Package net.hydromatic.optiq

Examples of net.hydromatic.optiq.Table

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        Frameworks.withPlanner(new Frameworks.PlannerAction<RelNode>() {
          public RelNode apply(RelOptCluster cluster,
              RelOptSchema relOptSchema,
              SchemaPlus rootSchema) {
            final RelDataTypeFactory typeFactory = cluster.getTypeFactory();
            final Table table = new AbstractTable() {
              public RelDataType getRowType(RelDataTypeFactory typeFactory) {
                final RelDataType stringType =
                    typeFactory.createJavaType(String.class);
                final RelDataType integerType =
                    typeFactory.createJavaType(Integer.class);
                return typeFactory.builder()
                    .add("s", stringType)
                    .add("i", integerType)
                    .build();
              }
            };

            // "SELECT * FROM myTable"
            final RelOptAbstractTable relOptTable = new RelOptAbstractTable(
                relOptSchema,
                "myTable",
                table.getRowType(typeFactory)) {
            };
            final JavaRules.EnumerableTableAccessRel tableRel =
                new JavaRules.EnumerableTableAccessRel(
                    cluster, cluster.traitSetOf(EnumerableConvention.INSTANCE),
                    relOptTable, Object[].class);
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    return rel.accept(
        new RelShuttleImpl() {
          @Override
          public RelNode visit(TableAccessRelBase scan) {
            RelOptTable relOptTable = scan.getTable();
            final Table table = relOptTable.unwrap(Table.class);
            if (table.equals(starTable.tables.get(0))) {
              Mappings.TargetMapping mapping =
                  Mappings.createShiftMapping(
                      starRelOptTable.getRowType().getFieldCount(),
                      0, 0, relOptTable.getRowType().getFieldCount());

              return CalcRel.createProject(
                  new TableAccessRel(scan.getCluster(), starRelOptTable),
                  Mappings.asList(mapping.inverse()));
            }
            return scan;
          }

          @Override
          public RelNode visit(JoinRel join) {
            for (;;) {
              RelNode rel = super.visit(join);
              if (rel == join || !(rel instanceof JoinRel)) {
                return rel;
              }
              join = (JoinRel) rel;
              final RelNode left = join.getLeft();
              final RelNode right = join.getRight();
              try {
                if (left instanceof TableAccessRelBase
                    && right instanceof TableAccessRelBase) {
                  match(left, null, right, null, join.getCluster());
                }
                if (isProjectedTable(left)
                    && right instanceof TableAccessRelBase) {
                  final ProjectRel leftProject = (ProjectRel) left;
                  match(leftProject.getChild(), leftProject.getMapping(), right,
                      null, join.getCluster());
                }
                if (left instanceof TableAccessRelBase
                    && isProjectedTable(right)) {
                  final ProjectRel rightProject = (ProjectRel) right;
                  match(left, null, rightProject.getChild(),
                      rightProject.getMapping(), join.getCluster());
                }
                if (isProjectedTable(left)
                    && isProjectedTable(right)) {
                  final ProjectRel leftProject = (ProjectRel) left;
                  final ProjectRel rightProject = (ProjectRel) right;
                  match(leftProject.getChild(), leftProject.getMapping(),
                      rightProject.getChild(), rightProject.getMapping(),
                      join.getCluster());
                }
              } catch (Util.FoundOne e) {
                return (RelNode) e.getNode();
              }
            }
          }

          private boolean isProjectedTable(RelNode rel) {
            return rel instanceof ProjectRel
                && ((ProjectRel) rel).isMapping()
                && ((ProjectRel) rel).getChild() instanceof TableAccessRelBase;
          }

          /** Throws a {@link org.eigenbase.util.Util.FoundOne} containing a
           * {@link org.eigenbase.rel.TableAccessRel} on success.
           * (Yes, an exception for normal operation.) */
          private void match(RelNode left, Mappings.TargetMapping leftMapping,
              RelNode right, Mappings.TargetMapping rightMapping,
              RelOptCluster cluster) {
            if (leftMapping == null) {
              leftMapping =
                  Mappings.createIdentity(left.getRowType().getFieldCount());
            }
            if (rightMapping == null) {
              rightMapping =
                  Mappings.createIdentity(right.getRowType().getFieldCount());
            }
            final RelOptTable leftRelOptTable = left.getTable();
            final Table leftTable = leftRelOptTable.unwrap(Table.class);
            final RelOptTable rightRelOptTable = right.getTable();
            final Table rightTable = rightRelOptTable.unwrap(Table.class);
            if (leftTable instanceof StarTable
                && ((StarTable) leftTable).tables.contains(rightTable)) {
              System.out.println("left: " + leftMapping);
              System.out.println("right: " + rightMapping);
              Mappings.TargetMapping mapping =
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  @Override
  protected Map<String, Table> getTableMap() {
    final ImmutableMap.Builder<String, Table> builder = ImmutableMap.builder();
    for (Field field : clazz.getFields()) {
      final String fieldName = field.getName();
      final Table table = fieldRelation(field);
      if (table == null) {
        continue;
      }
      builder.put(fieldName, table);
    }
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        return Pair.of(tableName, entry.getTable());
      }
      // Check implicit tables, case-sensitive.
      final long now = System.currentTimeMillis();
      if (implicitTableCache.get(now).contains(tableName)) {
        final Table table = schema.getTable(tableName);
        if (table != null) {
          return Pair.of(tableName, table);
        }
      }
      return null;
    } else {
      // Check explicit tables, case-insensitive.
      //noinspection LoopStatementThatDoesntLoop
      for (Map.Entry<String, TableEntry> entry
          : find(tableMap, tableName).entrySet()) {
        return Pair.of(entry.getKey(), entry.getValue().getTable());
      }
      // Check implicit tables, case-insensitive.
      final long now = System.currentTimeMillis();
      final NavigableSet<String> implicitTableNames =
          implicitTableCache.get(now);
      final String tableName2 = implicitTableNames.floor(tableName);
      if (tableName2 != null) {
        final Table table = schema.getTable(tableName2);
        if (table != null) {
          return Pair.of(tableName2, table);
        }
      }
      return null;
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        new ImmutableSortedMap.Builder<String, Table>(COMPARATOR);
    for (Map.Entry<String, FunctionEntry> s : nullaryFunctionMap.entrySet()) {
      final Function function = s.getValue().getFunction();
      if (function instanceof TableMacro) {
        assert function.getParameters().isEmpty();
        final Table table = ((TableMacro) function).apply(ImmutableList.of());
        builder.put(s.getKey(), table);
      }
    }
    for (String s : implicitFunctionCache.get(System.currentTimeMillis())) {
      for (Function function : schema.getFunctions(s)) {
        if (function instanceof TableMacro
            && function.getParameters().isEmpty()) {
          final Table table = ((TableMacro) function).apply(ImmutableList.of());
          builder.put(s, table);
        }
      }
    }
    return builder.build();
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      final FunctionEntry functionEntry = nullaryFunctionMap.get(tableName);
      if (functionEntry != null) {
        final Function function = functionEntry.getFunction();
        if (function instanceof TableMacro) {
          assert function.getParameters().isEmpty();
          final Table table = ((TableMacro) function).apply(ImmutableList.of());
          return Pair.of(tableName, table);
        }
      }
      for (Function function : schema.getFunctions(tableName)) {
        if (function instanceof TableMacro
            && function.getParameters().isEmpty()) {
          final Table table = ((TableMacro) function).apply(ImmutableList.of());
          return Pair.of(tableName, table);
        }
      }
    } else {
      for (Map.Entry<String, FunctionEntry> entry
          : find(nullaryFunctionMap, tableName).entrySet()) {
        final Function function = entry.getValue().getFunction();
        if (function instanceof TableMacro) {
          assert function.getParameters().isEmpty();
          final Table table = ((TableMacro) function).apply(ImmutableList.of());
          return Pair.of(entry.getKey(), table);
        }
      }
      final NavigableSet<String> set =
          implicitFunctionCache.get(System.currentTimeMillis());
      for (String s : find(set, tableName)) {
        for (Function function : schema.getFunctions(s)) {
          if (function instanceof TableMacro
              && function.getParameters().isEmpty()) {
            final Table table =
                ((TableMacro) function).apply(ImmutableList.of());
            return Pair.of(s, table);
          }
        }
      }
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  Enumerable<MetaTable> tables(final MetaSchema schema) {
    return Linq4j.asEnumerable(schema.optiqSchema.getTableNames())
        .select(
            new Function1<String, MetaTable>() {
              public MetaTable apply(String name) {
                final Table table =
                    schema.optiqSchema.getTable(name, true).getValue();
                return new MetaTable(table,
                    schema.tableCatalog,
                    schema.tableSchem,
                    name);
              }
            })
        .concat(
            Linq4j.asEnumerable(
                schema.optiqSchema.getTablesBasedOnNullaryFunctions()
                    .entrySet())
                .select(
                    new Function1<Map.Entry<String, Table>, MetaTable>() {
                      public MetaTable apply(Map.Entry<String, Table> pair) {
                        final Table table = pair.getValue();
                        return new MetaTable(table,
                            schema.tableCatalog,
                            schema.tableSchem,
                            pair.getKey());
                      }
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    Pair<String, Table> pair = schema.getTable(name, caseSensitive);
    if (pair == null) {
      pair = schema.getTableBasedOnNullaryFunction(name, caseSensitive);
    }
    if (pair != null) {
      final Table table = pair.getValue();
      final String name2 = pair.getKey();
      return RelOptTableImpl.create(this, table.getRowType(typeFactory),
          schema.add(name2, table));
    }
    return null;
  }
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        Frameworks.withPlanner(new Frameworks.PlannerAction<RelNode>() {
          public RelNode apply(RelOptCluster cluster,
              RelOptSchema relOptSchema,
              SchemaPlus rootSchema) {
            final RelDataTypeFactory typeFactory = cluster.getTypeFactory();
            final Table table = new AbstractTable() {
              public RelDataType getRowType(RelDataTypeFactory typeFactory) {
                final RelDataType stringType =
                    typeFactory.createJavaType(String.class);
                final RelDataType integerType =
                    typeFactory.createJavaType(Integer.class);
                return typeFactory.builder()
                    .add("s", stringType)
                    .add("i", integerType)
                    .build();
              }
            };

            // "SELECT * FROM myTable"
            final RelOptAbstractTable relOptTable = new RelOptAbstractTable(
                relOptSchema,
                "myTable",
                table.getRowType(typeFactory)) {
            };
            final JavaRules.EnumerableTableAccessRel tableRel =
                new JavaRules.EnumerableTableAccessRel(
                    cluster, cluster.traitSetOf(EnumerableConvention.INSTANCE),
                    relOptTable, Object[].class);
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    return rel.accept(
        new RelShuttleImpl() {
          @Override
          public RelNode visit(TableAccessRelBase scan) {
            RelOptTable relOptTable = scan.getTable();
            final Table table = relOptTable.unwrap(Table.class);
            if (table.equals(starTable.tables.get(0))) {
              Mappings.TargetMapping mapping =
                  Mappings.createShiftMapping(
                      starRelOptTable.getRowType().getFieldCount(),
                      0, 0, relOptTable.getRowType().getFieldCount());

              return CalcRel.createProject(
                  new TableAccessRel(scan.getCluster(), starRelOptTable),
                  Mappings.asList(mapping.inverse()));
            }
            return scan;
          }

          @Override
          public RelNode visit(JoinRel join) {
            for (;;) {
              RelNode rel = super.visit(join);
              if (rel == join || !(rel instanceof JoinRel)) {
                return rel;
              }
              join = (JoinRel) rel;
              final RelNode left = join.getLeft();
              final RelNode right = join.getRight();
              try {
                if (left instanceof TableAccessRelBase
                    && right instanceof TableAccessRelBase) {
                  match(left, null, right, null, join.getCluster());
                }
                if (isProjectedTable(left)
                    && right instanceof TableAccessRelBase) {
                  final ProjectRel leftProject = (ProjectRel) left;
                  match(leftProject.getChild(), leftProject.getMapping(), right,
                      null, join.getCluster());
                }
                if (left instanceof TableAccessRelBase
                    && isProjectedTable(right)) {
                  final ProjectRel rightProject = (ProjectRel) right;
                  match(left, null, rightProject.getChild(),
                      rightProject.getMapping(), join.getCluster());
                }
                if (isProjectedTable(left)
                    && isProjectedTable(right)) {
                  final ProjectRel leftProject = (ProjectRel) left;
                  final ProjectRel rightProject = (ProjectRel) right;
                  match(leftProject.getChild(), leftProject.getMapping(),
                      rightProject.getChild(), rightProject.getMapping(),
                      join.getCluster());
                }
              } catch (Util.FoundOne e) {
                return (RelNode) e.getNode();
              }
            }
          }

          private boolean isProjectedTable(RelNode rel) {
            return rel instanceof ProjectRel
                && ((ProjectRel) rel).isMapping()
                && ((ProjectRel) rel).getChild() instanceof TableAccessRelBase;
          }

          /** Throws a {@link org.eigenbase.util.Util.FoundOne} containing a
           * {@link org.eigenbase.rel.TableAccessRel} on success.
           * (Yes, an exception for normal operation.) */
          private void match(RelNode left, Mappings.TargetMapping leftMapping,
              RelNode right, Mappings.TargetMapping rightMapping,
              RelOptCluster cluster) {
            if (leftMapping == null) {
              leftMapping =
                  Mappings.createIdentity(left.getRowType().getFieldCount());
            }
            if (rightMapping == null) {
              rightMapping =
                  Mappings.createIdentity(right.getRowType().getFieldCount());
            }
            final RelOptTable leftRelOptTable = left.getTable();
            final Table leftTable = leftRelOptTable.unwrap(Table.class);
            final RelOptTable rightRelOptTable = right.getTable();
            final Table rightTable = rightRelOptTable.unwrap(Table.class);
            if (leftTable instanceof StarTable
                && ((StarTable) leftTable).tables.contains(rightTable)) {
              System.out.println("left: " + leftMapping);
              System.out.println("right: " + rightMapping);
              Mappings.TargetMapping mapping =
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Related Classes of net.hydromatic.optiq.Table

  • net.hydromatic.optiq.impl.java.ReflectiveSchema
  • net.hydromatic.optiq.jdbc.MetaImpl
  • net.hydromatic.optiq.jdbc.OptiqSchema
  • net.hydromatic.optiq.materialize.MaterializationService
  • net.hydromatic.optiq.prepare.OptiqCatalogReader
  • net.hydromatic.optiq.tools.FrameworksTest
  • org.apache.drill.exec.store.ischema.RecordGenerator
  • org.eigenbase.rel.rules.AggregateStarTableRule
  • org.eigenbase.relopt.RelOptMaterialization
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