diff --git a/SeedDMS_Core/Core/inc.DBAccessPDO.php b/SeedDMS_Core/Core/inc.DBAccessPDO.php
index 20d6a5474..00e5ecfc3 100644
--- a/SeedDMS_Core/Core/inc.DBAccessPDO.php
+++ b/SeedDMS_Core/Core/inc.DBAccessPDO.php
@@ -507,6 +507,14 @@ class SeedDMS_Core_DatabaseAccess {
 						"GROUP BY `tblDocumentReceiptLog`.`receiptID` ".
 						"ORDER BY `maxLogID`";
 				break;
+				case 'pgsql':
+					$queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttreceiptid` (`receiptID` INTEGER, `maxLogID` INTEGER, PRIMARY KEY (`receiptID`);".
+						"INSERT INTO `ttreceiptid` 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`, ".
@@ -540,6 +548,14 @@ class SeedDMS_Core_DatabaseAccess {
 						"GROUP BY `tblDocumentRevisionLog`.`revisionID` ".
 						"ORDER BY `maxLogID`";
 				break;
+				case 'pgsql':
+					$queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttrevisionid` (`revisionID` INTEGER, `maxLogID` INTEGER, PRIMARY KEY (`revisionID`));".
+						"INSERT INTO `ttrevisionid` SELECT `tblDocumentRevisionLog`.`revisionID`, ".
+						"MAX(`tblDocumentRevisionLog`.`revisionLogID`) AS `maxLogID` ".
+						"FROM `tblDocumentRevisionLog` ".
+						"GROUP BY `tblDocumentRevisionLog`.`revisionID` ".
+						"ORDER BY `maxLogID`";
+				break;
 				default:
 					$queryStr = "CREATE TEMPORARY TABLE IF NOT EXISTS `ttrevisionid` (PRIMARY KEY (`revisionID`), INDEX (`maxLogID`)) ".
 						"SELECT `tblDocumentRevisionLog`.`revisionID`, ".