本文整理了Java中org.apache.calcite.plan.RelOptUtil.createExistsPlan方法的一些代码示例，展示了RelOptUtil.createExistsPlan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。RelOptUtil.createExistsPlan方法的具体详情如下：
包路径：org.apache.calcite.plan.RelOptUtil
类名称：RelOptUtil
方法名：createExistsPlan

RelOptUtil.createExistsPlan介绍

[英]Creates a plan suitable for use in EXISTS or IN statements.
[中]创建适合在EXISTS或IN语句中使用的计划。

代码示例

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

@Deprecated // to be removed before 2.0
public static Exists createExistsPlan(
  RelNode seekRel,
  SubQueryType subQueryType,
  Logic logic,
  boolean notIn) {
 final RelBuilder relBuilder =
   RelFactories.LOGICAL_BUILDER.create(seekRel.getCluster(), null);
 return createExistsPlan(seekRel, subQueryType, logic, notIn, relBuilder);
}

代码示例来源：origin: Qihoo360/Quicksql

@Deprecated // to be removed before 2.0
public static Exists createExistsPlan(
  RelNode seekRel,
  SubQueryType subQueryType,
  Logic logic,
  boolean notIn) {
 final RelBuilder relBuilder =
   RelFactories.LOGICAL_BUILDER.create(seekRel.getCluster(), null);
 return createExistsPlan(seekRel, subQueryType, logic, notIn, relBuilder);
}

代码示例来源：origin: Qihoo360/Quicksql

RelNode seekRel = convertQueryOrInList(seekBb, seek, targetDataType);
return RelOptUtil.createExistsPlan(seekRel,
  subQueryType, logic, notIn, relBuilder);

代码示例来源：origin: org.apache.flink/flink-table_2.10

/**
 * Converts an EXISTS or IN predicate into a join. For EXISTS, the sub-query
 * produces an indicator variable, and the result is a relational expression
 * which outer joins that indicator to the original query. After performing
 * the outer join, the condition will be TRUE if the EXISTS condition holds,
 * NULL otherwise.
 *
 * @param seek           A query, for example 'select * from emp' or
 *                       'values (1,2,3)' or '('Foo', 34)'.
 * @param subQueryType   Whether sub-query is IN, EXISTS or scalar
 * @param logic Whether the answer needs to be in full 3-valued logic (TRUE,
 *     FALSE, UNKNOWN) will be required, or whether we can accept an
 *     approximation (say representing UNKNOWN as FALSE)
 * @param notIn Whether the operation is NOT IN
 * @return join expression
 */
private RelOptUtil.Exists convertExists(
  SqlNode seek,
  RelOptUtil.SubQueryType subQueryType,
  RelOptUtil.Logic logic,
  boolean notIn,
  RelDataType targetDataType) {
  final SqlValidatorScope seekScope =
    (seek instanceof SqlSelect)
      ? validator.getSelectScope((SqlSelect) seek)
      : null;
  final Blackboard seekBb = createBlackboard(seekScope, null, false);
  RelNode seekRel = convertQueryOrInList(seekBb, seek, targetDataType);
  return RelOptUtil.createExistsPlan(seekRel, subQueryType, logic, notIn);
}

代码示例来源：origin: org.apache.kylin/atopcalcite

/**
 * Converts an EXISTS or IN predicate into a join. For EXISTS, the sub-query
 * produces an indicator variable, and the result is a relational expression
 * which outer joins that indicator to the original query. After performing
 * the outer join, the condition will be TRUE if the EXISTS condition holds,
 * NULL otherwise.
 *
 * @param seek           A query, for example 'select * from emp' or
 *                       'values (1,2,3)' or '('Foo', 34)'.
 * @param subQueryType   Whether sub-query is IN, EXISTS or scalar
 * @param logic Whether the answer needs to be in full 3-valued logic (TRUE,
 *     FALSE, UNKNOWN) will be required, or whether we can accept an
 *     approximation (say representing UNKNOWN as FALSE)
 * @param notIn Whether the operation is NOT IN
 * @return join expression
 */
private RelOptUtil.Exists convertExists(
  SqlNode seek,
  RelOptUtil.SubQueryType subQueryType,
  RelOptUtil.Logic logic,
  boolean notIn,
  RelDataType targetDataType) {
 final SqlValidatorScope seekScope =
   (seek instanceof SqlSelect)
     ? validator.getSelectScope((SqlSelect) seek)
     : null;
 final Blackboard seekBb = createBlackboard(seekScope, null, false);
 RelNode seekRel = convertQueryOrInList(seekBb, seek, targetDataType);
 return RelOptUtil.createExistsPlan(seekRel, subQueryType, logic, notIn);
}

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

RelNode seekRel = convertQueryOrInList(seekBb, seek, targetDataType);
return RelOptUtil.createExistsPlan(seekRel,
  subQueryType, logic, notIn, relBuilder);