// Cleanup NARoutine cache after the statement completes. Remove entries
// using LRU policy, if the cache has grown too large. The approach here is
// somewhat different from NATableDB caching, which deletes entries from the
// NATable cache if the statement was DDL that may have affected the table
// definition. NATable caching also deletes tables from the cache at this
// time for performance reasons.
void NARoutineDB::resetAfterStatement()
{
// Delete 'dirty' NARoutine objects that were not deleted earlier
// to save compile-time performance.
if (routinesToDeleteAfterStatement_.entries())
{
// Clear the list of tables to delete after statement
routinesToDeleteAfterStatement_.clear();
}
if (entries())
{
// Reduce size of cache if it has grown too large.
if (!enforceMemorySpaceConstraints())
cacheMetaData_ = FALSE; // Disable cache if there is a problem.
// Reset statement level flags
refreshCacheInThisStatement_=FALSE;
// Clear 'accessed in current statement' flag for all cached NARoutines.
NAHashDictionaryIterator<NARoutineDBKey,NARoutine> iter (*this);
NARoutineDBKey *key;
NARoutine *routine;
iter.getNext(key,routine);
while(key) {
routine->getAccessedInCurStmt() = FALSE;
iter.getNext(key,routine);
}
}
}
// ----------------------------------------------------------------------------
// method: removeNARoutine
//
// The method is called when DDL is performed against a routine making its
// definition incorrect.
// It has a side affect of generating query invalidation keys that are
// propagate to all the other processes that could have the routine stored
// in cache.
// ----------------------------------------------------------------------------
void NARoutineDB::removeNARoutine2(QualifiedName &routineName,
ComQiScope qiScope,
Int64 objUID)
{
NAHashDictionaryIterator<NARoutineDBKey,NARoutine> iter (*this);
NARoutineDBKey *key = NULL;
NARoutine *cachedNARoutine = NULL;
NASet<Int64> objectUIDs(CmpCommon::statementHeap(), 1);
// If there are no items in cache, skip
if (entries() > 0)
{
NASet<Int64> objectUIDs(CmpCommon::statementHeap(), 1);
// iterate over all entries and remove the ones that match the name
iter.reset();
iter.getNext(key,cachedNARoutine);
while(key && cachedNARoutine)
{
if (cachedNARoutine->getSqlName() == routineName)
{
objectUIDs.insert(cachedNARoutine->getRoutineID());
moveRoutineToDeleteList(cachedNARoutine,key);
}
iter.getNext(key,cachedNARoutine);
}
}
// clear out the other users' caches too.
if (qiScope == REMOVE_FROM_ALL_USERS)
{
// There are some scenarios where the affected object does not have an
// NARoutine cache entry. However, other processes may have this routine
// in their caches. Go ahead and create an invalidation key
if (0 == objectUIDs.entries())
objectUIDs.insert(objUID);
Int32 numKeys = objectUIDs.entries();
SQL_QIKEY qiKeys[numKeys];
for (CollIndex i = 0; i < numKeys; i++)
{
qiKeys[i].ddlObjectUID = objectUIDs[i];
qiKeys[i].operation[0] = 'O';
qiKeys[i].operation[1] = 'R';
}
long retcode = SQL_EXEC_SetSecInvalidKeys(numKeys, qiKeys);
}
}
// ----------------------------------------------------------------------------
// method: free_entries_with_QI_key
//
// This method is sent a list of query invalidation keys.
// It looks through the list of routines to see if any of them need to be
// removed from cache because their definitions are no longer valid.
//
// numKeys - number of existing invalidation keys
// qiKeyArray - actual keys
// ----------------------------------------------------------------------------
void NARoutineDB::free_entries_with_QI_key(Int32 numKeys, SQL_QIKEY* qiKeyArray)
{
NAHashDictionaryIterator<NARoutineDBKey,NARoutine> iter (*this);
NARoutineDBKey *key;
NARoutine *routine;
iter.getNext(key,routine);
while(key && routine)
{
// See if item should be removed
if (qiCheckForInvalidObject(numKeys, qiKeyArray,
routine->getRoutineID(),
routine->getSecKeySet()))
moveRoutineToDeleteList(routine, key);
iter.getNext(key,routine);
}
}
// append an ascii-version of UDFunction into cachewa.qryText_
void UDFunction::generateCacheKey(CacheWA& cwa) const
{
NARoutine *routine = NULL;
NARoutine *action = NULL;
cwa += " nam:";
cwa += functionName_.getExternalName().data();
if (cwa.getPhase() >= CmpMain::BIND &&
getRoutineDesc() &&
(routine=getRoutineDesc()->getNARoutine()) != NULL)
{
char redefTime[40];
convertInt64ToAscii(routine->getRedefTime(), redefTime);
cwa += " redef:";
cwa += redefTime;
if ((routine->getSchemaLabelFileName()) &&
(str_len(routine->getSchemaLabelFileName()) > 0))
{
char schRedefTime[40];
convertInt64ToAscii(routine->getSchemaRedefTime(), schRedefTime);
cwa += " schredef:";
cwa += schRedefTime;
}
}
if (getRoutineDesc() &&
getRoutineDesc()->getActionNameAsGiven().length() != 0)
{
cwa += " actnam:";
cwa += getRoutineDesc()->getActionNameAsGiven();
if (cwa.getPhase() >= CmpMain::BIND &&
getRoutineDesc() &&
(action=getRoutineDesc()->getActionNARoutine()) != NULL)
{
char redefTime[40];
convertInt64ToAscii(action->getRedefTime(), redefTime);
cwa += " actredef:";
cwa += redefTime;
}
}
cwa += "(";
Lng32 arity = (Lng32) getArity();
for (Lng32 i = 0; i < arity; i++) {
if (i > 0) {
cwa += ", ";
}
child(i)->generateCacheKey(cwa);
}
if (getRoutineDesc()->getLocale() != 0 )
{
cwa += ", LOCALE: ";
char dFmt[20];
str_itoa(getRoutineDesc()->getLocale(), dFmt);
cwa += dFmt;
}
cwa += ")";
}
// append an ascii-version of IsolatedScalarUDF into cachewa.qryText_
void IsolatedScalarUDF::generateCacheKey(CacheWA &cwa) const
{
NARoutine *routine = NULL;
NARoutine *action = NULL;
RelExpr::generateCacheKey(cwa);
cwa += " UDFname:";
cwa += getRoutineName().getQualifiedNameAsAnsiString().data();
if (cwa.getPhase() >= CmpMain::BIND &&
getRoutineDesc() &&
(routine=getRoutineDesc()->getNARoutine()) != NULL)
{
char redefTime[40];
convertInt64ToAscii(routine->getRedefTime(), redefTime);
cwa += " redef:";
cwa += redefTime;
}
if (getRoutineDesc() != NULL && getRoutineDesc()->isUUDFRoutine())
{
cwa += " action:";
cwa += getRoutineDesc()->getActionNameAsGiven();
if (cwa.getPhase() >= CmpMain::BIND &&
getRoutineDesc() &&
(action=getRoutineDesc()->getActionNARoutine()) != NULL)
{
char redefTime[40];
convertInt64ToAscii(action->getRedefTime(), redefTime);
cwa += " actredef:";
cwa += redefTime;
}
}
const ItemExpr *paramExpr = (getProcAllParamsTree() == NULL) ?
getProcInputParamsVids().rebuildExprTree(ITM_ITEM_LIST) :
getProcAllParamsTree();
if (paramExpr)
{
cwa += " arg:(";
paramExpr->generateCacheKey(cwa);
cwa += ")";
}
}
// Find the NARoutine entry in the cache for 'key' or create it if not found.
// 1. Check for entry in cache.
// 2. If it doesn't exist, return.
// 3. If it does exist, check to see if this is first time entry accessed.
// 4. If so, check to see if entry is dirty (obsolete).
// 5. If dirty, remove key and add to list to remove entry after statement
// completes.
// Note that BindWA is needed to be passed to this function so that we can
// use it with getRedefTime() is necessary.
NARoutine *NARoutineDB::get(BindWA *bindWA, const NARoutineDBKey *key)
{
// Check cache to see if a cached NARoutine object exists
NARoutine *cachedNARoutine =
NAKeyLookup<NARoutineDBKey,NARoutine>::get(key); /* 1 */
totalLookupsCount_++; // Statistics counter: number of lookups
if (!cachedNARoutine || !cacheMetaData_) return NULL; /* 2 */
totalCacheHits_++; // Statistics counter: number of cache hits.
// Record time that this NARoutine was obtained from cache for LRU.
cachedNARoutine->setLastUsedTime(hs_getEpochTime());
cachedNARoutine->getAccessedInCurStmt() = TRUE;
return cachedNARoutine;
}
NARoutine::NARoutine (const NARoutine &old, CollHeap *h)
: name_ (old.name_, h)
, hashKey_ (old.hashKey_, h)
, language_ (old.language_)
, UDRType_ (old.UDRType_)
, sqlAccess_ (old.sqlAccess_)
, transactionAttributes_ (old.transactionAttributes_)
, maxResults_ (old.maxResults_)
, externalFile_ (old.externalFile_, h)
, externalPath_ (old.externalPath_, h)
, externalName_ (old.externalName_, h)
, signature_ (old.signature_, h)
, librarySqlName_ (old.librarySqlName_, h)
, paramStyle_ (old.paramStyle_)
, paramStyleVersion_ (old.paramStyleVersion_)
, isDeterministic_ (old.isDeterministic_)
, isCallOnNull_ (old.isCallOnNull_)
, isIsolate_ (old.isIsolate_)
, externalSecurity_ (old.externalSecurity_)
, isExtraCall_ (old.isExtraCall_)
, hasOutParams_ (old.hasOutParams_)
, redefTime_ (old.redefTime_)
, lastUsedTime_ (old.lastUsedTime_)
, routineSecKeySet_ (h)
, isUniversal_ (old.isUniversal_)
, executionMode_ (old.getExecutionMode())
, objectUID_ (old.objectUID_)
, stateAreaSize_ (old.stateAreaSize_)
, dllName_ (old.dllName_, h)
, dllEntryPoint_ (old.dllEntryPoint_, h)
, comRoutineParallelism_ (old.comRoutineParallelism_)
, sasFormatWidth_ (old.sasFormatWidth_, h)
, systemName_ (old.systemName_, h)
, dataSource_ (old.dataSource_, h)
, fileSuffix_ (old.fileSuffix_, h)
, initialRowCost_ (old.initialRowCost_)
, normalRowCost_ (old.normalRowCost_)
, udfFanOut_ (old.udfFanOut_)
, passThruDataNumEntries_ (old.passThruDataNumEntries_)
, uecValues_ (old.uecValues_, h)
, actionPosition_ (old.actionPosition_)
, schemaVersionOfRoutine_ (old.schemaVersionOfRoutine_)
, objectOwner_ (0)
, schemaOwner_ (0)
, privInfo_ (NULL)
, heap_ (h)
{
extRoutineName_ = new (h) ExtendedQualName(*old.extRoutineName_, h);
extActionName_ = new (h) NAString(*old.extActionName_, h);
intActionName_ = new (h) ComObjectName(*old.intActionName_, h);
inParams_ = new (h) NAColumnArray(*old.inParams_, h);
outParams_ = new (h) NAColumnArray(*old.outParams_, h);
params_ = new (h) NAColumnArray(*old.params_, h);
if (old.passThruDataNumEntries_ EQU 0)
{
passThruDataNumEntries_ = 0;
passThruData_ = NULL;
passThruDataSize_ = NULL;
}
else
{
passThruData_ = new (h) char*[(UInt32) passThruDataNumEntries_];
passThruDataSize_ = new (h) Int64[(UInt32) passThruDataNumEntries_];
for (Int32 i=0; i<passThruDataNumEntries_; i++)
{
passThruDataSize_[i]=old.passThruDataSize_[i];
passThruData_[i] = new (h) char[(UInt32)passThruDataSize_[i]+1];
memcpy(passThruData_[i], old.passThruData_[i], (size_t)passThruDataSize_[i]);
passThruData_[i][(size_t)passThruDataSize_[i]]=0; // make sure to Null terminate the string
}
}
routineSecKeySet_ = old.routineSecKeySet_;
heapSize_ = (h ? h->getTotalSize() : 0);
}
void CmpSeabaseDDL::dropSeabaseRoutine(StmtDDLDropRoutine * dropRoutineNode,
NAString &currCatName,
NAString &currSchName)
{
Lng32 retcode = 0;
ComObjectName routineName(dropRoutineNode->getRoutineName());
ComAnsiNamePart currCatAnsiName(currCatName);
ComAnsiNamePart currSchAnsiName(currSchName);
routineName.applyDefaults(currCatAnsiName, currSchAnsiName);
const NAString catalogNamePart =
routineName.getCatalogNamePartAsAnsiString();
const NAString schemaNamePart =
routineName.getSchemaNamePartAsAnsiString(TRUE);
const NAString objectNamePart =
routineName.getObjectNamePartAsAnsiString(TRUE);
const NAString extRoutineName = routineName.getExternalName(TRUE);
ExpHbaseInterface * ehi = NULL;
ExeCliInterface cliInterface(STMTHEAP, NULL, NULL,
CmpCommon::context()->sqlSession()->getParentQid());
ehi = allocEHI();
if (ehi == NULL)
{
processReturn();
return;
}
retcode = existsInSeabaseMDTable(&cliInterface,
catalogNamePart, schemaNamePart,
objectNamePart, COM_USER_DEFINED_ROUTINE_OBJECT,
TRUE, FALSE);
if (retcode < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
if (retcode == 0) // does not exist
{
*CmpCommon::diags() << DgSqlCode(-1389)
<< DgString0(extRoutineName);
deallocEHI(ehi);
processReturn();
return;
}
// get objectOwner
Int64 objUID = 0;
Int32 objectOwnerID = 0;
Int32 schemaOwnerID = 0;
Int64 objectFlags = 0;
// see if routine is cached
BindWA bindWA(ActiveSchemaDB(), CmpCommon::context(), FALSE/*inDDL*/);
NARoutineDB *pRoutineDBCache = ActiveSchemaDB()->getNARoutineDB();
QualifiedName qualRoutineName(routineName, STMTHEAP);
NARoutineDBKey key(qualRoutineName, STMTHEAP);
NARoutine *cachedNARoutine = pRoutineDBCache->get(&bindWA, &key);
if (cachedNARoutine)
{
objUID = cachedNARoutine->getRoutineID();
objectOwnerID = cachedNARoutine->getObjectOwner();
schemaOwnerID = cachedNARoutine->getSchemaOwner();
}
else
{
objUID = getObjectInfo(&cliInterface,
catalogNamePart.data(), schemaNamePart.data(),
objectNamePart.data(), COM_USER_DEFINED_ROUTINE_OBJECT,
objectOwnerID,schemaOwnerID,objectFlags);
if (objUID < 0 || objectOwnerID == 0 || schemaOwnerID == 0)
{
deallocEHI(ehi);
processReturn();
return;
}
}
// Verify user has privilege to drop routine
if (!isDDLOperationAuthorized(SQLOperation::DROP_ROUTINE,objectOwnerID,schemaOwnerID))
{
*CmpCommon::diags() << DgSqlCode(-CAT_NOT_AUTHORIZED);
deallocEHI(ehi);
processReturn ();
return;
}
// Determine if this function is referenced by any other objects.
Lng32 cliRC = 0;
Queue * usingViewsQueue = NULL;
if (dropRoutineNode->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(-CAT_DEPENDENT_VIEW_EXISTS)
<< DgTableName(usingObjName);
deallocEHI(ehi);
processReturn();
return;
}
}
else
if (dropRoutineNode->getDropBehavior() == COM_CASCADE_DROP_BEHAVIOR)
{
cliRC = getUsingViews(&cliInterface, objUID, usingViewsQueue);
if (cliRC < 0)
{
deallocEHI(ehi);
processReturn();
return;
}
}
if (usingViewsQueue)
{
usingViewsQueue->position();
for (int idx = 0; idx < usingViewsQueue->numEntries(); idx++)
{
OutputInfo * vi = (OutputInfo*)usingViewsQueue->getNext();
char * viewName = vi->get(0);
if (dropOneTableorView(cliInterface,viewName,COM_VIEW_OBJECT,false))
{
deallocEHI(ehi);
processReturn();
return;
}
}
}
// Removed routine from metadata
if (dropSeabaseObject(ehi, dropRoutineNode->getRoutineName(),
currCatName, currSchName, COM_USER_DEFINED_ROUTINE_OBJECT,
TRUE, FALSE))
{
deallocEHI(ehi);
processReturn();
return;
}
// Remove cached entries in other processes
pRoutineDBCache->removeNARoutine(qualRoutineName,
NARoutineDB::REMOVE_FROM_ALL_USERS,
objUID);
deallocEHI(ehi);
processReturn();
return;
}
