MySQL Connector/Net Release Notes  /  Changes in MySQL Connector/Net 6.6  /  Changes in MySQL Connector/Net 6.6.7 (2014-11-11)

Changes in MySQL Connector/Net 6.6.7 (2014-11-11)

This is the final release of the 6.6.x branch.

Bugs Fixed

  • While MySqlDateTime.Millisecond already allowed a value between 0 and 999 (3 digit precision), a new MySqlDateTime.Microsecond property was added to handle microseconds (6 digit precision) on DateTime values. (Bug #20019257)

  • The fluent API DbModelBuilder.HasColumnType had no effect in Entity Framework 6. (Bug #19476922, Bug #19456229, Bug #19462808)

  • Setting a Primary Key GUID identity in "Code First" in Entity Framework 6 did not function with MySQL server 5.7. Inserting a row with a valid value for the GUID generated an error, even when it had a trigger set to the correct value.

    As a workaround, it was necessary to redeclare the column definition to accept a dummy default, such as "default ''". (Bug #19456452, Bug #19462811, Bug #19476995)

  • Non Primary Keys declared as "Identity GUID" did not have their GUID's automatically generated. (Bug #19456415, Bug #19461919, Bug #19477029)

  • Creating a "Model First" or "Database First" model using MySQL 5.7 would set ProviderManifestToken to 5.6. (Bug #19453814, Bug #19475012)

  • When using Entity Framework 4.3 Code first Identifiers for Migrations and Entity Framework 6, generated foreign key identifiers could be longer than 64 characters, causing MySQLException errors. The fix renames any too-long identifiers using the name format FK_guid, where guid is a global unique identifier generated at runtime. (Bug #19211564, Bug #19483128)

    References: This bug is a regression of Bug #67285.

  • When trying to alter a stored procedure or trigger that included references to session variables, an error occurred and the changes were not saved, unless "Allow User Variables=true" was set in the connection settings. An error is no longer generated, and similar issues with renaming stored procedures or triggers using Alter Routine were also fixed. (Bug #19211432)

  • In Visual Studio, Connector/Net did not read the millisecond portion of a time value for a field of type TIME(3). (Bug #19211409, Bug #18111085)

  • The MySQL parser did not recognize the full string literal syntax of [_charset_name]'string' [COLLATE collation_name] as supported by the MySQL Server. This fix makes Connector/Net and MySQL for Visual Studio recognize the string literal syntax as specified in the Character String Literal Character Set and Collation section of the MySQL Server manual. (Bug #19211249, Bug #18169145)

  • When the connection limit was exceeded, MySqlConnection.Open() would leave the TCP connections in a CLOSE_WAIT state, but now closes them. (Bug #18665388, Bug #72025)

  • When a client refreshed a web page associated with an expired session and if the ASP.NET project was using <SessionState ... regenerateExpiredSessionId="true" ...>, a "duplicate entry" exception was generated from the MySqlSessionProvider. (Bug #18657550, Bug #19783515, Bug #70409)

  • Entity Framework threw a NullReferenceException on insertion of a record into tables that had an auto-increment, unsigned, bigint primary key. (Bug #18189217, Bug #19211404, Bug #71242)

  • In Visual Studio, the stored procedure debugger did not evaluate the last_insert_id() function in a watch expression correctly. This fix also corrects similar issues for two other information functions that query the debug data table: row_count() and found_row(). (Bug #18111085)

  • When Connector/Net's SQL generator emitted code for the LINQ Union() or Concat() operator, parentheses were not applied around the individual SELECT statements. That could cause a change of meaning for the query when a Take() operator (thus a LIMIT clause in the SQL code) was applied to the last SELECT statement. With this fix, parentheses were put around individual SELECT statements, so that the LIMIT clause will not be applied to the entire result of the UNION operation. (Bug #18049691, Bug #19211182, Bug #19483110, Bug #70828)

  • The MySQL parser could not parse an if statement when there were any spaces before the parenthesis for the arguments (for example, if (1,1, 1)). Besides if, the same issue occurred for a number of other functions like row_count, ifnull, mod, repeat, and so on, and this fix corrects the problem for all of them. (Bug #17981407, Bug #19211240)

  • The value for the Keepalive option in the connection string was interpreted by Connector/Net to be in milliseconds. This fix makes it to be interpreted as number of seconds, as specified in the documentation. (Bug #17981275, Bug #19211293, Bug #69484)

  • A MySQL-session-state-enabled web application threw exceptions for referencing the wrong table name my_aspnet_Sessions (instead of the correct name my_aspnet_sessions). This was due to the incorrect case handling of the SQL queries for MySqlSessionStateStore. (Bug #17960855, Bug #19211384, Bug #69652)

  • The RenameColumn operation in an Entity Framework migration threw an Unknown column 'no' in the 'field list' error when Update-Database was applied. (Bug #17959787, Bug #71102)

  • In Visual Studio, Intellisense did not treat the keywords describe and desc as synonyms of explain. (Bug #17956087, Bug #19211401)

  • In Visual Studio, Intellisense showed views from all databases, instead of just the current one. (Bug #17954412, Bug #19211338)

  • Connector/Net did not add the AUTO_INCREMENT property to a primary key column of type BIGINT when creating a model in Entity Framework. (Bug #17924407, Bug #17937401, Bug #70602)

  • Millisecond values written to a TIME(6)-typed field of a database were wrongly serialized by Connector/Net. (Bug #17924388, Bug #70686)

  • Fractional part of a value read by MySqlDataReadeer.GetTimeSpan() from a TIME(3)-typed field was dropped. (Bug #17923814, Bug #70377)

  • Sometimes invoking the IntelliSense code completion (Control + J) on a MySQL file would emit an error. (Bug #17890216)

  • When opening or creating a .mysql file, trying to invoke Intellisense caused an error in some cases. (Bug #17890216)

  • Connector/Net threw a NullReferenceException when trying to save an entity into a table with a tinyint or bigint auto-incremented primary key. (Bug #17866076, Bug #70888)

  • Debugger failed to debug a routine correctly when it had two functions in a single expression. That was due to an error in handling the scope of the second function, which has been fixed. (Bug #17865915)

  • In Visual Studio, the debugger failed with parser errors when debugging stored procedures with a Leave statement. (Bug #17616344)

  • When debugging a stored routine in Visual Studio with the debugger, long identifiers caused the error "data too long for column 'pvarname'" to be thrown. That was because the SQL script of the debugger did not support the same lengths for identifier names as the MySQL server does. This fix matches the debugger with the MySQL server on the maximum lengths supported for identifier names. (Bug #17568158, Bug #70159)

  • When using the Code First approach in Entity Framework 5, a LINQ query that checked whether a nullable column was null resulted in a faulty SQL query being generated. (Bug #17285548, Bug #69922)

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