Examples with TpchColumn io.airlift.tpch.TpchColumn used on opensource projects

Example 1 with TpchColumn

use of io.airlift.tpch.TpchColumn in project presto by prestodb.

the class HiveFileFormatBenchmark method createTpchDataSet.

private static <E extends TpchEntity> TestData createTpchDataSet(FileFormat format, TpchTable<E> tpchTable, List<TpchColumn<E>> columns) {
    List<String> columnNames = columns.stream().map(TpchColumn::getColumnName).collect(toList());
    List<Type> columnTypes = columns.stream().map(HiveFileFormatBenchmark::getColumnType).map(type -> format.supportsDate() || !DATE.equals(type) ? type : createUnboundedVarcharType()).collect(toList());
    PageBuilder pageBuilder = new PageBuilder(columnTypes);
    ImmutableList.Builder<Page> pages = ImmutableList.builder();
    long dataSize = 0;
    for (E row : tpchTable.createGenerator(10, 1, 1)) {
        pageBuilder.declarePosition();
        for (int i = 0; i < columns.size(); i++) {
            TpchColumn<E> column = columns.get(i);
            BlockBuilder blockBuilder = pageBuilder.getBlockBuilder(i);
            switch(column.getType().getBase()) {
                case IDENTIFIER:
                    BIGINT.writeLong(blockBuilder, column.getIdentifier(row));
                    break;
                case INTEGER:
                    INTEGER.writeLong(blockBuilder, column.getInteger(row));
                    break;
                case DATE:
                    if (format.supportsDate()) {
                        DATE.writeLong(blockBuilder, column.getDate(row));
                    } else {
                        createUnboundedVarcharType().writeString(blockBuilder, column.getString(row));
                    }
                    break;
                case DOUBLE:
                    DOUBLE.writeDouble(blockBuilder, column.getDouble(row));
                    break;
                case VARCHAR:
                    createUnboundedVarcharType().writeSlice(blockBuilder, Slices.utf8Slice(column.getString(row)));
                    break;
                default:
                    throw new IllegalArgumentException("Unsupported type " + column.getType());
            }
        }
        if (pageBuilder.isFull()) {
            Page page = pageBuilder.build();
            pages.add(page);
            pageBuilder.reset();
            dataSize += page.getSizeInBytes();
            if (dataSize >= MIN_DATA_SIZE) {
                break;
            }
        }
    }
    return new TestData(columnNames, columnTypes, pages.build());
}

Example 2 with TpchColumn

use of io.airlift.tpch.TpchColumn in project presto by prestodb.

the class ThriftTpchService method getTableMetadata.

@Override
public final PrestoThriftNullableTableMetadata getTableMetadata(PrestoThriftSchemaTableName schemaTableName) {
    String schemaName = schemaTableName.getSchemaName();
    String tableName = schemaTableName.getTableName();
    if (!SCHEMAS.contains(schemaName) || TpchTable.getTables().stream().noneMatch(table -> table.getTableName().equals(tableName))) {
        return new PrestoThriftNullableTableMetadata(null);
    }
    TpchTable<?> tpchTable = TpchTable.getTable(schemaTableName.getTableName());
    List<PrestoThriftColumnMetadata> columns = new ArrayList<>();
    for (TpchColumn<? extends TpchEntity> column : tpchTable.getColumns()) {
        columns.add(new PrestoThriftColumnMetadata(column.getSimplifiedColumnName(), getTypeString(column), null, false));
    }
    List<Set<String>> indexableKeys = getIndexableKeys(schemaName, tableName);
    return new PrestoThriftNullableTableMetadata(new PrestoThriftTableMetadata(schemaTableName, columns, null, !indexableKeys.isEmpty() ? indexableKeys : null));
}