short ExExeUtilLongRunningTcb::processInitial(Lng32 &rc)
{
Int64 rowsAffected = 0;
setInitialOutputVarPtrList(new(getHeap()) Queue(getHeap()));
setContinuingOutputVarPtrList(new(getHeap()) Queue(getHeap()));
lruStmtAndPartInfo_ = new(getHeap()) char[(UInt32)(lrTdb().getLruStmtLen() + lrTdb().getPredicateLen() + 10)];
ExExeStmtGlobals *exeGlob = getGlobals()->castToExExeStmtGlobals();
ExEspStmtGlobals *espGlob = exeGlob->castToExEspStmtGlobals();
ContextCli *currContext = NULL;
CliGlobals *cliGlobals = NULL;
if (espGlob)
{
cliGlobals = GetCliGlobals();
currContext = cliGlobals->currContext();
}
else
{
currContext = exeGlob->castToExMasterStmtGlobals()->getStatement()->getContext();
}
Int32 espNum = 1;
// we are executing inside an ESP go ahead and set the partition number to the
// ESP instance number. The added one is because ESP instances are 0 based
if (espGlob)
{
espNum = (Int32) espGlob->getMyInstanceNumber() + 1;
}
if (lrTdb().getPredicate() != NULL)
str_sprintf(lruStmtAndPartInfo_,
lrTdb().getLruStmt(),
espNum,
lrTdb().getPredicate());
else
str_sprintf(lruStmtAndPartInfo_,
lrTdb().getLruStmt(),
espNum);
lruStmtWithCKAndPartInfo_ = new(getHeap()) char[(UInt32)(lrTdb().getLruStmtWithCKLen() + lrTdb().getPredicateLen() + 10)];
if (lrTdb().getPredicate() != NULL)
str_sprintf(lruStmtWithCKAndPartInfo_,
lrTdb().getLruStmtWithCK(),
espNum,
lrTdb().getPredicate());
else
str_sprintf(lruStmtWithCKAndPartInfo_,
lrTdb().getLruStmtWithCK(),
espNum);
// All internal queries issued from CliInterface assume that
// they are in ISO_MAPPING.
// For LongRunning we need to send the actual ISO_MAPPING.
// Save it and restore after the prepare
Int32 savedIsoMapping =
cliInterface()->getIsoMapping();
cliInterface()->setIsoMapping
(currContext->getSessionDefaults()->getIsoMappingEnum());
// If the table we are deleting from is an IUD log table,
// we need to set the parserflags to accept the special
// table type and the quoted column names
if (lrTdb().useParserflags())
currContext->setSqlParserFlags(0x3);
rc = cliInterface()->prepareAndExecRowsPrologue(lruStmtAndPartInfo_,
lruStmtWithCKAndPartInfo_,
getInitialOutputVarPtrList(),
getContinuingOutputVarPtrList(),
rowsAffected);
cliInterface()->setIsoMapping(savedIsoMapping);
if (rc < 0)
{
return -1;
}
if (rc >= 0 && rowsAffected > 0)
addRowsDeleted(rowsAffected);
return 0;
}
