Examples of org.lealone.command.dml.SelectUnion

    }


    private Query parseSelectUnionExtension(Query command, int start, boolean unionOnly) {
        while (true) {
            if (readIf("UNION")) {
                SelectUnion union = new SelectUnion(session, command);
                if (readIf("ALL")) {
                    union.setUnionType(SelectUnion.UNION_ALL);
                } else {
                    readIf("DISTINCT");
                    union.setUnionType(SelectUnion.UNION);
                }
                union.setRight(parseSelectSub());
                command = union;
            } else if (readIf("MINUS") || readIf("EXCEPT")) {
                SelectUnion union = new SelectUnion(session, command);
                union.setUnionType(SelectUnion.EXCEPT);
                union.setRight(parseSelectSub());
                command = union;
            } else if (readIf("INTERSECT")) {
                SelectUnion union = new SelectUnion(session, command);
                union.setUnionType(SelectUnion.INTERSECT);
                union.setRight(parseSelectSub());
                command = union;
            } else {
                break;
            }
        }

                planSQL = query.getPlanSQL();
            }
            if (!(query instanceof SelectUnion)) {
                throw DbException.get(ErrorCode.SYNTAX_ERROR_2, "recursive queries without UNION ALL");
            }
            SelectUnion union = (SelectUnion) query;
            if (union.getUnionType() != SelectUnion.UNION_ALL) {
                throw DbException.get(ErrorCode.SYNTAX_ERROR_2, "recursive queries without UNION ALL");
            }
            Query left = union.getLeft();
            // to ensure the last result is not closed
            left.disableCache();
            LocalResult r = (LocalResult) left.query(0);
            LocalResult result = union.getEmptyResult();
            while (r.next()) {
                result.addRow(r.currentRow());
            }
            Query right = union.getRight();
            r.reset();
            view.setRecursiveResult(r);
            // to ensure the last result is not closed
            right.disableCache();
            while (true) {

Examples of org.lealone.command.dml.SelectUnion

Related Classes of org.lealone.command.dml.SelectUnion