org.apache.calcite.rel.core.Project.getProjects()方法的使用及代码示例

x33g5p2x  于2022-01-26 转载在 其他  
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本文整理了Java中org.apache.calcite.rel.core.Project.getProjects()方法的一些代码示例，展示了Project.getProjects()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。Project.getProjects()方法的具体详情如下：
包路径：org.apache.calcite.rel.core.Project
类名称：Project
方法名：getProjects

Project.getProjects介绍

[英]Returns the project expressions.
[中]返回项目表达式。

代码示例

代码示例来源：origin: apache/hive

/** Returns a literal output field, or null if it is not literal. */
private static RexLiteral projectedLiteral(RelNode rel, int i) {
 if (rel instanceof Project) {
  final Project project = (Project) rel;
  final RexNode node = project.getProjects().get(i);
  if (node instanceof RexLiteral) {
   return (RexLiteral) node;
  }
 }
 return null;
}

代码示例来源：origin: apache/drill

/** Returns a literal output field, or null if it is not literal. */
private static RexLiteral projectedLiteral(RelNode rel, int i) {
 if (rel instanceof Project) {
  final Project project = (Project) rel;
  final RexNode node = project.getProjects().get(i);
  if (node instanceof RexLiteral) {
   return (RexLiteral) node;
  }
 }
 return null;
}

代码示例来源：origin: apache/drill

private boolean isSimple(Project project) {
 RexNode r = project.getProjects().get(joinKey);
 if (r instanceof RexInputRef) {
  joinKey = ((RexInputRef) r).getIndex();
  return true;
 }
 return false;
}

代码示例来源：origin: apache/hive

private static boolean isTrivial(Project project, Intersect intersect) {
 return RexUtil.isIdentity(project.getProjects(), intersect.getRowType());
}

代码示例来源：origin: apache/drill

private static boolean isTrivial(Project project, Intersect intersect) {
 return RexUtil.isIdentity(project.getProjects(), intersect.getRowType());
}

代码示例来源：origin: apache/hive

private boolean isSimple(Project project) {
 ImmutableBitSet.Builder b = ImmutableBitSet.builder();
 for (int pos : joinKey) {
  RexNode r = project.getProjects().get(pos);
  if (!(r instanceof RexInputRef)) {
   return false;
  }
  b.set(((RexInputRef) r).getIndex());
 }
 joinKey = b.build();
 return true;
}

代码示例来源：origin: apache/hive

public boolean apply(RelNode relNode) {
  if (relNode instanceof Project) {
   Project project = (Project)relNode;
   for (RexNode node : project.getProjects()) {
    try {
     node.accept(INSTANCE);
    } catch (Util.FoundOne e) {
     return true;
    }
   }
   return false;
  } else if (relNode instanceof Filter) {
   try {
    ((Filter)relNode).getCondition().accept(INSTANCE);
    return false;
   } catch (Util.FoundOne e) {
    return true;
   }
  }
  return false;
 }
};

代码示例来源：origin: apache/hive

/**
 * Variant of {@link #trimFields(RelNode, ImmutableBitSet, Set)} for
 * {@link org.apache.calcite.rel.logical.LogicalProject}.
 */
public TrimResult trimFields(Project project, ImmutableBitSet fieldsUsed,
  Set<RelDataTypeField> extraFields) {
 // set columnAccessInfo for ViewColumnAuthorization
 for (Ord<RexNode> ord : Ord.zip(project.getProjects())) {
  if (fieldsUsed.get(ord.i)) {
   if (this.columnAccessInfo != null && this.viewProjectToTableSchema != null
     && this.viewProjectToTableSchema.containsKey(project)) {
    Table tab = this.viewProjectToTableSchema.get(project);
    this.columnAccessInfo.add(tab.getCompleteName(), tab.getAllCols().get(ord.i).getName());
   }
  }
 }
 return super.trimFields(project, fieldsUsed, extraFields);
}

代码示例来源：origin: apache/drill

/**
 * Variant of {@link #trimFields(RelNode, ImmutableBitSet, Set)} for
 * {@link org.apache.calcite.rel.logical.LogicalProject}.
 */
public TrimResult trimFields(Project project, ImmutableBitSet fieldsUsed,
  Set<RelDataTypeField> extraFields) {
 // set columnAccessInfo for ViewColumnAuthorization
 for (Ord<RexNode> ord : Ord.zip(project.getProjects())) {
  if (fieldsUsed.get(ord.i)) {
   if (this.columnAccessInfo != null && this.viewProjectToTableSchema != null
     && this.viewProjectToTableSchema.containsKey(project)) {
    Table tab = this.viewProjectToTableSchema.get(project);
    this.columnAccessInfo.add(tab.getCompleteName(), tab.getCols().get(ord.i).getName());
   }
  }
 }
 return super.trimFields(project, fieldsUsed, extraFields);
}

代码示例来源：origin: apache/hive

@Override
public void onMatch(RelOptRuleCall call) {
 final Project project = call.rel(0);
 boolean changed = false;
 final RexBuilder rexBuilder = project.getCluster().getRexBuilder();
 List<RexNode> newProjects = new ArrayList<>();
 for (RexNode oldNode : project.getProjects()) {
  RexNode newNode = analyzeRexNode(rexBuilder, oldNode);
  if (!newNode.toString().equals(oldNode.toString())) {
   changed = true;
   newProjects.add(newNode);
  } else {
   newProjects.add(oldNode);
  }
 }
 if (!changed) {
  return;
 }
 Project newProject = project.copy(project.getTraitSet(), project.getInput(), newProjects,
   project.getRowType(), project.getFlags());
 call.transformTo(newProject);
}

代码示例来源：origin: apache/storm

@Override
  public RelNode convert(RelNode rel) {
    final Project project = (Project) rel;
    final RelNode input = project.getInput();

    return new StreamsProjectRel(project.getCluster(),
                   project.getTraitSet().replace(StreamsLogicalConvention.INSTANCE),
                   convert(input, input.getTraitSet().replace(StreamsLogicalConvention.INSTANCE)), project.getProjects(),
                   project.getRowType());
  }
}

代码示例来源：origin: apache/hive

List<RexNode> projExprs = project.getProjects();
if (projExprs.size() != 1) {
 return;

代码示例来源：origin: apache/drill

public void onMatch(RelOptRuleCall call) {
    final Project project = call.rel(0);
    //TODO: replace HiveSubQRemoveRelBuilder with calcite's once calcite 1.11.0 is released
    final HiveSubQRemoveRelBuilder builder = new HiveSubQRemoveRelBuilder(null, call.rel(0).getCluster(), null);
    final RexSubQuery e =
        RexUtil.SubQueryFinder.find(project.getProjects());
    assert e != null;
    final RelOptUtil.Logic logic =
        LogicVisitor.find(RelOptUtil.Logic.TRUE_FALSE_UNKNOWN,
            project.getProjects(), e);
    builder.push(project.getInput());
    final int fieldCount = builder.peek().getRowType().getFieldCount();
    final RexNode target = apply(e, HiveFilter.getVariablesSet(e),
        logic, builder, 1, fieldCount, false);
    final RexShuttle shuttle = new ReplaceSubQueryShuttle(e, target);
    builder.project(shuttle.apply(project.getProjects()),
        project.getRowType().getFieldNames());
    call.transformTo(builder.build());
  }
};

代码示例来源：origin: apache/hive

final Project project = call.rel(1);
if (RexOver.containsOver(project.getProjects(), null)) {
  project.getProjects(), project.getRowType()) : projectFactory.createProject(newFilterRel,
  project.getProjects(), project.getRowType().getFieldNames());

代码示例来源：origin: apache/incubator-druid

} else {
 final List<RexNode> newProjectRexNodes = RelOptUtil.pushPastProject(
   newSelectProject.getProjects(),
   selectProject
 );

代码示例来源：origin: apache/hive

private static RelNode getNewProject(RexNode filterCondToPushBelowProj, RexNode unPushedFilCondAboveProj, Project oldProj,
  RelDataTypeFactory typeFactory, RelBuilder relBuilder) {
 // convert the filter to one that references the child of the project
 RexNode newPushedCondition = RelOptUtil.pushPastProject(filterCondToPushBelowProj, oldProj);
 // Remove cast of BOOLEAN NOT NULL to BOOLEAN or vice versa. Filter accepts
 // nullable and not-nullable conditions, but a CAST might get in the way of
 // other rewrites.
 if (RexUtil.isNullabilityCast(typeFactory, newPushedCondition)) {
  newPushedCondition = ((RexCall) newPushedCondition).getOperands().get(0);
 }
 RelNode newPushedFilterRel = relBuilder.push(oldProj.getInput()).filter(newPushedCondition).build();
 RelNode newProjRel = relBuilder.push(newPushedFilterRel)
   .project(oldProj.getProjects(), oldProj.getRowType().getFieldNames()).build();
 if (unPushedFilCondAboveProj != null) {
  // Remove cast of BOOLEAN NOT NULL to BOOLEAN or vice versa. Filter accepts
  // nullable and not-nullable conditions, but a CAST might get in the way of
  // other rewrites.
  if (RexUtil.isNullabilityCast(typeFactory, newPushedCondition)) {
   unPushedFilCondAboveProj = ((RexCall) unPushedFilCondAboveProj).getOperands().get(0);
  }
  newProjRel = relBuilder.push(newProjRel).filter(unPushedFilCondAboveProj).build();
 }
 return newProjRel;
}

代码示例来源：origin: apache/drill

public void onMatch(RelOptRuleCall call) {
  final Filter filter = call.rel(0);
  final Project project = call.rel(1);
  final List<RexNode> newProjects = new ArrayList<>(project.getProjects());
  newProjects.add(filter.getCondition());
  final RelOptCluster cluster = filter.getCluster();
  RelDataType newRowType =
    cluster.getTypeFactory().builder()
      .addAll(project.getRowType().getFieldList())
      .add("condition", Util.last(newProjects).getType())
      .build();
  final RelNode newProject =
    project.copy(project.getTraitSet(),
      project.getInput(),
      newProjects,
      newRowType);
  final RexInputRef newCondition =
    cluster.getRexBuilder().makeInputRef(newProject,
      newProjects.size() - 1);
  call.transformTo(filter.copy(filter.getTraitSet(), newProject, newCondition));
 }
}

代码示例来源：origin: apache/drill

private static RelNode getNewProject(RexNode filterCondToPushBelowProj, RexNode unPushedFilCondAboveProj, Project oldProj,
  RelDataTypeFactory typeFactory, RelBuilder relBuilder) {
 // convert the filter to one that references the child of the project
 RexNode newPushedCondition = RelOptUtil.pushPastProject(filterCondToPushBelowProj, oldProj);
 // Remove cast of BOOLEAN NOT NULL to BOOLEAN or vice versa. Filter accepts
 // nullable and not-nullable conditions, but a CAST might get in the way of
 // other rewrites.
 if (RexUtil.isNullabilityCast(typeFactory, newPushedCondition)) {
  newPushedCondition = ((RexCall) newPushedCondition).getOperands().get(0);
 }
 RelNode newPushedFilterRel = relBuilder.push(oldProj.getInput()).filter(newPushedCondition).build();
 RelNode newProjRel = relBuilder.push(newPushedFilterRel)
   .project(oldProj.getProjects(), oldProj.getRowType().getFieldNames()).build();
 if (unPushedFilCondAboveProj != null) {
  // Remove cast of BOOLEAN NOT NULL to BOOLEAN or vice versa. Filter accepts
  // nullable and not-nullable conditions, but a CAST might get in the way of
  // other rewrites.
  if (RexUtil.isNullabilityCast(typeFactory, newPushedCondition)) {
   unPushedFilCondAboveProj = ((RexCall) unPushedFilCondAboveProj).getOperands().get(0);
  }
  newProjRel = relBuilder.push(newProjRel).filter(unPushedFilCondAboveProj).build();
 }
 return newProjRel;
}

代码示例来源：origin: apache/hive

for(RexNode project:topProject.getProjects()) {
 RexNode newProject = project.accept(new RelOptUtil.RexInputConverter(rexBuilder, swappedJoinFeilds,
                                    swappedJoinFeilds, condAdjustments));

代码示例来源：origin: apache/incubator-druid

RelOptUtil.InputFinder.bits(project.getProjects(), null);
final ImmutableBitSet rightBits =
  ImmutableBitSet.range(
    .project(project.getProjects(), project.getRowType().getFieldNames())
    .build()
);

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