Examples with ColumnReference org.apache.phoenix.hbase.index.covered.update.ColumnReference used on opensource projects

Example 11 with ColumnReference

use of org.apache.phoenix.hbase.index.covered.update.ColumnReference in project phoenix by apache.

the class MetaDataClient method dropColumn.

public MutationState dropColumn(DropColumnStatement statement) throws SQLException {
    connection.rollback();
    boolean wasAutoCommit = connection.getAutoCommit();
    try {
        connection.setAutoCommit(false);
        PName tenantId = connection.getTenantId();
        TableName tableNameNode = statement.getTable().getName();
        String schemaName = tableNameNode.getSchemaName();
        String tableName = tableNameNode.getTableName();
        String fullTableName = SchemaUtil.getTableName(schemaName, tableName);
        boolean retried = false;
        while (true) {
            final ColumnResolver resolver = FromCompiler.getResolver(statement, connection);
            TableRef tableRef = resolver.getTables().get(0);
            PTable table = tableRef.getTable();
            List<ColumnName> columnRefs = statement.getColumnRefs();
            if (columnRefs == null) {
                columnRefs = Lists.newArrayListWithCapacity(0);
            }
            List<ColumnRef> columnsToDrop = Lists.newArrayListWithExpectedSize(columnRefs.size() + table.getIndexes().size());
            List<TableRef> indexesToDrop = Lists.newArrayListWithExpectedSize(table.getIndexes().size());
            List<Mutation> tableMetaData = Lists.newArrayListWithExpectedSize((table.getIndexes().size() + 1) * (1 + table.getColumns().size() - columnRefs.size()));
            List<PColumn> tableColumnsToDrop = Lists.newArrayListWithExpectedSize(columnRefs.size());
            for (ColumnName column : columnRefs) {
                ColumnRef columnRef = null;
                try {
                    columnRef = resolver.resolveColumn(null, column.getFamilyName(), column.getColumnName());
                } catch (ColumnNotFoundException e) {
                    if (statement.ifExists()) {
                        return new MutationState(0, 0, connection);
                    }
                    throw e;
                }
                PColumn columnToDrop = columnRef.getColumn();
                tableColumnsToDrop.add(columnToDrop);
                if (SchemaUtil.isPKColumn(columnToDrop)) {
                    throw new SQLExceptionInfo.Builder(SQLExceptionCode.CANNOT_DROP_PK).setColumnName(columnToDrop.getName().getString()).build().buildException();
                } else if (table.isAppendOnlySchema()) {
                    throw new SQLExceptionInfo.Builder(SQLExceptionCode.CANNOT_DROP_COL_APPEND_ONLY_SCHEMA).setColumnName(columnToDrop.getName().getString()).build().buildException();
                }
                columnsToDrop.add(new ColumnRef(columnRef.getTableRef(), columnToDrop.getPosition()));
            }
            dropColumnMutations(table, tableColumnsToDrop);
            boolean removedIndexTableOrColumn = false;
            Long timeStamp = table.isTransactional() ? tableRef.getTimeStamp() : null;
            for (PTable index : table.getIndexes()) {
                IndexMaintainer indexMaintainer = index.getIndexMaintainer(table, connection);
                // get the covered columns 
                List<PColumn> indexColumnsToDrop = Lists.newArrayListWithExpectedSize(columnRefs.size());
                Set<Pair<String, String>> indexedColsInfo = indexMaintainer.getIndexedColumnInfo();
                Set<ColumnReference> coveredCols = indexMaintainer.getCoveredColumns();
                for (PColumn columnToDrop : tableColumnsToDrop) {
                    Pair<String, String> columnToDropInfo = new Pair<>(columnToDrop.getFamilyName().getString(), columnToDrop.getName().getString());
                    ColumnReference colDropRef = new ColumnReference(columnToDrop.getFamilyName() == null ? null : columnToDrop.getFamilyName().getBytes(), columnToDrop.getColumnQualifierBytes());
                    boolean isColumnIndexed = indexedColsInfo.contains(columnToDropInfo);
                    if (isColumnIndexed) {
                        if (index.getViewIndexId() == null) {
                            indexesToDrop.add(new TableRef(index));
                        }
                        connection.removeTable(tenantId, SchemaUtil.getTableName(schemaName, index.getName().getString()), index.getParentName() == null ? null : index.getParentName().getString(), index.getTimeStamp());
                        removedIndexTableOrColumn = true;
                    } else if (coveredCols.contains(colDropRef)) {
                        String indexColumnName = IndexUtil.getIndexColumnName(columnToDrop);
                        PColumn indexColumn = index.getColumnForColumnName(indexColumnName);
                        indexColumnsToDrop.add(indexColumn);
                        // add the index column to be dropped so that we actually delete the column values
                        columnsToDrop.add(new ColumnRef(new TableRef(index), indexColumn.getPosition()));
                        removedIndexTableOrColumn = true;
                    }
                }
                if (!indexColumnsToDrop.isEmpty()) {
                    long indexTableSeqNum = incrementTableSeqNum(index, index.getType(), -indexColumnsToDrop.size(), null, null);
                    dropColumnMutations(index, indexColumnsToDrop);
                    long clientTimestamp = MutationState.getMutationTimestamp(timeStamp, connection.getSCN());
                    connection.removeColumn(tenantId, index.getName().getString(), indexColumnsToDrop, clientTimestamp, indexTableSeqNum, TransactionUtil.getResolvedTimestamp(connection, index.isTransactional(), clientTimestamp));
                }
            }
            tableMetaData.addAll(connection.getMutationState().toMutations(timeStamp).next().getSecond());
            connection.rollback();
            long seqNum = incrementTableSeqNum(table, statement.getTableType(), -tableColumnsToDrop.size(), null, null);
            tableMetaData.addAll(connection.getMutationState().toMutations(timeStamp).next().getSecond());
            connection.rollback();
            // Force table header to be first in list
            Collections.reverse(tableMetaData);
            /*
                 * Ensure our "empty column family to be" exists. Somewhat of an edge case, but can occur if we drop the last column
                 * in a column family that was the empty column family. In that case, we have to pick another one. If there are no other
                 * ones, then we need to create our default empty column family. Note that this may no longer be necessary once we
                 * support declaring what the empty column family is on a table, as:
                 * - If you declare it, we'd just ensure it's created at DDL time and never switch what it is unless you change it
                 * - If you don't declare it, we can just continue to use the old empty column family in this case, dynamically updating
                 *    the empty column family name on the PTable.
                 */
            for (ColumnRef columnRefToDrop : columnsToDrop) {
                PTable tableContainingColumnToDrop = columnRefToDrop.getTable();
                byte[] emptyCF = getNewEmptyColumnFamilyOrNull(tableContainingColumnToDrop, columnRefToDrop.getColumn());
                if (emptyCF != null) {
                    try {
                        tableContainingColumnToDrop.getColumnFamily(emptyCF);
                    } catch (ColumnFamilyNotFoundException e) {
                        // Only if it's not already a column family do we need to ensure it's created
                        Map<String, List<Pair<String, Object>>> family = new HashMap<>(1);
                        family.put(Bytes.toString(emptyCF), Collections.<Pair<String, Object>>emptyList());
                        // Just use a Put without any key values as the Mutation, as addColumn will treat this specially
                        // TODO: pass through schema name and table name instead to these methods as it's cleaner
                        byte[] tenantIdBytes = connection.getTenantId() == null ? null : connection.getTenantId().getBytes();
                        if (tenantIdBytes == null)
                            tenantIdBytes = ByteUtil.EMPTY_BYTE_ARRAY;
                        connection.getQueryServices().addColumn(Collections.<Mutation>singletonList(new Put(SchemaUtil.getTableKey(tenantIdBytes, tableContainingColumnToDrop.getSchemaName().getBytes(), tableContainingColumnToDrop.getTableName().getBytes()))), tableContainingColumnToDrop, family, Sets.newHashSet(Bytes.toString(emptyCF)), Collections.<PColumn>emptyList());
                    }
                }
            }
            MetaDataMutationResult result = connection.getQueryServices().dropColumn(tableMetaData, statement.getTableType());
            try {
                MutationCode code = processMutationResult(schemaName, tableName, result);
                if (code == MutationCode.COLUMN_NOT_FOUND) {
                    addTableToCache(result);
                    if (!statement.ifExists()) {
                        throw new ColumnNotFoundException(schemaName, tableName, Bytes.toString(result.getFamilyName()), Bytes.toString(result.getColumnName()));
                    }
                    return new MutationState(0, 0, connection);
                }
                // the server when needed.
                if (tableColumnsToDrop.size() > 0) {
                    if (removedIndexTableOrColumn)
                        connection.removeTable(tenantId, tableName, table.getParentName() == null ? null : table.getParentName().getString(), table.getTimeStamp());
                    else
                        connection.removeColumn(tenantId, SchemaUtil.getTableName(schemaName, tableName), tableColumnsToDrop, result.getMutationTime(), seqNum, TransactionUtil.getResolvedTime(connection, result));
                }
                // If we have a VIEW, then only delete the metadata, and leave the table data alone
                if (table.getType() != PTableType.VIEW) {
                    MutationState state = null;
                    connection.setAutoCommit(true);
                    Long scn = connection.getSCN();
                    // Delete everything in the column. You'll still be able to do queries at earlier timestamps
                    long ts = (scn == null ? result.getMutationTime() : scn);
                    PostDDLCompiler compiler = new PostDDLCompiler(connection);
                    boolean dropMetaData = connection.getQueryServices().getProps().getBoolean(DROP_METADATA_ATTRIB, DEFAULT_DROP_METADATA);
                    // if the index is a local index or view index it uses a shared physical table
                    // so we need to issue deletes markers for all the rows of the index
                    final List<TableRef> tableRefsToDrop = Lists.newArrayList();
                    Map<String, List<TableRef>> tenantIdTableRefMap = Maps.newHashMap();
                    if (result.getSharedTablesToDelete() != null) {
                        for (SharedTableState sharedTableState : result.getSharedTablesToDelete()) {
                            PTableImpl viewIndexTable = new PTableImpl(sharedTableState.getTenantId(), sharedTableState.getSchemaName(), sharedTableState.getTableName(), ts, table.getColumnFamilies(), sharedTableState.getColumns(), sharedTableState.getPhysicalNames(), sharedTableState.getViewIndexId(), table.isMultiTenant(), table.isNamespaceMapped(), table.getImmutableStorageScheme(), table.getEncodingScheme(), table.getEncodedCQCounter(), table.useStatsForParallelization());
                            TableRef indexTableRef = new TableRef(viewIndexTable);
                            PName indexTableTenantId = sharedTableState.getTenantId();
                            if (indexTableTenantId == null) {
                                tableRefsToDrop.add(indexTableRef);
                            } else {
                                if (!tenantIdTableRefMap.containsKey(indexTableTenantId)) {
                                    tenantIdTableRefMap.put(indexTableTenantId.getString(), Lists.<TableRef>newArrayList());
                                }
                                tenantIdTableRefMap.get(indexTableTenantId.getString()).add(indexTableRef);
                            }
                        }
                    }
                    // they would have been dropped in ConnectionQueryServices.dropColumn)
                    if (!dropMetaData) {
                        tableRefsToDrop.addAll(indexesToDrop);
                    }
                    // Drop any index tables that had the dropped column in the PK
                    state = connection.getQueryServices().updateData(compiler.compile(tableRefsToDrop, null, null, Collections.<PColumn>emptyList(), ts));
                    // Drop any tenant-specific indexes
                    if (!tenantIdTableRefMap.isEmpty()) {
                        for (Entry<String, List<TableRef>> entry : tenantIdTableRefMap.entrySet()) {
                            String indexTenantId = entry.getKey();
                            Properties props = new Properties(connection.getClientInfo());
                            props.setProperty(PhoenixRuntime.TENANT_ID_ATTRIB, indexTenantId);
                            try (PhoenixConnection tenantConn = new PhoenixConnection(connection, connection.getQueryServices(), props)) {
                                PostDDLCompiler dropCompiler = new PostDDLCompiler(tenantConn);
                                state = tenantConn.getQueryServices().updateData(dropCompiler.compile(entry.getValue(), null, null, Collections.<PColumn>emptyList(), ts));
                            }
                        }
                    }
                    // See https://issues.apache.org/jira/browse/PHOENIX-3605
                    if (!table.isImmutableRows() || table.getImmutableStorageScheme() == ImmutableStorageScheme.ONE_CELL_PER_COLUMN) {
                        // Update empty key value column if necessary
                        for (ColumnRef droppedColumnRef : columnsToDrop) {
                            // Painful, but we need a TableRef with a pre-set timestamp to prevent attempts
                            // to get any updates from the region server.
                            // TODO: move this into PostDDLCompiler
                            // TODO: consider filtering mutable indexes here, but then the issue is that
                            // we'd need to force an update of the data row empty key value if a mutable
                            // secondary index is changing its empty key value family.
                            droppedColumnRef = droppedColumnRef.cloneAtTimestamp(ts);
                            TableRef droppedColumnTableRef = droppedColumnRef.getTableRef();
                            PColumn droppedColumn = droppedColumnRef.getColumn();
                            MutationPlan plan = compiler.compile(Collections.singletonList(droppedColumnTableRef), getNewEmptyColumnFamilyOrNull(droppedColumnTableRef.getTable(), droppedColumn), null, Collections.singletonList(droppedColumn), ts);
                            state = connection.getQueryServices().updateData(plan);
                        }
                    }
                    // Return the last MutationState
                    return state;
                }
                return new MutationState(0, 0, connection);
            } catch (ConcurrentTableMutationException e) {
                if (retried) {
                    throw e;
                }
                table = connection.getTable(new PTableKey(tenantId, fullTableName));
                retried = true;
            }
        }
    } finally {
        connection.setAutoCommit(wasAutoCommit);
    }
}

Example 12 with ColumnReference

use of org.apache.phoenix.hbase.index.covered.update.ColumnReference in project phoenix by apache.

the class IndexMaintainerTest method tesIndexedExpressionSerialization.

@Test
public void tesIndexedExpressionSerialization() throws Exception {
    Properties props = PropertiesUtil.deepCopy(TestUtil.TEST_PROPERTIES);
    Connection conn = DriverManager.getConnection(getUrl(), props);
    try {
        conn.setAutoCommit(true);
        conn.createStatement().execute("CREATE TABLE IF NOT EXISTS FHA (ORGANIZATION_ID CHAR(15) NOT NULL, PARENT_ID CHAR(15) NOT NULL, CREATED_DATE DATE NOT NULL, ENTITY_HISTORY_ID CHAR(15) NOT NULL, FIELD_HISTORY_ARCHIVE_ID CHAR(15), CREATED_BY_ID VARCHAR, FIELD VARCHAR, DATA_TYPE VARCHAR, OLDVAL_STRING VARCHAR, NEWVAL_STRING VARCHAR, OLDVAL_FIRST_NAME VARCHAR, NEWVAL_FIRST_NAME VARCHAR, OLDVAL_LAST_NAME VARCHAR, NEWVAL_LAST_NAME VARCHAR, OLDVAL_NUMBER DECIMAL, NEWVAL_NUMBER DECIMAL, OLDVAL_DATE DATE,  NEWVAL_DATE DATE, ARCHIVE_PARENT_TYPE VARCHAR, ARCHIVE_FIELD_NAME VARCHAR, ARCHIVE_TIMESTAMP DATE, ARCHIVE_PARENT_NAME VARCHAR, DIVISION INTEGER, CONNECTION_ID VARCHAR CONSTRAINT PK PRIMARY KEY (ORGANIZATION_ID, PARENT_ID, CREATED_DATE DESC, ENTITY_HISTORY_ID )) VERSIONS=1,MULTI_TENANT=true");
        conn.createStatement().execute("CREATE INDEX IDX ON FHA (FIELD_HISTORY_ARCHIVE_ID, UPPER(OLDVAL_STRING) || UPPER(NEWVAL_STRING), NEWVAL_DATE - NEWVAL_DATE)");
        PhoenixConnection pconn = conn.unwrap(PhoenixConnection.class);
        PTable table = pconn.getTable(new PTableKey(pconn.getTenantId(), "FHA"));
        ImmutableBytesWritable ptr = new ImmutableBytesWritable();
        table.getIndexMaintainers(ptr, pconn);
        List<IndexMaintainer> indexMaintainerList = IndexMaintainer.deserialize(ptr, GenericKeyValueBuilder.INSTANCE, true);
        assertEquals(1, indexMaintainerList.size());
        IndexMaintainer indexMaintainer = indexMaintainerList.get(0);
        Set<ColumnReference> indexedColumns = indexMaintainer.getIndexedColumns();
        assertEquals("Unexpected Number of indexed columns ", indexedColumns.size(), 4);
    } finally {
        conn.close();
    }
}

Example 13 with ColumnReference

use of org.apache.phoenix.hbase.index.covered.update.ColumnReference in project phoenix by apache.

the class IndexMaintainerTest method testIndexRowKeyBuilding.

private void testIndexRowKeyBuilding(String schemaName, String tableName, String dataColumns, String pk, String indexColumns, Object[] values, String includeColumns, String dataProps, String indexProps, KeyValueBuilder builder) throws Exception {
    Connection conn = DriverManager.getConnection(getUrl());
    String fullTableName = SchemaUtil.getTableName(SchemaUtil.normalizeIdentifier(schemaName), SchemaUtil.normalizeIdentifier(tableName));
    String fullIndexName = SchemaUtil.getTableName(SchemaUtil.normalizeIdentifier(schemaName), SchemaUtil.normalizeIdentifier("idx"));
    conn.createStatement().execute("CREATE TABLE " + fullTableName + "(" + dataColumns + " CONSTRAINT pk PRIMARY KEY (" + pk + "))  " + (dataProps.isEmpty() ? "" : dataProps));
    try {
        conn.createStatement().execute("CREATE INDEX idx ON " + fullTableName + "(" + indexColumns + ") " + (includeColumns.isEmpty() ? "" : "INCLUDE (" + includeColumns + ") ") + (indexProps.isEmpty() ? "" : indexProps));
        PhoenixConnection pconn = conn.unwrap(PhoenixConnection.class);
        PTable table = pconn.getTable(new PTableKey(pconn.getTenantId(), fullTableName));
        PTable index = pconn.getTable(new PTableKey(pconn.getTenantId(), fullIndexName));
        ImmutableBytesWritable ptr = new ImmutableBytesWritable();
        table.getIndexMaintainers(ptr, pconn);
        List<IndexMaintainer> c1 = IndexMaintainer.deserialize(ptr, builder, true);
        assertEquals(1, c1.size());
        IndexMaintainer im1 = c1.get(0);
        StringBuilder buf = new StringBuilder("UPSERT INTO " + fullTableName + " VALUES(");
        for (int i = 0; i < values.length; i++) {
            buf.append("?,");
        }
        buf.setCharAt(buf.length() - 1, ')');
        PreparedStatement stmt = conn.prepareStatement(buf.toString());
        for (int i = 0; i < values.length; i++) {
            stmt.setObject(i + 1, values[i]);
        }
        stmt.execute();
        Iterator<Pair<byte[], List<KeyValue>>> iterator = PhoenixRuntime.getUncommittedDataIterator(conn);
        List<KeyValue> dataKeyValues = iterator.next().getSecond();
        Map<ColumnReference, byte[]> valueMap = Maps.newHashMapWithExpectedSize(dataKeyValues.size());
        byte[] row = dataKeyValues.get(0).getRow();
        ImmutableBytesWritable rowKeyPtr = new ImmutableBytesWritable(row);
        Put dataMutation = new Put(rowKeyPtr.copyBytes());
        for (KeyValue kv : dataKeyValues) {
            valueMap.put(new ColumnReference(kv.getFamily(), kv.getQualifier()), kv.getValue());
            dataMutation.add(kv);
        }
        ValueGetter valueGetter = newValueGetter(row, valueMap);
        List<Mutation> indexMutations = IndexTestUtil.generateIndexData(index, table, dataMutation, ptr, builder);
        assertEquals(1, indexMutations.size());
        assertTrue(indexMutations.get(0) instanceof Put);
        Mutation indexMutation = indexMutations.get(0);
        ImmutableBytesWritable indexKeyPtr = new ImmutableBytesWritable(indexMutation.getRow());
        ptr.set(rowKeyPtr.get(), rowKeyPtr.getOffset(), rowKeyPtr.getLength());
        byte[] mutablelndexRowKey = im1.buildRowKey(valueGetter, ptr, null, null);
        byte[] immutableIndexRowKey = indexKeyPtr.copyBytes();
        assertArrayEquals(immutableIndexRowKey, mutablelndexRowKey);
        for (ColumnReference ref : im1.getCoveredColumns()) {
            valueMap.get(ref);
        }
        byte[] dataRowKey = im1.buildDataRowKey(indexKeyPtr, null);
        assertArrayEquals(dataRowKey, dataKeyValues.get(0).getRow());
    } finally {
        try {
            conn.createStatement().execute("DROP TABLE " + fullTableName);
        } finally {
            conn.close();
        }
    }
}

Example 14 with ColumnReference

use of org.apache.phoenix.hbase.index.covered.update.ColumnReference in project phoenix by apache.

the class GroupedAggregateRegionObserver method doPostScannerOpen.

/**
     * Replaces the RegionScanner s with a RegionScanner that groups by the key formed by the list
     * of expressions from the scan and returns the aggregated rows of each group. For example,
     * given the following original rows in the RegionScanner: KEY COL1 row1 a row2 b row3 a row4 a
     * the following rows will be returned for COUNT(*): KEY COUNT a 3 b 1 The client is required to
     * do a sort and a final aggregation, since multiple rows with the same key may be returned from
     * different regions.
     */
@Override
protected RegionScanner doPostScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Scan scan, RegionScanner s) throws IOException {
    boolean keyOrdered = false;
    byte[] expressionBytes = scan.getAttribute(BaseScannerRegionObserver.UNORDERED_GROUP_BY_EXPRESSIONS);
    if (expressionBytes == null) {
        expressionBytes = scan.getAttribute(BaseScannerRegionObserver.KEY_ORDERED_GROUP_BY_EXPRESSIONS);
        keyOrdered = true;
    }
    int offset = 0;
    if (ScanUtil.isLocalIndex(scan)) {
        /*
             * For local indexes, we need to set an offset on row key expressions to skip
             * the region start key.
             */
        Region region = c.getEnvironment().getRegion();
        offset = region.getRegionInfo().getStartKey().length != 0 ? region.getRegionInfo().getStartKey().length : region.getRegionInfo().getEndKey().length;
        ScanUtil.setRowKeyOffset(scan, offset);
    }
    List<Expression> expressions = deserializeGroupByExpressions(expressionBytes, 0);
    ServerAggregators aggregators = ServerAggregators.deserialize(scan.getAttribute(BaseScannerRegionObserver.AGGREGATORS), c.getEnvironment().getConfiguration());
    RegionScanner innerScanner = s;
    boolean useProto = false;
    byte[] localIndexBytes = scan.getAttribute(LOCAL_INDEX_BUILD_PROTO);
    useProto = localIndexBytes != null;
    if (localIndexBytes == null) {
        localIndexBytes = scan.getAttribute(LOCAL_INDEX_BUILD);
    }
    List<IndexMaintainer> indexMaintainers = localIndexBytes == null ? null : IndexMaintainer.deserialize(localIndexBytes, useProto);
    TupleProjector tupleProjector = null;
    byte[][] viewConstants = null;
    ColumnReference[] dataColumns = IndexUtil.deserializeDataTableColumnsToJoin(scan);
    final TupleProjector p = TupleProjector.deserializeProjectorFromScan(scan);
    final HashJoinInfo j = HashJoinInfo.deserializeHashJoinFromScan(scan);
    boolean useQualifierAsIndex = EncodedColumnsUtil.useQualifierAsIndex(EncodedColumnsUtil.getMinMaxQualifiersFromScan(scan));
    if (ScanUtil.isLocalIndex(scan) || (j == null && p != null)) {
        if (dataColumns != null) {
            tupleProjector = IndexUtil.getTupleProjector(scan, dataColumns);
            viewConstants = IndexUtil.deserializeViewConstantsFromScan(scan);
        }
        ImmutableBytesPtr tempPtr = new ImmutableBytesPtr();
        innerScanner = getWrappedScanner(c, innerScanner, offset, scan, dataColumns, tupleProjector, c.getEnvironment().getRegion(), indexMaintainers == null ? null : indexMaintainers.get(0), viewConstants, p, tempPtr, useQualifierAsIndex);
    }
    if (j != null) {
        innerScanner = new HashJoinRegionScanner(innerScanner, p, j, ScanUtil.getTenantId(scan), c.getEnvironment(), useQualifierAsIndex, useNewValueColumnQualifier);
    }
    long limit = Long.MAX_VALUE;
    byte[] limitBytes = scan.getAttribute(GROUP_BY_LIMIT);
    if (limitBytes != null) {
        limit = PInteger.INSTANCE.getCodec().decodeInt(limitBytes, 0, SortOrder.getDefault());
    }
    if (keyOrdered) {
        // already in the required group by key order
        return scanOrdered(c, scan, innerScanner, expressions, aggregators, limit);
    } else {
        // Otherwse, collect them all up in an in memory map
        return scanUnordered(c, scan, innerScanner, expressions, aggregators, limit);
    }
}

Example 15 with ColumnReference

use of org.apache.phoenix.hbase.index.covered.update.ColumnReference in project phoenix by apache.

the class TestColumnTracker method testHasNewerTimestamps.

@Test
public void testHasNewerTimestamps() throws Exception {
    Collection<ColumnReference> columns = new ArrayList<ColumnReference>();
    ColumnTracker tracker = new ColumnTracker(columns);
    assertFalse("Tracker has newer timestamps when no ts set", tracker.hasNewerTimestamps());
    tracker.setTs(10);
    assertTrue("Tracker doesn't have newer timetamps with set ts", tracker.hasNewerTimestamps());
}