Tags

Release Notes

FIX BUGS:
[TD-2604]: fix coredump
[TD-2583]:function min gets result value zero when column values contain NULL
[TD-2429]: data may be lost during load balancing
[TD-2557]:insert from file failed after changing stable
[TD-2587]: fix bugs introduced by refactor.
[TD-2559]: taos can't cancel stable query when fetching data
[TD-2302]: fix nodejs exception when query a null value
[TD-2563]: fix invalid write caused by top/bottom query at client side.
[TD-2562]: fix bug in twa query.
[TD-2457]: check the invalid order by clause for top/bottom query.
[TD-2560]: client crash when execute 'show tables like'
[TD-2550]: fix nodejs connector of td2.0-connector cannot use in 2.0.8.0 or later
[TD-2511]: DB new option cacheLastRow

ENHANCEMENTS:
[TD-2606]: double TSDB_MAX_WAL_SIZE from 1M to 2M
[TD-2561]: new field clusterId for SConnectRsp
[TD-2378]: optimize the client memory requirement.
[TD-2512]: support in memory cached last row query.

NEW FEATURES:
[TD-2502]: force version checking with rpc request messages

DOCS:
[TECO-40]: add video link to documentation markdown, change FAQ to list

TEST:
[TD-2585]: migrate 4 sim cases to python to improve speed
[TD-2551]: get insert delay values for taosdemo performance

FIX BUGS:
[TD-2548]:wrong error message is showed when taos connect failed
[TD-2477]:taosd crash when executing queries
[TD-2538]: crash when sql has limit & offset
[TD-2534]: fix crash on null pointer parser
[TD-2528]: messy characters in alert msgs
[TD-2487]: create stble with a wrong type tag but report length too long
[TD-2464]: validate maxTablesPerVnode and reset to minTablesPerV…
[TD-2484]: use IPv4's AI_INET instead of AI_UNSPEC
[TD-2550]: fix nodejs bug in new version.
[TD-2482]: fix bug in the skiplist iteration during query processing.
[TD-2471]: fix the bug during the removal of elements in trashcan.
[TD-2488]: fix super table bug.

ENHANCEMENTS:
[TD-2434]: reduce the memory requirement during super table interval query.

NEW FEATURES:

DOCS:
[TECO-39]: continue refine connector page.

TEST:
[TD-2488]: add test case
[TD-965]: add test case for TWA

Release Notes

FIX BUGS:
[TD-2442]: taos crash when press ctl+c to cancel query
[TD-2481]: cannot create stream
[TD-2438]: Coverity fix
[TD-2340]: reserve field uint32_t crc for checksums
[TD-2481]: cannot create stream
[TD-2469]: disable client epSet.fqdn update with single node cluster
[TD-956]: TWA query does not need the start/end time range.
[TD-2460]: join query failed through REST API.
[TD-2454]: fix client memory leaks.
[TD-2433]: fix the bug that server_status() not working.
[TD-2190]: failed to time range check for fill query.

ENHANCEMENTS:
[TD-2263]: debug log epSet.fqdn when connect success
[TD-2176]: improve the first/last query performance against super table.
[TD-1827]: force version check for client messages

NEW FEATURES:
[TD-2425]: multi-table creation in one request.

DOCS:

TEST:
[TD-2424]: add test case for float compare

Release Notes

FIX BUGS:
[TD-2420]: fix import file crash.
[TD-2373]: data race in removeFromWheel
[TD-2368]: show 4 new variables
[TD-2366]: is (not) null for binary/nchar
[TD-2274]: make ep inconsistent log message more clear
[TD-2363]: Super Table hash is emptied abnormally, resulting in data query failure
[TD-2370]: fix the deadlock when the system exits
[TD-2347]: Modify some bugs in data migration and add mandatory check
[TD-2342]: disallow cross db create child table
[TD-2420]: fix import file crash.
[TD-2424]: fix the float column precision caused filter failure.
[TD-2129]: fix the bug that twa query result is incorrect while the value is less than 0.
[TD-2414]: fix the bug that twa query processing causes server crash while query time range is empty.
[TD-2165]: fix the bug that query can not be stopped if all query threads are busy.
[TD-2364]: fix mybatis-plus pagenation exceptions
[TD-2373]: data race in removeFromWheel
[TD-2366]: is (not) null for binary/nchar
[TD-2342]: disallow cross db create child table
[TD-2344]: fix bugs for percentile against float columns.

ENHANCEMENTS:
[TD-2371]:Record important information to a separate log file called taoinfo
[TD-2304]: make *Invalid timestamp* error more clear
[TD-2379]: configure the number of CPU cores available for query processing.
[TD-2375]: configure the number of CPU cores available for query processing.
[TD-2361]: optimize the failure retry in insert processing.

NEW FEATURES:
[TD-2405]: new option -C (--dump-config) for taos and -C for taosd to dump configuration
[TD-2310]: add dest table into show streams
[TD-2191]: taosdemo tool for java developers
[TD-1680]: print ellipsis when binary/nchar is too long

DOCS:

TEST:
[TD-2129]: add test case for twa
[TD-2114]: Improve performance test script
[TD-2342]: add test case

Release Notes

FIX BUGS:
[TD-2301]: change
[TD-2267]: remove redundant macro definition
[TD-2199]: fix bugs in percentile in case of no data in table.
[TD-2236]: fix bugs in groupby normal colunms + last query
[TD-2281]: filter unsupported mixed up query functions.
[TD-2313]: ensure length of nchar cols not exceed limit
[TD-2169]: fix memory leaks in group by query processing.
[TD-2265]: add the total number of rows in submit block during parse insert sql.
[TD-2298]: fix taosd crash during table interval query.
[TD-2255]: fix incorrect log variable and sim test cases
[TD-2277]: fix invalid column type in stable query.
[TD-2265]: fix TSDB_MAX_ALLOWED_SQL_LEN from 8MB to 1MB
[TD-2129]: fix bug in twa calculation.
[TD-2198]: cq can be created more than once
[TD-2182]: coverity issues
[TD-2216]: crash in qUtil.c
[TD-2129]: fix bugs in twa query.
[TD-2227]: remove false error message in the log file while no results returned from server in case of query against super table.
[TD-2220]: fix the bug in column arithmetic expression.
[TD-2220]: fix the bug in column arithmetic expression.
[TD-2193]: fix the offset error in arithmetic expression.
[TD-2180]: fix coverity issues.
[TD-2169]: fix memory leak in handing the group by binary|nchar type data.
[TD-2175]: fix the error in result field name and nchar column length

ENHANCEMENTS:
[TD-2293]: improve projection query performance for super table.
[TD-2263]: debug log epSet.fqdn when connect success
[TD-2255]: make db options days and keep error message more clear
[TD-2163]: add the version check for query message.

NEW FEATURES:
[TD-2325]: enable configure if 50% cpu will be used in query processing.
[TD-2309]: add config option to enable/disable stream (continuous query)
[TD-1859]: restful implementation for taos-jdbc

DOCS:

TEST:
[TD-2132]: add memory leak test case

Release Notes

FIX BUGS:
[TD-2156]: change packaging scripts for aarch32
[TD-2121]: fix coredump when commit failed
[TD-2084]: invalid read when close TSDB
[TD-2081]: fix alter blocks problem

ENHANCEMENTS:
[TD-2070]: optimize the load data performance.
[TD-2070]: improve project query performance.

NEW FEATURES:
[TD-1859]: a JDBC implementation use TDengine Restful Interface
[TD-2066]: pass error code when commit failed
[TD-1869]: mybatis plus demo for Java Developers
[TD-2004]: use queue to implement commit
[TD-2052]: common java connection pools examples
[TD-2052]: common connection pool demos

DOCS:

TEST:
[TD-1590]: a test case for JDBC failover
[TD-1592]: add test case for kill qeury>

!!!NOTICE!!!
please update your python connector if you update the tdengine to v2.0.8.0

Release Notes

FIX BUGS:
[TD-1825]: avoid error for nodejsChecker

ENHANCEMENTS:
[TD-1870]: optimize the memory consumption during interval query.
[TD-225]: optimize the memory consumption for interval query.

NEW FEATURES:
[TD-1954]: a inport/export tool for logical backup
[TD-1877]: custom temporary directory

DOCS:

TEST:
[TD-1702]: add test cases for TSDBDriver

RELEASE NOTES

FIX BUGS:
[td-225] fix bugs found by tsim
[td-255] compact result for all show command.
[TD-1676] fix jenkins valgrind test case
[td-1728] fix memory leaks
[td-1747] reduce tableMeta size
[TD-1750] add python2 connectionerror
[td-1764] fix memory leak.

NEW FEATURES:
[TD-1476] a demo for calcite
[TD-1507] add a nodejs checker for nodejs examples

TEST:
[TD-1497] python connector check
[TD-1584] add some testcases for testing before 1970s
[TD-1636] remove last 2 bytes of file 'wal0'
[TD-1677] add query test case
[TD-1743] add test case for remove db and STable
[TD-1744] PythonChecker
[TD-1745] check C# connector
[td-1752] add test cases.
[TD-1758] add test case

ver-2.0.5.2

RELEASE NOTES

FIX BUGS:
[TD-1533]: fix the parse jdbc url error
[TD-1523]: fix memory leaks and refactor some functions.
[TD-225]: fix compiler error on windows
[TD-1532]: fix taosdemo case bug

NEW FEATURES:
[TD-1572]: A JdbcTaosdemo is supported now.
[TD-1603]: add new error code at client side
[TD-1651]: add lgtm code analyzer support.
[TD-1313]: implement getColumns method in the TSDBDatabaseMet…

TEST:
[TD-1386]: add test case for retention
[TD-1587]: add python restful example
[TD-1469]: add test case for alter table and insert

ELEASE NOTES

FIX BUGS:
[TD-1407]: fix an issue coverity reports getenv() return a strin…
[TD-1423]: fix bugs in group by nchar/binary columns.
[TD-1391]: fix bugs in release obj in submit processing.
[TD-1459]: fix compile error for release build type.
[TD-225]: fix compiler error in win platform
[TD-1245]: fix compile error
[TD-1478]: update sim script.

TEST:
[TD-1389]: Update null value test
[TD-1410]: add a tool for test JDBC Connector
[TD-1329]: add test case for incorrect count query
[TD-1478]: add test case query groupby with interval
[TD-804]: add test case for metadata update

fix:
[TD-1359] add recv timeout for accepted tcp socket

DOC:
[TD- ] Updates for Java Connector markdown files
[TD- ] Changed the description of quotation marks in password change
[TD- ] Fix timestamp precision description.
[TD- ] Improve building steps with specific linux distributions
[TD- ] Improve the readme document with building steps
[TD- ] Modify wallevel description in section 2 of Master/Slave vnode writing process
[TD- ] Update TAOS SQL-ch.md
[TD- ] Update faq-ch.md
[TD- ] Fix some typo and expired content in documents.
[TD- ] Add entrance for Lua connector introduction.

FIX BUGS:
[TD-804] refresh meta data if SQL cannot be parsed
[TD-225] fix last query bug and add some function definitions. Add test cases, Fix compiler error.
[TD-934] fix invalid SQL
[TD-1248 TD-1044 TD-1247] fix crash in tcache.c
[TD-1227] add test case
[TD-1302] Interval query ignores the loading of data block, resulting in crash
[TD-1278] fix bug: If the tag is too long, no error will be reported
[TD-1250] Support the join of nchar
[TD-1099] natual interval in stream and bug fix, natual month/year processing
[TD-621] Looking for the hidden trouble of memory allocation failure in query process
[TD-1173] Invalid account permission setting
[TD-1247] crash while release hash obj
[TD-1230] last_ Row supports time range filtering
[TD-1257] Starting a non master node first may cause the cluster to be out of sync
[TD-1090] compile error in windows
[TD- ] Fixed a problem with crash_gen tool, so that it releases DB connections properly
[TD- ] Update query api for Lua connector.
[TD- ] All connectors should be updated since taos_query has been modified for thread safety. Only query api is updated, callback in stream is not yet.
[TD- ] Fixed a major problem in crash_gen tool, now it properly releases DB connections
[TD- ] daemon works with strict mode now.
[TD- ] add docker repo link
[TD- ] fix var/log/taos permission issue.
[TD- ] add historyfile plug to access .taos_history file.
[TD- ] Update query api for Lua connector.
[TD- ] add more check on data compress and decompress
[TD- ] updates for Java Connector

NEW FEATURES:
[TD-1256] Add description in faq for integrating network connectivity test into Taos program

ENHANCEMENTS:
[TD-1206] Optimizing the query performance of percentile with a new temporary file storage structure
[TD-1204] Improve the performance of restful interface
[TD- ] add natural interval support, now if query with: select count(*) from meters interval(1n);
the actual interval is natural month instead of 30 days. here n is for natural month, and y is for natural year.
[TD- ] last_row function supports time range filtering，and this time filter works as expected.

FIX BUGS:
[TD-1389]: update query null value test
[TD-]: fix timestamp precision description
[TD-1248]: fix crash in tcache.c
[TD-1341]: Fix link and runtime errors in vs2019 compilation environment
[TD-1224]: Repair the possibility of table uid duplication
[TD-1303]: The timestamp display incorrectly when the show connecions statement is executed
[TD-1310]: Fix some defects of mqtt module
[TD-1323]: Allow no port number for the ”first“ configuration item
[TD-1354]: Monitor is no longer executed in the timer thread
[TD-1299]: crash when not using default tag order
[TD-1252]: Alert reports result type is not bool
[TD-1309]: comparation of incompatible types should raise an error
[TD-1039]: query 'select database()' return result like mysql
[TD-1407]:  fix an issue coverity reports

NEW FEATURES:
[TD-1230]: last_row function supports time range filtering，and this time filter works as expected.
[TD-934]: Distinguish between invalid error and sql syntax error

ENHANCEMENTS:
[TD-1370]: support function count(1)

TEST:
[TD-1290] add test case for group by
[TD-1320] add test case - insert data with tag specified
[TD-1360]: add test case - read binary data using Java
[TD-1389]: update query null value test

try to release a version

FIX BUGS:
1.Fix some bugs in fill query for super table.
2.Fix the crash while executing "show variables" command.
3.Fix JDBC memory leak whiling invoking the C native library.
4.The default output column name for arithmetic expression is set to the original user input.
5.Add some checks for memory allocation failure.

NEW FEATURES:
1.The constant value column in select clause is supported.
2.The binary tags can be used as the join query condition for super tables.

ENHANCEMENTS:
1.Optimized the last_row query performance.
2.Reducing the memory consumptions during the time interval query.

version 2.0.1.9

1.fix jdbc bug;

fix cluster bug for bawuxinxi