Examples with VIRTUAL_VIEW com.facebook.presto.hive.metastore.PrestoTableType.VIRTUAL_VIEW used on opensource projects

Example 1 with VIRTUAL_VIEW

use of com.facebook.presto.hive.metastore.PrestoTableType.VIRTUAL_VIEW in project presto by prestodb.

the class HiveMetadata method getPropertiesSystemTable.

private Optional<SystemTable> getPropertiesSystemTable(ConnectorSession session, SchemaTableName tableName, SchemaTableName sourceTableName) {
    MetastoreContext metastoreContext = getMetastoreContext(session);
    Optional<Table> table = metastore.getTable(metastoreContext, sourceTableName.getSchemaName(), sourceTableName.getTableName());
    if (!table.isPresent() || table.get().getTableType().equals(VIRTUAL_VIEW)) {
        throw new TableNotFoundException(tableName);
    }
    Map<String, String> sortedTableParameters = ImmutableSortedMap.copyOf(table.get().getParameters());
    List<ColumnMetadata> columns = sortedTableParameters.keySet().stream().map(key -> new ColumnMetadata(key, VARCHAR)).collect(toImmutableList());
    List<Type> types = columns.stream().map(ColumnMetadata::getType).collect(toImmutableList());
    Iterable<List<Object>> propertyValues = ImmutableList.of(ImmutableList.copyOf(sortedTableParameters.values()));
    return Optional.of(createSystemTable(new ConnectorTableMetadata(sourceTableName, columns), constraint -> new InMemoryRecordSet(types, propertyValues).cursor()));
}