Examples with Select io.confluent.ksql.parser.tree.Select used on opensource projects

Example 1 with Select

use of io.confluent.ksql.parser.tree.Select in project ksql by confluentinc.

the class AstBuilder method visitQuerySpecification.

@Override
public Node visitQuerySpecification(SqlBaseParser.QuerySpecificationContext context) {
    Table into;
    if (context.into != null) {
        into = (Table) visit(context.into);
    } else {
        // TODO: Generate a unique name
        String intoName = "KSQL_Stream_" + System.currentTimeMillis();
        into = new Table(QualifiedName.of(intoName), true);
    }
    Relation from = (Relation) visit(context.from);
    Select select = new Select(getLocation(context.SELECT()), false, visit(context.selectItem(), SelectItem.class));
    select = new Select(getLocation(context.SELECT()), select.isDistinct(), extractSelectItems(select, from));
    getResultDatasource(select, into);
    return new QuerySpecification(getLocation(context), select, into, from, visitIfPresent(context.windowExpression(), WindowExpression.class), visitIfPresent(context.where, Expression.class), visitIfPresent(context.groupBy(), GroupBy.class), visitIfPresent(context.having, Expression.class), Optional.<String>empty());
}