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Releases

Below you can find the latest downloads and the new functionalities and bug fixes which shipped with each version.

Download​

The latest available version is v0.0.20746.

Release Notes​

note

In case you are wondering why all our releases start with 0.0, read this FAQ entry.

0.0.20746 [Nov 7 2024]​

  • Support for array_contains, array_position and array_positions was added
  • Support for the unnest set-returning function was added
  • Various performance and stability improvements

0.0.20027 [Aug 19 2024]​

  • Introduced new array SQL datatypes.
  • The options available for EXPLAIN changed:
    • EXPLAIN VERBOSE was removed in favor of EXPLAIN (FORMAT JSON)
    • There are two new output formats EXPLAIN (FORMAT TERSE_JSON) and EXPLAIN (FORMAT SCHEMA)
  • Update Unicode support from Unicode 14.0 to 15.1
  • Update Hyper's collation tables from CLDR 71 to CLDR 74. Besides corrections this also adds new collations to Hyper.

0.0.19691 [July 4, 2024]​

  • Hyper API is now available under the Apache 2.0 license.

0.0.19484 [June 6, 2024]​

  • Introduced a new 32-bit floating point data type for REAL.
    • Previously, REAL was internally mapped to 64-bit DOUBLE PRECISION.
    • Introduced new database file format version 4 to support reading and persisting the new 32-bit floats.
    • A CAST(… AS double precision) is needed to store such columns in older file formats.
  • Documented the new and improved database file format version 3 that was introduced in version 0.0.16123. The new format supports 128-bit numerics. Refer to Hyper Database Settings for more information.
  • Documented the regexp_replace function which provides substitution of new text for substrings based on POSIX regular expressions.
  • Added native support for Apple Silicon processors (aarch64) for macOS 13.0 or newer
danger

Queries using REAL, FLOAT4, or FLOAT(p) with p <= 24 are now treated as 32-bit floating points. This can lead to different results due to the reduced precision of 32-bit floating points. To preserve the old behavior, you need to use the types DOUBLE PRECISION, FLOAT8, or FLOAT(p) with p >= 25. These continue to be treated as 64-bit floating points.

0.0.18825 [March 6, 2024]​

  • Updated OpenSSL version from 3.1.4 to 3.2.1
  • IANA released version 2024a of the Time Zone Database. Hyper’s time zone information is updated accordingly. Noteworthy changes:
    • Kazakhstan unifies on UTC+5 beginning 2024-03-01.
    • Palestine springs forward a week later after Ramadan.

0.0.18618 [February 7, 2024]​

  • Overhauled the SQL type propagation rules for the NUMERIC data type. This can lead to differences in the precision and number of decimal digits of NUMERIC calculations in existing queries and their results. The changes are:
    • Multiplication and division of NUMERIC with integer and numeric types now follows different rules to determine the result's precision and scale.
    • The AVG aggregate function now adds 6 instead of 4 decimal digits.
    • The statistical aggregate functions (like STDDEV_SAMP) now always return NUMERIC(38,6) for integer and numeric inputs. If a scale of 6 is too low for your purposes consider casting the input to double precision.
    • Integer literals are now treated as if they were of type numeric with the minimal required precision when in arithmetic operations with NUMERIC values.
  • IANA released version 2023d of the Time Zone Database. Hyper’s time zone information is updated accordingly. Noteworthy changes:
    • Ittoqqortoormiit, Greenland changes time zones on 2024-03-31.
    • Vostok, Antarctica changed time zones on 2023-12-18.
    • Casey, Antarctica changed time zones five times since 2020.
    • Code and data fixes for Palestine timestamps starting in 2072.

0.0.18441 [January 10, 2024]​

  • Various performance and stability improvements

0.0.18369 [December 8, 2023]​

  • Added support for localized_week
    • The functions EXTRACT, date_part and date_trunc have a new field localized_week.
    • Localized week options for the new field are added. See Localized Week Options.

0.0.18161 [November 8, 2023]​

  • Reduced memory consumption for WITH RECURSIVE: Up to 20,000x less memory usage in microbenchmarks.
  • Improved performance for WITH RECURSIVE: Roughly 2x improvement in microbenchmarks.
  • Improved heuristic rewrites for joins:
    • Remove semi/anti-joins with a constant FALSE conditions.
    • Apply the exact same "constant FALSE condition" rewrites also in cases where the join has an empty input on one of both sides.
  • Updated OpenSSL version from 1.1.1u to 3.0.10.

0.0.17971 [October 9, 2023]​

  • .Net Deprecation: As announced last release, we are deprecating the .NET version of Hyper API. We decided to open-source its source code, so whoever might be interested in maintaining it can pick up where we left.
  • Some of the Fiscal Calendar Options are renamed:
    • start_month is renamed to fiscal_year_start_month.
    • first_day_of_week is renamed to first_day_of_fiscal_week.
  • The EXTRACT function was accepting (and ignoring) named arguments that were not required. Now it only accepts Fiscal Calendar Options when fiscal function fields are used. A named argument that is not required by the EXTRACT function will be rejected.

0.0.17782 [September 6, 2023]​

  • Sharing a Hyper process between multiple programs is now supported. This allows for better resource management and performance if multiple programs that interact with Hyper run at the same time. See HyperProcess: Performance Best Practices.
  • The HyperAPI Python zip package was removed from our download page. The package is available on the Python Package Index (PyPI) and we recommend installation through pip install tableauhyperapi instead.
  • .Net Deprecation: The .NET version of Hyper API is deprecated. This release will be the last update for .NET. In the future, .NET will not receive any new features or updates. The old packages will stay available on NuGET indefinitely, so you can keep using older versions in .NET. The other languages (Python, Java, C++) are not impacted by this in any way. In case this is causing issues for you, please reach out via Slack.

0.0.17537 [August 2, 2023]​

  • Support for fiscal calendar was added
    • The functions EXTRACT, date_part and date_trunc have the following fiscal calendar fields: fiscal_week, fiscal_month, fiscal_quarter, and fiscal_year.
    • Fiscal calendar options for the newly-added fields were added. See Fiscal Calendar Options.
  • Updated OpenSSL version from 1.1.1t to 1.1.1u.
  • Support for reading and writing Arrow is now stable and ready for use in production

0.0.17360 [July 5, 2023]​

0.0.17231 [June 7, 2023]​

  • Support for multiple concurrent connections to the same Hyper file was added
  • Support for FETCH [...] WITH TIES was added. See documentation of FETCH
  • Improved query planning for external formats (e.g., Parquet, CSV, ...)
    • Samples are used for selectivity estimation on external formats
    • Distinct counts, statistics, and samples are no longer computed eagerly when issuing a CREATE TEMP EXTERNAL TABLE. Instead, the first query that uses the external table updates them.

0.0.17002 [May 3, 2023]​

  • Improved documentation
  • IANA released version 2023c of the Time Zone Database. Hyper’s time zone information is updated accordingly. Noteworthy changes:
    • Egypt now uses DST again, from April through October.
    • This year Morocco springs forward April 23, not April 30.
    • Palestine delays the start of DST this year.
    • Much of Greenland still uses DST from 2024 on.
    • America/Yellowknife now links to America/Edmonton.
    • When observing Moscow time, Europe/Kirov and Europe/Volgograd now use the abbreviations MSK/MSD instead of numeric abbreviations, for consistency with other timezones observing Moscow time.

0.0.16868 [April 5, 2023]​

  • Introduced approx_count_distinct aggregate
    • It can be used to compute an approximation to exact count distinct with configurable relative error.
    • E.g., the query select approx_count_distinct(x) from generate_series(1,pow(10,6)) s(x) returns 960712.
    • A relative error argument is supported as well, e.g., select approx_count_distinct(x, 0.002) from generate_series(1,pow(10,6)) s(x) returns 998192, a much better estimate with relative error under 0.2% (the default value if omitted is 2.3% relative error accuracy).
    • In general, approx_count_distinct(c, e) uses less memory than count(distinct c) and is faster. This makes it a good option when exact distinct count is not required.

0.0.16638 [March 1, 2023]​

  • Updated OpenSSL version from 1.1.1q to 1.1.1t.
  • IANA released version 2022g of the Time Zone Database. Hyper’s time zone information is updated accordingly. Noteworthy changes:
    • Jordan and Syria switched from +02/+03 with DST to year-round +03
    • Mexico no longer observes DST except near the US border
    • Chihuahua moved to year-round -06 on 2022-10-30
    • Fiji no longer observes DST
    • Simplified four Ontario zones
    • The northern edge of Chihuahua changed to US timekeeping
    • Much of Greenland stops changing clocks after March 2023
    • Fixed some pre-1996 timestamps in northern Canada

0.0.16491 [February 8, 2023]​

0.0.16377 [January 18, 2023]​

  • Minor improvements and bug fixes.

0.0.16123 [December 7, 2022]​

  • Added support for 128-bit numerics. This allows a precision of up to 38 for the NUMERIC SQL type.
  • Added support to read 128-bit DECIMAL values from parquet files.
  • Overhauled the SQL type propagation rules for the NUMERIC data type.
  • Improved partition pruning support when querying Apache Iceberg. This should speed up queries with equality predicates on Iceberg columns partitioned with bucket partitioning.
  • New ANY_VALUE aggregate function: The ANY_VALUE aggregate function returns an arbitrary, implementation-defined value from the set of input values within a group.

0.0.15888 [November 9, 2022]​

  • IANA released version 2022d of the Time Zone Database. Hyper's time zone information is updated accordingly. Noteworthy changes:
    • Palestine daylight savings time (DST) transitions are now Saturdays at 02:00 (24-hour clock).
    • Simplified three Ukrainian zones into one.

0.0.15735 [October 5, 2022]​

  • New support for Apache Iceberg as an external format.
  • Support for reading external files from S3 is now enabled by default. (The experimental_external_s3 setting has been removed. Specifying it now causes an unknown setting error.)
  • "New convenience functions to extract date and time units:
    • New YEAR function: extracts the year of a timestamp or interval.
    • New QUARTER function: extracts the quarter of a timestamp.
    • New MONTH function: extracts the month of a timestamp or interval.
    • New WEEK function: extracts the week of a timestamp.
    • New DAY function: extracts the day of a timestamp or interval.
    • New HOUR function: extracts the hour of a timestamp or interval.
    • New MINUTE function: extracts the minute of a timestamp or interval.
    • New SECOND function: extracts the second of a timestamp or interval.
  • IANA released version 2022c of the Time Zone Database. Hyper's time zone information is updated accordingly. Noteworthy changes:
    • Chile's DST is delayed by a week in September 2022.
    • Iran no longer observes DST after 2022.
    • Renamed Europe/Kiev to Europe/Kyiv.
    • Fixes to support timestamps prior to 1970.

0.0.15530 [September 7, 2022]​

  • To read external data from Amazon S3, you must now provide credentials when using the extended syntax s3_location(...). Omitting credentials now causes an error. For anonymous access to S3 provide empty credentials ("") instead.

0.0.15305 [August 3, 2022]​

  • Minor improvements and bug fixes.

0.0.15145 [July 13, 2022]​

  • Added ZSTD and LZ4_RAW compression support for Parquet files.
  • Updated OpenSSL version from 1.1.1n to 1.1.1q.
  • IANA released version 2022a of the Time Zone Database. Hyper's time zone information is updated accordingly. Noteworthy changes:
    • Palestine will spring forward on 2022-03-27, not 2022-03-26.
    • From 1992 through spring 1996, Ukraine's DST transitions were at 02:00 standard time, not at 01:00 UTC.
    • Chile's Santiago Mean Time and its LMT precursor have been adjusted eastward by 1 second to align with past and present law.
  • Updated Hyper's collation tables from CLDR 38.1 to CLDR 41. Besides corrections this also adds new collations to Hyper.
  • Updated Unicode support from Unicode 13.0.0 to 14.0.0.

0.0.14946 [June 1, 2022]​

  • Updated OpenSSL version from 1.1.1l to 1.1.1n.
  • New TRY_CAST function: converts a value to a target type, returns NULL on failure.

0.0.14751 [May 4, 2022]​

  • Restriction pushdown for Parquet files: Hyper now exploits min/max values in Parquet RowGroups to skip groups based on the predicates present in SQL queries.
  • Besides many corrections, this update also adds a significant number of new collations to Hyper. Previously, the collations Hyper used were based on CLDR 1.8 from March 2010.
  • C++: Fixed inserting and querying columns of type CHAR(1).
  • Fixed empty strings of type CHAR(1) being returned as a space instead of '\0'.
  • Fixed a defect which could lead to Hyper crashing when using outer joins with Parquet files.
  • Fixed a defect which prevented Hyper from opening external files from Amazon S3 if the S3 URL contained a whitespace character, e.g. "s3://bucket/filename with whitespace.csv"

0.0.14567 [March 23, 2022]​

  • Result fetching of large results is up to 5x faster.
  • Fix a potential crash when reading multiple Parquet files with string columns.

0.0.14401 [March 2, 2022]​

  • Introduced the new and improved database file format version 2 that can be used via Hyper Process Settings. The new format stores data independent of collation versions. File format 1 is deprecated in favor of the new file format 2. Refer to Hyper Database Settings for more information.
  • Added support for S3 keys containing special characters (such as "=")
  • Implemented support for external(source_location(...)) syntax.

0.0.14265 [February 2, 2022]​

Improved external file format support (CSV & Apache Parquet): Now you can use Hyper as a SQL query engine directly on top of open formats and data lakes.

  • Hyper now has experimental support for reading external data directly from Amazon S3. You need to enable the experimental_external_s3 setting to use this feature and be aware that it can change or be removed at any time without prior notice. The feature is considered stable as of 0.0.15735. The experimental flag is not necessary anymore.

    Hyper's S3 capabilities are highly optimized (using techniques such as concurrent requests, request hedging and prefetching). For maximum performance, ensure a high network bandwidth to Amazon S3, e.g., by running HyperAPI directly on an AWS EC2 instance.

  • Temporary external tables: The new CREATE TEMPORARY EXTERNAL TABLE command exposes external data to SQL as if it was a Hyper table, but the data is read directly from the external file whenever the external table is referenced in a query.

  • The new function external, enables reading external data directly in a SQL query without creating an external table.

  • Aligned the syntax of the COPY statement with the syntax for external tables and the external function. The old syntax is still supported for PostgreSQL compatibility but its use is discouraged.

  • The new ARRAY[...] syntax enables reading from multiple files when using the external function, external tables, or the COPY command.

  • Graceful handling of invalid UTF-8 sequences: The new SANITIZE option instructs Hyper to replace invalid UTF-8 sequence with the replacement character (�) instead of failing the query with an error.

  • Improved support for reading CSV files:

    • GZip-compressed CSV files: CSV files ending in .gz will automatically be assumed to be GZip-compressed.
    • UTF-16 encoded CSV files: UTF-16 reading can be enabled using the new ENCODING option.
    • Graceful cast failure handling: When a value in the file cannot be cast to the target type, the new ON_CAST_FAILURE option instructs Hyper to read the value as NULL instead of raising an error.

0.0.14109 [January 5, 2022]​

  • Minor improvements and bug fixes.

0.0.13980 [December 8, 2021]​

  • Smaller packages: Thanks to the removal of unused collation data from the Hyper binary, the package size was reduced. For example, the size of an unpacked Windows Python installation went from 157 MB to 145 MB. The download size of a packed Windows Python package was reduced from 47 MB to 42 MB.
  • Java: Improved the read performance of text and geography columns.
  • Fixed a defect that could lead to crashes when reading Parquet files with text columns that contain null values.
  • Fixed a defect that could lead to Hyper sorting and comparing text with the "ro" locale incorrectly.
  • IANA released new versions of the Time Zone Database. This commit updates Hyper's Time Zone Database to release 2021e.

Noteworthy changes in the Time Zone Database:

* Palestine will fall back 10-29 (not 10-30) at 01:00.
* Fiji suspends DST for the 2021/2022 season.
* Jordan now starts DST on February's last Thursday.
* Samoa no longer observes DST.
* Merge more location-based Zones whose timestamps agree since 1970.
* Rename Pacific/Enderbury to Pacific/Kanton.

0.0.13821 [November 3, 2021]​

  • Reading Apache Parquet files is now officially supported and no longer has to be enabled through the use of the process setting ‘experimental_external_format_parquet’.
  • Improved performance for window functions for large data sets on multi-core machines:
    • calls without PARTITION BY clause improved by 5% - 20%
    • calls without PARTITION BY and ORDER BY clauses, e.g. ROW_NUMBER() OVER(), by 10% - 25%
  • Fixed a defect that could cause crashes when you deleted a tuple multiple times, or could cause wrong query results after single deletion.
  • Updated OpenSSL version from 1.1.1k to 1.1.1l

0.0.13617 [October 6, 2021]​

  • Fix a query compilation defect that led to reproducible crashes for a very small number of queries.
  • Upgraded Unicode support from Unicode 9.0.0 to 13.0.0

0.0.13394 [September 1, 2021]​

  • Hyper API now runs on AWS lambda.
  • Parquet files with dots in their column names can now be read.
  • Column references can now be qualified with database alias (e.g., SELECT db.schema.table.column ...)
  • More actionable error messages for a wide range of invalid SQL queries.
  • Going forward, the Hyper API will only support the three most recent versions of Python. Currently, those versions are 3.7, 3.8, and 3.9. However, the Hyper API will continue to support Python 3.6 for a transition period of three months.

0.0.13287 [August 4, 2021]​

  • Java: Dependencies are updated to newer versions. In particular, JNA was updated to 5.6.0.

0.0.13129 [July 7, 2021]​

  • Minor improvements and bug fixes.

0.0.12982 [June 9, 2021]​

  • Fixed a problem that could corrupt databases in rare cases when the new file format has explicitly been enabled by the user. This problem did not affect the default file format.
  • Updated OpenSSL dependency from 1.1.1g to 1.1.1k.

0.0.12805 [May 19, 2021]​

  • Hyper now has experimental support for reading Apache Parquet files. See Hyper API SQL documentation for details.
  • Hyper now adjusts the resulting interval from a timestamp subtraction so that 24-hour time periods are represented as days.
  • Hyper now supports +/-13 and +/-14 as timezone offsets.
  • Python: The most commonly used Hyper API types now have __repr__() methods and will return a string representation of the object when printed, making interactive exploring of the Hyper API more fun.
  • Improved handling of spatial types:
    • Parsing GEOGRAPHY values from well-known text (WKT) format automatically adjusts the order of vertices in polygons.
    • During WKT parsing, additional vertices may be added to more closely resemble the original shape specified in the WKT.

0.0.12514 [April 7, 2021]​

  • Fixed a rare defect where queries could return incorrect results after tuples at the end of a table were deleted.

0.0.12366 [March 10, 2021]​

  • Improved performance for complex queries thanks to improved join ordering.
  • Fixed a defect where Hyper would use too much memory when executing string expressions in certain contexts.

0.0.12249 [February 17, 2021]​

  • IANA released version 2021a of the Time Zone Database. Hyper's time zone information is updated accordingly. Noteworthy changes:
    • Revised predictions for Morocco's changes starting in 2023.
    • Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
    • Macquarie Island has stayed in sync with Tasmania since 2011.
    • Casey, Antarctica is at +08 in winter and +11 in summer.
    • Fiji starts DST later than usual, on 2020-12-20.
    • Palestine ends DST earlier than predicted, on 2020-10-24.
    • Volgograd switches to Moscow time on 2020-12-27 at 02:00.
    • South Sudan changes from +03 to +02 on 2021-02-01 at 00:00.
  • Added additional information to certain Hyper API exceptions that previously contained only their context id.

0.0.12005 [January 20, 2021]​

  • Introduced a new and improved database file format that can be used via Hyper Process Settings. Refer to Hyper Database Settings for more information.
  • Clarified the Create hyper file from csv example: We highlight the usage of the HEADER COPY option which ignores the first line in a csv file.
  • Java: Fixed the getShort() method to return a short instead of an int.

0.0.11952 [December 16, 2020]​

  • When Hyper is running inside a container, such as Docker, Hyper now respects the memory limits that are set for the container.

0.0.11889 [December 2, 2020]​

  • Fixed a parsing error that could lead to a failure to connect to a Hyper database. This error could occur with certain operating system configurations if you were using special UTF-8 characters as the database name.

0.0.11691 [November 9, 2020]​

  • Faster initialization of HyperProcess: Starting Hyper is now 4x faster. For example, on our internal Linux computers, we measured 11 milliseconds startup time instead of previously 44 milliseconds.
  • Python: TableDefinition.Column.collation represents the default collation with None now. Previously, the results of catalog.get_table_definition used '' for the default collation. This is a breaking change.

0.0.11556 [September 30, 2020]​

  • C++: Fixed a bug that could have lead to wrong or missing results when multiple ResultIterator or ChunkIterator iterators are constructed over the same hyperapi::Result object.
  • C++: Interface fix: Removed an incorrect noexcept specification from the ResultIterator() and ChunkedIterator() constructors for begin iterators. These functions may fail by throwing std::bad_alloc or hyperapi::HyperException. Those were previously flagged as noexcept even though they could have thrown.
  • Removed support for the PostgreSQL legacy end-of-data marker \.. The marker could be used to mark the end of CSV and TEXT input. Hyper now solely relies on the end-of-file condition to determine the end.

0.0.11355 [August 26, 2020]​

  • Removed the following settings for the HyperProcess class that were deprecated since version 0.0.10309:
    • log-dir: Use log_dir instead.
    • :restrict_database_directory: Not required since Hyper no longer creates database files in the working directory.
    • :database_directory: Not required since Hyper no longer creates database files in the working directory.
    • :log_file_size_limit: Use log_file_size_limit instead.
    • :log_file_max_count: Use log_file_max_count instead.

0.0.11249 [July 30, 2020]​

  • Hyper now correctly checks for NOT NULL constraints when creating a table from a CSV file with the COPY statement.

0.0.11074 [June 24, 2020]​

  • Adds several SQL functions for managing spatial data:
    • For creating geography objects (geo_make_point and geo_make_line).
    • For performing calculations on geography objects (geo_distance and geo_buffer).
    • For manipulating the vertex order of polygons in geography objects (geo_auto_vertex_order and geo_invert_vertex_order). These functions can be used to address problems (for example, with spatial joins or to automatically zoom) where data comes from a source that uses a different winding order for polygons than the one used by Tableau. In Tableau, the interior of the polygon is considered to be on the left of the path drawn by points of the polygon ring.
    • See Geographic Functions for more information.
  • Prepared queries gained support for parallelized execution. See PREPARE and EXECUTE for more information on prepared queries in Hyper.
  • Java: Fixed crashes that could occur when inserting more than 16 MB of data into a table.
  • Python: Fixed crashes of Python interpreter on shutdown by fixing reference counting.
  • .NET: Fixed broken Nuget packages.
  • Fixed a hanging query result fetch operation in the Hyper API when rows are consistently larger than 1 MB.
  • New Python sample file that shows how you can use the Hyper API to reduce the fragmentation of .hyper files. See Optimize Hyper File Storage and the defragment-data-of-existing-hyper-file sample on GitHub.

0.0.10899 [May 27, 2020]​

  • Hyper now fully supports the options FORCE_NULL and FORCE_NOT_NULL for CSV parsing. By default, only unquoted values are compared to the null string to determine whether they represent a NULL value. FORCE_NULL toggles the same for quoted values. FORCE_NOT_NULL disables comparison of non-quoted values with the null string. See COPY command.

  • Updated the target framework of the Hyper API for .NET example from .NET Core 2.2 to .NET Core 3.1. .NET Core 2.2 has already reached its end of life at 2019-12-23 and increasingly surfaced stability problems. We continue to target the .NET Standard 2.0 in the Hyper API for .NET.

  • IANA released version 2020a of the Time Zone Database. Hyper's time zone information is updated accordingly. Noteworthy changes:

    • Morocco springs forward on 2020-05-31, not 2020-05-24.
    • Canada's Yukon advanced to -07 year-round on 2020-03-08.
    • America/Nuuk was renamed from America/Godthab.

0.0.10622 [April 22, 2020]​

  • If you use the Hyper API and accidentally open a file that is not a Hyper file, you now see a more informative error message.

  • C++: Fixed a memory leak in the constructor of hyperapi::HyperProcess when an invalid parameter was supplied.

  • The Python Hyper API now exposes a __version__ attribute and thus supports PEP 396.

0.0.10309 [March 25, 2020]​

  • The Hyper API Inserter class now allows SQL expressions to compute or transform data on the fly during insertion.

  • The Hyper API Inserter class now allows inserting Well-Known-Text (WKT) into Geography columns. You can use the CAST expression to transform WKT data to the Geography type and provide WKT data as a string to the Inserter class. For more information, see Add Spatial Data to a Hyper File.

  • Documented the available settings that can be passed to the HyperProcess and Connection constructors. See Settings.

  • Exposed settings for the HyperProcess class that give control over the way Hyper communicates with its clients. See Connectivity Settings.

  • Exposed settings for the HyperProcess class that give control over its logging behavior. See Logging Settings.

  • Exposed settings for the Connection class that give control over date and time parsing. See Date and Time Settings.

  • The Hyper API no longer creates database files in the working directory. Instead, they are placed in a temporary directory. This makes it easier to use the Hyper API in write-protected working directories.

  • Deprecated the following settings for the HyperProcess class:

    • log-dir: Now called log_dir.

    • :restrict_database_directory: Not required since Hyper no longer creates database files in the working directory.

    • :database_directory: Not required since Hyper no longer creates database files in the working directory.

    • :log_file_size_limit: Now called log_file_size_limit.

    • :log_file_max_count: Now called log_file_max_count.

      The deprecated settings will continue to work for at least three releases. Afterwards, the deprecated settings will be removed.

  • The C++ HAPI now expects all settings (i.e., the keys and values of the parameters map passed to the constructor of HyperProcess and Connection) to be passed in UTF-8 encoding.

  • Improved loading time for Python: import tableauhyperapi now takes 100 milliseconds instead of 250 milliseconds.

  • Added the to_date function. See Data Type Formatting Functions.

0.0.10002 [February 26, 2020]​

  • Reduced memory consumption for INSERT: When inserting a large number of tuples using INSERT, Hyper API now uses less RAM. This is particularly important when copying large tables using INSERT INTO newtable SELECT * FROM oldtable.

  • Simplified installation requirements on Windows: The Hyper API no longer requires that you install the Microsoft Visual C++ Runtime Library separately.

  • Smaller packages: Thanks to improvements to our build processes and packaging, the package size was reduced. For example, the size of an unpacked Python installation went from 186 MB to 174 MB. The download size of a packed Python package was reduced from 49 MB to 46 MB.

  • Bug fix for VALUES clauses: In rare cases, Hyper evaluated a join against a LATERAL VALUES clause incorrectly, leading to crashes or incorrect results. With this release, Hyper now evaluates such VALUES clauses correctly.

  • Deprecations around the HyperExpection class: The following changes were done to simplify the interface of the HyperException class across languages. All of the deprecated functions can be replaced by their newly introduced alternatives. In general, these changes should only impact power users. For most use cases, we recommend using str(<exception>) (Python), getMessage() (Java), ToString() (C#) or what() (C++).

    • Python: message was deprecated in favor of main_message and hint_message was deprecated in favor of hint. Furthermore, context_id is now an instance of the ContextId class and no longer a plain integer.

    • Java: getErrorMessage was deprecated in favor of getMainMessage.

    • C#/.Net: The PrimaryMessage property was deprecated in favor of MainMessage.

    • C++: getHintMessage was deprecated in favor of getHint. getMessage was deprecated in favor of getMainMessage. Furthermore, HyperException::getCause now returns a optional<HyperException> instead of a HyperException. The method hasCause was deprecated.

      The old method names will stay unchanged and continue working for at least the next three releases of Hyper API. They will be removed at some point in future after that.

0.0.9746 [January 29, 2020]​

  • Improved time zone support. In particular, the TIMESTAMP WITH TIME ZONE (or TIMESTAMPTZ) type is now properly supported.

  • This release includes documentation for several SQL features, including:

  • The Tableau Hyper API no longer requires write access in the working directory.

  • Improved error handling and messages.

  • The Tableau Hyper API is available on the Python Package Index (PyPI). You can now install the Tableau Hyper API using the package installer, pip.

    pip install tableauhyperapi

    Or, if you previously installed the package.

    pip install --upgrade tableauhyperapi

    Linux installations require pip version 19.3 or newer. Note that pip versions 20.0 and 20.1 are not working because of issues with pip and not the Tableau Hyper API package.

  • Support for macOS 10.15 (Catalina). You can now install the Hyper API on computers running macOS 10.13 and later.

  • The HyperProcess (hyperd.exe) on Windows no longer opens a terminal window (Issue 1039998).

  • Hyper is now reusing space freed by DELETE (Issue 1056751). In a rolling-window scenario (where old data is deleted in bulk before appending new data), previous versions of the Tableau Hyper API would not re-use the deleted space, causing the .hyper file to grow. This problem is fixed with this release. In addition to the simple rolling window scenario, the fix also applies to other bulk deletion patterns.

  • UPDATE now supports multi-column subqueries in SET clauses. See UPDATE.

  • Standard-compliant natural join.

0.0.9273 [December 4, 2019]​

  • NuGet package for the Tableau Hyper API for .NET. You can now reference the Tableau Hyper API library from your project file as you would for other NuGet packages. See Install the Hyper API for .NET.

  • The Hyper API for Python now allows you to use pathlib.Path to specify the hyper_path when you start the HyperProcess. This is the path to the directory that contains the hyperd executable file.

  • Support added for the asterisk (*) in namespace-qualified column references. For example, you can select the columns from a table in a specified namespace using three-part names (schema_name.table_name.*).

    SELECT schema_name.table_name.*, schema_name2.table_name.* FROM schema_name.table_name, schema_name2.table_name ...

  • Support for quoted strings in CSV headers.

  • When Hyper is launched inside a container (for example, Docker), Hyper now respects the memory limits that are set for the container. Previously, Hyper would assume that full system memory was available.

  • Updated requirements. The Hyper API requires Microsoft Visual C++ Runtime Library version 19.15.26726 or later. You can download the library from Microsoft: Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019

0.0.8953 [October 30, 2019]​

  • Various bug fixes. See the Resolved Issues on the Hyper API Product Release and Download page.

  • Documentation updates to correct C++ installation instructions, platform support (macOS 10.15 not yet supported).

Changed in this release

  • In the Hyper API (Python), the name parameter in the TableDefinition method changed to table_name. If you use keyword arguments to define tables in the previous release of the Hyper API, you need to modify your code.

    For example, if you were creating a table called airports in the public namespace (schema), you would need to make the following change.

    Change:

    airports_table = TableDefinition(name=TableName( "public", "airports"), ...)

    To the following:

    airports_table = TableDefinition(table_name=TableName("public", "airports"), ... )

    Note, if you are using positional arguments, you can avoid this issue.

    airports_table = TableDefinition(TableName("public", "airports"), ...)

0.0.8707 [October 2019]​

The Hyper API replaces the Extract API 2.0 for building applications that create and update Tableau extract files (.hyper) for Tableau 10.5 and later. The Hyper API provides more capabilities and improved performance when compared to the previous API.

  • Use SQL statements to insert, read, update, and delete data in extract files

  • Copy data directly from CSV files

  • Create applications in Python, Java, C++, or .NET (C#)

  • Read data from .hyper files

  • Update data in existing .hyper files

  • Delete data from existing .hyper files

  • Drastic performance improvements for extract creation