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RELEASE_NOTES.md

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Apache TsFile 2.2.0

New Feature

  • TsFile-Python fully supports TEXT and STRING data types.
  • The Python interface supports the to_dataframe method.
  • C++ TsFile supports encoding formats such as RLE.
  • Both C++ TsFile and Java TsFile table models support tag filtering.
  • C++ TsFile supports writing data of the TEXT type.
  • Added the CAMEL encoding method.
  • ...

Improvement/Bugfix

  • Fixed the issue where the CppTsFile write and query interfaces had various exceptions when handling null values.
  • Fixed the issue where Cpp TsFile failed to write data when TAG and FIELD columns were all empty (only timestamps existed with no actual data).
  • Fixed the issue where column names were all converted to lowercase when constructing a Tablet in Cpp TsFile, resulting in the failure to add values to Tablets constructed with uppercase column names.
  • Fixed the issue where queries would throw errors when the values of TEXT-type columns in the CPP TsFile table model were partially empty.
  • Fixed security vulnerabilities CVE-2025-12183, CVE-2025-66566 and CVE-2025-11226.
  • ...

Apache TsFile 2.1.1

Improvement/Bugfix

  • [JAVA] AbstractAlignedTimeSeriesMetadata.typeMatch always return true in #538
  • [JAVA] Ignore the null value passed in the Tablet.addValue method in #540
  • [JAVA] Implement extract time filters in #539
  • [JAVA] Init all series writer for AlignedChunkGroupWriter in #545
  • [JAVA] Check max tsfile version in #548
  • [JAVA] Include common classes in tsfile.jar to fix #501 in #510
  • [JAVA] Implement extract value filters in #554
  • [JAVA] Fix wrong Private-Package declaration (related to #551) in #556
  • [JAVA] Avoid repeated calculation of shallow size of map in #559
  • [JAVA] Refactor UnknownType to extend AbstractType in #561
  • [JAVA] Add Tablet.append in #562

Apache TsFile 2.1.0

New Feature

  • [Java] Support setting default compression by datatype(#523).
  • [Java] Support using environment variables to generate main encrypt key(#512).
  • [Java] Support estimating ram usage of measurement schema(#508).
  • [Java] Add TsFileLastReader to retrieve the last points in a TsFile(#498).
  • [Cpp/C/Python] Support TsFile Table reader and writer.

Improvement/Bugfix

  • [Java] Fix memory calculation of BinaryColumnBuilder(#530).
  • [Java] Resolved case sensitivity issue when reading column names(#518).
  • [Java] Fix npe when closing the last reader that has not been used(#513).
  • [Java] Fix float RLBE encoding loss of precision(#484).

Apache TsFile 2.0.3

Improvement/Bugfix

  • move ColumnCategory to an outer class in (#461)
  • restrict encrypt key length to 16 in (#467)
  • Cache hash code of StringArrayDeviceID in (#453)
  • Skip time column when generating TableSchema in (#414)
  • Check blank column name or table name in (#471)
  • Optimizations regarding chunk metadata sort & timeseries metadata serialization in (#470)
  • Remove redundant conversion in TableResultSet in (#473)
  • Add switch to disable native lz4 in (#480)

Apache TsFile 2.0.2

Improvement/Bugfix

  • Correct the retained size calculation for BinaryColumn and BinaryColumnBuilder
  • Don't print exception log when thread is interrupted (#386)
  • Fix float encoder overflow when float value itself over int range (#412)
  • Fix date string parse error (#413)
  • compaction adapting new type when table alter column type (#415)
  • primitive type compatible (#437)
  • Fixed the empty string ser/de bug & null string[] array calculation bug
  • add getter for encryptParam (#447)

Apache TsFile 2.0.1

Improvement/Bugfix

  • Modify tablet usage (#358)
  • Add column builder compatibility (#367)
  • add cache table schema map option (#369)
  • fix getVisibleMetadataList
  • TimeColumn.reset() throws UnsupportedOperationException (#379)
  • Add statistic compatibility (#382)

Apache TsFile 2.0.0

New Feature

  • TsFile V4 for Table Model by @jt2594838 in #196
  • Support dictionary encoding for STRING data type. by @jt2594838 in #238
  • Modify default timestamp encoding by @shuwenwei in #309
  • Tsfile java interfaces v4 by @shuwenwei in #307
  • Convert column name and table name to lower case by @shuwenwei in #322
  • Add type cast interfaces in TsDataType by @jt2594838 in #332

Improvement/Bugfix

  • Fix allSatisfy bug in InFilter by @JackieTien97 in #219
  • Fix bug in the conversion of int types to timestamp. by @FearfulTomcat27 in #223
  • Fix getValue method in Tablet doesn't support Date and Timestamp type by @HTHou in #243
  • Fix error when write aligned tablet with null date by @HTHou in #250
  • Fix tablet isNull method not correct by @HTHou in #255
  • Fixed the issue that the time of the first data item written to TSFile by measurement cannot be a negative number by @luoluoyuyu in #297
  • Fix float encoder overflow by @HTHou in #342

Apache TsFile 1.1.3

  • perf: Optimize aligned object memory size calculation
  • feat: add markRange / unmarkRange / merge for high-performance bit manipulation
  • Modify the TsFileSequenceReaderTimeseriesMetadataIterator next function to return a LinkedHashMap
  • fix GroupByMonthFilter.getTimeRanges
  • Fix bug in PaginationController
  • change config not found log to debug
  • Init all series writer for AlignedChunkGroupWriter
  • Added memory calculation for tablet
  • Dont print exception log when thread is interrupted
  • Bump lz4-java version to 1.10.1

Apache TsFile 1.1.2

Improvement/Bugfix

  • Fix the bug in parse date to int when year out of range by @HTHou in #500
  • Add TsFileLastReader for retrieving last points in a TsFile by @jt2594838 in #506
  • Added accountable function to measurementSchema by @Caideyipi in #509
  • Correct the retained size calculation for BinaryColumn and BinaryColumnBuilder by @JackieTien97 in #514
  • add switch to disable native lz4 (#480) by @jt2594838 in #515
  • Correct the memroy calculation of BinaryColumnBuilder by @JackieTien97 in #530
  • Fetch max tsblock line number each time from TSFileConfig by @JackieTien97 in #535
  • Support set default compression by data type & Bump org.apache.commons:commons-lang3 from 3.15.0 to 3.18.0 by @jt2594838 in #547
  • Avoid calculating shallow size of map by @shuwenwei in #566
  • Add methods for RamUsageEstimator by @shuwenwei in #570

Apache TsFile 1.1.1

Improvement/Bugfix

  • Fixed the issue that the time of the first data item written to TSFile by measurement cannot be a negative number (#297)
  • Add LongConsumer ioSizeRecorder in TsFileSequenceReader for IoTDB scan (#301)
  • Add readItimeseriesMetadata method (#312)
  • Tablet.serialize() may throw an exception due to null values in the Date column (#330)
  • Add FlushChunkMetadataListener (#328)
  • Add final for readData methods (#347)
  • Bump logback to 1.3.15 (#362)
  • Fix example compile issue (#400)
  • Fixed the empty string ser/de bug & null string[] array calculation bug (#449)

Apache TsFile 1.1.0

New Feature

  • Support new data types: STRING, BLOB, TIMESTAMP, DATE by @Cpaulyz in #76
  • Add an equivalent .getLongs() method to .getTimes() in TimeColumn. by @Sh-Zh-7 in #61
  • Return all columns in TsBlock class by @Sh-Zh-7 in #80

Improvement/Bugfix

  • Fix value filter allSatisfy bug by @liuminghui233 in #41
  • Fix error log caused by ClosedByInterruptException by @shuwenwei in #47
  • Fix the mistaken argument in LZ4 Uncompressor by @jt2594838 in #57
  • Remove duplicate lookups in dictionary encoder by @MrQuansy in #54
  • Optimize SeriesScanUtil by memorizing the order time and satisfied information for each Seq and Unseq Resource by @JackieTien97 in #58
  • Fix TsBlockBuilder bug in AlignedPageReader and PageReader. by @JackieTien97 in #77
  • Fix ZstdUncompressor by @lancelly in #132
  • fix RLBE Encoding for float and double by @gzh23 in #143
  • Fix uncompress page data by @shuwenwei in #161
  • Fix encoder and decoder construction of RLBE by @jt2594838 in #162
  • Fix aligned TimeValuePair npe by @shuwenwei in #173
  • Fix StringStatistics data type by @shuwenwei in #177
  • Fix bug in the conversion of int types to timestamp. by @FearfulTomcat27 in #224
  • Fix error when write aligned tablet with null date by @HTHou in #251

Apache TsFile 1.0.0

New Features

  • Support registering devices
  • Support registering measurements
  • Support adding additional measurements
  • Support writing timeseries data without pre-defined schema
  • Support writing timeseries data with pre-defined schema
  • Support writing with tsRecord
  • Support writing with Tablet
  • Support writing data into a closed TsFile
  • Support query timeseries data without any filter
  • Support query timeseries data with time filter
  • Support query timeseries data with value filter
  • Support BOOLEAN, INT32, INT64, FLOAT, DOUBLE, TEXT data types
  • Support PLAIN, DICTIONARY, RLE, TS_2DIFF, GORILLA, ZIGZAG, CHIMP, SPRINTZ, RLBE encoding algorithm
  • Support UNCOMPRESSED, SNAPPY, GZIP, LZ4, ZSTD, LZMA2 compression algorithm