Changeset 105:d9ad409407e0

Timestamp:

10/28/08 20:24:46 (2 months ago)

Author:

Ryan Daum <ryan.daum@…>

Branch:

default

Message:

Use LinkedHashMap for join closure computation to improve consistency of order.

Files:

• src/main/java/com/thimbleware/jrel/sql/AbstractANSISQLDialect.java (modified) (2 diffs)

src/main/java/com/thimbleware/jrel/sql/AbstractANSISQLDialect.java

@@ -26 +26 @@
 import static com.google.common.collect.Lists.newLinkedList;
 import com.google.common.collect.Multimap;
+import com.google.common.collect.LinkedHashMultimap;
 import com.thimbleware.jrel.*;
 import com.thimbleware.jrel.exceptions.CannotUseFunctionProjectionInReferenceException;
@@ -134 +135 @@
         if (joins.size() != 0) {
             //
-            Multimap<NamedRelation, JoinClause> joinEdges = new HashMultimap<NamedRelation, JoinClause>();
+            Multimap<NamedRelation, JoinClause> joinEdges = new LinkedHashMultimap<NamedRelation, JoinClause>();
             HashSet<JoinClause> visited = new HashSet<JoinClause>();