Hive Change Log

Release 0.4.0 - Unreleased

• INCOMPATIBLE CHANGES    (2)
  1. HIVE-143. Remove the old file based metastore, in favour of the RDBMS based metastore.
     (prasadc via johan)
  2. HIVE-724. Change HiveServer.getSchema() to return Hive types rather than Thrift types. Changed existing getSchema() to getThriftSchema()
     (Eric Hwang via rmurthy)
• NEW FEATURES    (46)
  1. HIVE-354. UDF for length of a string. (Neil Conway via namit).
  2. HIVE-402. Implement UDF regexp.
     (Raghotham Murthy via namit)
  3. HIVE-250. Shared memory java dbm for map-side joins.
     (Joydeep Sen Sarma via zshao)
  4. HIVE-164. Use CASE through GenericUDF
     (Zheng Shao via namit)
  5. HIVE-464. Add alter partition method to the meastore interface.
     (Prasad Chakka via zshao)
  6. HIVE-352. Column-based storage format RCFile.
     (Yongqiang He via zshao)
  7. HIVE-420. Support regular expressions for column names
     (Zheng Shao via namit)
  8. HIVE-463. Add a pre execution hook to ql
     (Ashish Thusoo via prasadc)
  9. HIVE-476. Add getTable and getPartition calls to the ReadEntity and WriteEntity objects in PreExecute hooks.
     (Ashish Thusoo via prasadc)
  10. HIVE-518. Add test mode to hive where input tables are sampled.
      (Namit Jain via rmurthy)
  11. HIVE-509. Add create table like.
      (Zheng Shao via namit)
  12. HIVE-195. Map-side join.
      (Namit Jain via zshao)
  13. HIVE-470. Add COALESCE.
      (Zheng Shao via namit)
  14. HIVE-460. Improve Column Pruning.
      (He Yongqiang via namit)
  15. HIVE-563. UDF for parsing the URL: parse_url.
      (Suresh Antony via zshao)
  16. HIVE-338. add/delete jar commands, Hive Server fix for multithreading, cli commands via hiveserver
      (Min Zhou and Joydeep Sen Sarma via jssarma)
  17. HIVE-338. Postfix for HIVE-338.
      (zshao)
  18. HIVE-567. jdbc: integrate hive with pentaho report designer
      (Raghotham Murthy via namit)
  19. HIVE-136. escaping in lazy serde
      (Zheng Shao via namit)
  20. HIVE-603. list of maps and vice versa
      (Zheng Shao via namit)
  21. HIVE-553. add BinarySortableSerDe
      (Zheng Shao via namit)
  22. HIVE-622. add UDF reverse
      (Emil Ibrishimov via namit)
  23. HIVE-438. Make Hive work with apache thrift
      (Raghu Murthy via namit)
  24. HIVE-522. Extend GenericUDAF to support complex types
      (Zheng Shao via namit)
  25. HIVE-541. add UDF locate and instr
      (Min Zhou via namit)
  26. HIVE-646. add UDF conv, bin and hex
      (Emil Ibrishimov via namit)
  27. HIVE-512. add UDF elt.
      (Min Zhou via namit)
  28. HIVE-609. Optimize multi-group by.
      (Namit Jain via zshao)
  29. HIVE-642. add UDF split
      (Emil Ibrishimov via namit)
  30. HIVE-639. create contrib directory
      (Zheng Shao via namit)
  31. HIVE-674. add UDFs sin, cos, asin, acos
      (Karan Mangla via namit)
  32. HIVE-668. add UDFs abs, ascii, repeat, lpad, rpad, space, substring
      (Emil Ibrishimov via namit)
  33. HIVE-167. add regex serde
      (Zheng Shao via namit)
  34. HIVE-665. Get hadoop/mapreduce cluster status from hive server
      (Eric Hwang via rmurthy)
  35. HIVE-580. add 'show functions {pattern}'
      (Scott Chen via namit)
  36. HIVE-656. Add a PMOD (POSITIVE MOD) function.
      (Scott Chen via zshao)
  37. HIVE-698. Add create temporary function for generic UDAF.
      (Zheng Shao via namit)
  38. HIVE-607. Add udafs for variance and standard deviation
      (Emil Ibrishimov via namit)
  39. HIVE-487. Make hive compatibale with hadoop 20
      (Todd Lipcon via namit)
  40. HIVE-640. Add LazyBinarySerDe to Hive.
      (Yuntao Jia via zshao)
  41. HIVE-729. Make AS in select list optional.
      (Zheng Shao via namit)
  42. HIVE-691. show documentation for functions.
      (Emil Ibrishimov via namit)
  43. HIVE-743. Let user specify serde for custom sctipts.
      (Namit Jain via rmurthy)
  44. HIVE-749. add hive.optimize.pruner
      (Zheng Shao via namit)
  45. HIVE-748. Test for extracting urls.
      (Namit Jain via zshao)
  46. HIVE-187. Preliminary ODBC Support.
      (Eric Hwang via rmurthy)
• IMPROVEMENTS    (34)
  1. HIVE-389. Option to build without ivy
     (jssarma)
  2. HIVE-360. Generalize the FileFormat Interface in Hive.
     (He Yongqiang via zshao)
  3. HIVE-406. Build file improvements. (Joydeep Sen Sarma via zshao).
  4. HIVE-254. Link jobtracker from Hive History in Hive Web Interface.
     (Edward Capriolo via athusoo)
  5. HIVE-502. Optimize RCFile's performance by removeing all synchronized modifiers.
     (Yongqiang He via zshao)
  6. HIVE-204. Provide option to run tests with MiniMRCluster.
     (Namit Jain via athusoo)
  7. HIVE-511. Make DoubleWritable's hashCode more uniform.
     (Zheng Shao via rmurthy)
  8. HIVE-490. Add missing configuration variables to hive-default.xml.
     (Yongqiang He via zshao)
  9. HIVE-528. Map Join followup: split MapJoinObject into MapJoinObjectKey and MapJoinObjectValue.
     (Namit Jain via zshao)
  10. HIVE-542. UDF: Faster String Like.
      (Yuntao Jia via zshao)
  11. HIVE-521. Move size, if, isnull, isnotnull to GenericUDF.
      (Min Zhou via zshao)
  12. HIVE-439. Merge small files after a map-only job.
      (Namit Jain via zshao)
  13. HIVE-516. Enable predicate pushdown for junit tests.
      (Prasad Chakka via zshao)
  14. HIVE-530. Map Join followup: optimize number of map-reduce jobs.
      (Namit Jain via zshao)
  15. HIVE-445. Upgrade JPOX to datanuclues plugins.
      (Prasad Chakka via zshao)
  16. HIVE-593. UDF and GenericUDF clean-up.
      (Zheng Shao via pchakka)
  17. HIVE-605. Change eclipse classpath for datanuclues.
      (Prasad Chakka via zshao)
  18. HIVE-461. Optimize RCFile reading by using column pruning results.
      (Yongqiang He via zshao)
  19. HIVE-628. Remove stray lines from hive-default.xml.
      (Prasad Chakka via zshao)
  20. HIVE-629. Concat files for map-reduce jobs.
      (Namit Jain via zshao)
  21. HIVE-644. Change default size for merging files to 256MB.
      (Namit Jain via zshao)
  22. HIVE-405. Cleanup operator initialization.
      (Prasad Chakka via zshao)
  23. HIVE-652. Turn off auto-merge for insert local.
      (Namit Jain via zshao)
  24. HIVE-677. Operators to show number of rows forwarded.
      (Namit Jain via zshao)
  25. HIVE-689. Dump more memory stat periodically.
      (Namit Jain via zshao)
  26. HIVE-280. Reserve keywords such as database etc.
      (Namit Jain via zshao)
  27. HIVE-720. Improve ByteStream by removing all synchronized method calls.
      (Yongqiang He via zshao)
  28. HIVE-454. Support escaping of ; in cli.
      (Edward Capriolo via namit)
  29. HIVE-736. Provide a function in Metastore to return the schema of a table.
      (Eric Hwang via rmurthy)
  30. HIVE-617. Add 'jar' service to hive client shell.
      (Edward Capriolo via rmurthy)
  31. HIVE-578. Refactor partition pruning.
      (Ashish Thusoo via namit)
  32. HIVE-737. Support having hadoop jars in HADOOP_HOME/build for running hive cli.
      (Johan Oskarsson via athusoo)
  33. HIVE-760. Add version info to META-INF/MANIFEST.MF
      (Bill Graham via rmurthy)
  34. HIVE-679. Adding the basic JDBC methods to allow querying using the SQuirrelSQL tool.
      (Bill Graham via rmurthy)
• OPTIMIZATIONS    (5)
  1. HIVE-279. Predicate Pushdown support (Prasad Chakka via athusoo).
  2. HIVE-266. Use Text instead of String (Zheng Shao via namit).
  3. HIVE-427. Add missing config parameters in hive-default.xml.
     (Namit Jain via zshao)
  4. HIVE-462. Avoid Text->String->Text conversion
     (Namit Jain via zshao)
  5. HIVE-610. Move all properties from jpox.properties to hive-site.xml.
     (Prasad Chakka via zshao)
• BUG FIXES    (106)
  1. HIVE-381. Fix JDBC HiveResultSet's next function.
     (Kim P via namit)
  2. HIVE-387. Use URI from FileSystem Object instead of from HADOOPFS directly.
     (jssarma)
  3. HIVE-385. Split Driver's run into compile and execute.
     (Neil Conway via namit)
  4. HIVE-393. Remove unnecessary checks in movetask for file type.
     (Zheng Shao via namit)
  5. HIVE-403. remove password param from job config that is submitted to job tracker and from log
     (Prasad Chakka)
  6. HIVE-407. fix permissions for test scripts in release tarball.
     (Ashish Thusoo via namit)
  7. HIVE-414. Add Hive Web Interface code to Eclipse config
     (Prasad Chakka)
  8. HIVE-372. Fix UDF memory consumptions and bad error messages.
     (Zheng Shao via namit)
  9. HIVE-413. Fix multi-table insert.
     (Namit Jain via zshao)
  10. HIVE-415. Fix long query parsing problems. (Zheng Shao via namit).
  11. HIVE-421. Fix union followed by multi-table insert. (Namit Jain via zshao).
  12. HIVE-423. Change launch templates to use hive_model.jar.
      (Raghotham Murthy via zshao)
  13. HIVE-426. Fix undeterministic query plan because of aliasToWork.
      (Namit Jain via zshao)
  14. HIVE-404. Fix ordering in "SELECT * FROM t SORT BY col1 LIMIT 100" when query is a outer-most query.
      (Namit Jain via zshao)
  15. HIVE-432. Fix "SORT BY" using only one reducer.
      (Zheng Shao via namit)
  16. HIVE-435. Fix Null pointer exception if password is null.
      (Prasad Chakka via namit)
  17. HIVE-437. Allow both table.name and col.field
      (Zheng Shao via namit)
  18. HIVE-366. testParse should not depend on a static field
      (Zheng Shao via namit)
  19. HIVE-433. Fixed union18 and union19 tests.
      (athusoo via johan)
  20. HIVE-324. Fix AccessControlException when loading data.
      (Ashish Thusoo via zshao)
  21. HIVE-395. Fix build problems with eclipse and 0.19 hadoop.
      (Neil Conway via athusoo)
  22. HIVE-456. Add option to run junit tests in quiet mode.
      (Zheng Shao via prasadc)
  23. HIVE-453. Use FileSystem derived from user supplied path when present instead of default.
      (Joydeep Sen Sarma via prasadc)
  24. HIVE-442. Create partitions after data is moved in the query in order to close out an inconsistent window.
      (Prasad Chakka via athusoo)
  25. HIVE-483. Fix incorect handling of comments in middle of a query
      (Namit Jain via athusoo)
  26. HIVE-486. Fix concurrent modification exception in case of empty partitions
      (Namit Jain via prasadc)
  27. HIVE-485. Fix join not to assume all columns are strings.
      (Namit Jain via zshao)
  28. HIVE-488. Fix load partition for table with multiple partition columns.
      (Prasad Chakka via athusoo)
  29. HIVE-496. UDFDate fails on null.
      (Zheng Shao via pchakka)
  30. HIVE-498. Fix null pointer exception in UDFRegExp when the expression string is empty.
      (Zheng Shao via athusoo)
  31. HIVE-410: Heartbeating for streaming jobs should not depend on stdout.
      (Ashish Thusoo via namit)
  32. HIVE-499. Fix for CAST operator on the same type.
      (Zheng Shao via athusoo)
  33. HIVE-501. Fix UDFLower() bug.
      (Zheng Shao via prasadc)
  34. HIVE-505. console.info prints to stderr.
      (Raghotham Murthy via namit)
  35. HIVE-504. Fix script operator with empty input file.
      (Raghotham Murthy via zshao)
  36. HIVE-507. Handle empty files properly.
      (Namit Jain via zshao)
  37. HIVE-497. Fix predicate pushdowns when all the columns are not selected in the query.
      (Prasad Chakka via athusoo)
  38. HIVE-500. Fix select from newly created table.
      (Yongqiang He via zshao)
  39. HIVE-451. Fix ORDER BY xxx DESC
      (He Yongqiang via namit)
  40. HIVE-467. Scratch data location should be on different filesystems for different types of intermediate data.
      (Joydeep Sen Sarma via rmurthy)
  41. HIVE-514. Partition key names should be case insensitive in alter table add partition statement.
      (Prasad Chakka via zshao)
  42. HIVE-523. Fix PartitionPruner not to fetch all partitions at once.
      (Prasad Chakka via zshao)
  43. HIVE-506. MoveTask should fail if target path cannot be deleted.
      (Yongqiang He via zshao)
  44. HIVE-520. Fix TestTCTLSeparatedProtocol.
      (Johan Oskarsson via zshao)
  45. HIVE-525. Fix Eclipse classpath by adding Hadoop test jar.
      (Prasad Chakka via johan)
  46. HIVE-495. Fix join of a table of ThriftSerDe with complex columns
      (Zheng Shao via namit)
  47. HIVE-532. Predicates not pushed above limit
      (Prasad Chakka via namit)
  48. HIVE-534. Fix in the cli so that it does not ignore the first newline character.
      (Raghotham Murthy via athusoo)
  49. HIVE-443. Remove deprecated functions from metastore.
      (Prasad Chaaka via athusoo)
  50. HIVE-479. Change RCFileOutputFormat's generic signatute.
      (Yongqiang He via zshao)
  51. HIVE-533. Predicates containing rand() not pushed above
      (Prasad Chakka via namit)
  52. HIVE-540. Restore test.silent setting
      (Zheng Shao via namit)
  53. HIVE-544. Fix predicate push for exprFieldNodeDesc.
      (Prasad Chakka via zshao)
  54. HIVE-547. Better logging in ExecDriver
      (Zheng Shao via namit)
  55. HIVE-561. Make hash aggregation threshold configurable
      (Zheng Shao via namit)
  56. HIVE-529. Some cleanup for join operator
      (Zheng Shao via namit)
  57. HIVE-573. Fix TestHiveServer.
      (Raghotham Murthy via zshao)
  58. HIVE-575. Fix Map join out-of-memory problem.
      (Namit Jain via zshao)
  59. HIVE-472. HiveFileFormatUtils's checkInputFormat does not include RCFile.
      (He Yongqiang via namit)
  60. HIVE-560. Column Pruning for mapjoins
      (He Yongqiang via namit)
  61. HIVE-583. Fix spurious 'default database not found'.
      (Prasad Chakka via zshao)
  62. HIVE-587. Duplicate results from multiple TIP
      (Zheng Shao via namit)
  63. HIVE-582. bug in column pruning
      (He Yongqiang via namit)
  64. HIVE-596. Fix PartitionPruner to work with GenericUDF.
      (Namit Jain via zshao)
  65. HIVE-590. Pass type information in genFileSinkPlan and improve getSchema call in Driver.
      (Namit Jain via rmurthy)
  66. HIVE-612. Problem in removing temp files in FileSinkOperator.jobClose
      (Zheng Shao via namit)
  67. HIVE-608. No type conversion in GenericUDF
      (Zheng Shao via namit)
  68. HIVE-616. Make hive work with symbolic linked sub directories
      (Zheng Shao via rmurthy)
  69. HIVE-527. Inserting into a partitioned table without specifying the partition field should fail.
      (He Yongqiang via namit)
  70. HIVE-473. Clean up after tests.
      (Johan Oskarsson via namit)
  71. HIVE-624. Bug in TypeConvertor
      (Zheng Shao via namit)
  72. HIVE-555. Support create temporary function for udaf and generic udf
      (Min Zhou via namit)
  73. HIVE-631. Fix TestParse.
      (Namit Jain via zshao)
  74. HIVE-626. Fix Column Pruner column order bug.
      (Yongqiang He via zshao)
  75. HIVE-623. optimize UDF reverse and UDF length
      (Emil Ibrishimov via namit)
  76. HIVE-632. Make conditional task serializable.
      (Namit Jain via zshao)
  77. HIVE-160. Bug in sampling for subqueries.
      (Raghu Murthy via namit)
  78. HIVE-636. Fix concatenation task with partitioned table.
      (Namit Jain via zshao)
  79. HIVE-641. fix test udf_reverse.q
      (Emil Ibrishimov via namit)
  80. HIVE-635. fix union accepting multiple objectinspectors
      (Zheng Shao via namit)
  81. HIVE-643. recognize escaped strings
      (Emil Ibrishimov via namit)
  82. HIVE-592. Renaming internal table should rename HDFS.
      (Prasad Chakka via zshao)
  83. HIVE-654. renaming thrift serde
      (Zheng Shao via namit)
  84. HIVE-666. Propagate errors in FetchTask to client.
      (Zheng Shao via rmurthy)
  85. HIVE-620. bug in displaying function name when more than 1 function points to the same class
      (Emil Ibrishimov via namit)
  86. HIVE-670. dump output column names in explain
      (Zheng Shao via namit)
  87. HIVE-673. Bug in handling of null partitions.
      (Namit Jain via zshao)
  88. HIVE-690. Fix script operator timeout bug
      (Zheng Shao via namit)
  89. HIVE-697. GroupByOperator's initialization calls GenericUDAF.newAggregation before GenericUDAF.init
      (Zheng Shao via namit)
  90. HIVE-700. Fix test error by adding "DROP FUNCTION".
      (Min Zhou and Namit Jain via zshao)
  91. HIVE-702. bug in drop temporary function
      (Min Zhou via namit)
  92. HIVE-710. Fix serialization bug in BinarySortableSerDe for negative double and float numbers
      (Zheng Shao via pchakka)
  93. HIVE-719. Lazy Array/Map index out of bound bug.
      (Zheng Shao via namit)
  94. HIVE-725. Add missing classpath: shims/src/common/java. Bug appeared after HIVE-487 was committed.
      (Zheng Shao via rmurthy)
  95. HIVE-711. test for negative double value.
      (Karan Mangla via namit)
  96. HIVE-344. Fixes for running Hive under cygwin.
      (Amr Awadallah via athusoo)
  97. HIVE-740. Fix HiveMetaStore get_fields.
      (Eric Hwang via zshao)
  98. HIVE-597. apache header for jdbc files.
      (Raghu Murthy via namit)
  99. HIVE-734. fix nulls insertion problem.
      (Ning Zhang via via namit)
  100. HIVE-772. Fix genConversionSelect for init serde with null.
       (Namit Jain via zshao)
  101. HIVE-769. Fix bug in partition pruning
       (Zheng Shao via namit)
  102. HIVE-769. Fix bug in partition pruning - bug in patch
       (Zheng Shao via namit)
  103. HIVE-774. Fix the behavior of "/" and add "DIV".
       (Ning Zhang via zshao)
  104. HIVE-776. Make "DIV" an infix operator.
       (Ning Zhang via zshao)
  105. HIVE-764. Fixed json.jar.
       (Raghu Murthy via zshao)
  106. HIVE-794. MergeTask should use COMPRESSRESULT.
       (Saurabh Nanda via zshao)

Release 0.3.1 - Unreleased

• INCOMPATIBLE CHANGES    (none)
• NEW FEATURES    (2)
  1. HIVE-61. Implement "ORDER BY".
     (Namit Jain via zshao)
  2. HIVE-376. In strict mode do not allow join without "ON" condition.
     (Namit Jain via zshao)
• IMPROVEMENTS    (1)
  1. HIVE-440. Reducer and Join to print out number of rows processed.
     (Namit Jain via zshao)
• OPTIMIZATIONS    (none)
• BUG FIXES    (4)
  1. HIVE-416. Fix backtrack in Hive.g.
     (Namit Jain via zshao)
  2. HIVE-442. Move the data before creating the partition.
     (Prasad Chakka via zshao)
  3. HIVE-447. Fix tests on hudson.
     (Ashish Thusoo via zshao)
  4. HIVE-469. Fix errors for cases where the partition or the table is empty.
     (Namit Jain via athusoo)

Older Releases

Release 0.3.0 - 2009-04-20

• INCOMPATIBLE CHANGES    (none)
• NEW FEATURES    (7)
  1. HIVE-337. LazySimpleSerDe to support multi-level nested array, map, struct types.
     (zshao)
  2. HIVE-313. Add UDF date_add, date_sub, datediff.
     (zshao)
  3. HIVE-79. Print number of rows inserted to table(s).
     (Suresh Antony via zshao)
  4. HIVE-30. Hive Web User Interface.
     (Edward Capriolo via athusoo)
  5. HIVE-343. Include py packages for thrift service.
     (Raghotham Murthy via zshao)
  6. HIVE-299. Include php packages for thrift service.
     (Raghotham Murthy via zshao)
  7. HIVE-82 Support for building tarballs and javadocs
     (Ashish Thusoo via rmurthy)
• IMPROVEMENTS    (1)
  1. HIVE-132. Show table and describe results to be read via FetchTask.
     (Raghotham Murthy via zshao)
• OPTIMIZATIONS    (none)
• BUG FIXES    (33)
  1. HIVE-349. Fix TestCliDriver when there are test cases with no tasks.
     (Suresh Antony via zshao)
  2. HIVE-339. Fix count distinct in 1 map-reduce job with map side aggregation.
     (Namit Jain via zshao)
  3. HIVE-271. Move test-udfs creation to build-common in order to fix broken 0.17 build.
     (athusoo)
  4. HIVE-286. Use round(xxx,12) to make sure there is no precision matching problem in testCliDriver_udf7.
     (zshao via johan)
  5. HIVE-327. Fix row counts printed in hive history to reflect the count of rows from the query in the session.
     (Suresh Anthony via athusoo)
  6. HIVE-334. Make union3 test output deterministic.
     (Joydeep Sen Sarma via athusoo)
  7. HIVE-320. Fix intermittent nullpointer exception in count(DISTINCT).
     (Namit Jain via athusoo)
  8. HIVE-124. Fix empty aggregations to return 1 row instead of nothing.
     (namit)
  9. HIVE-347. Fix lot of partition scans in strict mode in case of error in partition specification error.
     (namit)
  10. HIVE-251. Throw an error to the CLI if a user defined script fails in TRANSFORM, MAP or REDUCE commands.
      (athusoo)
  11. HIVE-317. Fix HiveServer to accept 1 argument for port.
      (Min Zhou via athusoo)
  12. HIVE-285. Fix to disallow union of different schemas.
      (Raghotham Murthy via namit)
  13. HIVE-253. Fix to disallow computation of rand() at compilation stage.
      (Raghotham Murthy via namit)
  14. HIVE-350. Fix wrong order of aggregations in explain plan.
      (namit)
  15. HIVE-347. undo for Fix lot of partition scans in strict mode in case of error in partition specification error.
      (namit)
  16. HIVE-319. Add UDF for unix timestamp.
      (Hao Liu via namit)
  17. HIVE-363. Use 1 reducer in case of aggregations with no grouping keys.
      (namit)
  18. HIVE-366. Make id a non-bean attribute so that TestParse does not depend on that.
      (namit)
  19. HIVE-342. Fix TestMTQueries
      (Prasad Chakka via namit)
  20. HIVE-318. Fix union all queries.
      (Namit Jain via zshao)
  21. HIVE-367. Null Pointer when some of the files in the table are empty.
      (Namit Jain via athusoo)
  22. HIVE-278. Add support for Hive History to Hive Web UI.
      (Edward Capriolo via athusoo)
  23. HIVE-356. Treat Object[] and List<Object> differently.
      (Zheng Shao via namit)
  24. HIVE-373. 1 reducer should be used if no grouping key is present in all scenarios.
      (Namit Jain via zshao)
  25. HIVE-375. LazySimpleSerDe directly creates a UTF8 buffer for primitive types.
      (Zheng Shao via namit)
  26. HIVE-382. Fix for hash aggr, remove elements from hash table in the loop during close, rather than waiting till the end.
      (Namit Jain via rmurthy)
  27. HIVE-391. Fix for UDAFCount which was not handling merging nulls
      (Namit Jain via rmurthy)
  28. HIVE-384. Fixing UNION ALL when the first job is a map-only job.
      (Namit Jain via zshao)
  29. HIVE-394. Break plans in Cluster Mode.
      (Namit Jain via zshao)
  30. HIVE-399. Fix timeout problems caused due to the bigdata test.
      (Namit Jain via athusoo)
  31. HIVE-397. Make union tests deterministic by ordering the output results.
      (Namit Jain via athusoo)
  32. HIVE-400. Fix bug in genColList.
      (Namit Jain via zshao)
  33. HIVE-390. Make partition pruner tests deterministic by ordering the output results.
      (Namit Jain via athusoo)

Release 0.2.0 - Unreleased

• INCOMPATIBLE CHANGES    (1)
  1. HIVE-194. Support specifying decimal places for ROUND function. ROUND always rounds away from zero now.
     (David Phillips via zshao)
• NEW FEATURES    (19)
  1. HIVE-223. Single map-reduce group-by using map-side aggregation.
     (Namit Jain via zshao)
  2. HIVE-269. Add log/exp/pow UDF functions to Hive.
     (zshao)
  3. HIVE-258. New UDF IF(test, valueTrue, valueFalseOrNull).
     (zshao)
  4. HIVE-105. Automatically estimate number of required reducers.
     (zshao)
  5. HIVE-176. Added a history log for Hive.
     (Suresh Anthony via athusoo)
  6. HIVE-244. Add SQRT() UDF.
     (Jeff Hammerbacher via zshao)
  7. HIVE-216. Generate ruby bindings for service.
     (Raghotham Murthy via zshao)
  8. HIVE-163. JSON udf function added.
     (Hao Liu via zshao)
  9. HIVE-142. Add a metastore check command.
     (Johan Oskarsson via zshao)
  10. HIVE-91. Add ADD PARTITION support to ALTER TABLE in order to add partitions to a table.
      (Johan Oskarsson via athusoo)
  11. HIVE-148. Extend bin/hive to include the lineage tool.
      (Suresh Antony via zshao)
  12. HIVE-147. Add a tool for extracting lineage info from hive sql.
      (Suresh Antony via zshao)
  13. HIVE-48. Support JDBC connections for interoperability between Hive and RDBMS.
      (Raghotham Murthy and Michi Mutsuzaki via dhruba)
  14. HIVE-140. Event Based Infrastructure for Syntax Trees in the compiler.
      (Ashish Thusoo through zshao)
  15. HIVE-98. Dependency management with hadoop core using ivy.
      (Ashish Thusoo through zshao)
  16. HIVE-73. Thrift Server and Client for Hive
      (Raghotham Murthy through zshao)
  17. HIVE-113. Distribute by and sort by support.
      (zshao)
  18. HIVE-118. Add date related functions.
      (zshao)
  19. HIVE-62. Support nested types.
      (Ashish Thusoo via dhruba)
• IMPROVEMENTS    (25)
  1. HIVE-300. DISTRIBUTE BY now supports expressions.
     (zshao)
  2. HIVE-292. Replace MetadataTypedColumnsetSerde with LazySimpleSerDe.
     (zshao)
  3. HIVE-294. Support MAP(a.*), REDUCE(a.*) and TRANSFORM(a.*).
     (zshao)
  4. HIVE-270. Add a lazy-deserialized SerDe for efficient deserialization of rows with primitive types.
     (zshao)
  5. HIVE-288. Removed the old serde package.
     (zshao)
  6. HIVE-240. Support CREATE TABLE IF NOT EXISTS.
     (zshao)
  7. HIVE-126. Don't fetch information on Partitions from HDFS instead of MetaStore.
     (Johan Oskarsson via zshao)
  8. HIVE-209. Enabling asserts in tests.
     (Prasad Chakka via zshao)
  9. HIVE-177. Allow specifying custom input and output format in CREATE TABLE.
     (David Phillips via zshao)
  10. HIVE-166. Create eclipse project template.
      (Ashish Thusoo via zshao)
  11. HIVE-186. Refactor code to use a single graph, nodeprocessor, dispatcher and rule abstraction.
      (Ashish Thusoo via zshao)
  12. HIVE-182. Add database name parameter to getTable and dropTable.
      (Johan Oskarsson via zshao)
  13. HIVE-181. Restore UDFTestLength unit test for UDFs.
      (David Phillips via zshao)
  14. HIVE-107. Case structure for bin/hive.
      (Edward Capriolo via zshao)
  15. HIVE-101. Set svn:ignore for the root.
      (Johan Oskarsson via zshao)
  16. HIVE-170. Map-side aggregations to estimate memory size.
      (Namit via zshao)
  17. HIVE-180. Data Generator for thrift-serialized sequence files.
      (zshao)
  18. HIVE-157. Update README.txt to remove refs to mirror.facebook.com.
      (zshao)
  19. HIVE-95. Improve cli error messages by lowering backtracking to 1.
      (Pete Wyckoff through zshao)
  20. HIVE-102. Refactor DDLTask.
      (Johan Oskarsson through zshao)
  21. HIVE-85. New compression options for Hive.
      (Joydeep Sarma through zshao)
  22. HIVE-69. genMapRedTasks uses tree walker.
      (Namit through zshao)
  23. HIVE-249. Give execute permissions to the hive binary
      (Jeff Hammerbacher via athusoo)
  24. HIVE-231. Create junit reports for tests.
      (Johan Oskarsson via athusoo)
  25. HIVE-119. Make error messages more informative.
      (Pete Wyckoff via athusoo)
• OPTIMIZATIONS    (none)
• BUG FIXES    (68)
  1. HIVE-340. Fixed null pointer exception with nulls in map-side aggregation.
     (Namit Jain via zshao)
  2. HIVE-308. UNION ALL: FileSinkOperator now adds files in case the target exists.
     (zshao)
  3. HIVE-276. Fix input3_limit.q for hadoop 0.17.
     (zshao)
  4. HIVE-131. Remove uncommitted files from failed tasks.
     (Joydeep Sen Sarma via zshao)
  5. HIVE-264. TBinarySortable Protocol supports null characters.
     (zshao)
  6. HIVE-255. Propagate user name to Hive metastore.
     (Prasad Chakka via zshao)
  7. HIVE-263. TCTLSeparatedProtocol should use UTF-8 to encode/decode the data.
     (zshao)
  8. HIVE-255. Propagate user name to Hive metastore.
     (Prasad Chakka via zshao)
  9. HIVE-235. Fixed DynamicSerDe to work with null values with Thrift Protocols that can have missing fields for null values.
     (zshao)
  10. HIVE-222. Fixed Group by on a combination of disitinct and non distinct aggregates.
      (Ashish Thusoo via zshao)
  11. HIVE-161. Fixed xpath x.y when x is a null list.
      (zshao)
  12. HIVE-206. Fixed partition pruning check for uppercase table names.
      (Ashish Thusoo via zshao)
  13. HIVE-151. Tasks depending on other tasks cannot be a root task.
      (Namit Jain via zshao)
  14. HIVE-197. Fixed UDFToBoolean.
      (zshao)
  15. HIVE-171. Fixed select star with cluster by, distribute by and sort by.
      (zshao)
  16. HIVE-190. Fixed tests failed due to test running order.
      (zshao)
  17. HIVE-184. Tests fail due to including old hive jar files.
      (David Phillips via zshao)
  18. HIVE-188. Hive CLI quits when stdout is closed.
      (zshao)
  19. HIVE-104. Tables with at least 1 non-string columns to use DynamicSerDe.
      (zshao)
  20. HIVE-158. Make table aliases work for sampled tables in joins.
      (Raghotham Murthy via zshao)
  21. HIVE-168. Fixed join on a subquery with a group by.
      (Namit Jain via zshao)
  22. HIVE-169. Fixed configuration parameter used for determining join interval in JoinOperator.
      (Namit Jain via zshao)
  23. HIVE-114. Drop partition does not delete data for external tables now.
      (Johan Oskarsson via zshao)
  24. HIVE-144. Hive/ql java source copied to build/ql/java to make it work with eclipse.
      (Johan Oskarsson via zshao)
  25. HIVE-129. Fix aux.jar packaging to work properly with 0.17 and 0.18 versions of hadoop.
      (Joydeep Sarma via zshao)
  26. HIVE-162. Fix join0.q test failure with hadoop 0.17.
      (zshao)
  27. HIVE-146. Fix builds for non-default build directory.
      (David Phillips through zshao)
  28. HIVE-47. CLI to support multiline queries from an input file.
      (Ashish through zshao)
  29. HIVE-103. Disable inserts in sub queries.
      (Namit Jain through zshao)
  30. HIVE-92. Fixed union all for non-embedded query.
      (Namit Jain through zshao)
  31. HIVE-93. Dynamic serde to handle _-prefixed column names in DDL.
      (Pete Wyckoff through zshao)
  32. HIVE-127. Fetch Task to pass the jobconf to SerDe.
      (Namit through zshao)
  33. HIVE-116. Let test depend on deploy.
      (Johan Oskarsson through zshao)
  34. HIVE-90. Fixed TestGetDBs for File.list() order.
      (Johan Oskarsson through zshao)
  35. HIVE-111. Support join without a ON clause.
      (Namit through zshao)
  36. HIVE-77. Thread safe query execution.
      (Joydeep through zshao)
  37. HIVE-86. Drop table should not delete data for external tables.
      (Johan Oskarsson through zshao)
  38. HIVE-108. Sampling to use internal column name.
      (Namit through zshao)
  39. HIVE-60. Fix the build scripts for the new hive tree.
      (Ashish through zshao)
  40. HIVE-54. Create this file to record the patches going into a particular release.
      (dhruba)
  41. HIVE-12. Improve README for Hive.
      (Ashish Thusoo via dhruba)
  42. HIVE-68. Fix casting to short.
      (Ashish Thusoo via dhruba)
  43. HIVE-70. A configuration variable that limits the amount of data writen by a task to its standard error.
      (Joydeep Sen Sarma via dhruba)
  44. HIVE-17. Remove duplicate entries for hive.metastore.uris in config file.
      (Jeff Hammerbacher via dhruba)
  45. HIVE-72. Generate correct results when partition pruning is not strict and no map-reduce jobs are needed.
      (Namim Jain via dhruba)
  46. HIVE-75. Make limit work when applied to outermost block that is not a query.
      (Namim Jain via dhruba)
  47. HIVE-76. Fix for column number mismatch between query and destination tables when alias.* expressions are present in the select list of a join.
      (Ashish Thusoo via dhruba)
  48. HIVE-196. Two test runs can run simultaneously on the same machine.
      (Ashish Thusoo via dhruba)
  49. HIVE-202. Fix Lineage for join queries.
      (Suresh Antony via dhruba)
  50. HIVE-84. Make MetaStore Client thread safe.
      (Prasad Chakka via dhruba)
  51. HIVE-203. Fix eclipse templates to get junit tests to run.
      (Raghotham Murthy via dhruba)
  52. HIVE-220. Incorrect log directory in TestMTQueries causing null pointer exception.
      (Prasad Chakka via dhruba)
  53. HIVE-230. Fix for a Null Pointer Exception that occured while loading a table from a query that returns empty data.
      (Prasad Chakka via dhruba)
  54. HIVE-232. Metastore.warehouse configuration should use inherited hadoop configuration.
      (Prasad Chakka via dhruba)
  55. HIVE-239. Check that replace columns in alter table does not have names that are same as the partitioning columns.
      (Prasad Chakka via athusoo)
  56. HIVE-25. Enable Table aliases in cluster by, distribute by and sort by clauses.
      (Prasad Chakka via athusoo)
  57. HIVE-217. Report progress during FileSinkOperator in order to avoid Stream closes exceptions.
      (Johan Oskarsson via athusoo)
  58. HIVE-242. Fix to allow CLI to interpret line breaks in any CLI command.
      (Prasad Chakka via athusoo)
  59. HIVE-65. Rewrite typechecking to use the walker interface and add Resolvers to UDF and UDAF to support proper implicit casting in a manner similar to other RDBMSs.
      (athusoo)
  60. HIVE-246. Fix to make msck command to look for tables in hdfs that are in the metastore.
      (Johan Oskarsson via athusoo)
  61. HIVE-248. Create file path names properly during the load command in case relative path names were specified.
      (Prasad Chakka via athusoo)
  62. HIVE-179. Make substr behavior similar to other RDBMS.
      (David Phillips via athusoo)
  63. HIVE-257. Set hive history log location to build for tests.
      (Suresh Anthony via athusoo)
  64. HIVE-256. Fix in map side aggregation wherein we were not including private members of the records in calculating the avg size of the rows and we were also not estimating variable length columns properly.
      (Namit Jain via athusoo)
  65. HIVE-262. Fix for joins wherein a merged join having and outer or right outer join gave spurious rows in join.
      (Namit Jain via athusoo)
  66. HIVE-189. Make sampling tests deterministic by sorting output.
      (athusoo)
  67. HIVE-273. Fix avg UDAF which got broken hive 65.
      (athusoo)
  68. HIVE-283. Do case insensitive comparison of aliases in partition pruning.
      (athusoo)