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Supervisión de tablas temporales con control de versiones del sistema con optimización para memoria

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Se aplica a: SQL Server 2016 (13.x) y versiones posteriores Azure SQL DatabaseAzure SQL Managed Instance

Puede utilizar las vistas existentes para realizar un seguimiento del consumo de memoria resumido y detallado para cada tabla optimizada para memoria con control de versiones del sistema.

Consumo de memoria detallado (dividido por tabla de almacenamiento provisional principal del historial interno y con control de versiones del sistema):

--Details of memory consumption
WITH InMemoryTemporalTables
AS
   (
      SELECT SCHEMA_NAME ( T1.schema_id ) AS TemporalTableSchema
         , T1.object_id AS TemporalTableObjectId
         , IT.object_id AS InternalTableObjectId
         , OBJECT_NAME ( IT.parent_object_id ) AS TemporalTableName
         , IT.Name AS InternalHistoryStagingName
      FROM sys.internal_tables IT
      JOIN sys.tables T1 ON IT.parent_object_id = T1.object_id
      WHERE T1.is_memory_optimized = 1 AND T1.temporal_type = 2
   )
SELECT
   TemporalTableSchema
   , T.TemporalTableName
   , T.InternalHistoryStagingName,
      CASE
         WHEN C.object_id = T.TemporalTableObjectId
         THEN 'Temporal Table Consumption'
         ELSE 'Internal Table Consumption'
         END ConsumedBy
   , C.*
FROM sys.dm_db_xtp_memory_consumers C
JOIN InMemoryTemporalTables T
   ON C.object_id = T.TemporalTableObjectId OR C.object_id = T.InternalTableObjectId
   WHERE T.TemporalTableSchema = 'dbo' AND T.TemporalTableName = 'FXCurrencyPairs'
;

Resumen del consumo de memoria (total para una tabla optimizada para memoria con control de versiones del sistema):

--Summary of memory consumption
WITH InMemoryTemporalTables
AS
   (
      SELECT SCHEMA_NAME ( T1.schema_id ) AS TemporalTableSchema
         , T1.object_id AS TemporalTableObjectId
         , IT.object_id AS InternalTableObjectId
         , OBJECT_NAME ( IT.parent_object_id ) AS TemporalTableName
         , IT.Name AS InternalHistoryStagingName
      FROM sys.internal_tables IT
      JOIN sys.tables T1 ON IT.parent_object_id = T1.object_id
      WHERE T1.is_memory_optimized = 1 AND T1.temporal_type = 2
   )
, DetailedConsumption
AS
(
   SELECT TemporalTableSchema
      , T.TemporalTableName
      , T.InternalHistoryStagingName
      , CASE
         WHEN C.object_id = T.TemporalTableObjectId
         THEN 'Temporal Table Consumption'
         ELSE 'Internal Table Consumption'
         END ConsumedBy
      , C.*
   FROM sys.dm_db_xtp_memory_consumers C
   JOIN InMemoryTemporalTables T
   ON C.object_id = T.TemporalTableObjectId OR C.object_id = T.InternalTableObjectId
)
SELECT TemporalTableSchema
   TemporalTableName
   , sum ( allocated_bytes ) AS allocated_bytes
   , sum ( used_bytes ) AS used_bytes
FROM DetailedConsumption
WHERE TemporalTableSchema = 'dbo' ANDTemporalTableName = 'FXCurrencyPairs'
GROUP BY TemporalTableSchema, TemporalTableName
;

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