Function InstrStartNode

src/backend/executor/instrument.c:93–106

Entry to a plan node */

/* Entry to a plan node */
void
InstrStartNode(Instrumentation *instr)
{
	if (instr->need_timer &&
		!INSTR_TIME_SET_CURRENT_LAZY(instr->starttime))
		elog(ERROR, "InstrStartNode called twice in a row");

	/* save buffer usage totals at node entry, if needed */
	if (instr->need_bufusage)
		instr->bufusage_start = pgBufferUsage;

	if (instr->need_walusage)
		instr->walusage_start = pgWalUsage;
}

/* Exit from a plan node */
static void