Examples with LogicalReference com.yahoo.elide.datastores.aggregation.queryengines.sql.expression.LogicalReference used on opensource projects

Example 1 with LogicalReference

use of com.yahoo.elide.datastores.aggregation.queryengines.sql.expression.LogicalReference in project elide by yahoo.

the class QueryPlanTranslator method addHiddenProjections.

public static Query.QueryBuilder addHiddenProjections(MetaDataStore metaDataStore, Query.QueryBuilder builder, Query query) {
    Set<ColumnProjection> directReferencedColumns = Streams.concat(query.getColumnProjections().stream(), query.getFilterProjections(query.getWhereFilter(), ColumnProjection.class).stream()).collect(Collectors.toSet());
    ExpressionParser parser = new ExpressionParser(metaDataStore);
    Set<ColumnProjection> indirectReferenceColumns = new HashSet<>();
    directReferencedColumns.forEach(column -> {
        parser.parse(query.getSource(), column).stream().map(reference -> reference.accept(new ReferenceExtractor<LogicalReference>(LogicalReference.class, metaDataStore, ReferenceExtractor.Mode.SAME_QUERY))).flatMap(Set::stream).map(LogicalReference::getColumn).forEach(indirectReferenceColumns::add);
    });
    Streams.concat(directReferencedColumns.stream(), indirectReferenceColumns.stream()).forEach(column -> {
        if (query.getColumnProjection(column.getAlias(), column.getArguments()) == null) {
            builder.column(column.withProjected(false));
        }
    });
    return builder;
}