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                            # SPI_copytuple



## Name

SPI_copytuple?--?在上層執行者環境里制作一個行的拷貝

## Synopsis

```
HeapTuple SPI_copytuple(HeapTuple row)
```



## 描述

`SPI_copytuple`在上層執行者環境里制作一個行的拷貝。 這個函數通常用于從觸發器里返回一個修改過的行。在聲明為返回復合類型的函數里， 應該使用`SPI_returntuple`。



## 參數

`HeapTuple` `row`

要拷貝的行



## 返回值

拷貝行；只有在`tuple`是`NULL` 的時候為`NULL`








                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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