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# 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 1.1.1

## 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

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