FilterPushDownRule fails due to the unsupported index

2015-12-07 18:54:16,054 ERROR org.apache.tajo.catalog.CatalogServer: 
Stack Trace:
java.lang.UnsupportedOperationException
	at org.apache.tajo.catalog.store.HiveCatalogStore.existIndexByColumns(HiveCatalogStore.java:970)
	at org.apache.tajo.catalog.CatalogServer$CatalogProtocolHandler.existIndexByColumnNames(CatalogServer.java:1153)
	at org.apache.tajo.catalog.AbstractCatalogClient.existIndexByColumnNames(AbstractCatalogClient.java:659)
	at org.apache.tajo.catalog.AbstractCatalogClient.existIndexByColumns(AbstractCatalogClient.java:644)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitScan(FilterPushDownRule.java:994)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitScan(FilterPushDownRule.java:52)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:110)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitFilter(FilterPushDownRule.java:135)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitFilter(FilterPushDownRule.java:52)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:92)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visitGroupBy(BasicLogicalPlanVisitor.java:221)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitGroupBy(FilterPushDownRule.java:884)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitGroupBy(FilterPushDownRule.java:52)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:83)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visitSort(BasicLogicalPlanVisitor.java:203)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:77)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitProjection(FilterPushDownRule.java:603)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.visitProjection(FilterPushDownRule.java:52)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:71)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visitRoot(BasicLogicalPlanVisitor.java:163)
	at org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:62)
	at org.apache.tajo.plan.rewrite.rules.FilterPushDownRule.rewrite(FilterPushDownRule.java:118)
	at org.apache.tajo.plan.rewrite.BaseLogicalPlanRewriteEngine.rewrite(BaseLogicalPlanRewriteEngine.java:84)
	at org.apache.tajo.plan.LogicalOptimizer.optimize(LogicalOptimizer.java:87)
	at org.apache.tajo.master.GlobalEngine.createLogicalPlan(GlobalEngine.java:281)
	at org.apache.tajo.master.GlobalEngine.executeQuery(GlobalEngine.java:190)
	at org.apache.tajo.master.TajoMasterClientService$TajoMasterClientProtocolServiceHandler.submitQuery(TajoMasterClientService.java:303)