> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/15/server-programming/server-programming-interface/spi-interface/spi-spi-execute-plan.md).

# SPI\_execute\_plan

## SPI\_execute\_plan

SPI\_execute\_plan — execute a statement prepared by `SPI_prepare`

### Synopsis

```

int SPI_execute_plan(SPIPlanPtr plan, Datum * values, const char * nulls,
                     bool read_only, long count)
```

### Description

`SPI_execute_plan` executes a statement prepared by `SPI_prepare` or one of its siblings. *`read_only`* and *`count`* have the same interpretation as in `SPI_execute`.

### Arguments

`SPIPlanPtr`` `*`plan`*

prepared statement (returned by `SPI_prepare`)

`Datum *`` `*`values`*

An array of actual parameter values. Must have same length as the statement's number of arguments.

`const char *`` `*`nulls`*

An array describing which parameters are null. Must have same length as the statement's number of arguments.

If *`nulls`* is `NULL` then `SPI_execute_plan` assumes that no parameters are null. Otherwise, each entry of the *`nulls`* array should be `' '` if the corresponding parameter value is non-null, or `'n'` if the corresponding parameter value is null. (In the latter case, the actual value in the corresponding *`values`* entry doesn't matter.) Note that *`nulls`* is not a text string, just an array: it does not need a `'\0'` terminator.

`bool`` `*`read_only`*

`true` for read-only execution

`long`` `*`count`*

maximum number of rows to return, or `0` for no limit

### Return Value

The return value is the same as for `SPI_execute`, with the following additional possible error (negative) results:

`SPI_ERROR_ARGUMENT`

if *`plan`* is `NULL` or invalid, or *`count`* is less than 0

`SPI_ERROR_PARAM`

if *`values`* is `NULL` and *`plan`* was prepared with some parameters

`SPI_processed` and `SPI_tuptable` are set as in `SPI_execute` if successful.

***

原文：[PostgreSQL 15.19 Documentation](/15/server-programming/server-programming-interface/spi-interface/spi-spi-execute-plan.md)（英文原文，待翻譯）


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