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<sup>1</sup> In-Memory OLTP data size and columnstore segment cache are limited to the amount of memory specified by edition in the [Scale Limits](#Cross-BoxScaleLimits) section. The degree of parallelism (DOP) for [batch mode](../relational-databases/query-processing-architecture-guide.md#batch-mode-execution) operations is limited to 2 for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Standard edition and 1 for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Web and Express editions. This refers to columnstore indexes created over disk-based tables and memory-optimized tables.
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<sup>1</sup> Batch mode on rowstore only supports disk-based heaps and [B+ tree indexes](../relational-databases/sql-server-index-design-guide.md#index-basics). It doesn't support In-Memory OLTP tables, XML columns, or sparse column sets. The degree of parallelism (DOP) for [batch mode](../relational-databases/query-processing-architecture-guide.md#batch-mode-execution) operations is limited to `2` for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Standard edition and `1` for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Web and Express editions.
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<sup>2</sup> Aggregate pushdown, string predicate pushdown, and SIMD optimizations are [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Enterprise edition scalability enhancements. For more detail, see [What's new in columnstore indexes](../relational-databases/indexes/columnstore-indexes-what-s-new.md).
<sup>1</sup> In-Memory OLTP data size and columnstore segment cache are limited to the amount of memory specified by edition in the [Scale Limits](#scale-limits) section. The degree of parallelism (DOP) for [batch mode](../relational-databases/query-processing-architecture-guide.md#batch-mode-execution) operations is limited to 2 for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Standard edition and 1 for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Web and Express editions. This refers to columnstore indexes created over disk-based tables and memory-optimized tables.
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<sup>1</sup> Batch mode on rowstore only supports disk-based heaps and [B+ tree indexes](../relational-databases/sql-server-index-design-guide.md#index-basics). It doesn't support In-Memory OLTP tables, XML columns, or sparse column sets. The degree of parallelism (DOP) for [batch mode](../relational-databases/query-processing-architecture-guide.md#batch-mode-execution) operations is limited to `2` for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Standard edition and `1` for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Web and Express editions.
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<sup>2</sup> Aggregate pushdown, string predicate pushdown, and SIMD optimizations are [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Enterprise edition scalability enhancements. For more detail, see [What's new in columnstore indexes](../relational-databases/indexes/columnstore-indexes-what-s-new.md).
<sup>1</sup> In-Memory OLTP data size and columnstore segment cache are limited to the amount of memory specified by edition in the [Scale Limits](#scale-limits) section. The degree of parallelism (DOP) for [batch mode](../relational-databases/query-processing-architecture-guide.md#batch-mode-execution) operations is limited to 2 for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Standard edition and 1 for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Express edition.
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<sup>1</sup> Batch mode on rowstore only supports disk-based heaps and [B+ tree indexes](../relational-databases/sql-server-index-design-guide.md#index-basics). It doesn't support In-Memory OLTP tables, XML columns, or sparse column sets. The degree of parallelism (DOP) for [batch mode](../relational-databases/query-processing-architecture-guide.md#batch-mode-execution) operations is limited to `2` for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Standard edition, and `1` for [!INCLUDE [ssNoVersion](../includes/ssnoversion-md.md)] Express edition.
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