Package org.apache.tajo.catalog

Examples of org.apache.tajo.catalog.Column

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   */
  private static void ensureDomains(VerificationState state, Schema targetTableScheme, Schema schema)
      throws PlanningException {
    for (int i = 0; i < schema.size(); i++) {
      if (!schema.getColumn(i).getDataType().equals(targetTableScheme.getColumn(i).getDataType())) {
        Column targetColumn = targetTableScheme.getColumn(i);
        Column insertColumn = schema.getColumn(i);
        state.addVerification("ERROR: " +
            insertColumn.getSimpleName() + " is of type " + insertColumn.getDataType().getType().name() +
            ", but target column '" + targetColumn.getSimpleName() + "' is of type " +
            targetColumn.getDataType().getType().name());
      }
    }
  }
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   * @param inc
   * @param sortSpecs
   * @return
   */
  public boolean isOverflow(int colId, Datum last, BigDecimal inc, SortSpec [] sortSpecs) {
    Column column = sortSpecs[colId].getSortKey();
    BigDecimal candidate;
    boolean overflow = false;

    switch (column.getDataType().getType()) {
      case BIT: {
        if (sortSpecs[colId].isAscending()) {
          candidate = inc.add(new BigDecimal(last.asByte()));
          return new BigDecimal(range.getEnd().get(colId).asByte()).compareTo(candidate) < 0;
        } else {
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    }
    return overflow;
  }

  public long incrementAndGetReminder(int colId, Datum last, long inc) {
    Column column = sortSpecs[colId].getSortKey();
    long reminder = 0;
    switch (column.getDataType().getType()) {
      case BIT: {
        long candidate = last.asByte() + inc;
        byte end = range.getEnd().get(colId).asByte();
        reminder = candidate - end;
        break;
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        incs[i] = new BigDecimal(0);
      }
    }

    Tuple end = new VTuple(sortSpecs.length);
    Column column;
    for (int i = 0; i < last.size(); i++) {
      column = sortSpecs[i].getSortKey();
      switch (column.getDataType().getType()) {
        case CHAR:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createChar((char) (range.getStart().get(i).asChar() + incs[i].longValue())));
          } else {
            end.put(i, DatumFactory.createChar((char) (last.get(i).asChar() + incs[i].longValue())));
          }
          break;
        case BIT:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createBit(
                (byte) (range.getStart().get(i).asByte() + incs[i].longValue())));
          } else {
            end.put(i, DatumFactory.createBit((byte) (last.get(i).asByte() + incs[i].longValue())));
          }
          break;
        case INT2:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createInt2(
                (short) (range.getStart().get(i).asInt2() + incs[i].longValue())));
          } else {
            end.put(i, DatumFactory.createInt2((short) (last.get(i).asInt2() + incs[i].longValue())));
          }
          break;
        case INT4:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createInt4(
                (int) (range.getStart().get(i).asInt4() + incs[i].longValue())));
          } else {
            if (sortSpecs[i].isAscending()) {
              end.put(i, DatumFactory.createInt4((int) (last.get(i).asInt4() + incs[i].longValue())));
            } else {
              end.put(i, DatumFactory.createInt4((int) (last.get(i).asInt4() - incs[i].longValue())));
            }
          }
          break;
        case INT8:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createInt8(
                range.getStart().get(i).asInt8() + incs[i].longValue()));
          } else {
            end.put(i, DatumFactory.createInt8(last.get(i).asInt8() + incs[i].longValue()));
          }
          break;
        case FLOAT4:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createFloat4(
                range.getStart().get(i).asFloat4() + incs[i].longValue()));
          } else {
            end.put(i, DatumFactory.createFloat4(last.get(i).asFloat4() + incs[i].longValue()));
          }
          break;
        case FLOAT8:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createFloat8(
                range.getStart().get(i).asFloat8() + incs[i].longValue()));
          } else {
            end.put(i, DatumFactory.createFloat8(last.get(i).asFloat8() + incs[i].longValue()));
          }
          break;
        case TEXT:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createText(((char) (range.getStart().get(i).asChars().charAt(0)
                + incs[i].longValue())) + ""));
          } else {
            end.put(i, DatumFactory.createText(
                ((char) ((last.get(i) instanceof NullDatum ? '0': last.get(i).asChars().charAt(0)) + incs[i].longValue())) + ""));
          }
          break;
        case DATE:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createDate((int) (range.getStart().get(i).asInt4() + incs[i].longValue())));
          } else {
            end.put(i, DatumFactory.createDate((int) (last.get(i).asInt4() + incs[i].longValue())));
          }
          break;
        case TIME:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createTime(range.getStart().get(i).asInt8() + incs[i].longValue()));
          } else {
            end.put(i, DatumFactory.createTime(last.get(i).asInt8() + incs[i].longValue()));
          }
          break;
        case TIMESTAMP:
          if (overflowFlag[i]) {
            end.put(i, DatumFactory.createTimeStampFromMillis(
                range.getStart().get(i).asInt8() + incs[i].longValue()));
          } else {
            end.put(i, DatumFactory.createTimeStampFromMillis(last.get(i).asInt8() + incs[i].longValue()));
          }
          break;
        case INET4:
          byte[] ipBytes;
          if (overflowFlag[i]) {
            ipBytes = range.getStart().get(i).asByteArray();
            assert ipBytes.length == 4;
            end.put(i, DatumFactory.createInet4(ipBytes));
          } else {
            int lastVal = last.get(i).asInt4() + incs[i].intValue();
            ipBytes = new byte[4];
            Bytes.putInt(ipBytes, 0, lastVal);
            end.put(i, DatumFactory.createInet4(ipBytes));
          }
          break;
        default:
          throw new UnsupportedOperationException(column.getDataType() + " is not supported yet");
      }
    }

    return end;
  }
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  @Expose private Column column;
  @Expose  private int fieldId = -1;
 
  public FieldEval(String columnName, DataType domain) {
    super(EvalType.FIELD);
    this.column = new Column(columnName, domain);
  }
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  public String getColumnName() {
    return column.getSimpleName();
  }
 
  public void replaceColumnRef(String columnName) {
    this.column = new Column(columnName, this.column.getDataType());
  }
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        continue;
      } else {
        boolean[] equal = new boolean[sortKey.length];
        for(int i = 0 ; i < sortKey.length ; i ++) {
          for(int j = 0 ; j < nodeList.size() ; j ++) {
            Column col = ((FieldEval)(nodeList.get(j).getLeftExpr())).getColumnRef();
            if(col.equals(sortKey[i].getSortKey())) {
              equal[i] = true;
            }
          }
        }
        boolean chk = true;
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          + node.getPID()));
    }

    for (int i = 0; i < outputSchema.size(); i++) {
      if (!outputSchema.getColumn(i).getDataType().equals(targetSchema.getColumn(i).getDataType())) {
        Column targetColumn = targetSchema.getColumn(i);
        Column insertColumn = outputSchema.getColumn(i);
        throw new PlanningException("ERROR: " +
            insertColumn.getSimpleName() + " is of type " + insertColumn.getDataType().getType().name() +
            ", but target column '" + targetColumn.getSimpleName() + "' is of type " +
            targetColumn.getDataType().getType().name());
      }
    }
  }
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      throws PlanningException {

    // Note that we can guarantee that each join qual used here is a singleton.
    // This is because we use dissect a join qual into conjunctive normal forms.
    // In other words, each join qual has a form 'col1 = col2'.
    Column leftExpr = EvalTreeUtil.findAllColumnRefs(joinCondition.getLeftExpr()).get(0);
    Column rightExpr = EvalTreeUtil.findAllColumnRefs(joinCondition.getRightExpr()).get(0);

    // 0 - left table, 1 - right table
    String [] relationNames = new String[2];

    NamedExprsManager namedExprsMgr = block.getNamedExprsManager();
    if (leftExpr.hasQualifier()) {
      relationNames[0] = leftExpr.getQualifier();
    } else {
      if (namedExprsMgr.isAliasedName(leftExpr.getSimpleName())) {
        String columnName = namedExprsMgr.getOriginalName(leftExpr.getSimpleName());
        String qualifier = CatalogUtil.extractQualifier(columnName);
        relationNames[0] = qualifier;
      } else {
        throw new PlanningException("Cannot expect a referenced relation: " + leftExpr);
      }
    }

    if (rightExpr.hasQualifier()) {
      relationNames[1] = rightExpr.getQualifier();
    } else {
      if (namedExprsMgr.isAliasedName(rightExpr.getSimpleName())) {
        String columnName = namedExprsMgr.getOriginalName(rightExpr.getSimpleName());
        String qualifier = CatalogUtil.extractQualifier(columnName);
        relationNames[1] = qualifier;
      } else {
        throw new PlanningException("Cannot expect a referenced relation: " + rightExpr);
      }
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    public void visit(EvalNode node) {
      if (EvalTreeUtil.isJoinQual(node, includeThetaJoin)) {
        Column[] pair = new Column[2];

        for (int i = 0; i <= 1; i++) { // access left, right sub expression
          Column column = EvalTreeUtil.findAllColumnRefs(node.getExpr(i)).get(0);
          for (int j = 0; j < schemas.length; j++) {
            // check whether the column is for either outer or inner
            // 0 is outer, and 1 is inner
            if (schemas[j].containsByQualifiedName(column.getQualifiedName())) {
              pair[j] = column;
            }
          }
        }
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Related Classes of org.apache.tajo.catalog.Column

  • org.apache.tajo.catalog.statistics.ColumnStat
  • org.apache.tajo.catalog.statistics.ColumnStats
  • org.apache.tajo.catalog.statistics.TestColumnStat
  • org.apache.tajo.catalog.statistics.TestTableStat
  • org.apache.tajo.cli.DescTableCommand
  • org.apache.tajo.cli.TajoCli
  • org.apache.tajo.engine.eval.FieldEval
  • org.apache.tajo.engine.function.builtin.AvgDouble
  • org.apache.tajo.engine.function.builtin.AvgLong
  • org.apache.tajo.engine.function.builtin.CountValue
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