找不到列 "dbo" 或用户定义的函数或聚合解决办法

ALTER FUNCTION [dbo].[f_PCB_GetChildContractID]
(
    @ContractID INT
)
RETURNS 
@Temp TABLE 
(
    ContractID INT
)
AS
BEGIN
    DECLARE @ParentID INT
    SELECT @ParentID = ParentID FROM dbo.BS_Contract WHERE ID = @ContractID
    IF(@ParentID = 0 OR @ParentID IS NULL)
    BEGIN
        --父合同
        INSERT INTO @Temp SELECT ContractID FROM v_PCB_Planning 
        WHERE Status IN ('4', '5', '6', '7', '8') AND ParentID = @ContractID
    END
    ELSE
    BEGIN
        --其本身就是自合同
        INSERT INTO @Temp SELECT @ContractID
    END
    --返回
    RETURN
END
GO