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SPI_saveplan

SPI_saveplan — save a prepared statement

Synopsis

SPIPlanPtr SPI_saveplan(SPIPlanPtrplan)

Description

SPI_saveplan copies a passed statement (prepared bySPI_prepare) into memory that will not be freed bySPI_finish nor by the transaction manager, and returns a pointer to the copied statement. This gives you the ability to reuse prepared statements in the subsequent invocations of your C function in the current session.

Arguments

Return Value

Pointer to the copied statement; orNULL if unsuccessful. On error,SPI_result is set thus:

Notes

The originally passed-in statement is not freed, so you might wish to doSPI_freeplan on it to avoid leaking memory untilSPI_finish.

In most cases,SPI_keepplan is preferred to this function, since it accomplishes largely the same result without needing to physically copy the prepared statement's data structures.