我们正在为一位客户运行 SQL Server 2019 CU12。不久前，我们开始遇到有线死锁，即单个进程在访问表变量时自身陷入死锁。
死锁报告示例
<deadlock>
<victim-list>
<victimProcess id="process2ae9f9f7468" />
</victim-list>
<process-list>
<process id="process2ae9f9f7468" taskpriority="0" logused="0" waitresource="OBJECT: 2:-1194094756:0 " waittime="110" ownerId="6978622122" transactionname="GetInitializedIMA" lasttranstarted="2021-09-15T21:46:44.243" XDES="0x2b4d9477be8" lockMode="Sch-S" schedulerid="3" kpid="10868" status="suspended" spid="102" sbid="0" ecid="0" priority="0" trancount="1" lastbatchstarted="2021-09-15T21:46:44.113" lastbatchcompleted="2021-09-15T21:46:44.113" lastattention="2021-09-15T21:46:15.777" clientapp=".Net SqlClient Data Provider" hostname="removed" hostpid="15900" loginname="removed" isolationlevel="read committed (2)" xactid="6978622078" currentdb="15" currentdbname="MigrationSubjects" lockTimeout="4294967295" clientoption1="673187936" clientoption2="128056">
<executionStack>
<frame procname="unknown" sqlhandle="0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000">unknown</frame>
</executionStack>
<inputbuf>
(@Ids [SubjectRegistry.Consolidation.IdTable] READONLY)
DELETE [reg].[HistoricalCompanyInfo] FROM [reg].[HistoricalCompanyInfo] t
INNER JOIN @Ids ids ON ids.Id = t.HistoricalCompanyInfoId
</inputbuf>
</process>
</process-list>
<resource-list>
<objectlock …