31 марта 2020 года вышло четвёртое накопительное обновление SQL Server 2019 CU4. Build version: 15.0.4033.1. KB4548597.
Посмотреть можно здесь:
https://support.microsoft.com/en-us/help/4548597/cumulative-update-4-for-sql-server-2019
Исправления
| Bug Reference | KB article number | Description | Fix area | Platform |
|---|---|---|---|---|
| 13443390 | Adds new SERVERPROPERTY "IsBigDataCluster" to retrieve a boolean value that describes whether the instance is BDC or not. | Big Data Cluster (BDC) | All | |
| 13441894 | 4538581 | FIX: Scalar UDF Inlining issues in SQL Server 2019 | SQL Engine | All |
| 13411047 | 4552159 | FIX: Error occurs when you apply a security policy on PolyBase external table in SQL Server 2019 | SQL Engine | All |
| 13402700 | 4552205 | FIX: Error occurs when you try to create external table in PolyBase with database_default as collation in SQL Server 2019 | SQL Engine | All |
| 13414966 | 4538688 | FIX: Severe spinlock contention occurs in SQL Server 2019 | SQL Engine | All |
| 13445859 | Access violation error occurs when you cancel queries against Big Data Cluster (BDC) storage pool or any OPENROWSET query on an instance of SQL Server 2019. | SQL Engine | All | |
| 13407609 | 4538268 | FIX: "Expired BLOB handle" error occurs when cross-database transaction involves communication with MSDTC in SQL Server 2017 and 2019 | SQL performance | All |
| 13421861 | 4541096 | FIX: Access Violation occurs when you run query on computed columns in SQL Server | SQL performance | All |
| 13421852 | 4543027 | FIX: Parallel sampled filtered statistics may cause incorrect histogram scaling in SQL Server 2016 and 2019 | SQL performance | All |
| 13440147 | Starting from Cumulative Update 4 (CU4) for SQL Server 2019, when auditing DMVs and DBCC commands to get query optimization statistics and if sensitive data is revealed, the 'data_sensitivity_information' column of the audit record will be populated. | SQL security | All | |
| 13429199 | Improved error message is returned when you try to link the base and history tables on which data classification is already defined. | SQL security | All | |
| 13402561 | 4532432 | Mssql-conf tool fails if IPV6 is disabled on the Linux system | SQL Engine | Linux |
| 13357335 | Assume that the Format String Expression property of a Calculation Item from a Calculation Group is set. The performance degradation occurs when you run MDX queries generated by MDX based client tools and may also occur when MDX queries do not refer to the calculation item with Format String Expression set. However, the performance degradation is not so evident on equivalent DAX queries generated by Power BI Desktop visuals. | Analysis Services | Windows | |
| 13421880 | 4541300 | FIX: Fix incorrect values in auto seeding XEvents in SQL Server | High Availability | Windows |
| 13421858 | 4541303 | FIX: Non-yielding Scheduler error may occur with Always On availability group in Microsoft SQL Server | High Availability | Windows |
| 13421856 | 4541309 | FIX: Missing log block may occur when you use Always On availability group in SQL Server | High Availability | Windows |
| 13421865 | 4541724 | FIX: Intermittent non-yielding scheduler occurs when memory-optimized database running under heavy I/O activities in SQL Server 2016 and 2019 | In-Memory OLTP | Windows |
| 13417390 | In the Service Accounts interface of SQL Server Setup, password validation may fail if only username is entered before the correct password is entered. This failed validation may lock out the domain service account if you do this repeatedly and domain policy set to lock accounts after few unsuccessful attempts. | Setup & Install | Windows | |
| 13407610 | 4538365 | FIX: Change Tracking cleanup does not work when invalid cleanup and hardened cleanup version are negative in SQL Server 2017 and 2019 | SQL Engine | Windows |
| 13421889 | 4539815 | FIX: Access violation occurs when change tracking auto cleanup tries to clean up side tables in SQL Server | SQL Engine | Windows |
| 13421887 | 4540107 | FIX: System or background task may fail when number of sessions reaches the maximum limit in SQL Server 2016 and 2019 | SQL Engine | Windows |
| 13443768 | 4540121 | FIX: sp_execute_external_script doesn't run when you install SQL Server 2019 with Machine Learning Services and a customized Shared feature directory | SQL Engine | Windows |
| 13421916 | 4540342 | FIX: Non-yielding scheduler condition occurs with CONNECTION_MANAGER spinlock in SQL Server | SQL Engine | Windows |
| 13421902 | 4540903 | FIX: Non-yielding scheduler dump occurs in InterlockedCompareExchangePointer and SOS_RWLock in SQL Server 2016 and 2019 | SQL Engine | Windows |
| 13421876 | 4541435 | FIX: Error occurs when you rename a column on temporal current table in SQL Server | SQL Engine | Windows |
| 13421863 | 4541520 | FIX: Assertion occurs when you process a malformed XML message sent as message in Service Broker queue in SQL Server | SQL Engine | Windows |
| 13421900 | 4541762 | FIX: Management Data Warehouse Server Activity Collection Set may fail in SQL Server 2016 and 2019 | SQL Engine | Windows |
| 13421882 | 4541770 | FIX: Assertion failure occurs when persistent log buffer is used in SQL Server 2016 and 2019 | SQL Engine | Windows |
| 13404458 | 4548103 | FIX: Performance degradation occurs on PMEM devices with Hybrid Buffer Pool enabled in SQL Server 2019 | SQL Engine | Windows |
| 13376878 | When an application performs bulk copy operations and a subsequent select in the same transaction against a database with simple or bulk-logged recovery model, SQL Server Access Violations may occur and repeat until the service is restarted. | SQL Engine | Windows | |
| 13418869 | SQL Writer will add its version and log tracing parameters to the log header when the service starts. | SQL Engine | Windows | |
| 13431504 | Improves SQL Writer for better handling of COPY_ONLY backup messages in SQL Server 2019. | SQL Engine | Windows | |
| 13407603 | 4538497 | FIX: Slow query performance when using query predicates with UPPER, LOWER or RTRIM with default CE in SQL Server 2017 and 2019 | SQL performance | Windows |
| 13421869 | 4539880 | FIX: Access violation occurs with wait_info XEvent on busy SQL Server | SQL performance | Windows |
| 13421907 | 4540346 | FIX: MERGE statement fails with assert “Attempt to access expired blob handle (1)” in SQL Server 2016 and 2019 | SQL performance | Windows |
| 13421911 | 4540901 | FIX: SQL Server may terminate due to lock conflicts during error message processing in SQL Server 2016 and 2019 | SQL security | Windows |
