本文整理了Java中org.apache.calcite.rel.core.Aggregate.estimateRowCount()方法的一些代码示例，展示了Aggregate.estimateRowCount()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Aggregate.estimateRowCount()方法的具体详情如下：
包路径：org.apache.calcite.rel.core.Aggregate
类名称：Aggregate
方法名：estimateRowCount

Aggregate.estimateRowCount介绍

暂无

代码示例

代码示例来源：origin: dremio/dremio-oss

@Override
public Double getRowCount(Aggregate rel, RelMetadataQuery mq) {
 ImmutableBitSet groupKey = ImmutableBitSet.range(rel.getGroupCount());
 if (groupKey.isEmpty()) {
  return 1.0;
 }
 return rel.estimateRowCount(mq);
}

代码示例来源：origin: Qihoo360/Quicksql

final TileKey tileKey = pair.right;
final RelMetadataQuery mq = call.getMetadataQuery();
final double rowCount = aggregate.estimateRowCount(mq);
final Table aggregateTable = tableEntry.getTable();
final RelDataType aggregateTableRowType =

代码示例来源：origin: org.apache.calcite/calcite-core

final TileKey tileKey = pair.right;
final RelMetadataQuery mq = call.getMetadataQuery();
final double rowCount = aggregate.estimateRowCount(mq);
final Table aggregateTable = tableEntry.getTable();
final RelDataType aggregateTableRowType =