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October 2021

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MonetDB.Net on Nuget
by Sjoerd Mullender 27 Oct '21

27 Oct '21

The MonetDB team at MonetDB BV is pleased to announce the release of MonetDB.Net on NuGet: https://www.nuget.org/packages/MonetDB/ To install the package from within Visual Studio: Go to Tools -> NuGet Package Manager -> Package Manager Console -> Type: Install-Package MonetDB -Version 2.1.2 Or Tools -> NuGet Package Manager -> Manage NuGet Packages for Solution and search for MonetDB. -- Sjoerd Mullender

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Announcement: New Jul2021-SP1 Bugfix release of MonetDB suite
by Sjoerd Mullender 05 Oct '21

05 Oct '21

The MonetDB team at MonetDB BV is pleased to announce the Jul2021-SP1 bugfix release of the MonetDB suite of programs. More information about MonetDB can be found on our website at <https://www.monetdb.org/>. For details on this release, please see the release notes at <https://www.monetdb.org/Downloads/ReleaseNotes>. As usual, the download location is <https://www.monetdb.org/downloads/>. Jul2021-SP1 Bugfix Release (11.41.11) MonetDB Common * Some deadlock and race condition issues were fixed. * Handling of the list of free bats has been improved, leading to less thread contention. * A problem was fixed where the server wouldn't start with a message from BBPcheckbats about files being too small. The issue was not that the file was too small, but that BBPcheckbats was looking at the wrong file. * An issue was fixed where a "short read" error was produced when memory was getting tight. * When appending to a string bat, we made an optimization where the string heap was sometimes copied completely to avoid having to insert strings individually. This copying was still done too eagerly, so now the string heap is copied less frequently. In particular, when appending to an empty bat, the string heap is now not always copied whole. SQL Frontend * If the server has been idle for a while with no active clients, the write-ahead log is now rotated. * A problem was fixed where files belonging to bats that had been deleted internally were not cleaned up, leading to a growing database (dbfarm) directory. * A leak was fixed where extra bats were created but never cleaned up, each taking up several kilobytes of memory. * [This feature was already released in Jul2021 (11.41.5), but the ChangeLog was missing] Grant indirect privileges. With "GRANT SELECT ON <my_view> TO <another_user>" and "GRANT EXECUTE ON FUNCTION <my_func> TO <another_user>", one can grant access to "my_view" and "my_func" to another user who does not have access to the underlying database objects (e.g. tables, views) used in "my_view" and "my_func". The grantee will only be able to access data revealed by "my_view" or conduct operations provided by "my_func". * Improved error reporting in COPY INTO by giving the line number (starting with one) for the row in which an error was found. In particular, the sys.rejects() table now lists the line number of the CSV file on which the record started in which an error was found. Bug Fixes * 7140: SQL Query Plan Non Optimal with View * 7162: Extend sys.var_values table * 7165: `JOINIDX: missing '.'` when running distributed join query on merged remote tables * 7172: Unexpected query result with merge tables * 7173: If truncate is in transaction then after restart of MonetDB the table is empty * 7178: Remote Table Throws Error - createExceptionInternal: !ERROR: SQLException:RAstatement2:42000!The number of projections don't match between the generated plan and the expected one: 1 != 1200

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