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Changelog

0.4.4 - 2022-04-01

Features

  • Support the standalone version by Java and Python SDKs (#1302 #1325 #1485 @tobegit3hub @HuilinWu2 @keyu813)
  • Support the blocking execution for offline queries (#1486 @vagetablechicken )
  • Add the getStatement API in Java SDK (#1231 @dl239 )
  • Support multiple rows insertion in the Python SDK (#1402 @hezhaozhao-git )
  • Support the JDBC connection (#1511 @vagetablechicken )

Bug Fixes

  • The error message is empty when executing show deployment in CLI fails. (#1415 @dl239 )
  • The show job and show jobs cannot display correct information. (#1440 @vagetablechicken )
  • The built-in function execution on a string filed with the length of greater than 2048 characters causes OpenMLDB crash. (#1540 @dl239 )
  • The simple expression inference fails in some cases (#1443 @jingchen2222 )
  • The PreparedStatement in Java SDK does not perform as expected. (#1511 @vagetablechicken )

Code Refactoring

#1467 @aimanfatima ; #1513 @L-Y-L ; #1503 @Stevinson ;

0.4.3 - 2022-03-15

Features

  • Add the output of the number of rows imported after successfully importing data (#1401 @Manny-op)
  • Code Refactoring (#1366 @Cupid0320; #1378 @wuteek; #1418 @prashantpaidi; #1420 @shiyoubun; #1422 @vagetablechicken)

Bug Fixes

  • Loading online data with "not null" columns in Spark fails. (#1341 @vagetablechicken)
  • max_where and min_where results are incorrect if there is no rows matched. (#1403 @aceforeverd)
  • The insert and select execution of the standalone version fails. (#1426 @dl239)
  • Other minor bug fixes (#1379 @wuteek; #1384 jasleon)

0.4.2 - 2022-03-01

Features

  • Support timestamps in long int when importing a csv file (#1237 @vagetablechicken)
  • Change the default execution mode in CLI from online to offline (#1332 @dl239)
  • Enhancements for the Python SDK:
    • Support fetchmany and fetchall in Python SDK (#1215 @HuilinWu2)
    • Support fetching logs of TaskManager jobs in Python SDK and APIs (#1214 @tobegit3hub)
    • Support fetching the schema of result sets in Python SDK (#1194 @tobegit3hub)
    • Support the SQL magic function in Jupyter Notebook when using the Python SDK. (#1164 @HuilinWu2)
  • Enhancements for the TaskManager:
    • Taskmanager can find the local batchjob jar if the path is not configured. (#1250 @tobegit3hub)
    • Support the Yarn-client mode in TaskManager (#1265 @tobegit3hub)
    • Support correctness checking for TaskManager's configuration (#1262 @tobegit3hub)
    • Support reordering for the task list (#1256 @tobegit3hub)
  • Add new UDF functions of lower and lcase (#1192 @Liu-2001)
  • Offline queries that do not execute on tables will run successfully even when the connection fails. (#1264 @tobegit3hub)

Bug Fixes

  • Offline data import fails when the timestamp value is null. (#1274 @tobegit3hub)
  • Start time of TaskManager jobs in CLI is null. (#1272 @tobegit3hub)
  • LAST JOIN may fail in the cluster version under certain circumstances. (#1226 @dl239)
  • Invalid SQL may run successfully. (#1208 @aceforeverd)

0.4.1 - 2022-02-09

Features

  • Improve CLI error messages and support the 'enable_trace' system variable (#1129 @jingchen2222)

Bug Fixes

  • CLI coredumps when it fails to connect to a nameserver. (#1166 @keyu813)
  • Java SDK has the issue of memory leaks. (#1148 @dl239)
  • The startup fails if a pid file exists. (#1108 @dl239)
  • There are incorrect values for the column with the date type when loading data into an online table. (#1103 @yabg-shuai666)
  • Offline data import for the CSV format may cause incorrect results. (#1100 @yabg-shuai666)
  • 'Offline path' cannot be displayed after importing offline data. (#1172 @vagetablechicken)

0.4.0 - 2022-01-14

Highlights

  • The SQL-centric feature is enhanced for both standalone and cluster versions. Now you can enjoy the SQL-centric development and deployment experience seamlessly. (#991,#1034,#1071,#1064,#1061,#1049,#1045,#1038,#1034,#1029,#997,#996,#968,#946,#840,#830,#814,#776,#774,#764,#747,#740,#466,#481,#1033,#1027,#966,#951,#950,#932,#853,#835,#804,#800,#596,#595,#568,#873,#1025,#1021,#1019,#994,#991,#987,#912,#896,#894,#893,#873,#778,#777,#745,#737,#701,#570,#559,#558,#553 @tobegit3hub; #1030,#965,#933,#920,#829,#783,#754,#1005,#998 @vagetablechicken)
  • The Chinese documentations are thoroughly polished and accessible at https://docs.openmldb.ai/ . This documentation repository is available at https://github.com/4paradigm/openmldb-docs-zh , and you are welcome to make contributions.
  • Experimental feature: We have introduced a monitoring module based on Prometheus + Grafana for online feature processing. (#1048 @aceforeverd)

Other Features

  • Support SQL syntax: LIKE, HAVING (#841 @aceforeverd; #927,#698 @jingchen2222)
  • Support new built-in functions: reverse (#1004 @nautaa), dayofyear (#856 @Nicholas-SR)
  • Improve the compilation and install process, and support building from sources (#999,#871,#594,#752,#793,#805,#875,#871,#999 @aceforeverd; #992 @vagetablechicken)
  • Improve the GitHub CI/CD workflow (#842,#884,#875,#919,#1056,#874 @aceforeverd)
  • Support system databases and tables (#773 @dl239)
  • Improve the function create index (#828 @dl239)
  • Improve the demo image (#1023,#690,#734,#751 @zhanghaohit)
  • Improve the Python SDK (#913,#906 @tobegit3hub;#949,#909 @HuilinWu2; #838 @dl239)
  • Simplify the concepts of execution modes (#877,#985,#892 @jingchen2222)
  • Add data import and export for the cluster version (#1078 @tobegit3hub)
  • Add new deployment command for the cluster version (#921 @dl239)
  • Support default values when creating a table (#563 @zoyopei)
  • Support string delimiters and quotes (#668 @ZackeryWang)
  • Add a new lru_cache to support upsert (#795 @vagetablechicken)
  • Support adding index with any ts_col (#828 @dl239)
  • Improve the ts packing in sql_insert_now (#944 ,#974 @keyu813)
  • Improve documentations (#952 #885 @mahengyang; #834 @Nicholas-SR; #792,#1058,#1002,#872,#836,#792 @lumianph; #844,#782 @jingchen2222; #1022,#805 @aceforeverd)
  • Other minor updates (#1073 @dl239)

Bug Fixes

#847, #831, #647, #934, #953, #1015, #982, #927, #994, #1008, #1028, #1019, #779, #855, #350, #631, #1074, #1073, #1081

@nautaa, @Nicholas-SR, @aceforeverd, @dl239, @jingchen2222, @tobegit3hub, @keyu813

0.3.0 - 2021-11-05

Highlights

We introduce a new standalone mode that can be deployed on a single node, which is suitable for small businesses and the demonstration purpose. Please read more details from here. The standalone mode is particularly enhanced for ease of use based on the following features that are supported by standalone mode only.

Other Features

  • A new CLI command to support different levels of performance sensitivity: SET performance_sensitive=true|false. When it is set to false, SQL queries can be executed without indexes. Please read here for more details about the performance sensitivity configuration 4paradigm#555
  • Supporting SQL queries over multiple databases 4paradigm#476
  • Supporting inserting multiple tuples into a table using a single SQL 4paradigm#398
  • Improvements for Java SDK: The new API getTableSchema 4paradigm#483 The new API genDDL, which is used to generate DDLs according to a given SQL script 4paradigm#588

Bugfix

  • Exceptions caused by certain physical plans with special structures when performing column resolve for logical plans. 4paradigm#437
  • Under specific circumstances, unexpected outcomes produced by SQL queries with the WHERE when certain WHERE conditions do not fit into indexes 4paradigm#599
  • The bug when enabling WindowParallelOpt and WindowSkewOptimization at the same times 4paradigm#444
  • The bug of LCA (Lowest Common Ancestor) algorithm to support WindowParallelOpt for particular SQLs 4paradigm#485
  • Workaround for the Spark bug (SPARK-36932) when the columns with the same names in LastJoin 4paradigm#484

Acknowledgement

We appreciate the contribution to this release from external contributors who are not from 4Paradigm's core OpenMLDB team, including Kanekanekane, shawn-happy, lotabout, Shouren, zoyopei, huqianshan

0.2.3 - 2021-08-31

Feature

  • Data importer support bulk load #250
  • Support parameterized query under BatchMode #262, #168
  • Support Hive metastore and Iceberg tables for offline #245, #146
  • Integrated with Trino #254
  • Support global SortBy node for offline #296

Bug Fix

  • Fix end2end offline tests for the same SQL #300
  • desc do not display the value of ttl after adding index#156

SQL Syntax

  • nvl & nvl2: #238
  • bitwise operators: &, |, ^, ~ #244
  • between predicate: #277

0.2.2 - 2021-08-08

Feature

  • Add VARCHAR Type #237

Bug Fix

  • Fix invalid back qoute identifier name #263 can't write as multiple path style (e.g a.b) now
  • InsertPreparedStatement set month by mistake when use Date type #200

Note:

OPTIONS can't write as multiple path style (e.g a.b) now

0.2.0 - 2021-07-22

Features

  • Refactor front-end using zetasql. Thus OpenMLDB can support more SQL syntaxs and provide friendly syntax error message.
  • Better code style and comment
  • Add APIServer module. User can use Rest API access OpenMLDB.#48

SQL Syntax

Changed

  • table options syntax: #103
  • lead method: #136

Removed

  • || and && as logical operator: #264
  • at function: #265

Note

  • openmldb-0.2.0-linux.tar.gz targets on x86_64
  • aarch64 artifacts consider experimental