The installation of Microsoft SQL Server 2019 that uses the configuration file ignores the value for the ASCOLLATION parameter and falls back to the system default locale. Note You may see this issue when the number of logical processors is high (larger than 32), and the concurrency jobs are also very high.įIX: Installing SQL Server CUs may trigger IndexOutOfRangeException Unable to start execution of step 1 (reason: Error authenticating proxy, system error: The user name or password is incorrect.). Unable to start execution of step 1 (reason: Error authenticating proxy, system error: ConnGetProxyPassword). The Excel file also contains detailed fix lists for SQL Server 2019 and SQL Server 2017. Improvements and fixes included in this updateĪ downloadable Excel workbook that contains a summary list of builds, together with their current support lifecycle, is available. Microsoft is working on a fix for this issue that will be available in a future CU. To do this, use the following trace flags:ġ1042 - This trace flag disables the parallelism for built-in SESSION_CONTEXT.ĩ432 - This trace flag disables the fix introduced in SQL Server 2019 CU14. To mitigate this issue, you can disable the original fix, and disable the parallelism for built-in SESSION_CONTEXT to avoid wrong results. However, this fix could cause Access Violation dump files while resetting the SESSION for reuse. SQL Server 2019 CU14 introduced a fix to address wrong results in parallel plans returned by built-in SESSION_CONTEXT. This update contains 21 fixes that were issued after the release of SQL Server 2019 Cumulative Update 17, and it updates components in the following builds: This article describes Cumulative Update package 18 (CU18) for Microsoft SQL Server 2019. How to obtain or download this or the latest cumulative update package Improvements and fixes included in this update

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