Function ReScanExprContext

src/backend/executor/execUtils.c:494–501

* ReScanExprContext * * Reset an expression context in preparation for a rescan of its * plan node. This requires calling any registered shutdown callbacks, * since any partially complete set-returning-functions must be canceled. * * Note we make no assumption about the caller's memory context. */

 * Note we make no assumption about the caller's memory context.
 */
void
ReScanExprContext(ExprContext *econtext)
{
	/* Call any registered callbacks */
	ShutdownExprContext(econtext, true);
	/* And clean up the memory used */
	MemoryContextReset(econtext->ecxt_per_tuple_memory);
}

/*
 * Build a per-output-tuple ExprContext for an EState.