Package org.apache.hadoop.hive.ql.parse

Examples of org.apache.hadoop.hive.ql.parse.QB

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    if (!done) {
      SemanticAnalyzer sem = (SemanticAnalyzer)SemanticAnalyzerFactory.get(pGraphContext.getConf(), pGraphContext.getParseTree());

      resetParseContext(pGraphContext);
      sem.init(pGraphContext);
      QB qb = new QB(null, null, false);

      sem.doPhase1(pGraphContext.getParseTree(), qb, sem.initPhase1Ctx());
      sem.getMetaData(qb);
      sem.genPlan(qb);
      pGraphContext = sem.getParseContext();
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      TableScanOperator ts) throws HiveException {
    SplitSample splitSample = pctx.getNameToSplitSample().get(alias);
    if (!aggressive && splitSample != null) {
      return null;
    }
    QB qb = pctx.getQB();
    if (!aggressive && qb.hasTableSample(alias)) {
      return null;
    }

    Table table = qb.getMetaData().getAliasToTable().get(alias);
    if (table == null) {
      return null;
    }
    if (!table.isPartitioned()) {
      return checkOperators(new FetchData(table, splitSample), ts, aggressive, false);
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      TableScanOperator ts) throws HiveException {
    SplitSample splitSample = pctx.getNameToSplitSample().get(alias);
    if (!aggressive && splitSample != null) {
      return null;
    }
    QB qb = pctx.getQB();
    if (!aggressive && qb.hasTableSample(alias)) {
      return null;
    }

    Table table = qb.getMetaData().getAliasToTable().get(alias);
    if (table == null) {
      return null;
    }
    if (!table.isPartitioned()) {
      return checkOperators(new FetchData(table, splitSample), ts, aggressive, false);
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   * @return
   * @throws SemanticException
   */
  private static void doSemanticAnalysis(SemanticAnalyzer sem,
      ASTNode ast, Context ctx) throws SemanticException {
    QB qb = new QB(null, null, false);
    ASTNode child = ast;
    ParseContext subPCtx = ((SemanticAnalyzer) sem).getParseContext();
    subPCtx.setContext(ctx);
    ((SemanticAnalyzer) sem).init(subPCtx);

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   * @return
   * @throws SemanticException
   */
  private static void doSemanticAnalysis(SemanticAnalyzer sem,
      ASTNode ast, Context ctx) throws SemanticException {
    QB qb = new QB(null, null, false);
    ASTNode child = ast;
    ParseContext subPCtx = ((SemanticAnalyzer) sem).getParseContext();
    subPCtx.setContext(ctx);
    ((SemanticAnalyzer) sem).init(subPCtx);

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    GlobalLimitCtx globalLimitCtx = pctx.getGlobalLimitCtx();
    Map<TableScanOperator, ExprNodeDesc> opToPartPruner = pctx.getOpToPartPruner();
    Map<String, SplitSample> nameToSplitSample = pctx.getNameToSplitSample();
    Map<TableScanOperator, Table> topToTable = pctx.getTopToTable();

    QB qb = pctx.getQB();
    HiveConf conf = pctx.getConf();
    QBParseInfo qbParseInfo = qb.getParseInfo();

    // determine the query qualifies reduce input size for LIMIT
    // The query only qualifies when there are only one top operator
    // and there is no transformer or UDTF and no block sampling
    // is used.
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      TableScanOperator ts) throws HiveException {
    SplitSample splitSample = pctx.getNameToSplitSample().get(alias);
    if (!aggressive && splitSample != null) {
      return null;
    }
    QB qb = pctx.getQB();
    if (!aggressive && qb.hasTableSample(alias)) {
      return null;
    }

    Table table = qb.getMetaData().getAliasToTable().get(alias);
    if (table == null) {
      return null;
    }
    ReadEntity parent = PlanUtils.getParentViewInfo(alias, pctx.getViewAliasToInput());
    if (!table.isPartitioned()) {
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   * @return
   * @throws SemanticException
   */
  private static void doSemanticAnalysis(SemanticAnalyzer sem,
      ASTNode ast, Context ctx) throws SemanticException {
    QB qb = new QB(null, null, false);
    ASTNode child = ast;
    ParseContext subPCtx = ((SemanticAnalyzer) sem).getParseContext();
    subPCtx.setContext(ctx);
    ((SemanticAnalyzer) sem).initParseCtx(subPCtx);

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      TableScanOperator ts) throws HiveException {
    SplitSample splitSample = pctx.getNameToSplitSample().get(alias);
    if (!aggressive && splitSample != null) {
      return null;
    }
    QB qb = pctx.getQB();
    if (!aggressive && qb.hasTableSample(alias)) {
      return null;
    }

    Table table = pctx.getTopToTable().get(ts);
    if (table == null) {
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   * @return
   * @throws SemanticException
   */
  private static void doSemanticAnalysis(SemanticAnalyzer sem,
      ASTNode ast, Context ctx) throws SemanticException {
    QB qb = new QB(null, null, false);
    ASTNode child = ast;
    ParseContext subPCtx = ((SemanticAnalyzer) sem).getParseContext();
    subPCtx.setContext(ctx);
    ((SemanticAnalyzer) sem).initParseCtx(subPCtx);

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Related Classes of org.apache.hadoop.hive.ql.parse.QB

  • org.apache.hadoop.hive.ql.exec.ExplainSQRewriteTask
  • org.apache.hadoop.hive.ql.metadata.Table
  • org.apache.hadoop.hive.ql.optimizer.ColumnPruner
  • org.apache.hadoop.hive.ql.optimizer.GlobalLimitOptimizer
  • org.apache.hadoop.hive.ql.optimizer.index.RewriteParseContextGenerator
  • org.apache.hadoop.hive.ql.optimizer.SimpleFetchOptimizer
  • org.apache.hadoop.hive.ql.parse.QBMetaData
  • org.apache.hadoop.hive.ql.parse.QBParseInfo
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