Function ScanKeyEntryInitialize

src/backend/access/common/scankey.c:31–56

* ScanKeyEntryInitialize * Initializes a scan key entry given all the field values. * The target procedure is specified by OID (but can be invalid * if SK_SEARCHNULL or SK_SEARCHNOTNULL is set). * * Note: CurrentMemoryContext at call should be as long-lived as the ScanKey * itself, because that's what will be used for any subsidiary info attached * to the ScanKey's FmgrInfo record. */

 * to the ScanKey's FmgrInfo record.
 */
void
ScanKeyEntryInitialize(ScanKey entry,
					   int flags,
					   AttrNumber attributeNumber,
					   StrategyNumber strategy,
					   Oid subtype,
					   Oid collation,
					   RegProcedure procedure,
					   Datum argument)
{
	entry->sk_flags = flags;
	entry->sk_attno = attributeNumber;
	entry->sk_strategy = strategy;
	entry->sk_subtype = subtype;
	entry->sk_collation = collation;
	entry->sk_argument = argument;
	if (RegProcedureIsValid(procedure))
	{
		fmgr_info(procedure, &entry->sk_func);
	}
	else
	{
		Assert(flags & (SK_SEARCHNULL | SK_SEARCHNOTNULL));
		MemSet(&entry->sk_func, 0, sizeof(entry->sk_func));
	}
}

/*
 * ScanKeyInit