| Tajo Change Log |
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| Release 0.2.0 - unreleased |
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| NEW FEATURES |
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| TAJO-273: NotEval incurs NPE with boolean column. (hyunsik) |
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| TAJO-267: Implement equals() and deepEquals() functions at LogicalNode. |
| (jihoon) |
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| TAJO-260: Add between predicate. (hyunsik) |
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| TAJO-208: Implement char_length(string) function. (hyunsik) |
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| TAJO-99: Design the interface of join enumeration algorithm. (hyunsik) |
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| TAJO-179: Support MySQL CatalogStore. (jinho) |
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| TAJO-147: Implement trim(text), ltrim(text), and rtrim(text) function. |
| (hyunsik) |
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| TAJO-148: Implement UPPER(text), LOWER(text) function. (hyunsik) |
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| TAJO-220: Implement catalog dump feature. (hyunsik) |
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| TAJO-216: Improve FilterPushDownRule and Implement physical operators |
| for outer join. (camelia_c via hyunsik) |
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| TAJO-211: Implement regexp_replace function. (hyunsik) |
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| TAJO-212: Implement type cast expresion. (hyunsik) |
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| TAJO-206: Implement String concatenation operator (||). (hyunsik) |
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| TAJO-213: NULL characters in meta of csv table should be supported. |
| (jinho) |
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| TAJO-185: Implement split_part function. (hyunsik) |
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| TAJO-193: Add string pattern matching operators. (hyunsik) |
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| TAJO-101: HiveQL converter. (jaehwa) |
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| TAJO-144: Implement INSERT OVERWRITE clause. (hyunsik) |
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| TAJO-139: TAJO-139: In predicate support. (hyunsik) |
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| TAJO-134: Support for compression/decompression of CSVFile. (jinho) |
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| TAJO-59: Implement Char Datum Type. (jihoon) |
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| TAJO-96: Design and implement rewrite rule interface and the rewrite rule |
| engine. (hyunsik) |
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| TAJO-19: CREATE TABLE without external data should be supported. (jinho) |
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| TAJO-57: Recognize Parser and Catalog Standard SQL data types. (hyunsik) |
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| TAJO-33: Implement a basic query progress indicator. (hyunsik) |
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| IMPROVEMENTS |
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| TAJO-270: Boolean datum compatible to apache hive. (jinho) |
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| TAJO-261: Rearrange default port numbers and config names. (hyunsik) |
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| TAJO-236: Implement LogicalPlanVerifier to check if a logical plan is |
| valid. (hyunsik) |
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| TAJO-254: Refactor package names and class names to have proper names. |
| (add a missed changelog) |
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| TAJO-255: Cleanup exceptions of engine. (hyunsik) |
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| TAJO-253: Clean up tajo-default.xml in test resource. (hyunsik) |
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| TAJO-239: Improving web UI. (Keuntae Park via hyunsik) |
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| TAJO-232: Rename join operators and add other join operators to |
| PhysicalPlanner. (hyunsik) |
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| TAJO-229: Implement JoinGraph to represent a graph of relation joins. |
| (hyunsik) |
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| TAJO-223: Maximize disk read bandwidth utilization of StorageManagerV2 by |
| moving Tuple creation role to next(). (Keuntae Park via hyunsik) |
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| TAJO-199: All relations in catalog must have data volume size. (hyunsik) |
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| TAJO-224: Rearrange DataType enumeration and Refactor type systems. |
| (hyunsik) |
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| TAJO-214: System should inquire finished query history after execution |
| in web. (SeongHwa Ahn via hyunsik) |
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| TAJO-145: count(distinct column) should be supported. (hyunsik) |
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| TAJO-197: Implement Enforcer that forces physical planner to choose |
| specified algorithms. (hyunsik) |
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| TAJO-194: LogicalNode should have an identifier to distinguish each |
| logical node instance. (hyunsik) |
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| TAJO-183: Creating too many TableMetaProto objects might lead a potential |
| memory leak. (jihoon) |
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| TAJO-184: Refactor GlobalPlanner and global plan data structure. (hyunsik) |
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| TAJO-119: Refactor and Improve Datum. (jinho) |
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| TAJO-178: Implements StorageManager for scanning asynchronously. |
| (hyoungjunkim via hyunsik) |
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| TAJO-167: Implement GeneralSetFunctionExpr to represent all SQL standard |
| set functions. (hyunsik) |
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| TAJO-149: Eliminate QueryConf and its file write. (hyunsik) |
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| TAJO-143: Implement hash semi-join operator. (hyunsik) |
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| TAJO-142: Implement hash anti-join operator. (hyunsik) |
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| TAJO-94: Remove duplicate proto files. (hyunsik) |
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| TAJO-141: Set on demand as the default cluster mode. (hyunsik) |
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| TAJO-136: Broadcast join should be enabled. (hyunsik) |
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| TAJO-127: Implement Tajo Resource Manager. (hyoungjunkim via hyunsik) |
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| TAJO-84: Task scheduling with considering disk load balance. (jinho) |
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| TAJO-123: Clean up the logical plan's json format. (hyunsik) |
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| TAJO-129: Enable the constructor of NettyServerBase to take a service |
| name. (hyunsik) |
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| TAJO-91: Launch QueryMaster on NodeManager per query. |
| (hyoungjunkim via hyunsik) |
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| TAJO-100: Port the parse error handling to the new parser. (jinho) |
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| TAJO-121: Add LogicalPlanVisitor and Refactor LogicalOptimizer to use the |
| visitor. (hyunsik) |
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| TAJO-118: Refactor and Improve text file Scanner. (jinho) |
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| TAJO-95: Eliminate the lazy copy approach from the classes wrapping |
| protobuf-generated classes. (hyunsik) |
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| TAJO-102: Add AlgebraVisitor and Refactor LogicalPlanner to use the visitor. |
| (hyunsik) |
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| TAJO-87: Integration of tajo algebra module and SQL parser. (hyunsik) |
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| TAJO-70: Refactor GlobalEngine to handle DDL statements. (hyunsik) |
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| TAJO-86: Improved error messages in query analyzer. (jinho) |
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| TAJO-85: Add an method of create(DataType, byte[]) to DatumFactory. (jihoon) |
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| TAJO-79: Refactor and Improve TajoCli. (hyunsik) |
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| TAJO-77: Rename TabletProto as FragmentProto in CatalogProtos.proto. |
| (jihoon) |
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| TAJO-22: The package prefix should be org.apache.tajo. (DaeMyung Kang via |
| hyunsik) |
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| TAJO-75: Separate SQL.g into SQLParser.g and SQLLexer.g. (hyunsik) |
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| TAJO-74: Refactor parser rules of SQL.g. (hyunsik) |
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| TAJO-7: Enabling TajoCli to take multiple lines as one statement. (jinho) |
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| TAJO-72: Rename NQL.g to SQL.g. (hyunsik) |
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| TAJO-71: Case-insensitive parser. (hyunsik) |
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| TAJO-40: Adopt YarnClient to GlobalEngine. (jihoon) |
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| TAJO-69: Add .reviewboardrc file to the ignore lists of Rat and .gitignore. |
| (hyunsik) |
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| TAJO-66: Support compiling and running Tajo with Java7 (Tejas Patil via |
| hsaputra) |
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| TAJO-51: Parallel Container Launch of TaskRunnerLauncherImpl. (hyunsik) |
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| TAJO-39 Remove the unused package tajo.engine.plan.global and all files |
| inside the directory. (hsaputra) |
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| TAJO-37: Remove obsolete classes WorkerEventDispatcher, WorkerEvent and |
| WorkerEventType. (sunny.1324 via hyunsik) |
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| TAJO-50: Cleanup SubQuery. (hyunsik) |
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| TAJO-44: Adopt AMRMClient to RMContainerAllocator, RMCommunicator. (hyunsik) |
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| TAJO-42: Divide SubQuery into FSM and execution block parts. (hyunsik) |
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| TAJO-32: Cleanup TaskRunner. (hyunsik) |
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| TAJO-27: Modify the document links to point the wiki's ones. (hyunsik) |
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| TAJO-17: Improve the examples for jvm version and auxiliary service in |
| getting_started.apt. (hyunsik) |
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| TAJO-10: Modify git ignore to include Apache derby log file. (hsaputra) |
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| TAJO-12: Add information in README on how to subscribe to mailing |
| lists (mattmann, hyunsik) |
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| TAJO-11: Update file README to reflect Apache incubation. (hyunsik) |
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| TAJO-4: Update the project site. (hyunsik) |
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| TAJO-2: remove all @author tags and update license header. (hyunsik) |
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| BUG FIXES |
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| TAJO-281: 'mvn package -Pdist' generates duplicate Tajo jar files. |
| (hyunsik) |
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| TAJO-277: Infinite loop occurs when a table is empty. (jinho) |
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| TAJO-273: NotEval incurs NPE with boolean column. (hyunsik) |
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| TAJO-272: boolean test does not work correctly. (hyunsik) |
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| TAJO-264: Remove hard-coded 'standby' mode. (jinho) |
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| TAJO-262: Integration test hang on jenkins. (jinho) |
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| TAJO-257: Unit tests occassionally fail. (hyunsik) |
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| TAJO-169: the default TAJO_WORKER_STANDBY_MODE in tajo-env.sh is wrong. |
| (hyunsik) |
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| TAJO-231: In StorageManger v2, TestCSVCompression incurs unexpected end of |
| stream occasionally. (hyunsik) |
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| TAJO-250: QueryMaster must send the query finish heartbeat. (hyunsik) |
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| TAJO-245: org.apache.tajo.algebra.FunctionExpr cannot be cast to |
| org.apache.tajo.algebra.ColumnReferenceExpr. (hyunsik) |
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| TAJO-243: The 'tajo_dump' does not include options of table. (jinho) |
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| TAJO-244: assignToNonLeafTasks causes NPE occurs occasionally. (hyunsik) |
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| TAJO-242: Enable omitted broadcast join feature after TAJO-184. (hyunsik) |
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| TAJO-240: Reformat HiveConverter source code to match adopted conventions |
| (jaehwa) |
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| TAJO-241: Does not reconnect the meta store. (jinho) |
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| TAJO-226: Can't use group by column alias. (hyunsik) |
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| TAJO-203: Field delimiter does not work correctly. (jinho) |
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| TAJO-205: Repartitioner occasionally chooses a partition number as one. |
| (hyunsik) |
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| TAJO-191: INSERT OVERWRITE INTO statement should follow the table meta in |
| catalog. (jinho) |
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| TAJO-198: The split function does not work properly. (jinho) |
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| TAJO-187: The exception 'Some targets cannot be evaluated' is caused in |
| nested joins. (hyunsik) |
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| TAJO-46: The "having" clause does not work properly. (hyunsik) |
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| TAJO-186: Improve column resolving method. (hyunsik) |
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| TAJO-168: infinite loop occurs when QueryMaster is stopping. (jinho) |
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| TAJO-180: Better error messages for |
| StorageManager.listStatus$InvalidInputException. (hyunsik) |
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| TAJO-177: Call by reference bug in MergeJoinExec. (jihoon) |
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| TAJO-171: BitArray always returned false. (jinho) |
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| TAJO-172: TajoWorker allocate wrong container slots.(jinho) |
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| TAJO-174: SQL error handler sometimes occurred NPE. (jinho) |
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| TAJO-170: mvn compile error when building tar file. (jaehwa) |
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| TAJO-154: Query calculates wrong progress in multiple step queries. |
| (hyunsik) |
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| TAJO-152: The tajo local directory path is mismatched in PullServer. |
| (jihoon) |
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| TAJO-80: Remove codes of legacy data paths. (jihoon) |
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| TAJO-159: QueryMaster cannot connect the remote CatalogServer. (hyunsik) |
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| TAJO-158: Can't allocate worker when single SubQuery requests more than |
| cluster capacity. (hyoungjunkim via hyunsik) |
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| TAJO-157: The CSVScanner.isSplittable() function does not work properly. |
| (jinho) |
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| TAJO-156: BufferUnderflowException occurs during processing the |
| intermediate file. (jinho) |
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| TAJO-151: Multiple union queries within a table subquery causes NPE. |
| (hyunsik) |
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| TAJO-137: Unreleased resources and wrong allocation requests in |
| TajoWorkerResourceManager. (hyoungjunkim via hyunsik) |
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| TAJO-130: Same queryConf file conflicts. (jinho) |
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| TAJO-82: NullPointerException occurs when Schema is converted as an array |
| of columns. (jihoon) |
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| TAJO-65: Invalid pom.xml configurations for source directories. |
| (Takuya Ueshin via hyunsik) |
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| TAJO-48: BufferUnderflowException occurs during the initialization of |
| RowFile. (jihoon) |
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| TAJO-58: Remove obsolete methods in GlobalPlanner. (hyunsik) |
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| TAJO-54: SubQuery::allocateContainers() may ask 0 containers. (hyunsik) |
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| TAJO-41: Storage handler name row in storage-default.xml must be rowfile. |
| (hsaputra) |
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| TAJO-47: RowFile has the duplicated initialization problem and unflipped |
| ByteBuffer problem. (jihoon) |
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| TAJO-38: Update class comment in TaskAttemptContext from Korean to English |
| (hsaputra) |
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| TAJO-15: The Integration test is getting hanged on Mac OS X. (hyunsik) |
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| TAJO-8: MapReduce's ShuffleHandler and Tajo's PullServerAuxService conflict |
| each other. (jhkim) |
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| TAJO-13: Update the groupId property in the pom.xml to use ASF org instead |
| of kr.ac.korea.dbserver (hsaputra) |
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| TAJO-1: RCFileWrapper always reads whole columns regardless of the target |
| schema. (jihoonson via hyunsik) |
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| TAJO-6: Rename tajo.engine.function.builtin.NewSumInt to SumInt. (rsumbaly) |
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| TAJO-21: CREATE EXTERNAL TABLE should support a file path. (JaeHwa Jung) |
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| TASKS |
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| TAJO-288: Correct NOTICE file and LICENSE.txt. (hyunsik) |
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| TAJO-271: Add MIT license to NOTICE.txt and LICENSE.txt for jquery and |
| jsPlumb. (hyunsik) |
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| TAJO-265: Update installation guide and other documentation for 0.2 |
| release. (hyunsik) |
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| TAJO-252: Add DISCLAIMER file. (hyunsik) |
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| TAJO-251: Rename the legacy name *.tql to *.sql. (hyunsik) |