Examples with ColumnMetadata org.apache.cassandra.schema.ColumnMetadata used on opensource projects

Example 1 with ColumnMetadata

use of org.apache.cassandra.schema.ColumnMetadata in project cassandra by apache.

the class AlterTableStatement method announceMigration.

public Event.SchemaChange announceMigration(QueryState queryState, boolean isLocalOnly) throws RequestValidationException {
    TableMetadata current = Schema.instance.validateTable(keyspace(), columnFamily());
    if (current.isView())
        throw new InvalidRequestException("Cannot use ALTER TABLE on Materialized View");
    TableMetadata.Builder builder = current.unbuild();
    ColumnIdentifier columnName = null;
    ColumnMetadata def = null;
    CQL3Type.Raw dataType = null;
    boolean isStatic = false;
    CQL3Type validator = null;
    List<ViewMetadata> viewUpdates = new ArrayList<>();
    Iterable<ViewMetadata> views = View.findAll(keyspace(), columnFamily());
    switch(oType) {
        case ALTER:
            throw new InvalidRequestException("Altering of types is not allowed");
        case ADD:
            if (current.isDense())
                throw new InvalidRequestException("Cannot add new column to a COMPACT STORAGE table");
            for (AlterTableStatementColumn colData : colNameList) {
                columnName = colData.getColumnName().getIdentifier(current);
                def = builder.getColumn(columnName);
                dataType = colData.getColumnType();
                assert dataType != null;
                isStatic = colData.getStaticType();
                validator = dataType.prepare(keyspace());
                if (isStatic) {
                    if (!current.isCompound())
                        throw new InvalidRequestException("Static columns are not allowed in COMPACT STORAGE tables");
                    if (current.clusteringColumns().isEmpty())
                        throw new InvalidRequestException("Static columns are only useful (and thus allowed) if the table has at least one clustering column");
                }
                if (def != null) {
                    switch(def.kind) {
                        case PARTITION_KEY:
                        case CLUSTERING:
                            throw new InvalidRequestException(String.format("Invalid column name %s because it conflicts with a PRIMARY KEY part", columnName));
                        default:
                            throw new InvalidRequestException(String.format("Invalid column name %s because it conflicts with an existing column", columnName));
                    }
                }
                // Cannot re-add a dropped counter column. See #7831.
                if (current.isCounter() && current.getDroppedColumn(columnName.bytes) != null)
                    throw new InvalidRequestException(String.format("Cannot re-add previously dropped counter column %s", columnName));
                AbstractType<?> type = validator.getType();
                if (type.isCollection() && type.isMultiCell()) {
                    if (!current.isCompound())
                        throw new InvalidRequestException("Cannot use non-frozen collections in COMPACT STORAGE tables");
                    if (current.isSuper())
                        throw new InvalidRequestException("Cannot use non-frozen collections with super column families");
                    // If there used to be a non-frozen collection column with the same name (that has been dropped),
                    // we could still have some data using the old type, and so we can't allow adding a collection
                    // with the same name unless the types are compatible (see #6276).
                    DroppedColumn dropped = current.droppedColumns.get(columnName.bytes);
                    if (dropped != null && dropped.column.type instanceof CollectionType && dropped.column.type.isMultiCell() && !type.isCompatibleWith(dropped.column.type)) {
                        String message = String.format("Cannot add a collection with the name %s because a collection with the same name" + " and a different type (%s) has already been used in the past", columnName, dropped.column.type.asCQL3Type());
                        throw new InvalidRequestException(message);
                    }
                }
                builder.addColumn(isStatic ? ColumnMetadata.staticColumn(current, columnName.bytes, type) : ColumnMetadata.regularColumn(current, columnName.bytes, type));
                // as well
                if (!isStatic)
                    for (ViewMetadata view : views) if (view.includeAllColumns)
                        viewUpdates.add(view.withAddedRegularColumn(ColumnMetadata.regularColumn(view.metadata, columnName.bytes, type)));
            }
            break;
        case DROP:
            if (!current.isCQLTable())
                throw new InvalidRequestException("Cannot drop columns from a non-CQL3 table");
            for (AlterTableStatementColumn colData : colNameList) {
                columnName = colData.getColumnName().getIdentifier(current);
                def = builder.getColumn(columnName);
                if (def == null)
                    throw new InvalidRequestException(String.format("Column %s was not found in table %s", columnName, columnFamily()));
                switch(def.kind) {
                    case PARTITION_KEY:
                    case CLUSTERING:
                        throw new InvalidRequestException(String.format("Cannot drop PRIMARY KEY part %s", columnName));
                    case REGULAR:
                    case STATIC:
                        builder.removeRegularOrStaticColumn(def.name);
                        builder.recordColumnDrop(def, deleteTimestamp == null ? queryState.getTimestamp() : deleteTimestamp);
                        break;
                }
                // If the dropped column is required by any secondary indexes
                // we reject the operation, as the indexes must be dropped first
                Indexes allIndexes = current.indexes;
                if (!allIndexes.isEmpty()) {
                    ColumnFamilyStore store = Keyspace.openAndGetStore(current);
                    Set<IndexMetadata> dependentIndexes = store.indexManager.getDependentIndexes(def);
                    if (!dependentIndexes.isEmpty()) {
                        throw new InvalidRequestException(String.format("Cannot drop column %s because it has " + "dependent secondary indexes (%s)", def, dependentIndexes.stream().map(i -> i.name).collect(Collectors.joining(","))));
                    }
                }
                // If a column is dropped which is included in a view, we don't allow the drop to take place.
                boolean rejectAlter = false;
                StringBuilder viewNames = new StringBuilder();
                for (ViewMetadata view : views) {
                    if (!view.includes(columnName))
                        continue;
                    if (rejectAlter)
                        viewNames.append(',');
                    rejectAlter = true;
                    viewNames.append(view.name);
                }
                if (rejectAlter)
                    throw new InvalidRequestException(String.format("Cannot drop column %s, depended on by materialized views (%s.{%s})", columnName.toString(), keyspace(), viewNames.toString()));
            }
            break;
        case OPTS:
            if (attrs == null)
                throw new InvalidRequestException("ALTER TABLE WITH invoked, but no parameters found");
            attrs.validate();
            TableParams params = attrs.asAlteredTableParams(current.params);
            if (!Iterables.isEmpty(views) && params.gcGraceSeconds == 0) {
                throw new InvalidRequestException("Cannot alter gc_grace_seconds of the base table of a " + "materialized view to 0, since this value is used to TTL " + "undelivered updates. Setting gc_grace_seconds too low might " + "cause undelivered updates to expire " + "before being replayed.");
            }
            if (current.isCounter() && params.defaultTimeToLive > 0)
                throw new InvalidRequestException("Cannot set default_time_to_live on a table with counters");
            builder.params(params);
            break;
        case RENAME:
            for (Map.Entry<ColumnMetadata.Raw, ColumnMetadata.Raw> entry : renames.entrySet()) {
                ColumnIdentifier from = entry.getKey().getIdentifier(current);
                ColumnIdentifier to = entry.getValue().getIdentifier(current);
                def = current.getColumn(from);
                if (def == null)
                    throw new InvalidRequestException(String.format("Cannot rename unknown column %s in table %s", from, current.name));
                if (current.getColumn(to) != null)
                    throw new InvalidRequestException(String.format("Cannot rename column %s to %s in table %s; another column of that name already exist", from, to, current.name));
                if (!def.isPrimaryKeyColumn())
                    throw new InvalidRequestException(String.format("Cannot rename non PRIMARY KEY part %s", from));
                if (!current.indexes.isEmpty()) {
                    ColumnFamilyStore store = Keyspace.openAndGetStore(current);
                    Set<IndexMetadata> dependentIndexes = store.indexManager.getDependentIndexes(def);
                    if (!dependentIndexes.isEmpty())
                        throw new InvalidRequestException(String.format("Cannot rename column %s because it has " + "dependent secondary indexes (%s)", from, dependentIndexes.stream().map(i -> i.name).collect(Collectors.joining(","))));
                }
                builder.renamePrimaryKeyColumn(from, to);
                // If the view includes a renamed column, it must be renamed in the view table and the definition.
                for (ViewMetadata view : views) {
                    if (!view.includes(from))
                        continue;
                    ColumnIdentifier viewFrom = entry.getKey().getIdentifier(view.metadata);
                    ColumnIdentifier viewTo = entry.getValue().getIdentifier(view.metadata);
                    viewUpdates.add(view.renamePrimaryKeyColumn(viewFrom, viewTo));
                }
            }
            break;
    }
    // FIXME: Should really be a single announce for the table and views.
    MigrationManager.announceTableUpdate(builder.build(), isLocalOnly);
    for (ViewMetadata viewUpdate : viewUpdates) MigrationManager.announceViewUpdate(viewUpdate, isLocalOnly);
    return new Event.SchemaChange(Event.SchemaChange.Change.UPDATED, Event.SchemaChange.Target.TABLE, keyspace(), columnFamily());
}

Example 2 with ColumnMetadata

use of org.apache.cassandra.schema.ColumnMetadata in project cassandra by apache.

the class BatchStatement method executeInternalWithConditions.

private ResultMessage executeInternalWithConditions(BatchQueryOptions options, QueryState state) throws RequestExecutionException, RequestValidationException {
    Pair<CQL3CasRequest, Set<ColumnMetadata>> p = makeCasRequest(options, state);
    CQL3CasRequest request = p.left;
    Set<ColumnMetadata> columnsWithConditions = p.right;
    String ksName = request.metadata.keyspace;
    String tableName = request.metadata.name;
    try (RowIterator result = ModificationStatement.casInternal(request, state)) {
        return new ResultMessage.Rows(ModificationStatement.buildCasResultSet(ksName, tableName, result, columnsWithConditions, true, options.forStatement(0)));
    }
}

Example 3 with ColumnMetadata

use of org.apache.cassandra.schema.ColumnMetadata in project cassandra by apache.

the class ModificationStatement method buildCasFailureResultSet.

private static ResultSet buildCasFailureResultSet(RowIterator partition, Iterable<ColumnMetadata> columnsWithConditions, boolean isBatch, QueryOptions options) throws InvalidRequestException {
    TableMetadata metadata = partition.metadata();
    Selection selection;
    if (columnsWithConditions == null) {
        selection = Selection.wildcard(metadata);
    } else {
        // We can have multiple conditions on the same columns (for collections) so use a set
        // to avoid duplicate, but preserve the order just to it follows the order of IF in the query in general
        Set<ColumnMetadata> defs = new LinkedHashSet<>();
        // of batches for compatibility sakes).
        if (isBatch)
            Iterables.addAll(defs, metadata.primaryKeyColumns());
        Iterables.addAll(defs, columnsWithConditions);
        selection = Selection.forColumns(metadata, new ArrayList<>(defs));
    }
    Selection.ResultSetBuilder builder = selection.resultSetBuilder(options, false);
    SelectStatement.forSelection(metadata, selection).processPartition(partition, options, builder, FBUtilities.nowInSeconds());
    return builder.build();
}

Example 4 with ColumnMetadata

use of org.apache.cassandra.schema.ColumnMetadata in project cassandra by apache.

the class SelectStatement method gatherQueriedColumns.

// Note that the queried columns internally is different from the one selected by the
// user as it also include any column for which we have a restriction on.
private ColumnFilter gatherQueriedColumns() {
    if (selection.isWildcard())
        return ColumnFilter.all(table);
    ColumnFilter.Builder builder = ColumnFilter.allRegularColumnsBuilder(table);
    // Adds all selected columns
    for (ColumnMetadata def : selection.getColumns()) if (!def.isPrimaryKeyColumn())
        builder.add(def);
    // as well as any restricted column (so we can actually apply the restriction)
    builder.addAll(restrictions.nonPKRestrictedColumns(true));
    // (but no rows). In those cases, we should force querying all static columns (to make the distinction).
    if (table.hasStaticColumns() && returnStaticContentOnPartitionWithNoRows())
        builder.addAll(table.staticColumns());
    return builder.build();
}

Example 5 with ColumnMetadata

use of org.apache.cassandra.schema.ColumnMetadata in project cassandra by apache.

the class SingleColumnRelation method newSliceRestriction.

@Override
protected Restriction newSliceRestriction(TableMetadata table, VariableSpecifications boundNames, Bound bound, boolean inclusive) {
    ColumnMetadata columnDef = entity.prepare(table);
    if (columnDef.type.referencesDuration()) {
        checkFalse(columnDef.type.isCollection(), "Slice restrictions are not supported on collections containing durations");
        checkFalse(columnDef.type.isTuple(), "Slice restrictions are not supported on tuples containing durations");
        checkFalse(columnDef.type.isUDT(), "Slice restrictions are not supported on UDTs containing durations");
        throw invalidRequest("Slice restrictions are not supported on duration columns");
    }
    Term term = toTerm(toReceivers(columnDef), value, table.keyspace, boundNames);
    return new SingleColumnRestriction.SliceRestriction(columnDef, bound, inclusive, term);
}