当我执行下面的SQL时，我可以看到在插入DB2表之前，所有记录都在TempDb中缓冲。这会大量杀死性能。 执行计划表明Table / Eagle Spool负责此行为。
有谁知道如何消除这个Tempdb缓冲？链接服务器设置？提示强制表盘不发生？ NB。 RecID上有一个聚集索引。
感谢。
INSERT INTO OPENQUERY(SV99TNDTA,'select OBEECD,OBAWCD from SV99TNDTA.AAOBCPP') ([OBEECD], [OBAWCD])
SELECT Product_Type,
Fnd_External_Account_Nbr
FROM [TEST]
WHERE RecID BETWEEN 0 AND 200
Exceution Plan XML：
<?xml version="1.0" encoding="utf-16"?>
<ShowPlanXML xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns：xsd =“http://www.w3.org/2001/XMLSchema”Version =“1.1”Build =“10.50.4000.0”xmlns =“http://schemas.microsoft。 COM / SQLSERVER / 2004/07 /显示计划“＆GT;
<BatchSequence>
<Batch>
<Statements>
<StmtSimple StatementCompId="1" StatementId="1" StatementText="SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED 
" StatementType="SET TRANSACTION ISOLATION LEVEL" />
</Statements>
<Statements>
<StmtSimple StatementCompId="2" StatementEstRows="88.0909" StatementId="2" StatementOptmLevel="FULL" StatementOptmEarlyAbortReason="GoodEnoughPlanFound" StatementSubTreeCost="0.0174735" StatementText="
INSERT INTO OPENQUERY(SV99TNDTA,'select OBEECD,OBAWCD from SV99TNDTA.AAOBCPP') ([OBEECD], [OBAWCD]) 
SELECT Product_Type, 
Fnd_External_Account_Nbr 
FROM [TEST] 
WHERE RecID BETWEEN 0 AND 200" StatementType="INSERT" QueryHash="0xACC23A29A73BF91D" QueryPlanHash="0xC7A68418FF0DEA2D">
<StatementSetOptions ANSI_NULLS="true" ANSI_PADDING="true" ANSI_WARNINGS="true" ARITHABORT="true" CONCAT_NULL_YIELDS_NULL="true" NUMERIC_ROUNDABORT="false" QUOTED_IDENTIFIER="true" />
<QueryPlan CachedPlanSize="24" CompileTime="4" CompileCPU="4" CompileMemory="184">
<RelOp AvgRowSize="9" EstimateCPU="8.80909E-05" EstimateIO="0" EstimateRebinds="0" EstimateRewinds="0" EstimateRows="88.0909" LogicalOp="Remote Insert" NodeId="0" Parallel="false" PhysicalOp="Remote Insert" EstimatedTotalSubtreeCost="0.0174735">
<OutputList />
<RemoteModify RemoteSource="SV99TNDTA" RemoteObject="select OBEECD,OBAWCD from SV99TNDTA.AAOBCPP">
<SetPredicate>
<ScalarOperator ScalarString="[MSDASQL].[OBEECD] = [Expr1006],[MSDASQL].[OBAWCD] = [Expr1007]">
<ScalarExpressionList>
<ScalarOperator>
<MultipleAssign>
<Assign>
<ColumnReference Table="[MSDASQL]" Column="OBEECD" />
<ScalarOperator>
<Identifier>
<ColumnReference Column="Expr1006" />
</Identifier>
</ScalarOperator>
</Assign>
<Assign>
<ColumnReference Table="[MSDASQL]" Column="OBAWCD" />
<ScalarOperator>
<Identifier>
<ColumnReference Column="Expr1007" />
</Identifier>
</ScalarOperator>
</Assign>
</MultipleAssign>
</ScalarOperator>
</ScalarExpressionList>
</ScalarOperator>
</SetPredicate>
<RelOp AvgRowSize="21" EstimateCPU="0.000131913" EstimateIO="0.013125" EstimateRebinds="0" EstimateRewinds="0" EstimateRows="88.0909" LogicalOp="Eager Spool" NodeId="1" Parallel="false" PhysicalOp="Table Spool" EstimatedTotalSubtreeCost="0.0173854">
<OutputList>
<ColumnReference Column="Expr1006" />
<ColumnReference Column="Expr1007" />
</OutputList>
<Spool>
<RelOp AvgRowSize="21" EstimateCPU="8.80909E-06" EstimateIO="0" EstimateRebinds="0" EstimateRewinds="0" EstimateRows="88.0909" LogicalOp="Compute Scalar" NodeId="2" Parallel="false" PhysicalOp="Compute Scalar" EstimatedTotalSubtreeCost="0.00412845">
<OutputList>
<ColumnReference Column="Expr1006" />
<ColumnReference Column="Expr1007" />
</OutputList>
<ComputeScalar>
<DefinedValues>
<DefinedValue>
<ColumnReference Column="Expr1006" />
<ScalarOperator ScalarString="CONVERT_IMPLICIT(char(4),[WBC_PreConv].[dbo].[TEST].[Product_Type],0)">
<Convert DataType="char" Length="4" Style="0" Implicit="true">
<ScalarOperator>
<Identifier>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="Product_Type" />
</Identifier>
</ScalarOperator>
</Convert>
</ScalarOperator>
</DefinedValue>
<DefinedValue>
<ColumnReference Column="Expr1007" />
<ScalarOperator ScalarString="CONVERT_IMPLICIT(char(10),[WBC_PreConv].[dbo].[TEST].[Fnd_External_Account_Nbr],0)">
<Convert DataType="char" Length="10" Style="0" Implicit="true">
<ScalarOperator>
<Identifier>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="Fnd_External_Account_Nbr" />
</Identifier>
</ScalarOperator>
</Convert>
</ScalarOperator>
</DefinedValue>
</DefinedValues>
<RelOp AvgRowSize="20" EstimateCPU="0.0002539" EstimateIO="0.00386574" EstimateRebinds="0" EstimateRewinds="0" EstimateRows="88.0909" LogicalOp="Clustered Index Seek" NodeId="3" Parallel="false" PhysicalOp="Clustered Index Seek" EstimatedTotalSubtreeCost="0.00411964" TableCardinality="10000000">
<OutputList>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="Product_Type" />
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="Fnd_External_Account_Nbr" />
</OutputList>
<IndexScan Ordered="true" ScanDirection="FORWARD" ForcedIndex="false" ForceSeek="false" ForceScan="false" NoExpandHint="false">
<DefinedValues>
<DefinedValue>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="Product_Type" />
</DefinedValue>
<DefinedValue>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="Fnd_External_Account_Nbr" />
</DefinedValue>
</DefinedValues>
<Object Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Index="[RecID]" IndexKind="Clustered" />
<SeekPredicates>
<SeekPredicateNew>
<SeekKeys>
<StartRange ScanType="GE">
<RangeColumns>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="RecID" />
</RangeColumns>
<RangeExpressions>
<ScalarOperator ScalarString="(0)">
<Const ConstValue="(0)" />
</ScalarOperator>
</RangeExpressions>
</StartRange>
<EndRange ScanType="LE">
<RangeColumns>
<ColumnReference Database="[WBC_PreConv]" Schema="[dbo]" Table="[TEST]" Column="RecID" />
</RangeColumns>
<RangeExpressions>
<ScalarOperator ScalarString="(200)">
<Const ConstValue="(200)" />
</ScalarOperator>
</RangeExpressions>
</EndRange>
</SeekKeys>
</SeekPredicateNew>
</SeekPredicates>
</IndexScan>
</RelOp>
</ComputeScalar>
</RelOp>
</Spool>
</RelOp>
</RemoteModify>
</RelOp>
</QueryPlan>
</StmtSimple>
</Statements>
</Batch>
</BatchSequence>
</ShowPlanXML>