Postgresql 中文操作指南
SPI_finish
SPI_finish — 从 SPI 管理器断开 C 函数连接
SPI_finish — disconnect a C function from the SPI manager
Description
SPI_finish 关闭与 SPI 管理器的现有连接。在完成 C 函数当前调用期间所需的操作的 SPI 之后，您必须调用此函数。但是，如果您通过 elog(ERROR) 中止事务，则不必担心发生这种情况。在这种情况下，SPI 会自动清除自身。
SPI_finish closes an existing connection to the SPI manager. You must call this function after completing the SPI operations needed during your C function’s current invocation. You do not need to worry about making this happen, however, if you abort the transaction via elog(ERROR). In that case SPI will clean itself up automatically.