Examples with SetPartitionsStatsRequest org.apache.hadoop.hive.metastore.api.SetPartitionsStatsRequest used on opensource projects

Example 6 with SetPartitionsStatsRequest

use of org.apache.hadoop.hive.metastore.api.SetPartitionsStatsRequest in project hive by apache.

the class ColumnStatsUpdateTask method persistColumnStats.

private int persistColumnStats(Hive db) throws HiveException, MetaException, IOException {
    ColumnStatistics colStats = constructColumnStatsFromInput();
    SetPartitionsStatsRequest request = new SetPartitionsStatsRequest(Collections.singletonList(colStats), Constants.HIVE_ENGINE);
    // non-null value only during replication.
    if (work.getColStats() != null) {
        String dbName = colStats.getStatsDesc().getDbName();
        String tblName = colStats.getStatsDesc().getTableName();
        Table tbl = db.getTable(dbName, tblName);
        long writeId = work.getWriteId();
        // associated with it.
        if (AcidUtils.isTransactionalTable(tbl)) {
            ValidWriteIdList writeIds;
            // We need a valid writeId list to update column statistics for a transactional table. We
            // do not have a valid writeId list which was used to update the column stats on the
            // source. But we know for sure that the writeId associated with the stats was valid then
            // (otherwise column stats update would have failed on the source). So use a valid
            // transaction list with only that writeId and use it to update the stats.
            writeIds = new ValidReaderWriteIdList(TableName.getDbTable(dbName, tblName), new long[0], new BitSet(), writeId);
            request.setValidWriteIdList(writeIds.toString());
            request.setWriteId(writeId);
        }
    }
    db.setPartitionColumnStatistics(request);
    return 0;
}