public RelNode toRel(RelOptTable.ToRelContext context,
RelOptTable relOptTable) {
final RelOptCluster cluster = context.getCluster();
final TableScan scan = LogicalTableScan.create(cluster, relOptTable);
return DruidQuery.create(cluster,
cluster.traitSetOf(BindableConvention.INSTANCE), relOptTable, this,
ImmutableList.<RelNode>of(scan));
}
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