Examples with SQLAllColumnExpr com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr used on opensource projects

Example 21 with SQLAllColumnExpr

use of com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr in project druid by alibaba.

the class Resolve_AllColumn_Test method test_resolve.

public void test_resolve() throws Exception {
    SchemaRepository repository = new SchemaRepository(DbType.mysql);
    repository.acceptDDL("create table t_emp(emp_id bigint, name varchar(20));");
    SQLStatement stmt = SQLUtils.parseSingleMysqlStatement("select * from t_emp");
    repository.resolve(stmt, SchemaResolveVisitor.Option.ResolveAllColumn);
    assertEquals("SELECT emp_id, name\n" + "FROM t_emp", stmt.toString());
    SQLSelectQueryBlock queryBlock = ((SQLSelectStatement) stmt).getSelect().getQueryBlock();
    SQLIdentifierExpr expr = (SQLIdentifierExpr) queryBlock.getSelectList().get(0).getExpr();
    assertNotNull(expr.getResolvedColumn());
    new SQLASTVisitorAdapter() {

        public boolean visit(SQLSelectQueryBlock queryBlock) {
            final List<SQLSelectItem> selectList = queryBlock.getSelectList();
            for (int i = 0; i < selectList.size(); i++) {
                final SQLSelectItem selectItem = selectList.get(i);
                final SQLExpr expr = selectItem.getExpr();
                if (expr instanceof SQLAllColumnExpr) {
                } else if (expr instanceof SQLPropertyExpr && ((SQLPropertyExpr) expr).getName().equals("*")) {
                }
            }
            return true;
        }
    };
}