Package org.apache.hadoop.hive.ql.plan

Examples of org.apache.hadoop.hive.ql.plan.AlterTableDesc

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  private void analyzeAlterTableLocation(ASTNode ast, String tableName,
      HashMap<String, String> partSpec) throws SemanticException {

    String newLocation = unescapeSQLString(ast.getChild(0).getText());

    AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, newLocation, partSpec);

    addInputsOutputsAlterTable(tableName, partSpec, alterTblDesc);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
        alterTblDesc), conf));
  }
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  private void analyzeAlterTableProtectMode(ASTNode ast, String tableName,
      HashMap<String, String> partSpec)
      throws SemanticException {

    AlterTableDesc alterTblDesc =
        new AlterTableDesc(AlterTableTypes.ALTERPROTECTMODE);

    alterTblDesc.setOldName(tableName);
    alterTblDesc.setPartSpec(partSpec);

    ASTNode child = (ASTNode) ast.getChild(0);

    switch (child.getToken().getType()) {
    case HiveParser.TOK_ENABLE:
      alterTblDesc.setProtectModeEnable(true);
      break;
    case HiveParser.TOK_DISABLE:
      alterTblDesc.setProtectModeEnable(false);
      break;
    default:
      throw new SemanticException(
          "Set Protect mode Syntax parsing error.");
    }

    ASTNode grandChild = (ASTNode) child.getChild(0);
    switch (grandChild.getToken().getType()) {
    case HiveParser.TOK_OFFLINE:
      alterTblDesc.setProtectModeType(AlterTableDesc.ProtectModeType.OFFLINE);
      break;
    case HiveParser.TOK_NO_DROP:
      if (grandChild.getChildCount() > 0) {
        alterTblDesc.setProtectModeType(AlterTableDesc.ProtectModeType.NO_DROP_CASCADE);
      }
      else {
        alterTblDesc.setProtectModeType(AlterTableDesc.ProtectModeType.NO_DROP);
      }
      break;
    case HiveParser.TOK_READONLY:
      throw new SemanticException(
          "Potect mode READONLY is not implemented");
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    validateAlterTableType(tab, AlterTableTypes.ADDCLUSTERSORTCOLUMN);

    if (ast.getChildCount() == 1) {
      // This means that we want to turn off bucketing
      AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, -1,
          new ArrayList<String>(), new ArrayList<Order>());
      rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
          alterTblDesc), conf));
    } else {
      ASTNode buckets = (ASTNode) ast.getChild(1);
      List<String> bucketCols = getColumnNames((ASTNode) buckets.getChild(0));
      List<Order> sortCols = new ArrayList<Order>();
      int numBuckets = -1;
      if (buckets.getChildCount() == 2) {
        numBuckets = (Integer.valueOf(buckets.getChild(1).getText())).intValue();
      } else {
        sortCols = getColumnNamesOrder((ASTNode) buckets.getChild(1));
        numBuckets = (Integer.valueOf(buckets.getChild(2).getText())).intValue();
      }
      if (numBuckets <= 0) {
        throw new SemanticException(ErrorMsg.INVALID_BUCKET_NUMBER.getMsg());
      }

      AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, numBuckets,
          bucketCols, sortCols);
      rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
          alterTblDesc), conf));
    }
  }
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  }


  private void analyzeAlterTableRename(ASTNode ast, boolean expectView) throws SemanticException {
    String tblName = getUnescapedName((ASTNode) ast.getChild(0));
    AlterTableDesc alterTblDesc = new AlterTableDesc(tblName,
        getUnescapedName((ASTNode) ast.getChild(1)), expectView);

    addInputsOutputsAlterTable(tblName, null, alterTblDesc);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
        alterTblDesc), conf));
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        && skewInfo.getSkewedColNames().contains(oldColName)) {
      throw new SemanticException(oldColName
          + ErrorMsg.ALTER_TABLE_NOT_ALLOWED_RENAME_SKEWED_COLUMN.getMsg());
    }

    AlterTableDesc alterTblDesc = new AlterTableDesc(tblName,
        unescapeIdentifier(oldColName), unescapeIdentifier(newColName),
        newType, newComment, first, flagCol);
    addInputsOutputsAlterTable(tblName, null, alterTblDesc);

    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
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  private void analyzeAlterTableModifyCols(ASTNode ast,
      AlterTableTypes alterType) throws SemanticException {
    String tblName = getUnescapedName((ASTNode) ast.getChild(0));
    List<FieldSchema> newCols = getColumns((ASTNode) ast.getChild(1));
    AlterTableDesc alterTblDesc = new AlterTableDesc(tblName, newCols,
        alterType);

    addInputsOutputsAlterTable(tblName, null, alterTblDesc);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
        alterTblDesc), conf));
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    validateAlterTableType(tab, AlterTableTypes.ADDSKEWEDBY);

    if (ast.getChildCount() == 1) {
      /* Convert a skewed table to non-skewed table. */
      AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, true,
          new ArrayList<String>(), new ArrayList<List<String>>());
      alterTblDesc.setStoredAsSubDirectories(false);
      rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
          alterTblDesc), conf));
    } else {
      switch (((ASTNode) ast.getChild(1)).getToken().getType()) {
      case HiveParser.TOK_TABLESKEWED:
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    List<List<String>> skewedColValues = tab.getSkewedColValues();
    if ((skewedColNames == null) || (skewedColNames.size() == 0) || (skewedColValues == null)
        || (skewedColValues.size() == 0)) {
      throw new SemanticException(ErrorMsg.ALTER_TBL_STOREDASDIR_NOT_SKEWED.getMsg(tableName));
    }
    AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, false,
        skewedColNames, skewedColValues);
    alterTblDesc.setStoredAsSubDirectories(false);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
        alterTblDesc), conf));
  }
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    analyzeDDLSkewedValues(skewedValues, skewedNode);
    // stored as directories
    boolean storedAsDirs = analyzeStoredAdDirs(skewedNode);


    AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, false,
        skewedColNames, skewedValues);
    alterTblDesc.setStoredAsSubDirectories(storedAsDirs);
    /**
     * Validate information about skewed table
     */
    alterTblDesc.setTable(tab);
    alterTblDesc.validate();
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
        alterTblDesc), conf));
  }
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            }
          }
        }
      }
    }
    AlterTableDesc alterTblDesc = new AlterTableDesc(tableName, locations, partSpec);
    addInputsOutputsAlterTable(tableName, partSpec);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(),
        alterTblDesc), conf));
  }
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Related Classes of org.apache.hadoop.hive.ql.plan.AlterTableDesc

  • org.apache.hadoop.hive.ql.exec.DDLTask
  • org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer
  • org.apache.hcatalog.cli.SemanticAnalysis.HCatSemanticAnalyzer
  • org.apache.hive.hcatalog.cli.SemanticAnalysis.HCatSemanticAnalyzer
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