Examples with MycatLogicTable io.mycat.calcite.table.MycatLogicTable used on opensource projects

Example 6 with MycatLogicTable

use of io.mycat.calcite.table.MycatLogicTable in project Mycat2 by MyCATApache.

the class HBTQueryConvertor method fromTable.

private RelNode fromTable(FromTableSchema input) {
    List<String> collect = new ArrayList<>(input.getNames());
    RelNode build = relBuilder.scan(collect).as(collect.get(collect.size() - 1)).build();
    MycatLogicTable mycatLogicTable = build.getTable().unwrap(MycatLogicTable.class);
    // 消除逻辑表,变成物理表
    if (mycatLogicTable != null) {
        relBuilder.clear();
        Stream<Map<String, Partition>> dataNodes = mycatLogicTable.createDistribution().getDataNodes();
        return toPhyTable(mycatLogicTable, dataNodes.flatMap(i -> i.values().stream()).collect(Collectors.toList()));
    }
    return build;
}

Example 7 with MycatLogicTable

use of io.mycat.calcite.table.MycatLogicTable in project Mycat2 by MyCATApache.

the class VisualTablePlanImpl method execute.

@Override
public Observable<VectorSchemaRoot> execute(RootContext rootContext) {
    RelOptTable table = relNode.getRelNode().getTable();
    MycatLogicTable logicTable = table.unwrap(MycatLogicTable.class);
    TableHandler tableHandler = logicTable.getTable();
    VisualTableHandler visualTableHandler = (VisualTableHandler) tableHandler;
    MetadataManager metadataManager = MetaClusterCurrent.wrapper(MetadataManager.class);
    MycatRelDataType mycatRelDataTypeByCalcite = relNode.getMycatRelDataTypeByCalcite();
    Schema schema = toArrowSchema(mycatRelDataTypeByCalcite);
    return ValuesPlan.create(schema, MycatRxJavaUtl.blockingIterable(visualTableHandler.scanAll())).execute(rootContext);
}