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path: root/src/backend/catalog/dependency.c
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-rw-r--r--src/backend/catalog/dependency.c816
1 files changed, 1 insertions, 815 deletions
diff --git a/src/backend/catalog/dependency.c b/src/backend/catalog/dependency.c
index 7b8e0246339..ddf199049ef 100644
--- a/src/backend/catalog/dependency.c
+++ b/src/backend/catalog/dependency.c
@@ -15,12 +15,10 @@
#include "postgres.h"
#include "access/htup_details.h"
-#include "access/sysattr.h"
#include "access/xact.h"
#include "catalog/dependency.h"
#include "catalog/heap.h"
#include "catalog/index.h"
-#include "catalog/namespace.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_amop.h"
#include "catalog/pg_amproc.h"
@@ -56,24 +54,18 @@
#include "catalog/pg_type.h"
#include "catalog/pg_user_mapping.h"
#include "commands/comment.h"
-#include "commands/dbcommands.h"
#include "commands/defrem.h"
#include "commands/event_trigger.h"
#include "commands/extension.h"
#include "commands/proclang.h"
#include "commands/schemacmds.h"
#include "commands/seclabel.h"
-#include "commands/tablespace.h"
#include "commands/trigger.h"
#include "commands/typecmds.h"
-#include "foreign/foreign.h"
-#include "miscadmin.h"
#include "nodes/nodeFuncs.h"
#include "parser/parsetree.h"
#include "rewrite/rewriteRemove.h"
#include "storage/lmgr.h"
-#include "utils/acl.h"
-#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/guc.h"
#include "utils/lsyscache.h"
@@ -196,8 +188,6 @@ static bool object_address_present_add_flags(const ObjectAddress *object,
static bool stack_address_present_add_flags(const ObjectAddress *object,
int flags,
ObjectAddressStack *stack);
-static void getRelationDescription(StringInfo buffer, Oid relid);
-static void getOpFamilyDescription(StringInfo buffer, Oid opfid);
/*
@@ -2193,7 +2183,7 @@ getObjectClass(const ObjectAddress *object)
/* only pg_class entries can have nonzero objectSubId */
if (object->classId != RelationRelationId &&
object->objectSubId != 0)
- elog(ERROR, "invalid objectSubId 0 for object class %u",
+ elog(ERROR, "invalid non-zero objectSubId for object class %u",
object->classId);
switch (object->classId)
@@ -2297,807 +2287,3 @@ getObjectClass(const ObjectAddress *object)
elog(ERROR, "unrecognized object class: %u", object->classId);
return OCLASS_CLASS; /* keep compiler quiet */
}
-
-/*
- * getObjectDescription: build an object description for messages
- *
- * The result is a palloc'd string.
- */
-char *
-getObjectDescription(const ObjectAddress *object)
-{
- StringInfoData buffer;
-
- initStringInfo(&buffer);
-
- switch (getObjectClass(object))
- {
- case OCLASS_CLASS:
- getRelationDescription(&buffer, object->objectId);
- if (object->objectSubId != 0)
- appendStringInfo(&buffer, _(" column %s"),
- get_relid_attribute_name(object->objectId,
- object->objectSubId));
- break;
-
- case OCLASS_PROC:
- appendStringInfo(&buffer, _("function %s"),
- format_procedure(object->objectId));
- break;
-
- case OCLASS_TYPE:
- appendStringInfo(&buffer, _("type %s"),
- format_type_be(object->objectId));
- break;
-
- case OCLASS_CAST:
- {
- Relation castDesc;
- ScanKeyData skey[1];
- SysScanDesc rcscan;
- HeapTuple tup;
- Form_pg_cast castForm;
-
- castDesc = heap_open(CastRelationId, AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- rcscan = systable_beginscan(castDesc, CastOidIndexId, true,
- SnapshotNow, 1, skey);
-
- tup = systable_getnext(rcscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for cast %u",
- object->objectId);
-
- castForm = (Form_pg_cast) GETSTRUCT(tup);
-
- appendStringInfo(&buffer, _("cast from %s to %s"),
- format_type_be(castForm->castsource),
- format_type_be(castForm->casttarget));
-
- systable_endscan(rcscan);
- heap_close(castDesc, AccessShareLock);
- break;
- }
-
- case OCLASS_COLLATION:
- {
- HeapTuple collTup;
- Form_pg_collation coll;
-
- collTup = SearchSysCache1(COLLOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(collTup))
- elog(ERROR, "cache lookup failed for collation %u",
- object->objectId);
- coll = (Form_pg_collation) GETSTRUCT(collTup);
- appendStringInfo(&buffer, _("collation %s"),
- NameStr(coll->collname));
- ReleaseSysCache(collTup);
- break;
- }
-
- case OCLASS_CONSTRAINT:
- {
- HeapTuple conTup;
- Form_pg_constraint con;
-
- conTup = SearchSysCache1(CONSTROID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(conTup))
- elog(ERROR, "cache lookup failed for constraint %u",
- object->objectId);
- con = (Form_pg_constraint) GETSTRUCT(conTup);
-
- if (OidIsValid(con->conrelid))
- {
- StringInfoData rel;
-
- initStringInfo(&rel);
- getRelationDescription(&rel, con->conrelid);
- appendStringInfo(&buffer, _("constraint %s on %s"),
- NameStr(con->conname), rel.data);
- pfree(rel.data);
- }
- else
- {
- appendStringInfo(&buffer, _("constraint %s"),
- NameStr(con->conname));
- }
-
- ReleaseSysCache(conTup);
- break;
- }
-
- case OCLASS_CONVERSION:
- {
- HeapTuple conTup;
-
- conTup = SearchSysCache1(CONVOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(conTup))
- elog(ERROR, "cache lookup failed for conversion %u",
- object->objectId);
- appendStringInfo(&buffer, _("conversion %s"),
- NameStr(((Form_pg_conversion) GETSTRUCT(conTup))->conname));
- ReleaseSysCache(conTup);
- break;
- }
-
- case OCLASS_DEFAULT:
- {
- Relation attrdefDesc;
- ScanKeyData skey[1];
- SysScanDesc adscan;
- HeapTuple tup;
- Form_pg_attrdef attrdef;
- ObjectAddress colobject;
-
- attrdefDesc = heap_open(AttrDefaultRelationId, AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- adscan = systable_beginscan(attrdefDesc, AttrDefaultOidIndexId,
- true, SnapshotNow, 1, skey);
-
- tup = systable_getnext(adscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for attrdef %u",
- object->objectId);
-
- attrdef = (Form_pg_attrdef) GETSTRUCT(tup);
-
- colobject.classId = RelationRelationId;
- colobject.objectId = attrdef->adrelid;
- colobject.objectSubId = attrdef->adnum;
-
- appendStringInfo(&buffer, _("default for %s"),
- getObjectDescription(&colobject));
-
- systable_endscan(adscan);
- heap_close(attrdefDesc, AccessShareLock);
- break;
- }
-
- case OCLASS_LANGUAGE:
- {
- HeapTuple langTup;
-
- langTup = SearchSysCache1(LANGOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(langTup))
- elog(ERROR, "cache lookup failed for language %u",
- object->objectId);
- appendStringInfo(&buffer, _("language %s"),
- NameStr(((Form_pg_language) GETSTRUCT(langTup))->lanname));
- ReleaseSysCache(langTup);
- break;
- }
- case OCLASS_LARGEOBJECT:
- appendStringInfo(&buffer, _("large object %u"),
- object->objectId);
- break;
-
- case OCLASS_OPERATOR:
- appendStringInfo(&buffer, _("operator %s"),
- format_operator(object->objectId));
- break;
-
- case OCLASS_OPCLASS:
- {
- HeapTuple opcTup;
- Form_pg_opclass opcForm;
- HeapTuple amTup;
- Form_pg_am amForm;
- char *nspname;
-
- opcTup = SearchSysCache1(CLAOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(opcTup))
- elog(ERROR, "cache lookup failed for opclass %u",
- object->objectId);
- opcForm = (Form_pg_opclass) GETSTRUCT(opcTup);
-
- amTup = SearchSysCache1(AMOID,
- ObjectIdGetDatum(opcForm->opcmethod));
- if (!HeapTupleIsValid(amTup))
- elog(ERROR, "cache lookup failed for access method %u",
- opcForm->opcmethod);
- amForm = (Form_pg_am) GETSTRUCT(amTup);
-
- /* Qualify the name if not visible in search path */
- if (OpclassIsVisible(object->objectId))
- nspname = NULL;
- else
- nspname = get_namespace_name(opcForm->opcnamespace);
-
- appendStringInfo(&buffer, _("operator class %s for access method %s"),
- quote_qualified_identifier(nspname,
- NameStr(opcForm->opcname)),
- NameStr(amForm->amname));
-
- ReleaseSysCache(amTup);
- ReleaseSysCache(opcTup);
- break;
- }
-
- case OCLASS_OPFAMILY:
- getOpFamilyDescription(&buffer, object->objectId);
- break;
-
- case OCLASS_AMOP:
- {
- Relation amopDesc;
- ScanKeyData skey[1];
- SysScanDesc amscan;
- HeapTuple tup;
- Form_pg_amop amopForm;
- StringInfoData opfam;
-
- amopDesc = heap_open(AccessMethodOperatorRelationId,
- AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- amscan = systable_beginscan(amopDesc, AccessMethodOperatorOidIndexId, true,
- SnapshotNow, 1, skey);
-
- tup = systable_getnext(amscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for amop entry %u",
- object->objectId);
-
- amopForm = (Form_pg_amop) GETSTRUCT(tup);
-
- initStringInfo(&opfam);
- getOpFamilyDescription(&opfam, amopForm->amopfamily);
-
- /*------
- translator: %d is the operator strategy (a number), the
- first two %s's are data type names, the third %s is the
- description of the operator family, and the last %s is the
- textual form of the operator with arguments. */
- appendStringInfo(&buffer, _("operator %d (%s, %s) of %s: %s"),
- amopForm->amopstrategy,
- format_type_be(amopForm->amoplefttype),
- format_type_be(amopForm->amoprighttype),
- opfam.data,
- format_operator(amopForm->amopopr));
-
- pfree(opfam.data);
-
- systable_endscan(amscan);
- heap_close(amopDesc, AccessShareLock);
- break;
- }
-
- case OCLASS_AMPROC:
- {
- Relation amprocDesc;
- ScanKeyData skey[1];
- SysScanDesc amscan;
- HeapTuple tup;
- Form_pg_amproc amprocForm;
- StringInfoData opfam;
-
- amprocDesc = heap_open(AccessMethodProcedureRelationId,
- AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- amscan = systable_beginscan(amprocDesc, AccessMethodProcedureOidIndexId, true,
- SnapshotNow, 1, skey);
-
- tup = systable_getnext(amscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for amproc entry %u",
- object->objectId);
-
- amprocForm = (Form_pg_amproc) GETSTRUCT(tup);
-
- initStringInfo(&opfam);
- getOpFamilyDescription(&opfam, amprocForm->amprocfamily);
-
- /*------
- translator: %d is the function number, the first two %s's
- are data type names, the third %s is the description of the
- operator family, and the last %s is the textual form of the
- function with arguments. */
- appendStringInfo(&buffer, _("function %d (%s, %s) of %s: %s"),
- amprocForm->amprocnum,
- format_type_be(amprocForm->amproclefttype),
- format_type_be(amprocForm->amprocrighttype),
- opfam.data,
- format_procedure(amprocForm->amproc));
-
- pfree(opfam.data);
-
- systable_endscan(amscan);
- heap_close(amprocDesc, AccessShareLock);
- break;
- }
-
- case OCLASS_REWRITE:
- {
- Relation ruleDesc;
- ScanKeyData skey[1];
- SysScanDesc rcscan;
- HeapTuple tup;
- Form_pg_rewrite rule;
-
- ruleDesc = heap_open(RewriteRelationId, AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- rcscan = systable_beginscan(ruleDesc, RewriteOidIndexId, true,
- SnapshotNow, 1, skey);
-
- tup = systable_getnext(rcscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for rule %u",
- object->objectId);
-
- rule = (Form_pg_rewrite) GETSTRUCT(tup);
-
- appendStringInfo(&buffer, _("rule %s on "),
- NameStr(rule->rulename));
- getRelationDescription(&buffer, rule->ev_class);
-
- systable_endscan(rcscan);
- heap_close(ruleDesc, AccessShareLock);
- break;
- }
-
- case OCLASS_TRIGGER:
- {
- Relation trigDesc;
- ScanKeyData skey[1];
- SysScanDesc tgscan;
- HeapTuple tup;
- Form_pg_trigger trig;
-
- trigDesc = heap_open(TriggerRelationId, AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- tgscan = systable_beginscan(trigDesc, TriggerOidIndexId, true,
- SnapshotNow, 1, skey);
-
- tup = systable_getnext(tgscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for trigger %u",
- object->objectId);
-
- trig = (Form_pg_trigger) GETSTRUCT(tup);
-
- appendStringInfo(&buffer, _("trigger %s on "),
- NameStr(trig->tgname));
- getRelationDescription(&buffer, trig->tgrelid);
-
- systable_endscan(tgscan);
- heap_close(trigDesc, AccessShareLock);
- break;
- }
-
- case OCLASS_SCHEMA:
- {
- char *nspname;
-
- nspname = get_namespace_name(object->objectId);
- if (!nspname)
- elog(ERROR, "cache lookup failed for namespace %u",
- object->objectId);
- appendStringInfo(&buffer, _("schema %s"), nspname);
- break;
- }
-
- case OCLASS_TSPARSER:
- {
- HeapTuple tup;
-
- tup = SearchSysCache1(TSPARSEROID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "cache lookup failed for text search parser %u",
- object->objectId);
- appendStringInfo(&buffer, _("text search parser %s"),
- NameStr(((Form_pg_ts_parser) GETSTRUCT(tup))->prsname));
- ReleaseSysCache(tup);
- break;
- }
-
- case OCLASS_TSDICT:
- {
- HeapTuple tup;
-
- tup = SearchSysCache1(TSDICTOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "cache lookup failed for text search dictionary %u",
- object->objectId);
- appendStringInfo(&buffer, _("text search dictionary %s"),
- NameStr(((Form_pg_ts_dict) GETSTRUCT(tup))->dictname));
- ReleaseSysCache(tup);
- break;
- }
-
- case OCLASS_TSTEMPLATE:
- {
- HeapTuple tup;
-
- tup = SearchSysCache1(TSTEMPLATEOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "cache lookup failed for text search template %u",
- object->objectId);
- appendStringInfo(&buffer, _("text search template %s"),
- NameStr(((Form_pg_ts_template) GETSTRUCT(tup))->tmplname));
- ReleaseSysCache(tup);
- break;
- }
-
- case OCLASS_TSCONFIG:
- {
- HeapTuple tup;
-
- tup = SearchSysCache1(TSCONFIGOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "cache lookup failed for text search configuration %u",
- object->objectId);
- appendStringInfo(&buffer, _("text search configuration %s"),
- NameStr(((Form_pg_ts_config) GETSTRUCT(tup))->cfgname));
- ReleaseSysCache(tup);
- break;
- }
-
- case OCLASS_ROLE:
- {
- appendStringInfo(&buffer, _("role %s"),
- GetUserNameFromId(object->objectId));
- break;
- }
-
- case OCLASS_DATABASE:
- {
- char *datname;
-
- datname = get_database_name(object->objectId);
- if (!datname)
- elog(ERROR, "cache lookup failed for database %u",
- object->objectId);
- appendStringInfo(&buffer, _("database %s"), datname);
- break;
- }
-
- case OCLASS_TBLSPACE:
- {
- char *tblspace;
-
- tblspace = get_tablespace_name(object->objectId);
- if (!tblspace)
- elog(ERROR, "cache lookup failed for tablespace %u",
- object->objectId);
- appendStringInfo(&buffer, _("tablespace %s"), tblspace);
- break;
- }
-
- case OCLASS_FDW:
- {
- ForeignDataWrapper *fdw;
-
- fdw = GetForeignDataWrapper(object->objectId);
- appendStringInfo(&buffer, _("foreign-data wrapper %s"), fdw->fdwname);
- break;
- }
-
- case OCLASS_FOREIGN_SERVER:
- {
- ForeignServer *srv;
-
- srv = GetForeignServer(object->objectId);
- appendStringInfo(&buffer, _("server %s"), srv->servername);
- break;
- }
-
- case OCLASS_USER_MAPPING:
- {
- HeapTuple tup;
- Oid useid;
- char *usename;
-
- tup = SearchSysCache1(USERMAPPINGOID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "cache lookup failed for user mapping %u",
- object->objectId);
-
- useid = ((Form_pg_user_mapping) GETSTRUCT(tup))->umuser;
-
- ReleaseSysCache(tup);
-
- if (OidIsValid(useid))
- usename = GetUserNameFromId(useid);
- else
- usename = "public";
-
- appendStringInfo(&buffer, _("user mapping for %s"), usename);
- break;
- }
-
- case OCLASS_DEFACL:
- {
- Relation defaclrel;
- ScanKeyData skey[1];
- SysScanDesc rcscan;
- HeapTuple tup;
- Form_pg_default_acl defacl;
-
- defaclrel = heap_open(DefaultAclRelationId, AccessShareLock);
-
- ScanKeyInit(&skey[0],
- ObjectIdAttributeNumber,
- BTEqualStrategyNumber, F_OIDEQ,
- ObjectIdGetDatum(object->objectId));
-
- rcscan = systable_beginscan(defaclrel, DefaultAclOidIndexId,
- true, SnapshotNow, 1, skey);
-
- tup = systable_getnext(rcscan);
-
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "could not find tuple for default ACL %u",
- object->objectId);
-
- defacl = (Form_pg_default_acl) GETSTRUCT(tup);
-
- switch (defacl->defaclobjtype)
- {
- case DEFACLOBJ_RELATION:
- appendStringInfo(&buffer,
- _("default privileges on new relations belonging to role %s"),
- GetUserNameFromId(defacl->defaclrole));
- break;
- case DEFACLOBJ_SEQUENCE:
- appendStringInfo(&buffer,
- _("default privileges on new sequences belonging to role %s"),
- GetUserNameFromId(defacl->defaclrole));
- break;
- case DEFACLOBJ_FUNCTION:
- appendStringInfo(&buffer,
- _("default privileges on new functions belonging to role %s"),
- GetUserNameFromId(defacl->defaclrole));
- break;
- case DEFACLOBJ_TYPE:
- appendStringInfo(&buffer,
- _("default privileges on new types belonging to role %s"),
- GetUserNameFromId(defacl->defaclrole));
- break;
- default:
- /* shouldn't get here */
- appendStringInfo(&buffer,
- _("default privileges belonging to role %s"),
- GetUserNameFromId(defacl->defaclrole));
- break;
- }
-
- if (OidIsValid(defacl->defaclnamespace))
- {
- appendStringInfo(&buffer,
- _(" in schema %s"),
- get_namespace_name(defacl->defaclnamespace));
- }
-
- systable_endscan(rcscan);
- heap_close(defaclrel, AccessShareLock);
- break;
- }
-
- case OCLASS_EXTENSION:
- {
- char *extname;
-
- extname = get_extension_name(object->objectId);
- if (!extname)
- elog(ERROR, "cache lookup failed for extension %u",
- object->objectId);
- appendStringInfo(&buffer, _("extension %s"), extname);
- break;
- }
-
- case OCLASS_EVENT_TRIGGER:
- {
- HeapTuple tup;
-
- tup = SearchSysCache1(EVENTTRIGGEROID,
- ObjectIdGetDatum(object->objectId));
- if (!HeapTupleIsValid(tup))
- elog(ERROR, "cache lookup failed for event trigger %u",
- object->objectId);
- appendStringInfo(&buffer, _("event trigger %s"),
- NameStr(((Form_pg_event_trigger) GETSTRUCT(tup))->evtname));
- ReleaseSysCache(tup);
- break;
- }
-
- default:
- appendStringInfo(&buffer, "unrecognized object %u %u %d",
- object->classId,
- object->objectId,
- object->objectSubId);
- break;
- }
-
- return buffer.data;
-}
-
-/*
- * getObjectDescriptionOids: as above, except the object is specified by Oids
- */
-char *
-getObjectDescriptionOids(Oid classid, Oid objid)
-{
- ObjectAddress address;
-
- address.classId = classid;
- address.objectId = objid;
- address.objectSubId = 0;
-
- return getObjectDescription(&address);
-}
-
-/*
- * subroutine for getObjectDescription: describe a relation
- */
-static void
-getRelationDescription(StringInfo buffer, Oid relid)
-{
- HeapTuple relTup;
- Form_pg_class relForm;
- char *nspname;
- char *relname;
-
- relTup = SearchSysCache1(RELOID,
- ObjectIdGetDatum(relid));
- if (!HeapTupleIsValid(relTup))
- elog(ERROR, "cache lookup failed for relation %u", relid);
- relForm = (Form_pg_class) GETSTRUCT(relTup);
-
- /* Qualify the name if not visible in search path */
- if (RelationIsVisible(relid))
- nspname = NULL;
- else
- nspname = get_namespace_name(relForm->relnamespace);
-
- relname = quote_qualified_identifier(nspname, NameStr(relForm->relname));
-
- switch (relForm->relkind)
- {
- case RELKIND_RELATION:
- appendStringInfo(buffer, _("table %s"),
- relname);
- break;
- case RELKIND_INDEX:
- appendStringInfo(buffer, _("index %s"),
- relname);
- break;
- case RELKIND_SEQUENCE:
- appendStringInfo(buffer, _("sequence %s"),
- relname);
- break;
- case RELKIND_TOASTVALUE:
- appendStringInfo(buffer, _("toast table %s"),
- relname);
- break;
- case RELKIND_VIEW:
- appendStringInfo(buffer, _("view %s"),
- relname);
- break;
- case RELKIND_MATVIEW:
- appendStringInfo(buffer, _("materialized view %s"),
- relname);
- break;
- case RELKIND_COMPOSITE_TYPE:
- appendStringInfo(buffer, _("composite type %s"),
- relname);
- break;
- case RELKIND_FOREIGN_TABLE:
- appendStringInfo(buffer, _("foreign table %s"),
- relname);
- break;
- default:
- /* shouldn't get here */
- appendStringInfo(buffer, _("relation %s"),
- relname);
- break;
- }
-
- ReleaseSysCache(relTup);
-}
-
-/*
- * subroutine for getObjectDescription: describe an operator family
- */
-static void
-getOpFamilyDescription(StringInfo buffer, Oid opfid)
-{
- HeapTuple opfTup;
- Form_pg_opfamily opfForm;
- HeapTuple amTup;
- Form_pg_am amForm;
- char *nspname;
-
- opfTup = SearchSysCache1(OPFAMILYOID, ObjectIdGetDatum(opfid));
- if (!HeapTupleIsValid(opfTup))
- elog(ERROR, "cache lookup failed for opfamily %u", opfid);
- opfForm = (Form_pg_opfamily) GETSTRUCT(opfTup);
-
- amTup = SearchSysCache1(AMOID, ObjectIdGetDatum(opfForm->opfmethod));
- if (!HeapTupleIsValid(amTup))
- elog(ERROR, "cache lookup failed for access method %u",
- opfForm->opfmethod);
- amForm = (Form_pg_am) GETSTRUCT(amTup);
-
- /* Qualify the name if not visible in search path */
- if (OpfamilyIsVisible(opfid))
- nspname = NULL;
- else
- nspname = get_namespace_name(opfForm->opfnamespace);
-
- appendStringInfo(buffer, _("operator family %s for access method %s"),
- quote_qualified_identifier(nspname,
- NameStr(opfForm->opfname)),
- NameStr(amForm->amname));
-
- ReleaseSysCache(amTup);
- ReleaseSysCache(opfTup);
-}
-
-/*
- * SQL-level callable version of getObjectDescription
- */
-Datum
-pg_describe_object(PG_FUNCTION_ARGS)
-{
- Oid classid = PG_GETARG_OID(0);
- Oid objid = PG_GETARG_OID(1);
- int32 subobjid = PG_GETARG_INT32(2);
- char *description = NULL;
- ObjectAddress address;
-
- /* for "pinned" items in pg_depend, return null */
- if (!OidIsValid(classid) && !OidIsValid(objid))
- PG_RETURN_NULL();
-
- address.classId = classid;
- address.objectId = objid;
- address.objectSubId = subobjid;
-
- description = getObjectDescription(&address);
- PG_RETURN_TEXT_P(cstring_to_text(description));
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-07 20:43:26 +0000