Examples with SemanticRule org.apache.hadoop.hive.ql.lib.SemanticRule used on opensource projects

Example 26 with SemanticRule

use of org.apache.hadoop.hive.ql.lib.SemanticRule in project hive by apache.

the class AnnotateWithOpTraits method transform.

@Override
public ParseContext transform(ParseContext pctx) throws SemanticException {
    AnnotateOpTraitsProcCtx annotateCtx = new AnnotateOpTraitsProcCtx(pctx);
    // create a walker which walks the tree in a BFS manner while maintaining the
    // operator stack. The dispatcher generates the plan from the operator tree
    Map<SemanticRule, SemanticNodeProcessor> opRules = new LinkedHashMap<SemanticRule, SemanticNodeProcessor>();
    opRules.put(new RuleRegExp("TS", TableScanOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getTableScanRule());
    opRules.put(new RuleRegExp("RS", ReduceSinkOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getReduceSinkRule());
    opRules.put(new RuleRegExp("JOIN", JoinOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getJoinRule());
    opRules.put(new RuleRegExp("MAPJOIN", MapJoinOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getMultiParentRule());
    opRules.put(new RuleRegExp("SMB", SMBMapJoinOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getMultiParentRule());
    opRules.put(new RuleRegExp("MUX", MuxOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getMultiParentRule());
    opRules.put(new RuleRegExp("DEMUX", DemuxOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getMultiParentRule());
    opRules.put(new RuleRegExp("UNION", UnionOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getMultiParentRule());
    opRules.put(new RuleRegExp("GBY", GroupByOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getGroupByRule());
    opRules.put(new RuleRegExp("PTF", PTFOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getPTFRule());
    opRules.put(new RuleRegExp("SEL", SelectOperator.getOperatorName() + "%"), OpTraitsRulesProcFactory.getSelectRule());
    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    SemanticDispatcher disp = new DefaultRuleDispatcher(OpTraitsRulesProcFactory.getDefaultRule(), opRules, annotateCtx);
    SemanticGraphWalker ogw = new LevelOrderWalker(disp, 0);
    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);
    return pctx;
}

Example 27 with SemanticRule

use of org.apache.hadoop.hive.ql.lib.SemanticRule in project hive by apache.

the class PartitionConditionRemover method transform.

/*
   * (non-Javadoc)
   *
   * @see
   * org.apache.hadoop.hive.ql.optimizer.Transform#transform(org.apache.hadoop
   * .hive.ql.parse.ParseContext)
   */
@Override
public ParseContext transform(ParseContext pctx) throws SemanticException {
    // create a the context for walking operators
    List<PcrOpWalkerCtx.OpToDeleteInfo> opToRemove = new ArrayList<PcrOpWalkerCtx.OpToDeleteInfo>();
    PcrOpWalkerCtx opWalkerCtx = new PcrOpWalkerCtx(pctx, opToRemove);
    Map<SemanticRule, SemanticNodeProcessor> opRules = new LinkedHashMap<SemanticRule, SemanticNodeProcessor>();
    opRules.put(new RuleRegExp("R1", "(" + TableScanOperator.getOperatorName() + "%" + FilterOperator.getOperatorName() + "%)|(" + TableScanOperator.getOperatorName() + "%" + FilterOperator.getOperatorName() + "%" + FilterOperator.getOperatorName() + "%)"), PcrOpProcFactory.getFilterProc());
    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    SemanticDispatcher disp = new DefaultRuleDispatcher(PcrOpProcFactory.getDefaultProc(), opRules, opWalkerCtx);
    SemanticGraphWalker ogw = new DefaultGraphWalker(disp);
    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);
    for (PcrOpWalkerCtx.OpToDeleteInfo entry : opToRemove) {
        entry.getParent().removeChildAndAdoptItsChildren(entry.getOperator());
    }
    return pctx;
}

Example 28 with SemanticRule

use of org.apache.hadoop.hive.ql.lib.SemanticRule in project hive by apache.

the class TezCompiler method markOperatorsWithUnstableRuntimeStats.

private void markOperatorsWithUnstableRuntimeStats(OptimizeTezProcContext procCtx) throws SemanticException {
    Map<SemanticRule, SemanticNodeProcessor> opRules = new LinkedHashMap<SemanticRule, SemanticNodeProcessor>();
    opRules.put(new RuleRegExp("R1", ReduceSinkOperator.getOperatorName() + "%"), new MarkRuntimeStatsAsIncorrect());
    opRules.put(new RuleRegExp("R2", AppMasterEventOperator.getOperatorName() + "%"), new MarkRuntimeStatsAsIncorrect());
    opRules.put(new RuleRegExp("R3", TableScanOperator.getOperatorName() + "%"), new MarkRuntimeStatsAsIncorrect());
    SemanticDispatcher disp = new DefaultRuleDispatcher(null, opRules, procCtx);
    List<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(procCtx.parseContext.getTopOps().values());
    SemanticGraphWalker ogw = new PreOrderOnceWalker(disp);
    ogw.startWalking(topNodes, null);
}

Example 29 with SemanticRule

use of org.apache.hadoop.hive.ql.lib.SemanticRule in project hive by apache.

the class SparkCompiler method runSetReducerParallelism.

private void runSetReducerParallelism(OptimizeSparkProcContext procCtx) throws SemanticException {
    ParseContext pCtx = procCtx.getParseContext();
    Map<SemanticRule, SemanticNodeProcessor> opRules = new LinkedHashMap<SemanticRule, SemanticNodeProcessor>();
    opRules.put(new RuleRegExp("Set parallelism - ReduceSink", ReduceSinkOperator.getOperatorName() + "%"), new SetSparkReducerParallelism(pCtx.getConf()));
    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    SemanticDispatcher disp = new DefaultRuleDispatcher(null, opRules, procCtx);
    SemanticGraphWalker ogw = new PreOrderWalker(disp);
    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pCtx.getTopOps().values());
    ogw.startWalking(topNodes, null);
}

Example 30 with SemanticRule

use of org.apache.hadoop.hive.ql.lib.SemanticRule in project hive by apache.

the class SparkCompiler method runDynamicPartitionPruning.

private void runDynamicPartitionPruning(OptimizeSparkProcContext procCtx) throws SemanticException {
    if (!conf.isSparkDPPAny()) {
        return;
    }
    ParseContext parseContext = procCtx.getParseContext();
    Map<SemanticRule, SemanticNodeProcessor> opRules = new LinkedHashMap<SemanticRule, SemanticNodeProcessor>();
    opRules.put(new RuleRegExp(new String("Dynamic Partition Pruning"), FilterOperator.getOperatorName() + "%"), new DynamicPartitionPruningOptimization());
    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    SemanticDispatcher disp = new DefaultRuleDispatcher(null, opRules, procCtx);
    SemanticGraphWalker ogw = new ForwardWalker(disp);
    List<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(parseContext.getTopOps().values());
    ogw.startWalking(topNodes, null);
}