How to use

org.apache.calcite.adapter.druid.DruidSchema

constructor

  rowType, viewTable, nonPartitionColumns, partitionColumns, new ArrayList<>(),
  conf, new HashMap<>(), new HashMap<>(), new AtomicInteger());
DruidTable druidTable = new DruidTable(new DruidSchema(address, address, false),
  dataSource, RelDataTypeImpl.proto(rowType), metrics, DruidTable.DEFAULT_TIMESTAMP_COLUMN,
  intervals, null, null);

DruidTable druidTable = new DruidTable(new DruidSchema(address, address, false),
  dataSource, RelDataTypeImpl.proto(rowType), metrics, DruidTable.DEFAULT_TIMESTAMP_COLUMN, intervals);
final TableScan scan = new HiveTableScan(cluster, cluster.traitSetOf(HiveRelNode.CONVENTION),

DruidTable druidTable = new DruidTable(new DruidSchema(address, address, false),
    dataSource, RelDataTypeImpl.proto(rowType), metrics, DruidTable.DEFAULT_TIMESTAMP_COLUMN, intervals);
final TableScan scan = new HiveTableScan(cluster, cluster.traitSetOf(HiveRelNode.CONVENTION),

DruidTable druidTable = new DruidTable(new DruidSchema(address, address, false),
  dataSource, RelDataTypeImpl.proto(rowType), metrics, DruidTable.DEFAULT_TIMESTAMP_COLUMN,
  intervals, null, null);

 public Schema create(SchemaPlus parentSchema, String name,
            Map<String, Object> operand) {
  final String url = operand.get("url") instanceof String
    ? (String) operand.get("url")
    : DEFAULT_URL;
  final String coordinatorUrl = operand.get("coordinatorUrl") instanceof String
    ? (String) operand.get("coordinatorUrl")
    : url.replace(":8082", ":8081");
  // "tables" is a hidden attribute, copied in from the enclosing custom
  // schema
  final boolean containsTables = operand.get("tables") instanceof List
    && ((List) operand.get("tables")).size() > 0;
  return new DruidSchema(url, coordinatorUrl, !containsTables);
 }
}

 public Schema create(SchemaPlus parentSchema, String name,
   Map<String, Object> operand) {
  final String url = operand.get("url") instanceof String
    ? (String) operand.get("url")
    : DEFAULT_URL;
  final String coordinatorUrl = operand.get("coordinatorUrl") instanceof String
    ? (String) operand.get("coordinatorUrl")
    : url.replace(":8082", ":8081");
  // "tables" is a hidden attribute, copied in from the enclosing custom
  // schema
  final boolean containsTables = operand.get("tables") instanceof List
    && ((List) operand.get("tables")).size() > 0;
  return new DruidSchema(url, coordinatorUrl, !containsTables);
 }
}

/**
 * Test to make sure that the mapping from a Table name to a Table returned from
 * {@link org.apache.calcite.adapter.druid.DruidSchema} is always the same Java object.
 * */
@Test public void testTableMapReused() {
 AbstractSchema schema = new DruidSchema(
   "http://localhost:8082", "http://localhost:8081", true);
 assertSame(schema.getTable("wikiticker"), schema.getTable("wikiticker"));
}

/**
 * Test to make sure that the mapping from a Table name to a Table returned from
 * {@link org.apache.calcite.adapter.druid.DruidSchema} is always the same Java object.
 * */
@Test public void testTableMapReused() {
 AbstractSchema schema = new DruidSchema("http://localhost:8082", "http://localhost:8081", true);
 assertSame(schema.getTable("wikiticker"), schema.getTable("wikiticker"));
}