// *****************************************************************************
// * *
// * Function: CmpSeabaseDDL::giveSeabaseSchema *
// * *
// * Implements the GIVE SCHEMA command. *
// * *
// *****************************************************************************
// * *
// * Parameters: *
// * *
// * <giveSchemaNode> StmtDDLGiveSchema * In *
// * is a pointer to a create schema parser node. *
// * *
// * <currentCatalogName> NAString & In *
// * is the name of the current catalog. *
// * *
// *****************************************************************************
void CmpSeabaseDDL::giveSeabaseSchema(
StmtDDLGiveSchema * giveSchemaNode,
NAString & currentCatalogName)
{
ComDropBehavior dropBehavior = giveSchemaNode->getDropBehavior();
NAString catalogName = giveSchemaNode->getCatalogName();
NAString schemaName = giveSchemaNode->getSchemaName();
if (catalogName.isNull())
catalogName = currentCatalogName;
ExeCliInterface cliInterface(STMTHEAP, NULL, NULL,
CmpCommon::context()->sqlSession()->getParentQid());
Int32 objectOwnerID = 0;
Int32 schemaOwnerID = 0;
ComObjectType objectType;
Int64 schemaUID = getObjectTypeandOwner(&cliInterface,catalogName.data(),
schemaName.data(),SEABASE_SCHEMA_OBJECTNAME,
objectType,schemaOwnerID);
if (schemaUID == -1)
{
// A Trafodion schema does not exist if the schema object row is not
// present: CATALOG-NAME.SCHEMA-NAME.__SCHEMA__.
*CmpCommon::diags() << DgSqlCode(-CAT_SCHEMA_DOES_NOT_EXIST_ERROR)
<< DgSchemaName(schemaName.data());
return;
}
// *****************************************************************************
// * *
// * A schema owner can give their own schema to another authID, but they *
// * cannot give the objects in a shared schema to another authID. Only *
// * DB__ROOT or a user with the ALTER_SCHEMA privilege can change the owners *
// * of objects in a shared schema. So if the schema is private, or if only *
// * the schema is being given, we do standard authentication checking. But *
// * if giving all the objects in a shared schema, we change the check ID to *
// * the default user to force the ALTER_SCHEMA privilege check. *
// * *
// *****************************************************************************
int32_t checkID = schemaOwnerID;
if (objectType == COM_SHARED_SCHEMA_OBJECT &&
dropBehavior == COM_CASCADE_DROP_BEHAVIOR)
checkID = NA_UserIdDefault;
if (!isDDLOperationAuthorized(SQLOperation::ALTER_SCHEMA,checkID,checkID))
{
*CmpCommon::diags() << DgSqlCode(-CAT_NOT_AUTHORIZED);
return;
}
ComObjectName objName(catalogName,schemaName,NAString("dummy"),COM_TABLE_NAME,TRUE);
if (isSeabaseReservedSchema(objName) &&
!Get_SqlParser_Flags(INTERNAL_QUERY_FROM_EXEUTIL))
{
*CmpCommon::diags() << DgSqlCode(-CAT_USER_CANNOT_DROP_SMD_SCHEMA)
<< DgSchemaName(schemaName.data());
return;
}
bool isVolatile = (memcmp(schemaName.data(),"VOLATILE_SCHEMA",strlen("VOLATILE_SCHEMA")) == 0);
// Can't give a schema whose name begins with VOLATILE_SCHEMA.
if (isVolatile)
{
*CmpCommon::diags() << DgSqlCode(-CAT_RESERVED_METADATA_SCHEMA_NAME)
<< DgTableName(schemaName);
return;
}
int32_t newOwnerID = -1;
if (ComUser::getAuthIDFromAuthName(giveSchemaNode->getAuthID().data(),
newOwnerID) != 0)
{
*CmpCommon::diags() << DgSqlCode(-CAT_AUTHID_DOES_NOT_EXIST_ERROR)
<< DgString0(giveSchemaNode->getAuthID().data());
return;
}
// *****************************************************************************
// * *
// * Drop behavior is only relevant for shared schemas. For shared schemas, *
// * ownership of the schema OR the schema and all its objects may be given to *
// * another authorization ID. For private schemas, all objects are owned by *
// * the schema owner, so the drop behavior is always CASCADE. *
// * *
// * NOTE: The syntax for drop behavior always defaults to RESTRICT; for *
// * private schemas this is simply ignored, as opposed to requiring *
// * users to always specify CASCASE. *
// * *
// *****************************************************************************
Lng32 cliRC = 0;
char buf[4000];
if (objectType == COM_SHARED_SCHEMA_OBJECT &&
dropBehavior == COM_RESTRICT_DROP_BEHAVIOR)
{
str_sprintf(buf,"UPDATE %s.\"%s\".%s "
"SET object_owner = %d "
"WHERE object_UID = %Ld",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
newOwnerID,schemaUID);
cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0)
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
//
// At this point, we are giving all objects in the schema (as well as the
// schema itself) to the new authorization ID. If authentication is enabled,
// update the privileges first.
//
if (isAuthorizationEnabled())
{
int32_t rc = transferObjectPrivs(getSystemCatalog(),catalogName.data(),
schemaName.data(),newOwnerID,
giveSchemaNode->getAuthID().data());
if (rc != 0)
{
if (CmpCommon::diags()->getNumber(DgSqlCode::ERROR_) == 0)
{
//TODO: add error
}
return;
}
}
// Now update the object owner for all objects in the schema.
str_sprintf(buf,"UPDATE %s.\"%s\".%s "
"SET object_owner = %d "
"WHERE catalog_name = '%s' AND schema_name = '%s'",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
newOwnerID,catalogName.data(),schemaName.data());
cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
// Verify all objects in the schema have been given to the new owner.
str_sprintf(buf,"SELECT COUNT(*) "
"FROM %s.\"%s\".%s "
"WHERE catalog_name = '%s' AND schema_name = '%s' AND "
"object_name <> '"SEABASE_SCHEMA_OBJECTNAME"' AND "
"object_owner <> %d "
"FOR READ COMMITTED ACCESS",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
catalogName.data(),schemaName.data(),newOwnerID);
int32_t length = 0;
int32_t rowCount = 0;
cliRC = cliInterface.executeImmediate(buf,(char*)&rowCount,&length,NULL);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
if (rowCount > 0)
{
SEABASEDDL_INTERNAL_ERROR("Not all objects in schema were given");
return;
}
}
// *****************************************************************************
// * *
// * Function: CmpSeabaseDDL::dropSeabaseSchema *
// * *
// * Implements the DROP SCHEMA command. *
// * *
// *****************************************************************************
// * *
// * Parameters: *
// * *
// * <dropSchemaNode> StmtDDLDropSchema * In *
// * is a pointer to a create schema parser node. *
// * *
// *****************************************************************************
void CmpSeabaseDDL::dropSeabaseSchema(StmtDDLDropSchema * dropSchemaNode)
{
Lng32 cliRC = 0;
ComSchemaName schemaName(dropSchemaNode->getSchemaName());
NAString catName = schemaName.getCatalogNamePartAsAnsiString();
ComAnsiNamePart schNameAsComAnsi = schemaName.getSchemaNamePart();
NAString schName = schNameAsComAnsi.getInternalName();
ExeCliInterface cliInterface(STMTHEAP, NULL, NULL,
CmpCommon::context()->sqlSession()->getParentQid());
Int32 objectOwnerID = 0;
Int32 schemaOwnerID = 0;
ComObjectType objectType;
Int64 schemaUID = getObjectTypeandOwner(&cliInterface,catName.data(),schName.data(),
SEABASE_SCHEMA_OBJECTNAME,objectType,schemaOwnerID);
// if schemaUID == -1, then either the schema does not exist or an unexpected error occurred
if (schemaUID == -1)
{
// If an error occurred, return
if (CmpCommon::diags()->getNumber(DgSqlCode::ERROR_) > 0)
return;
// schema does not exist and IF EXISTS specified, then ignore and continue
if (dropSchemaNode->dropIfExists())
return;
// A Trafodion schema does not exist if the schema object row is not
// present: CATALOG-NAME.SCHEMA-NAME.__SCHEMA__.
*CmpCommon::diags() << DgSqlCode(-CAT_SCHEMA_DOES_NOT_EXIST_ERROR)
<< DgSchemaName(schemaName.getExternalName().data());
return;
}
if (!isDDLOperationAuthorized(SQLOperation::DROP_SCHEMA,
schemaOwnerID,schemaOwnerID))
{
*CmpCommon::diags() << DgSqlCode(-CAT_NOT_AUTHORIZED);
return;
}
ComObjectName objName(catName,schName,NAString("dummy"),COM_TABLE_NAME,TRUE);
if ((isSeabaseReservedSchema(objName) ||
(schName == SEABASE_SYSTEM_SCHEMA)) &&
!Get_SqlParser_Flags(INTERNAL_QUERY_FROM_EXEUTIL))
{
*CmpCommon::diags() << DgSqlCode(-CAT_USER_CANNOT_DROP_SMD_SCHEMA)
<< DgSchemaName(schemaName.getExternalName().data());
return;
}
bool isVolatile = (memcmp(schName.data(),"VOLATILE_SCHEMA",strlen("VOLATILE_SCHEMA")) == 0);
// Can't drop a schema whose name begins with VOLATILE_SCHEMA unless the
// keyword VOLATILE was specified in the DROP SCHEMA command.
if (isVolatile && !dropSchemaNode->isVolatile())
{
*CmpCommon::diags() << DgSqlCode(-CAT_RESERVED_METADATA_SCHEMA_NAME)
<< DgTableName(schName);
return;
}
// Get a list of all objects in the schema, excluding the schema object itself.
char query[4000];
str_sprintf(query,"SELECT TRIM(object_name), TRIM(object_type) "
"FROM %s.\"%s\".%s "
"WHERE catalog_name = '%s' AND schema_name = '%s' AND "
"object_name <> '"SEABASE_SCHEMA_OBJECTNAME"'"
"FOR READ COMMITTED ACCESS",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
(char*)catName.data(),(char*)schName.data());
Queue * objectsQueue = NULL;
cliRC = cliInterface.fetchAllRows(objectsQueue, query, 0, FALSE, FALSE, TRUE);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
objectsQueue->position();
if ((dropSchemaNode->getDropBehavior() == COM_RESTRICT_DROP_BEHAVIOR) &&
(objectsQueue->numEntries() > 0))
{
OutputInfo * oi = (OutputInfo*)objectsQueue->getCurr();
*CmpCommon::diags() << DgSqlCode(-CAT_SCHEMA_IS_NOT_EMPTY)
<< DgTableName(oi->get(0));
return;
}
bool someObjectsCouldNotBeDropped = false;
// Drop libraries, procedures (SPJs), UDFs (functions), and views
objectsQueue->position();
for (int idx = 0; idx < objectsQueue->numEntries(); idx++)
{
OutputInfo * vi = (OutputInfo*)objectsQueue->getNext();
char * objName = vi->get(0);
NAString objectTypeLit = vi->get(1);
ComObjectType objectType = PrivMgr::ObjectLitToEnum(objectTypeLit.data());
char buf[1000];
NAString objectTypeString;
NAString cascade = " ";
switch (objectType)
{
// These object types are handled later and can be ignored for now.
case COM_BASE_TABLE_OBJECT:
case COM_INDEX_OBJECT:
case COM_CHECK_CONSTRAINT_OBJECT:
case COM_NOT_NULL_CONSTRAINT_OBJECT:
case COM_PRIMARY_KEY_CONSTRAINT_OBJECT:
case COM_REFERENTIAL_CONSTRAINT_OBJECT:
case COM_SEQUENCE_GENERATOR_OBJECT:
case COM_UNIQUE_CONSTRAINT_OBJECT:
{
continue;
}
case COM_LIBRARY_OBJECT:
{
objectTypeString = "LIBRARY";
cascade = "CASCADE";
break;
}
case COM_STORED_PROCEDURE_OBJECT:
{
objectTypeString = "PROCEDURE";
break;
}
case COM_USER_DEFINED_ROUTINE_OBJECT:
{
objectTypeString = "FUNCTION";
cascade = "CASCADE";
break;
}
case COM_VIEW_OBJECT:
{
objectTypeString = "VIEW";
cascade = "CASCADE";
break;
}
// These object types should not be seen.
case COM_MV_OBJECT:
case COM_MVRG_OBJECT:
case COM_TRIGGER_OBJECT:
case COM_LOB_TABLE_OBJECT:
case COM_TRIGGER_TABLE_OBJECT:
case COM_SYNONYM_OBJECT:
case COM_PRIVATE_SCHEMA_OBJECT:
case COM_SHARED_SCHEMA_OBJECT:
case COM_EXCEPTION_TABLE_OBJECT:
case COM_LOCK_OBJECT:
case COM_MODULE_OBJECT:
default:
SEABASEDDL_INTERNAL_ERROR("Unrecognized object type in schema");
return;
}
str_sprintf(buf, "drop %s \"%s\".\"%s\".\"%s\" %s",
objectTypeString.data(),(char*)catName.data(),(char*)schName.data(),
objName,cascade.data());
cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0 && cliRC != -CAT_OBJECT_DOES_NOT_EXIST_IN_TRAFODION)
someObjectsCouldNotBeDropped = true;
}
// Drop all tables in the schema. This will also drop any associated constraints.
// Drop of histogram tables is deferred.
bool histExists = false;
objectsQueue->position();
for (int idx = 0; idx < objectsQueue->numEntries(); idx++)
{
OutputInfo * vi = (OutputInfo*)objectsQueue->getNext();
NAString objName = vi->get(0);
NAString objType = vi->get(1);
// drop user objects first
if (objType == COM_BASE_TABLE_OBJECT_LIT)
{
if (!(objName == HBASE_HIST_NAME || objName == HBASE_HISTINT_NAME))
{
if (dropOneTable(cliInterface,(char*)catName.data(),
(char*)schName.data(),(char*)objName.data(),
isVolatile))
someObjectsCouldNotBeDropped = true;
}
else
histExists = true;
}
}
// Drop any remaining indexes.
str_sprintf(query,"SELECT TRIM(object_name), TRIM(object_type) "
"FROM %s.\"%s\".%s "
"WHERE catalog_name = '%s' AND "
" schema_name = '%s' AND "
" object_type = '%s' "
"FOR READ COMMITTED ACCESS ",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
(char*)catName.data(),(char*)schName.data(),
COM_INDEX_OBJECT_LIT);
cliRC = cliInterface.fetchAllRows(objectsQueue,query,0,FALSE,FALSE,TRUE);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
objectsQueue->position();
for (int idx = 0; idx < objectsQueue->numEntries(); idx++)
{
OutputInfo * vi = (OutputInfo*)objectsQueue->getNext();
char * objName = vi->get(0);
NAString objType = vi->get(1);
if (objType == COM_INDEX_OBJECT_LIT)
{
char buf [1000];
str_sprintf(buf, "DROP INDEX \"%s\".\"%s\".\"%s\" CASCADE",
(char*)catName.data(), (char*)schName.data(), objName);
cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0 && cliRC != -CAT_OBJECT_DOES_NOT_EXIST_IN_TRAFODION)
someObjectsCouldNotBeDropped = true;
}
}
// Drop any remaining sequences.
str_sprintf(query,"SELECT TRIM(object_name), TRIM(object_type) "
"FROM %s.\"%s\".%s "
"WHERE catalog_name = '%s' AND "
" schema_name = '%s' AND "
" object_type = '%s' "
"FOR READ COMMITTED ACCESS ",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
(char*)catName.data(),(char*)schName.data(),
COM_SEQUENCE_GENERATOR_OBJECT_LIT);
cliRC = cliInterface.fetchAllRows(objectsQueue,query,0,FALSE,FALSE,TRUE);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
objectsQueue->position();
for (int idx = 0; idx < objectsQueue->numEntries(); idx++)
{
OutputInfo * vi = (OutputInfo*)objectsQueue->getNext();
char * objName = vi->get(0);
NAString objType = vi->get(1);
if (objType == COM_SEQUENCE_GENERATOR_OBJECT_LIT)
{
char buf [1000];
str_sprintf(buf, "DROP SEQUENCE \"%s\".\"%s\".\"%s\"",
(char*)catName.data(), (char*)schName.data(), objName);
cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0 && cliRC != -CAT_OBJECT_DOES_NOT_EXIST_IN_TRAFODION)
someObjectsCouldNotBeDropped = true;
}
}
// For volatile schemas, sometimes only the objects get dropped.
// If the dropObjectsOnly flag is set, just exit now, we are done.
if (dropSchemaNode->dropObjectsOnly())
return;
// Now drop any histogram objects
if (histExists)
{
if (dropOneTable(cliInterface,(char*)catName.data(),(char*)schName.data(),
(char*)HBASE_HISTINT_NAME,false))
someObjectsCouldNotBeDropped = true;
if (dropOneTable(cliInterface,(char*)catName.data(),(char*)schName.data(),
(char*)HBASE_HIST_NAME,false))
someObjectsCouldNotBeDropped = true;
}
if (someObjectsCouldNotBeDropped)
{
CmpCommon::diags()->clear();
*CmpCommon::diags() << DgSqlCode(-CAT_UNABLE_TO_DROP_SCHEMA)
<< DgSchemaName(catName + "." + schName);
return;
}
// Verify all objects in the schema have been dropped.
str_sprintf(query,"SELECT COUNT(*) "
"FROM %s.\"%s\".%s "
"WHERE catalog_name = '%s' AND schema_name = '%s' AND "
"object_name <> '"SEABASE_SCHEMA_OBJECTNAME"'"
"FOR READ COMMITTED ACCESS",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
(char*)catName.data(),(char*)schName.data());
int32_t length = 0;
int32_t rowCount = 0;
cliRC = cliInterface.executeImmediate(query,(char*)&rowCount,&length,NULL);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return;
}
if (rowCount > 0)
{
CmpCommon::diags()->clear();
*CmpCommon::diags() << DgSqlCode(-CAT_UNABLE_TO_DROP_SCHEMA)
<< DgSchemaName(catName + "." + schName);
return;
}
// After all objects in the schema have been dropped, drop the schema object itself.
char buf [1000];
str_sprintf(buf,"DELETE FROM %s.\"%s\".%s "
"WHERE CATALOG_NAME = '%s' AND SCHEMA_NAME = '%s' AND "
"OBJECT_NAME = '"SEABASE_SCHEMA_OBJECTNAME"'",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
(char*)catName.data(),(char*)schName.data());
cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0)
*CmpCommon::diags() << DgSqlCode(-CAT_UNABLE_TO_DROP_SCHEMA)
<< DgSchemaName(catName + "." + schName);
}
void CmpSeabaseDDL::dropSeabaseView(
StmtDDLDropView * dropViewNode,
NAString &currCatName, NAString &currSchName)
{
Lng32 cliRC = 0;
Lng32 retcode = 0;
const NAString &tabName = dropViewNode->getViewName();
ComObjectName viewName(tabName);
ComAnsiNamePart currCatAnsiName(currCatName);
ComAnsiNamePart currSchAnsiName(currSchName);
viewName.applyDefaults(currCatAnsiName, currSchAnsiName);
const NAString catalogNamePart = viewName.getCatalogNamePartAsAnsiString();
const NAString schemaNamePart = viewName.getSchemaNamePartAsAnsiString(TRUE);
const NAString objectNamePart = viewName.getObjectNamePartAsAnsiString(TRUE);
const NAString extViewName = viewName.getExternalName(TRUE);
ExeCliInterface cliInterface(STMTHEAP, NULL, NULL,
CmpCommon::context()->sqlSession()->getParentQid());
ExpHbaseInterface * ehi = allocEHI();
if (ehi == NULL)
return;
if ((isSeabaseReservedSchema(viewName)) &&
(!Get_SqlParser_Flags(INTERNAL_QUERY_FROM_EXEUTIL)))
{
*CmpCommon::diags() << DgSqlCode(-1119)
<< DgTableName(extViewName);
deallocEHI(ehi);
processReturn();
return;
}
retcode = existsInSeabaseMDTable(&cliInterface,
catalogNamePart, schemaNamePart, objectNamePart,
COM_VIEW_OBJECT, TRUE, FALSE);
if (retcode < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
if (retcode == 0) // does not exist
{
*CmpCommon::diags() << DgSqlCode(-1389)
<< DgString0(extViewName);
deallocEHI(ehi);
processReturn();
return;
}
Int32 objectOwnerID = 0;
Int32 schemaOwnerID = 0;
Int64 objUID = getObjectUIDandOwners(&cliInterface,
catalogNamePart.data(), schemaNamePart.data(),
objectNamePart.data(),
COM_VIEW_OBJECT,
objectOwnerID,schemaOwnerID);
if (objUID < 0 || objectOwnerID == 0)
{
if (CmpCommon::diags()->getNumber(DgSqlCode::ERROR_) == 0)
SEABASEDDL_INTERNAL_ERROR("getting object UID and owner for drop view");
deallocEHI(ehi);
processReturn();
return;
}
// Verify user can perform operation
if (!isDDLOperationAuthorized(SQLOperation::DROP_VIEW,objectOwnerID,schemaOwnerID))
{
*CmpCommon::diags() << DgSqlCode(-CAT_NOT_AUTHORIZED);
deallocEHI(ehi);
processReturn ();
return;
}
Queue * usingViewsQueue = NULL;
if (dropViewNode->getDropBehavior() == COM_RESTRICT_DROP_BEHAVIOR)
{
NAString usingObjName;
cliRC = getUsingObject(&cliInterface, objUID, usingObjName);
if (cliRC < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
if (cliRC != 100) // found an object
{
*CmpCommon::diags() << DgSqlCode(-1047)
<< DgTableName(usingObjName);
deallocEHI(ehi);
processReturn();
return;
}
}
else if (dropViewNode->getDropBehavior() == COM_CASCADE_DROP_BEHAVIOR)
{
cliRC = getUsingViews(&cliInterface, objUID, usingViewsQueue);
if (cliRC < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
}
// get the list of all tables referenced by the view. Save this list so
// referenced tables can be removed from cache later
NAList<objectRefdByMe> tablesRefdList;
short status = getListOfReferencedTables(&cliInterface, objUID, tablesRefdList);
if (usingViewsQueue)
{
usingViewsQueue->position();
for (int idx = 0; idx < usingViewsQueue->numEntries(); idx++)
{
OutputInfo * vi = (OutputInfo*)usingViewsQueue->getNext();
char * viewName = vi->get(0);
if (dropSeabaseObject(ehi, viewName,
currCatName, currSchName, COM_VIEW_OBJECT))
{
deallocEHI(ehi);
processReturn();
return;
}
}
}
if (dropSeabaseObject(ehi, tabName,
currCatName, currSchName, COM_VIEW_OBJECT))
{
deallocEHI(ehi);
processReturn();
return;
}
// clear view definition from my cache only.
CorrName cn(objectNamePart, STMTHEAP, schemaNamePart, catalogNamePart);
ActiveSchemaDB()->getNATableDB()->removeNATable(cn,
NATableDB::REMOVE_MINE_ONLY, COM_VIEW_OBJECT);
// clear view from all other caches here. This compensates for a
// scenario where the object UID is not available in removeNATable,
// and the look up failed too. Solution is just to use the objectUID
// here.
SQL_QIKEY qiKey;
qiKey.operation[0] = 'O';
qiKey.operation[1] = 'R';
qiKey.ddlObjectUID = objUID;
SQL_EXEC_SetSecInvalidKeys(1, &qiKey);
// Now remove referenced tables from cache.
// When a query that references a view is compiled, all views are converted
// to the underlying base tables. Query plans are generated to access the
// tables, and the views are no longer relevant.
// When dropping a view, query plans that reference the dropped view will
// continue to work if the plans are cached. This code removes the
// referenced tables from caches to force recompilations so dropped views
// are noticed.
for (CollIndex i = 0; i < tablesRefdList.entries(); i++)
{
CorrName cn(tablesRefdList[i].objectName,
STMTHEAP,
tablesRefdList[i].schemaName,
tablesRefdList[i].catalogName);
ActiveSchemaDB()->getNATableDB()->removeNATable(cn,
NATableDB::REMOVE_FROM_ALL_USERS, COM_BASE_TABLE_OBJECT);
}
deallocEHI(ehi);
processReturn();
return;
}
// *****************************************************************************
// * *
// * Function: CmpSeabaseDDL::addSchemaObject *
// * *
// * Inserts a schema object row into the OBJECTS table. *
// * *
// *****************************************************************************
// * *
// * Parameters: *
// * *
// * <cliInterface> ExeCliInterface & In *
// * is a reference to an Executor CLI interface handle. *
// * *
// * <schemaName> const ComSchemaName & In *
// * is a reference to a ComSchemaName instance. The catalog name must be *
// * set. *
// * *
// * <schemaClass> ComSchemaClass In *
// * is the class (private or shared) of the schema to be added. *
// * *
// * <ownerID> Int32 In *
// * is the authorization ID that will own the schema. *
// * *
// * <ignoreIfExists> NABoolean In *
// * do not return an error is schema already exists *
// *****************************************************************************
// * *
// * Returns: PrivStatus *
// * *
// * 0: Schema as added *
// * -1: Schema was not added. A CLI error is put into the diags area. *
// * *
// *****************************************************************************
int CmpSeabaseDDL::addSchemaObject(
ExeCliInterface & cliInterface,
const ComSchemaName & schemaName,
ComSchemaClass schemaClass,
Int32 ownerID,
NABoolean ignoreIfExists)
{
NAString catalogName = schemaName.getCatalogNamePartAsAnsiString();
ComAnsiNamePart schemaNameAsComAnsi = schemaName.getSchemaNamePart();
NAString schemaNamePart = schemaNameAsComAnsi.getInternalName();
ComObjectName objName(catalogName,schemaNamePart,NAString(SEABASE_SCHEMA_OBJECTNAME),
COM_TABLE_NAME,TRUE);
if (isSeabaseReservedSchema(objName) &&
!Get_SqlParser_Flags(INTERNAL_QUERY_FROM_EXEUTIL))
{
*CmpCommon::diags() << DgSqlCode(-CAT_RESERVED_METADATA_SCHEMA_NAME)
<< DgSchemaName(schemaName.getExternalName().data());
return -1;
}
NAString objectNamePart = objName.getObjectNamePartAsAnsiString(TRUE);
Lng32 retcode = existsInSeabaseMDTable(&cliInterface,catalogName,schemaNamePart,
objectNamePart, COM_UNKNOWN_OBJECT, FALSE);
if (retcode < 0)
return -1;
if (retcode == 1 ) // already exists
{
if (ignoreIfExists)
return 0;
else
*CmpCommon::diags() << DgSqlCode(-CAT_SCHEMA_ALREADY_EXISTS)
<< DgSchemaName(schemaName.getExternalName().data());
return -1;
}
char buf[4000];
ComUID schemaUID;
schemaUID.make_UID();
Int64 schemaObjectUID = schemaUID.get_value();
Int64 createTime = NA_JulianTimestamp();
NAString quotedSchName;
NAString quotedObjName;
ToQuotedString(quotedSchName,schemaNamePart,FALSE);
ToQuotedString(quotedObjName,NAString(SEABASE_SCHEMA_OBJECTNAME),FALSE);
char schemaObjectLit[3] = {0};
switch (schemaClass)
{
case COM_SCHEMA_CLASS_PRIVATE:
{
strncpy(schemaObjectLit,COM_PRIVATE_SCHEMA_OBJECT_LIT,2);
break;
}
case COM_SCHEMA_CLASS_SHARED:
{
strncpy(schemaObjectLit,COM_SHARED_SCHEMA_OBJECT_LIT,2);
break;
}
case COM_SCHEMA_CLASS_DEFAULT:
default:
{
// Schemas are private by default, but could choose a different
// default class here based on CQD or other attribute.
strncpy(schemaObjectLit,COM_PRIVATE_SCHEMA_OBJECT_LIT,2);
break;
}
}
str_sprintf(buf, "insert into %s.\"%s\".%s values ('%s', '%s', '%s', '%s', %Ld, %Ld, %Ld, '%s', '%s', %d, %d, 0)",
getSystemCatalog(),SEABASE_MD_SCHEMA,SEABASE_OBJECTS,
catalogName.data(), quotedSchName.data(), quotedObjName.data(),
schemaObjectLit,
schemaObjectUID,
createTime,
createTime,
COM_YES_LIT, // valid_def
COM_NO_LIT, // droppable
ownerID,ownerID);
Int32 cliRC = cliInterface.executeImmediate(buf);
if (cliRC < 0)
{
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
return -1;
}
return 0;
}
void CmpSeabaseDDL::createSeabaseView(
StmtDDLCreateView * createViewNode,
NAString &currCatName, NAString &currSchName)
{
Lng32 retcode = 0;
Lng32 cliRC = 0;
ComObjectName viewName(createViewNode->getViewName());
ComAnsiNamePart currCatAnsiName(currCatName);
ComAnsiNamePart currSchAnsiName(currSchName);
viewName.applyDefaults(currCatAnsiName, currSchAnsiName);
const NAString catalogNamePart = viewName.getCatalogNamePartAsAnsiString();
const NAString schemaNamePart = viewName.getSchemaNamePartAsAnsiString(TRUE);
const NAString objectNamePart = viewName.getObjectNamePartAsAnsiString(TRUE);
const NAString extViewName = viewName.getExternalName(TRUE);
const NAString extNameForHbase = catalogNamePart + "." + schemaNamePart + "." + objectNamePart;
ExeCliInterface cliInterface(STMTHEAP, NULL, NULL,
CmpCommon::context()->sqlSession()->getParentQid());
Int32 objectOwnerID = SUPER_USER;
Int32 schemaOwnerID = SUPER_USER;
ComSchemaClass schemaClass;
retcode = verifyDDLCreateOperationAuthorized(&cliInterface,
SQLOperation::CREATE_VIEW,
catalogNamePart,
schemaNamePart,
schemaClass,
objectOwnerID,
schemaOwnerID);
if (retcode != 0)
{
handleDDLCreateAuthorizationError(retcode,catalogNamePart,schemaNamePart);
return;
}
ExpHbaseInterface * ehi = NULL;
ehi = allocEHI();
if (ehi == NULL)
{
processReturn();
return;
}
if ((isSeabaseReservedSchema(viewName)) &&
(!Get_SqlParser_Flags(INTERNAL_QUERY_FROM_EXEUTIL)))
{
*CmpCommon::diags() << DgSqlCode(-1118)
<< DgTableName(extViewName);
deallocEHI(ehi);
return;
}
//if metadata views are being created and seabase is uninitialized, then this
//indicates that these views are being created during 'initialize trafodion'
//and this compiler contains stale version.
//Reload version info.
//
if ((isSeabaseMD(viewName)) &&
(CmpCommon::context()->isUninitializedSeabase()))
{
CmpCommon::context()->setIsUninitializedSeabase(FALSE);
CmpCommon::context()->uninitializedSeabaseErrNum() = 0;
}
retcode = existsInSeabaseMDTable(&cliInterface,
catalogNamePart, schemaNamePart, objectNamePart,
COM_UNKNOWN_OBJECT, FALSE, FALSE);
if (retcode < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
if (retcode == 1) // already exists
{
if (NOT ((createViewNode->isCreateOrReplaceViewCascade())||
(createViewNode->isCreateOrReplaceView())))
{
*CmpCommon::diags() << DgSqlCode(-1390)
<< DgString0(extViewName);
deallocEHI(ehi);
processReturn();
return;
}
}
char * query = NULL;
int64_t objectUID = -1;
std::vector<ObjectPrivsRow> viewPrivsRows;
bool replacingView = false;
if ((retcode == 1) && // exists
((createViewNode->isCreateOrReplaceViewCascade())||
(createViewNode->isCreateOrReplaceView())))
{
// Replace view. Drop this view and recreate it.
Int32 objectOwnerID = 0;
Int32 schemaOwnerID = 0;
Int64 objUID = getObjectUIDandOwners(&cliInterface,
catalogNamePart.data(), schemaNamePart.data(),
objectNamePart.data(),
COM_VIEW_OBJECT,
objectOwnerID,schemaOwnerID);
if (objUID < 0 || objectOwnerID == 0)
{
if (CmpCommon::diags()->getNumber(DgSqlCode::ERROR_) == 0)
SEABASEDDL_INTERNAL_ERROR("getting object UID and owner for create or replace view");
deallocEHI(ehi);
processReturn();
return;
}
if (isAuthorizationEnabled())
{
// Verify user can perform operation
if (!isDDLOperationAuthorized(SQLOperation::ALTER_VIEW,objectOwnerID,schemaOwnerID))
{
*CmpCommon::diags() << DgSqlCode(-CAT_NOT_AUTHORIZED);
deallocEHI(ehi);
processReturn ();
return;
}
// Initiate the privilege manager interface class
NAString privMgrMDLoc;
CONCAT_CATSCH(privMgrMDLoc,getSystemCatalog(),SEABASE_PRIVMGR_SCHEMA);
PrivMgrCommands privInterface(std::string(privMgrMDLoc.data()),
CmpCommon::diags());
PrivStatus privStatus = privInterface.getPrivRowsForObject(objUID,viewPrivsRows);
if (privStatus != PrivStatus::STATUS_GOOD)
{
SEABASEDDL_INTERNAL_ERROR("Unable to retrieve privileges for replaced view");
deallocEHI(ehi);
processReturn();
return;
}
}
if (dropOneTableorView(cliInterface,extViewName.data(),COM_VIEW_OBJECT,false))
{
deallocEHI(ehi);
processReturn();
return;
}
replacingView = true;
}
// Gather the object and grantable privileges that the view creator has.
// This code also verifies that the current user has the necessary
// privileges to create the view.
PrivMgrBitmap privilegesBitmap;
PrivMgrBitmap grantableBitmap;
privilegesBitmap.set();
grantableBitmap.set();
if (gatherViewPrivileges(createViewNode,
&cliInterface,
privilegesBitmap,
grantableBitmap))
{
processReturn();
deallocEHI(ehi);
return;
}
NAString viewText(STMTHEAP);
buildViewText(createViewNode, viewText);
NAString newViewText(STMTHEAP);
for (Lng32 i = 0; i < viewText.length(); i++)
{
if (viewText.data()[i] == '\'')
newViewText += "''";
else
newViewText += viewText.data()[i];
}
ElemDDLColDefArray colDefArray(STMTHEAP);
if (buildViewColInfo(createViewNode, &colDefArray))
{
deallocEHI(ehi);
processReturn();
return;
}
Lng32 numCols = colDefArray.entries();
ComTdbVirtTableColumnInfo * colInfoArray =
new(STMTHEAP) ComTdbVirtTableColumnInfo[numCols];
if (buildColInfoArray(COM_VIEW_OBJECT, &colDefArray, colInfoArray, FALSE, 0, FALSE))
{
deallocEHI(ehi);
processReturn();
return;
}
Int64 objUID = -1;
if (updateSeabaseMDTable(&cliInterface,
catalogNamePart, schemaNamePart, objectNamePart,
COM_VIEW_OBJECT,
"N",
NULL,
numCols,
colInfoArray,
0, NULL,
0, NULL,
objectOwnerID,
schemaOwnerID,
objUID))
{
deallocEHI(ehi);
processReturn();
return;
}
if (objUID < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
// grant privileges for view
if (isAuthorizationEnabled())
{
char authName[MAX_AUTHNAME_LEN+1];
Int32 lActualLen = 0;
Int16 status = ComUser::getAuthNameFromAuthID( (Int32) objectOwnerID
, (char *)&authName
, MAX_AUTHNAME_LEN
, lActualLen );
if (status != FEOK)
{
*CmpCommon::diags() << DgSqlCode(-20235)
<< DgInt0(status)
<< DgInt1(objectOwnerID);
deallocEHI(ehi);
processReturn();
return;
}
// Initiate the privilege manager interface class
NAString privMgrMDLoc;
CONCAT_CATSCH(privMgrMDLoc, getSystemCatalog(), SEABASE_PRIVMGR_SCHEMA);
PrivMgrCommands privInterface(std::string(privMgrMDLoc.data()),
CmpCommon::diags());
retcode = privInterface.grantObjectPrivilege
(objUID, std::string(extViewName.data()), COM_VIEW_OBJECT,
objectOwnerID, std::string(authName),
privilegesBitmap, grantableBitmap);
if (retcode != STATUS_GOOD && retcode != STATUS_WARNING)
{
deallocEHI(ehi);
processReturn();
return;
}
if (replacingView)
{
PrivStatus privStatus = privInterface.insertPrivRowsForObject(objUID,viewPrivsRows);
if (privStatus != PrivStatus::STATUS_GOOD)
{
SEABASEDDL_INTERNAL_ERROR("Unable to restore privileges for replaced view");
deallocEHI(ehi);
processReturn();
return;
}
}
}
query = new(STMTHEAP) char[newViewText.length() + 1000];
str_sprintf(query, "upsert into %s.\"%s\".%s values (%Ld, '%s', %d, %d, 0)",
getSystemCatalog(), SEABASE_MD_SCHEMA, SEABASE_VIEWS,
objUID,
computeCheckOption(createViewNode),
(createViewNode->getIsUpdatable() ? 1 : 0),
(createViewNode->getIsInsertable() ? 1 : 0));
cliRC = cliInterface.executeImmediate(query);
NADELETEBASIC(query, STMTHEAP);
if (cliRC < 0)
{
if (cliRC == -8402)
// string overflow, view text does not fit into metadata table
*CmpCommon::diags() << DgSqlCode(-1198);
else
cliInterface.retrieveSQLDiagnostics(CmpCommon::diags());
deallocEHI(ehi);
processReturn();
return;
}
if (updateTextTable(&cliInterface, objUID, COM_VIEW_TEXT, 0, newViewText))
{
deallocEHI(ehi);
processReturn();
return;
}
if (updateViewUsage(createViewNode, objUID, &cliInterface))
{
deallocEHI(ehi);
processReturn();
return;
}
if (updateObjectValidDef(&cliInterface,
catalogNamePart, schemaNamePart, objectNamePart,
COM_VIEW_OBJECT_LIT,
"Y"))
{
deallocEHI(ehi);
processReturn();
return;
}
CorrName cn(objectNamePart, STMTHEAP, schemaNamePart, catalogNamePart);
ActiveSchemaDB()->getNATableDB()->removeNATable(cn,
NATableDB::REMOVE_MINE_ONLY, COM_VIEW_OBJECT);
deallocEHI(ehi);
processReturn();
return;
}
