diff --git a/SeedDMS_Core/Core/inc.DBAccessPDO.php b/SeedDMS_Core/Core/inc.DBAccessPDO.php
index 5d48723cf..877379e53 100644
--- a/SeedDMS_Core/Core/inc.DBAccessPDO.php
+++ b/SeedDMS_Core/Core/inc.DBAccessPDO.php
@@ -434,6 +434,39 @@ class SeedDMS_Core_DatabaseAccess {
 			}
 			return $this->_ttcontentid;
 		}
+		elseif (!strcasecmp($tableName, "ttreceiptid")) {
+			switch($this->_driver) {
+				case 'sqlite':
+					$queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttreceiptid` AS ".
+						"SELECT `tblDocumentReceiptLog`.`receiptID`, ".
+						"MAX(`tblDocumentReceiptLog`.`receiptLogID`) AS `maxLogID` ".
+						"FROM `tblDocumentReceiptLog` ".
+						"GROUP BY `tblDocumentReceiptLog`.`receiptID` ".
+						"ORDER BY `maxLogID`";
+				break;
+				default:
+					$queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttreceiptid` (PRIMARY KEY (`receiptID`), INDEX (`maxLogID`)) ".
+						"SELECT `tblDocumentReceiptLog`.`receiptID`, ".
+						"MAX(`tblDocumentReceiptLog`.`receiptLogID`) AS `maxLogID` ".
+						"FROM `tblDocumentReceiptLog` ".
+						"GROUP BY `tblDocumentReceiptLog`.`receiptID` ".
+						"ORDER BY `maxLogID`";
+			}
+			if (!$this->_ttreceiptid) {
+				if (!$this->getResult($queryStr))
+					return false;
+				$this->_ttreceiptid=true;
+			}
+			else {
+				if (is_bool($override) && $override) {
+					if (!$this->getResult("DELETE FROM `ttreceiptid`"))
+						return false;
+					if (!$this->getResult($queryStr))
+						return false;
+				}
+			}
+			return $this->_ttreceiptid;
+		}
 		return false;
 	} /* }}} */