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我在表上有一个复合主键（C1+C2+C3）。这是DDL

    CREATE TABLE "InputFiles" (
  [PlantID] INTEGER, 
  [FileID] INTEGER, 
  [VesselDataCase] CHAR(9), 
  [Comments] CHAR(73),  
Primary key([PlantID], [FileID]),
  FOREIGN KEY(PlantId) REFERENCES Plant(PlantId) ON DELETE CASCADE);

CREATE TABLE [VesselData] (
[MaterialType] NVARCHAR(100) NOT NULL,
[Operating_Temperature] NUMERIC, 
  [IRTndt] numeric, 
  [VDID] integer, 
  [PlantId] integer, 
  [FileId] integer,
FOREIGN KEY([plantid], [fileid]) REFERENCES [inputfiles]([plantid], [fileid]) ON DELETE cascade, 
  CONSTRAINT [sqlite_autoindex_VesselData_1] PRIMARY KEY ([VDID], [PlantId], [FileId])); 

When I try to insert a new row in VesselData Table

假设 VDID = 1，Fileid = 2，Plantid = 3。所以它寻找（1+2+3）组合。即使表中不存在具有这些值的字段，由于违反约束列 VDID、PlantId、FileId 不是唯一的 SQlite 异常，它也会给我中止

但是，它是在表中插入字段。插入此字段后，它给了我这个异常。由于无效的字段值，它不应该插入或中止

谢谢孙

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