Package com.facebook.presto.metadata

Examples of com.facebook.presto.metadata.ColumnHandle

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        // lookup the columns
        Map<String, ColumnHandle> allColumnHandles = metadata.getColumnHandles(tableHandle);
        ImmutableList.Builder<ColumnHandle> columnHandlesBuilder = ImmutableList.builder();
        ImmutableList.Builder<Type> columnTypesBuilder = ImmutableList.builder();
        for (String columnName : columnNames) {
            ColumnHandle columnHandle = allColumnHandles.get(columnName);
            checkArgument(columnHandle != null, "Table %s does not have a column %s", tableName, columnName);
            columnHandlesBuilder.add(columnHandle);
            ColumnMetadata columnMetadata = metadata.getColumnMetadata(tableHandle, columnHandle);
            columnTypesBuilder.add(columnMetadata.getType());
        }
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        // TODO: discover columns lazily based on where they are needed (to support datasources that can't enumerate all tables)
        ImmutableList.Builder<Field> fields = ImmutableList.builder();
        for (ColumnMetadata column : tableMetadata.getColumns()) {
            Field field = Field.newQualified(table.getName(), Optional.of(column.getName()), column.getType(), column.isHidden());
            fields.add(field);
            ColumnHandle columnHandle = columnHandles.get(column.getName());
            checkArgument(columnHandle != null, "Unknown field %s", field);
            analysis.setColumn(field, columnHandle);
        }

        analysis.registerTable(table, tableHandle.get());
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        // lookup the columns
        Map<String, ColumnHandle> allColumnHandles = metadata.getColumnHandles(tableHandle);
        ImmutableList.Builder<ColumnHandle> columnHandlesBuilder = ImmutableList.builder();
        ImmutableList.Builder<Type> columnTypesBuilder = ImmutableList.builder();
        for (String columnName : columnNames) {
            ColumnHandle columnHandle = allColumnHandles.get(columnName);
            checkArgument(columnHandle != null, "Table %s does not have a column %s", tableName, columnName);
            columnHandlesBuilder.add(columnHandle);
            ColumnMetadata columnMetadata = metadata.getColumnMetadata(tableHandle, columnHandle);
            columnTypesBuilder.add(columnMetadata.getType());
        }
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        Map<ColumnHandle, String> columnHandles = ImmutableBiMap.copyOf(metadata.getColumnHandles(tableHandle.get())).inverse();
        PartitionResult partitionResult = splitManager.getPartitions(tableHandle.get(), Optional.<TupleDomain<ColumnHandle>>absent());

        for (Partition partition : partitionResult.getPartitions()) {
            for (Entry<ColumnHandle, Comparable<?>> entry : partition.getTupleDomain().extractFixedValues().entrySet()) {
                ColumnHandle columnHandle = entry.getKey();
                String columnName = columnHandles.get(columnHandle);
                String value = null;
                if (entry.getValue() != null) {
                    ColumnMetadata columnMetadata  = metadata.getColumnMetadata(tableHandle.get(), columnHandle);
                    try {
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                new PlanFragmentId("test"),
                new TableScanNode(
                        new PlanNodeId("test"),
                        new TableHandle("test", new TestingTableHandle()),
                        ImmutableList.of(symbol),
                        ImmutableMap.of(symbol, new ColumnHandle("test", new TestingColumnHandle("column"))),
                        null,
                        Optional.<TableScanNode.GeneratedPartitions>absent()),
                ImmutableMap.<Symbol, Type>of(symbol, VARCHAR),
                PlanFragment.PlanDistribution.SOURCE,
                tableScanNodeId,
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                new PlanFragmentId(planId),
                new TableScanNode(
                        tableScanNodeId,
                        new TableHandle("test", new TestingTableHandle()),
                        ImmutableList.of(symbol),
                        ImmutableMap.of(symbol, new ColumnHandle("test", new TestingColumnHandle("column"))),
                        null,
                        Optional.<GeneratedPartitions>absent()),
                ImmutableMap.<Symbol, Type>of(symbol, VARCHAR),
                PlanDistribution.SOURCE,
                tableScanNodeId,
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                normalizeConjuncts(and(greaterThan(AE, number(10)), lessThan(AE, number(100)))));
    }

    private static ColumnHandle newColumnHandle(String name)
    {
        return new ColumnHandle("test", new TestingColumnHandle(name));
    }
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        Assert.assertTrue(result.getTupleDomain().isNone());
    }

    private static ColumnHandle newColumnHandle(String name)
    {
        return new ColumnHandle("test", new TestingColumnHandle(name));
    }
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        // TODO: discover columns lazily based on where they are needed (to support datasources that can't enumerate all tables)
        ImmutableList.Builder<Field> fields = ImmutableList.builder();
        for (ColumnMetadata column : tableMetadata.getColumns()) {
            Field field = Field.newQualified(table.getName(), Optional.of(column.getName()), column.getType(), column.isHidden());
            fields.add(field);
            ColumnHandle columnHandle = columnHandles.get(column.getName());
            checkArgument(columnHandle != null, "Unknown field %s", field);
            analysis.setColumn(field, columnHandle);
        }

        analysis.registerTable(table, tableHandle.get());
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        // lookup the columns
        Map<String, ColumnHandle> allColumnHandles = metadata.getColumnHandles(tableHandle);
        ImmutableList.Builder<ColumnHandle> columnHandlesBuilder = ImmutableList.builder();
        ImmutableList.Builder<Type> columnTypesBuilder = ImmutableList.builder();
        for (String columnName : columnNames) {
            ColumnHandle columnHandle = allColumnHandles.get(columnName);
            checkArgument(columnHandle != null, "Table %s does not have a column %s", tableName, columnName);
            columnHandlesBuilder.add(columnHandle);
            ColumnMetadata columnMetadata = metadata.getColumnMetadata(tableHandle, columnHandle);
            columnTypesBuilder.add(columnMetadata.getType());
        }
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