Patch from Zell to quell warnings about mismatched schemas for database-

specific auxiliary columns (specifically Postgres's FTS column).

src/java/com/samskivert/jdbc/depot/DepotMarshaller.java

@@ -590,7 +590,7 @@ public class DepotMarshaller<T extends PersistentRecord>
         // if the table exists, see if should attempt automatic schema migration
         if (_schemaVersion < 0) {
             // nope, versioning disabled
-            verifySchemasMatch(metaData, ctx);
+            verifySchemasMatch(metaData, ctx, builder);
             return;
         }
 
@@ -613,7 +613,7 @@ public class DepotMarshaller<T extends PersistentRecord>
         });
 
         if (currentVersion == _schemaVersion) {
-            verifySchemasMatch(metaData, ctx);
+            verifySchemasMatch(metaData, ctx, builder);
             return;
         }
 
@@ -813,7 +813,8 @@ public class DepotMarshaller<T extends PersistentRecord>
     /**
      * Checks that there are no database columns for which we no longer have Java fields.
      */
-    protected void verifySchemasMatch (TableMetaData meta, PersistenceContext ctx)
+    protected void verifySchemasMatch (
+        TableMetaData meta, PersistenceContext ctx, SQLBuilder builder)
         throws PersistenceException
     {
         for (String fname : _columnFields) {
@@ -821,6 +822,9 @@ public class DepotMarshaller<T extends PersistentRecord>
             meta.tableColumns.remove(fmarsh.getColumnName());
         }
         for (String column : meta.tableColumns) {
+            if (builder.isPrivateColumn(column)) {
+                continue;
+            }
             log.warning(getTableName() + " contains stale column '" + column + "'.");
         }
     }

src/java/com/samskivert/jdbc/depot/MySQLBuilder.java

@@ -160,6 +160,13 @@ public class MySQLBuilder
         return true;
     }
 
+    @Override
+    public boolean isPrivateColumn (String column)
+    {
+        // The MySQL builder does not yet have any private columns.
+        return false;
+    }
+
     @Override
     protected BuildVisitor getBuildVisitor ()
     {

src/java/com/samskivert/jdbc/depot/PostgreSQLBuilder.java

@@ -173,6 +173,13 @@ public class PostgreSQLBuilder
         return true;
     }
 
+    @Override
+    public boolean isPrivateColumn (String column)
+    {
+        // filter out any column that we created as part of FTS support
+        return column.startsWith("ftsCol_");
+    }
+
     @Override
     protected BuildVisitor getBuildVisitor ()
     {

src/java/com/samskivert/jdbc/depot/SQLBuilder.java

@@ -179,6 +179,13 @@ public abstract class SQLBuilder
         Connection conn, DepotMarshaller<T> marshaller, FullTextIndex fts)
         throws SQLException;
 
+    /**
+     * Return true if the supplied column is an internal consideration of this {@link SQLBuilder},
+     * e.g. PostgreSQL's full text search data is stored in a table column that should otherwise
+     * not be visible to Depot; this method helps mask it.
+     */
+    public abstract boolean isPrivateColumn (String column);
+
     /**
      * Overridden by subclasses to create a dialect-specific {@link BuildVisitor}.
      */