diff --git a/search/filters/GreaterThanFilter.php b/search/filters/GreaterThanFilter.php
index 12540e160..20c95e24d 100644
--- a/search/filters/GreaterThanFilter.php
+++ b/search/filters/GreaterThanFilter.php
@@ -17,7 +17,7 @@ class GreaterThanFilter extends SearchFilter {
 		return $query->where(sprintf(
 			"%s > '%s'",
 			$this->getDbName(),
-			Convert::raw2sql($this->getValue())
+			Convert::raw2sql($this->getDbFormattedValue())
 		));
 	}
 	
diff --git a/search/filters/SearchFilter.php b/search/filters/SearchFilter.php
index 1077889d9..b295bd083 100644
--- a/search/filters/SearchFilter.php
+++ b/search/filters/SearchFilter.php
@@ -94,6 +94,20 @@ abstract class SearchFilter extends Object {
 		return $candidateClass . "." . $this->name;
 	}
 	
+	/**
+	 * Return the value of the field as processed by the DBField class
+	 *
+	 * @return string
+	 */
+	function getDbFormattedValue() {
+		// SRM: This code finds the table where the field named $this->name lives
+		// Todo: move to somewhere more appropriate, such as DataMapper, the magical class-to-be?
+		$candidateClass = $this->model;
+		$dbField = singleton($this->model)->dbObject($this->name);
+		$dbField->setValue($this->value);
+		return $dbField->RAW();
+	}
+	
 	/**
 	 * Traverse the relationship fields, and add the table
 	 * mappings to the query object state.