private TableSubQueryNode visitCommonTableSubquery(PlanContext context, Stack<Expr> stack, CommonSubquery expr) throws TajoException { QueryBlock currentBlock = context.queryBlock; QueryBlock childBlock = context.plan.getBlock(context.plan.getBlockNameByExpr(expr.getSubQuery())); context.plan.connectBlocks(childBlock, currentBlock, BlockType.TableSubQuery); PlanContext newContext = new PlanContext(context, childBlock); context.plan.connectBlocks(childBlock, context.queryBlock, BlockType.TableSubQuery); LogicalNode child = visit(newContext, new Stack<Expr>(), expr.getSubQuery()); TableSubQueryNode subQueryNode = currentBlock.getNodeFromExpr(expr); subQueryNode.setSubQuery(child); setTargetOfTableSubQuery(context, currentBlock, subQueryNode); return subQueryNode; }
private TableSubQueryNode visitCommonTableSubquery(PlanContext context, Stack<Expr> stack, CommonSubquery expr) throws TajoException { QueryBlock currentBlock = context.queryBlock; QueryBlock childBlock = context.plan.getBlock(context.plan.getBlockNameByExpr(expr.getSubQuery())); context.plan.connectBlocks(childBlock, currentBlock, BlockType.TableSubQuery); PlanContext newContext = new PlanContext(context, childBlock); context.plan.connectBlocks(childBlock, context.queryBlock, BlockType.TableSubQuery); LogicalNode child = visit(newContext, new Stack<>(), expr.getSubQuery()); TableSubQueryNode subQueryNode = currentBlock.getNodeFromExpr(expr); subQueryNode.setSubQuery(child); setTargetOfTableSubQuery(context, currentBlock, subQueryNode); return subQueryNode; }
stack.pop(); context.plan.connectBlocks(leftContext.queryBlock, context.queryBlock, BlockType.TableSubQuery); stack.pop(); context.plan.connectBlocks(rightContext.queryBlock, context.queryBlock, BlockType.TableSubQuery);
stack.pop(); context.plan.connectBlocks(leftContext.queryBlock, context.queryBlock, BlockType.TableSubQuery); stack.pop(); context.plan.connectBlocks(rightContext.queryBlock, context.queryBlock, BlockType.TableSubQuery);
private ProjectionNode makeProjectionForInsertUnion(PlanContext context, InsertNode insertNode) { LogicalNode child = insertNode.getChild(); // add (projection - subquery) to RootBlock and create new QueryBlock for UnionNode TableSubQueryNode subQueryNode = context.plan.createNode(TableSubQueryNode.class); subQueryNode.init(context.queryBlock.getName(), child); subQueryNode.setTargets(PlannerUtil.schemaToTargets(subQueryNode.getOutSchema())); ProjectionNode projectionNode = context.plan.createNode(ProjectionNode.class); projectionNode.setChild(subQueryNode); projectionNode.setInSchema(subQueryNode.getInSchema()); projectionNode.setTargets(subQueryNode.getTargets()); context.queryBlock.registerNode(projectionNode); context.queryBlock.registerNode(subQueryNode); // add child QueryBlock to the UnionNode's QueryBlock UnionNode unionNode = (UnionNode)child; context.queryBlock.unregisterNode(unionNode); QueryBlock unionBlock = context.plan.newQueryBlock(); unionBlock.registerNode(unionNode); unionBlock.setRoot(unionNode); QueryBlock leftBlock = context.plan.getBlock(unionNode.getLeftChild()); QueryBlock rightBlock = context.plan.getBlock(unionNode.getRightChild()); context.plan.disconnectBlocks(leftBlock, context.queryBlock); context.plan.disconnectBlocks(rightBlock, context.queryBlock); context.plan.connectBlocks(unionBlock, context.queryBlock, BlockType.TableSubQuery); context.plan.connectBlocks(leftBlock, unionBlock, BlockType.TableSubQuery); context.plan.connectBlocks(rightBlock, unionBlock, BlockType.TableSubQuery); // set InsertNode's child with ProjectionNode which is created. insertNode.setChild(projectionNode); return projectionNode; }
private ProjectionNode makeProjectionForInsertUnion(PlanContext context, InsertNode insertNode) { LogicalNode child = insertNode.getChild(); // add (projection - subquery) to RootBlock and create new QueryBlock for UnionNode TableSubQueryNode subQueryNode = context.plan.createNode(TableSubQueryNode.class); subQueryNode.init(context.queryBlock.getName(), child); subQueryNode.setTargets(PlannerUtil.schemaToTargets(subQueryNode.getOutSchema())); ProjectionNode projectionNode = context.plan.createNode(ProjectionNode.class); projectionNode.setChild(subQueryNode); projectionNode.setInSchema(subQueryNode.getInSchema()); projectionNode.setTargets(subQueryNode.getTargets()); context.queryBlock.registerNode(projectionNode); context.queryBlock.registerNode(subQueryNode); // add child QueryBlock to the UnionNode's QueryBlock UnionNode unionNode = (UnionNode)child; context.queryBlock.unregisterNode(unionNode); QueryBlock unionBlock = context.plan.newQueryBlock(); unionBlock.registerNode(unionNode); unionBlock.setRoot(unionNode); QueryBlock leftBlock = context.plan.getBlock(unionNode.getLeftChild()); QueryBlock rightBlock = context.plan.getBlock(unionNode.getRightChild()); context.plan.disconnectBlocks(leftBlock, context.queryBlock); context.plan.disconnectBlocks(rightBlock, context.queryBlock); context.plan.connectBlocks(unionBlock, context.queryBlock, BlockType.TableSubQuery); context.plan.connectBlocks(leftBlock, unionBlock, BlockType.TableSubQuery); context.plan.connectBlocks(rightBlock, unionBlock, BlockType.TableSubQuery); // set InsertNode's child with ProjectionNode which is created. insertNode.setChild(projectionNode); return projectionNode; }
context.plan.disconnectBlocks(rightBlock, context.queryBlock); context.plan.connectBlocks(setOpBlock, context.queryBlock, BlockType.TableSubQuery); context.plan.connectBlocks(leftBlock, setOpBlock, BlockType.TableSubQuery); context.plan.connectBlocks(rightBlock, setOpBlock, BlockType.TableSubQuery);
context.plan.disconnectBlocks(rightBlock, context.queryBlock); context.plan.connectBlocks(setOpBlock, context.queryBlock, BlockType.TableSubQuery); context.plan.connectBlocks(leftBlock, setOpBlock, BlockType.TableSubQuery); context.plan.connectBlocks(rightBlock, setOpBlock, BlockType.TableSubQuery);