONSISTENT_PROC:
ok = check_amproc_signature(procform->amproc, VOIDOID, true,
2, 2, INTERNALOID, INTERNALOID);
break;
case SPGIST_LEAF_CONSISTENT_PROC:
ok = check_amproc_signature(procform->amproc, BOOLOID, true,
2, 2, INTERNALOID, INTERNALOID);
break;
default:
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s contains function %s with invalid support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
continue; /* don't want additional message */
}
if (!ok)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s contains function %s with wrong signature for support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
}
}
/* Check individual operators */
for (i = 0; i < oprlist->n_members; i++)
{
HeapTuple oprtup = &oprlist->members[i]->tuple;
Form_pg_amop oprform = (Form_pg_amop) GETSTRUCT(oprtup);
/* TODO: Check that only allowed strategy numbers exist */
if (oprform->amopstrategy < 1 || oprform->amopstrategy > 63)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s contains operator %s with invalid strategy number %d",
opfamilyname,
format_operator(oprform->amopopr),
oprform->amopstrategy)));
result = false;
}
/* spgist doesn't support ORDER BY operators */
if (oprform->amoppurpose != AMOP_SEARCH ||
OidIsValid(oprform->amopsortfamily))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s contains invalid ORDER BY specification for operator %s",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
/* Check operator signature --- same for all spgist strategies */
if (!check_amop_signature(oprform->amopopr, BOOLOID,
oprform->amoplefttype,
oprform->amoprighttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s contains operator %s with wrong signature",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
}
/* Now check for inconsistent groups of operators/functions */
grouplist = identify_opfamily_groups(oprlist, proclist);
opclassgroup = NULL;
foreach(lc, grouplist)
{
OpFamilyOpFuncGroup *thisgroup = (OpFamilyOpFuncGroup *) lfirst(lc);
/* Remember the group exactly matching the test opclass */
if (thisgroup->lefttype == opcintype &&
thisgroup->righttype == opcintype)
opclassgroup = thisgroup;
/*
* Complain if there are any datatype pairs with functions but no
* operators. This is about the best we can do for now to detect
* missing operators.
*/
if (thisgroup->operatorset == 0)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s is missing operator(s) for types %s and %s",
opfamilyname,
format_type_be(thisgroup->lefttype),
format_type_be(thisgroup->righttype))));
result = false;
}
/*
* Complain if we're missing functions for any datatype, remembering
* that SP-GiST doesn't use cross-type support functions.
*/
if (thisgroup->lefttype != thisgroup->righttype)
continue;
for (i = 1; i <= SPGISTNProc; i++)
{
if ((thisgroup->functionset & (((uint64) 1) << i)) != 0)
continue; /* got it */
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("spgist opfamily %s is missing support function %d for type %s",
opfamilyname, i,
format_type_be(thisgroup->lefttype))));
result = false;
}
}
/*
* Validator for a bloom opclass.
*/
bool
blvalidate(Oid opclassoid)
{
bool result = true;
HeapTuple classtup;
Form_pg_opclass classform;
Oid opfamilyoid;
Oid opcintype;
Oid opckeytype;
char *opclassname;
HeapTuple familytup;
Form_pg_opfamily familyform;
char *opfamilyname;
CatCList *proclist,
*oprlist;
List *grouplist;
OpFamilyOpFuncGroup *opclassgroup;
int i;
ListCell *lc;
/* Fetch opclass information */
classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
if (!HeapTupleIsValid(classtup))
elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
classform = (Form_pg_opclass) GETSTRUCT(classtup);
opfamilyoid = classform->opcfamily;
opcintype = classform->opcintype;
opckeytype = classform->opckeytype;
if (!OidIsValid(opckeytype))
opckeytype = opcintype;
opclassname = NameStr(classform->opcname);
/* Fetch opfamily information */
familytup = SearchSysCache1(OPFAMILYOID, ObjectIdGetDatum(opfamilyoid));
if (!HeapTupleIsValid(familytup))
elog(ERROR, "cache lookup failed for operator family %u", opfamilyoid);
familyform = (Form_pg_opfamily) GETSTRUCT(familytup);
opfamilyname = NameStr(familyform->opfname);
/* Fetch all operators and support functions of the opfamily */
oprlist = SearchSysCacheList1(AMOPSTRATEGY, ObjectIdGetDatum(opfamilyoid));
proclist = SearchSysCacheList1(AMPROCNUM, ObjectIdGetDatum(opfamilyoid));
/* Check individual support functions */
for (i = 0; i < proclist->n_members; i++)
{
HeapTuple proctup = &proclist->members[i]->tuple;
Form_pg_amproc procform = (Form_pg_amproc) GETSTRUCT(proctup);
bool ok;
/*
* All bloom support functions should be registered with matching
* left/right types
*/
if (procform->amproclefttype != procform->amprocrighttype)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("bloom opfamily %s contains support procedure %s with cross-type registration",
opfamilyname,
format_procedure(procform->amproc))));
result = false;
}
/*
* We can't check signatures except within the specific opclass, since
* we need to know the associated opckeytype in many cases.
*/
if (procform->amproclefttype != opcintype)
continue;
/* Check procedure numbers and function signatures */
switch (procform->amprocnum)
{
case BLOOM_HASH_PROC:
ok = check_amproc_signature(procform->amproc, INT4OID, false,
1, 1, opckeytype);
break;
default:
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("bloom opfamily %s contains function %s with invalid support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
continue; /* don't want additional message */
}
if (!ok)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("gist opfamily %s contains function %s with wrong signature for support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
}
}
/* Check individual operators */
for (i = 0; i < oprlist->n_members; i++)
{
HeapTuple oprtup = &oprlist->members[i]->tuple;
Form_pg_amop oprform = (Form_pg_amop) GETSTRUCT(oprtup);
/* Check it's allowed strategy for bloom */
if (oprform->amopstrategy < 1 ||
oprform->amopstrategy > BLOOM_NSTRATEGIES)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("bloom opfamily %s contains operator %s with invalid strategy number %d",
opfamilyname,
format_operator(oprform->amopopr),
oprform->amopstrategy)));
result = false;
}
/* bloom doesn't support ORDER BY operators */
if (oprform->amoppurpose != AMOP_SEARCH ||
OidIsValid(oprform->amopsortfamily))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("bloom opfamily %s contains invalid ORDER BY specification for operator %s",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
/* Check operator signature --- same for all bloom strategies */
if (!check_amop_signature(oprform->amopopr, BOOLOID,
oprform->amoplefttype,
oprform->amoprighttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("bloom opfamily %s contains operator %s with wrong signature",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
}
/* Now check for inconsistent groups of operators/functions */
grouplist = identify_opfamily_groups(oprlist, proclist);
opclassgroup = NULL;
foreach(lc, grouplist)
{
OpFamilyOpFuncGroup *thisgroup = (OpFamilyOpFuncGroup *) lfirst(lc);
/* Remember the group exactly matching the test opclass */
if (thisgroup->lefttype == opcintype &&
thisgroup->righttype == opcintype)
opclassgroup = thisgroup;
/*
* There is not a lot we can do to check the operator sets, since each
* bloom opclass is more or less a law unto itself, and some contain
* only operators that are binary-compatible with the opclass datatype
* (meaning that empty operator sets can be OK). That case also means
* that we shouldn't insist on nonempty function sets except for the
* opclass's own group.
*/
}
/*
* Validator for a BRIN opclass.
*
* Some of the checks done here cover the whole opfamily, and therefore are
* redundant when checking each opclass in a family. But they don't run long
* enough to be much of a problem, so we accept the duplication rather than
* complicate the amvalidate API.
*/
bool
brinvalidate(Oid opclassoid)
{
bool result = true;
HeapTuple classtup;
Form_pg_opclass classform;
Oid opfamilyoid;
Oid opcintype;
char *opclassname;
HeapTuple familytup;
Form_pg_opfamily familyform;
char *opfamilyname;
CatCList *proclist,
*oprlist;
uint64 allfuncs = 0;
uint64 allops = 0;
List *grouplist;
OpFamilyOpFuncGroup *opclassgroup;
int i;
ListCell *lc;
/* Fetch opclass information */
classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
if (!HeapTupleIsValid(classtup))
elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
classform = (Form_pg_opclass) GETSTRUCT(classtup);
opfamilyoid = classform->opcfamily;
opcintype = classform->opcintype;
opclassname = NameStr(classform->opcname);
/* Fetch opfamily information */
familytup = SearchSysCache1(OPFAMILYOID, ObjectIdGetDatum(opfamilyoid));
if (!HeapTupleIsValid(familytup))
elog(ERROR, "cache lookup failed for operator family %u", opfamilyoid);
familyform = (Form_pg_opfamily) GETSTRUCT(familytup);
opfamilyname = NameStr(familyform->opfname);
/* Fetch all operators and support functions of the opfamily */
oprlist = SearchSysCacheList1(AMOPSTRATEGY, ObjectIdGetDatum(opfamilyoid));
proclist = SearchSysCacheList1(AMPROCNUM, ObjectIdGetDatum(opfamilyoid));
/* Check individual support functions */
for (i = 0; i < proclist->n_members; i++)
{
HeapTuple proctup = &proclist->members[i]->tuple;
Form_pg_amproc procform = (Form_pg_amproc) GETSTRUCT(proctup);
bool ok;
/* Check procedure numbers and function signatures */
switch (procform->amprocnum)
{
case BRIN_PROCNUM_OPCINFO:
ok = check_amproc_signature(procform->amproc, INTERNALOID, true,
1, 1, INTERNALOID);
break;
case BRIN_PROCNUM_ADDVALUE:
ok = check_amproc_signature(procform->amproc, BOOLOID, true,
4, 4, INTERNALOID, INTERNALOID,
INTERNALOID, INTERNALOID);
break;
case BRIN_PROCNUM_CONSISTENT:
ok = check_amproc_signature(procform->amproc, BOOLOID, true,
3, 3, INTERNALOID, INTERNALOID,
INTERNALOID);
break;
case BRIN_PROCNUM_UNION:
ok = check_amproc_signature(procform->amproc, BOOLOID, true,
3, 3, INTERNALOID, INTERNALOID,
INTERNALOID);
break;
default:
/* Complain if it's not a valid optional proc number */
if (procform->amprocnum < BRIN_FIRST_OPTIONAL_PROCNUM ||
procform->amprocnum > BRIN_LAST_OPTIONAL_PROCNUM)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" contains function %s with invalid support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
continue; /* omit bad proc numbers from allfuncs */
}
/* Can't check signatures of optional procs, so assume OK */
ok = true;
break;
}
if (!ok)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" contains function %s with wrong signature for support number %d",
opfamilyname,
format_procedure(procform->amproc),
procform->amprocnum)));
result = false;
}
/* Track all valid procedure numbers seen in opfamily */
allfuncs |= ((uint64) 1) << procform->amprocnum;
}
/* Check individual operators */
for (i = 0; i < oprlist->n_members; i++)
{
HeapTuple oprtup = &oprlist->members[i]->tuple;
Form_pg_amop oprform = (Form_pg_amop) GETSTRUCT(oprtup);
/* Check that only allowed strategy numbers exist */
if (oprform->amopstrategy < 1 || oprform->amopstrategy > 63)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" contains operator %s with invalid strategy number %d",
opfamilyname,
format_operator(oprform->amopopr),
oprform->amopstrategy)));
result = false;
}
else
{
/*
* The set of operators supplied varies across BRIN opfamilies.
* Our plan is to identify all operator strategy numbers used in
* the opfamily and then complain about datatype combinations that
* are missing any operator(s). However, consider only numbers
* that appear in some non-cross-type case, since cross-type
* operators may have unique strategies. (This is not a great
* heuristic, in particular an erroneous number used in a
* cross-type operator will not get noticed; but the core BRIN
* opfamilies are messy enough to make it necessary.)
*/
if (oprform->amoplefttype == oprform->amoprighttype)
allops |= ((uint64) 1) << oprform->amopstrategy;
}
/* brin doesn't support ORDER BY operators */
if (oprform->amoppurpose != AMOP_SEARCH ||
OidIsValid(oprform->amopsortfamily))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" contains invalid ORDER BY specification for operator %s",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
/* Check operator signature --- same for all brin strategies */
if (!check_amop_signature(oprform->amopopr, BOOLOID,
oprform->amoplefttype,
oprform->amoprighttype))
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" contains operator %s with wrong signature",
opfamilyname,
format_operator(oprform->amopopr))));
result = false;
}
}
/* Now check for inconsistent groups of operators/functions */
grouplist = identify_opfamily_groups(oprlist, proclist);
opclassgroup = NULL;
foreach(lc, grouplist)
{
OpFamilyOpFuncGroup *thisgroup = (OpFamilyOpFuncGroup *) lfirst(lc);
/* Remember the group exactly matching the test opclass */
if (thisgroup->lefttype == opcintype &&
thisgroup->righttype == opcintype)
opclassgroup = thisgroup;
/*
* Some BRIN opfamilies expect cross-type support functions to exist,
* and some don't. We don't know exactly which are which, so if we
* find a cross-type operator for which there are no support functions
* at all, let it pass. (Don't expect that all operators exist for
* such cross-type cases, either.)
*/
if (thisgroup->functionset == 0 &&
thisgroup->lefttype != thisgroup->righttype)
continue;
/*
* Else complain if there seems to be an incomplete set of either
* operators or support functions for this datatype pair.
*/
if (thisgroup->operatorset != allops)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" is missing operator(s) for types %s and %s",
opfamilyname,
format_type_be(thisgroup->lefttype),
format_type_be(thisgroup->righttype))));
result = false;
}
if (thisgroup->functionset != allfuncs)
{
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("brin operator family \"%s\" is missing support function(s) for types %s and %s",
opfamilyname,
format_type_be(thisgroup->lefttype),
format_type_be(thisgroup->righttype))));
result = false;
}
}
