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    <title>DEV Community: Aasawari Sahasrabuddhe</title>
    <description>The latest articles on DEV Community by Aasawari Sahasrabuddhe (@aasawari_sahasrabuddhe_c6).</description>
    <link>https://dev.to/aasawari_sahasrabuddhe_c6</link>
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      <title>[Boost]</title>
      <dc:creator>Aasawari Sahasrabuddhe</dc:creator>
      <pubDate>Tue, 06 Jan 2026 11:02:19 +0000</pubDate>
      <link>https://dev.to/aasawari_sahasrabuddhe_c6/-4lf4</link>
      <guid>https://dev.to/aasawari_sahasrabuddhe_c6/-4lf4</guid>
      <description>&lt;div class="ltag__link"&gt;
  &lt;a href="/singlestore-developer" class="ltag__link__link"&gt;
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      &lt;h2&gt;Elasticsearch vs. SingleStore: What’s Best for Your Data Needs?&lt;/h2&gt;
      &lt;h3&gt;Aasawari Sahasrabuddhe for SingleStore ・ Jan 6&lt;/h3&gt;
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</description>
      <category>elasticsearch</category>
      <category>singlestore</category>
      <category>data</category>
      <category>ai</category>
    </item>
    <item>
      <title>Elasticsearch vs. SingleStore: What’s Best for Your Data Needs?</title>
      <dc:creator>Aasawari Sahasrabuddhe</dc:creator>
      <pubDate>Tue, 06 Jan 2026 11:01:55 +0000</pubDate>
      <link>https://dev.to/singlestore-developer/elasticsearch-vs-singlestore-whats-best-for-your-data-needs-1l62</link>
      <guid>https://dev.to/singlestore-developer/elasticsearch-vs-singlestore-whats-best-for-your-data-needs-1l62</guid>
      <description>&lt;p&gt;It's a data-driven world, and anyone who is building or using applications expects lightning-fast, context-aware search experiences. That’s why Model Content Protocols (MCPs) and hybrid search arose. Whether users are hunting for a specific keyword like “dog food quality” or something more abstract like “Turkish delight,” behind the scenes, modern search systems need to deliver both precision and semantic depth, offering results that are not only accurate but also contextually relevant.&lt;/p&gt;

&lt;p&gt;In creating search-based applications, developers have typically relied on Elasticsearch, built on Apache Lucene. And Elasticsearch performed well, at least until data sizes grew exceptionally large and until developers needed  more than just full-text or vector search.In scenarios where hybrid needs blending with keyword search, vector similarity, and structured filters, the limitations of Elasticsearch begin to show.&lt;/p&gt;

&lt;p&gt;In a comparison of &lt;a href="https://www.singlestore.com/elasticsearch/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=elastic&amp;amp;utm_content=singlestoresearch" rel="noopener noreferrer"&gt;Elasticsearch vs. SingleStore&lt;/a&gt;, we noted that the architecture of Elasticsearch isn't designed for advanced analytics, real-time hybrid queries, or unified operations across structured and unstructured data, leading to scalability challenges, increased operational overhead, and fragmented architectures. &lt;/p&gt;

&lt;p&gt;In this blog, we’ll examine different scenarios on how SingleStore’s hybrid search capability reduces the limitations encountered and faced in ElasticSearch. We'll walk through a hands-on experience using a set of Amazon product reviews, share real code examples, and examine core queries, full-text, vector, and hybrid searches. &lt;/p&gt;

&lt;h2&gt;
  
  
  The tale of two architectures
&lt;/h2&gt;

&lt;h3&gt;
  
  
  The traditional search: Elasticsearch
&lt;/h3&gt;

&lt;p&gt;As we mentioned, Elastic is a proven search engine built on top of Apache Lucene. It uses inverted indexing structure for text and keyword matches. Apart from these features, Elastic is also great at: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;
&lt;strong&gt;Flexibility&lt;/strong&gt;: Each document stored as JSON; fields tokenized, analyzed. Flexible schema, but mapping complexity increases when introducing non-text fields.
&lt;/li&gt;
&lt;li&gt;
&lt;strong&gt;Performance&lt;/strong&gt;: To get good performance, many parts of Lucene's inverted indices and vector indices must be in memory or warm disk-caches. However, large datasets push cost in RAM/disk IO.
&lt;/li&gt;
&lt;li&gt;
&lt;strong&gt;Scalability&lt;/strong&gt;: Elasticsearch scales by horizontal sharding; replication ensures redundancy. But performance depends heavily on how shards, replicas, and node roles are configured.
&lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;However, even with all these features and characteristics, Elastic still suffers from performance degradations at various levels. &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Elasticsearch’s strongest game is keyword match and full text search, however, it starts to break down when you add SQL style joins, range filters and analytics. It often needs denormalized schemas or external pipelines.
&lt;/li&gt;
&lt;li&gt;Adding vector support in Elasticsearch means defining &lt;strong&gt;&lt;em&gt;dense_vector fields&lt;/em&gt;&lt;/strong&gt;, setting dimensions, similarity metric, indexing options, then ensuring documents are updated properly. This can create mapping mismatches that often lead to silent failures.
&lt;/li&gt;
&lt;li&gt;When data grows large, maintaining shards and replicas requires careful provisioning. And that means scaling to support heavy vector + filter + text workloads is nontrivial.
&lt;/li&gt;
&lt;li&gt;Elasticsearch often needs document refresh or index commit to make newly inserted/updated data visible for search. Embedding updates in particular tend to suffer from lag or non-visibility until refresh.&lt;/li&gt;
&lt;/ol&gt;

&lt;h3&gt;
  
  
  SingleStore: The modern era of search
&lt;/h3&gt;

&lt;p&gt;So how can developers counter such issues? Enter SingleStore. SingleStore reimagines search for the age of real-time data and AI by unifying text search, vector search, and structured SQL in a single database engine. SingleStore offers a high-performance architecture that simplifies development and scales seamlessly. &lt;/p&gt;

&lt;p&gt;Here’s how SingleStore bridges the gaps left by traditional search engines:&lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;SingleStore’s rowstore and column store capability lets you handle both fast point lookups and large analytics without the need for a separate system.
&lt;/li&gt;
&lt;li&gt;The vectors come with built in similarity functions, hence there is no need for separate mappings, dimensions setting or hidden pitfalls.
&lt;/li&gt;
&lt;li&gt;SingleStore extends standard SQL with full-text search (&lt;code&gt;MATCH ... AGAINST&lt;/code&gt;) and vector functions. This allows you to run hybrid queries that combine text search, vector similarity, joins, filters, and aggregations in a single SQL statement – thus eliminating the need for separate pipelines or re-ranking steps.
&lt;/li&gt;
&lt;li&gt;With no need for multiple tools, your infrastructure footprint is reduced. The results are faster, efficient and lower cost of ownership.
&lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;In summary, if you want real-time search that handles both vector and text,  plus filters, joins, and analytics,  SingleStore delivers what Elastic often can only approximate. In experiments to test vector + filters + embedding visibility, every time Elasticsearch failed (or required fiddling)  SingleStore handled it cleanly. That makes a big difference in developer time, reliability, and latency, especially when building production systems.&lt;/p&gt;

&lt;p&gt;In the following sections, we’ll examine these concepts with a real-world data set and understand how the two search capabilities differ. &lt;/p&gt;

&lt;h2&gt;
  
  
  Prerequisites
&lt;/h2&gt;

&lt;p&gt;In the example use case below, certain prerequisites will help you follow along: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Amazon Product Reviews dataset from &lt;a href="https://www.kaggle.com/datasets/arhamrumi/amazon-product-reviews" rel="noopener noreferrer"&gt;Kaggle&lt;/a&gt;. For this blog, we have used a smaller structure of the complete dataset for faster embeddings.
&lt;/li&gt;
&lt;li&gt;A SingleStore Helios account. You can create a free new workspace on Helios using the &lt;a href="https://portal.singlestore.com/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=elastic&amp;amp;utm_content=singlestoresearch" rel="noopener noreferrer"&gt;Helios signup page&lt;/a&gt;. Once set, you can load the dataset directly and then connect your &lt;a href="https://www.singlestore.com/blog/using-python-jupyter-notebook-with-singlestoredb/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=elastic&amp;amp;utm_content=singlestoresearch" rel="noopener noreferrer"&gt;Python application from Jupiter notebook&lt;/a&gt; directly on Helios. A &lt;strong&gt;single&lt;/strong&gt; place for all your &lt;strong&gt;storage&lt;/strong&gt;.
&lt;/li&gt;
&lt;li&gt;Once set up, you’ll have a table structure similar to this schema: &lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;&lt;a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fzlxv30ttr5jt028g6hp8.png" class="article-body-image-wrapper"&gt;&lt;img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fzlxv30ttr5jt028g6hp8.png" alt="Table structure" width="800" height="170"&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Now you’re ready to test the use case. &lt;/p&gt;

&lt;h2&gt;
  
  
  Search implementation
&lt;/h2&gt;

&lt;p&gt;To test the complete use case, we’ll perform three different kinds of search operations around approximately 10K of data. For this blog, we have tested, full-text search, vector search and hybrid search. &lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Full-text search&lt;/strong&gt; is a classic keyword or phrase search. This matches words in the query to words in documents using inverted indexes and BM25 scoring.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Vector search&lt;/strong&gt; is a semantic search powered by embeddings. Instead of exact keywords, it finds reviews with &lt;em&gt;similar meaning&lt;/em&gt; to the query.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Hybrid search&lt;/strong&gt; combines both approaches, blending keyword precision with semantic recall.&lt;/p&gt;

&lt;h3&gt;
  
  
  SingleStore implementation
&lt;/h3&gt;

&lt;p&gt;&lt;strong&gt;&lt;em&gt;Full-Text search:&lt;/em&gt;&lt;/strong&gt; finds reviews with exact or close word matches using MATCH … AGAINST.&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight python"&gt;&lt;code&gt;&lt;span class="c1"&gt;#%%
# ==========================================================
# 3. Full-Text Search
# ==========================================================
&lt;/span&gt;&lt;span class="k"&gt;def&lt;/span&gt; &lt;span class="nf"&gt;full_text_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;topk&lt;/span&gt;&lt;span class="o"&gt;=&lt;/span&gt;&lt;span class="mi"&gt;5&lt;/span&gt;&lt;span class="p"&gt;):&lt;/span&gt;
    &lt;span class="n"&gt;start&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="n"&gt;time&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;time&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
    &lt;span class="n"&gt;cur&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;execute&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"""&lt;/span&gt;&lt;span class="s"&gt;
        SELECT Id, Summary, MATCH(Text) AGAINST (%s) AS score
        FROM amazon_reviews
        WHERE MATCH(Text) AGAINST (%s)
        ORDER BY score DESC
        LIMIT %s
    &lt;/span&gt;&lt;span class="sh"&gt;"""&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;topk&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
    &lt;span class="n"&gt;results&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="n"&gt;cur&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;fetchall&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
    &lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sa"&gt;f&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;🔎 Full-text search in &lt;/span&gt;&lt;span class="si"&gt;{&lt;/span&gt;&lt;span class="n"&gt;time&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;time&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="o"&gt;-&lt;/span&gt; &lt;span class="n"&gt;start&lt;/span&gt;&lt;span class="si"&gt;:&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="mi"&gt;4&lt;/span&gt;&lt;span class="n"&gt;f&lt;/span&gt;&lt;span class="si"&gt;}&lt;/span&gt;&lt;span class="s"&gt; sec&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
    &lt;span class="k"&gt;return&lt;/span&gt; &lt;span class="n"&gt;results&lt;/span&gt;

&lt;span class="c1"&gt;# Example queries
&lt;/span&gt;&lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="nf"&gt;full_text_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;dog food&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
&lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="nf"&gt;full_text_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;cough medicine&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;&lt;strong&gt;Vector search&lt;/strong&gt; finds semantically similar reviews by computing dot product similarity between embeddings.&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight python"&gt;&lt;code&gt;&lt;span class="c1"&gt;# ==========================================================
# 4. Vector Search
# ==========================================================
&lt;/span&gt;&lt;span class="k"&gt;def&lt;/span&gt; &lt;span class="nf"&gt;vector_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;topk&lt;/span&gt;&lt;span class="o"&gt;=&lt;/span&gt;&lt;span class="mi"&gt;5&lt;/span&gt;&lt;span class="p"&gt;):&lt;/span&gt;
    &lt;span class="n"&gt;qvec&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="nf"&gt;embed&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
    &lt;span class="n"&gt;vec_json&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="nf"&gt;str&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;qvec&lt;/span&gt;&lt;span class="p"&gt;).&lt;/span&gt;&lt;span class="nf"&gt;replace&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"'"&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="sh"&gt;'"'&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;  &lt;span class="c1"&gt;# JSON array string
&lt;/span&gt;    &lt;span class="n"&gt;start&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="n"&gt;time&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;time&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
    &lt;span class="n"&gt;cur&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;execute&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"""&lt;/span&gt;&lt;span class="s"&gt;
        SELECT Id, Summary,
               DOT_PRODUCT(embedding, %s) AS score
        FROM amazon_reviews
        WHERE embedding IS NOT NULL
        ORDER BY score DESC
        LIMIT %s
    &lt;/span&gt;&lt;span class="sh"&gt;"""&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;vec_json&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;topk&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
    &lt;span class="n"&gt;results&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="n"&gt;cur&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;fetchall&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
    &lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sa"&gt;f&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;🔎 Vector search in &lt;/span&gt;&lt;span class="si"&gt;{&lt;/span&gt;&lt;span class="n"&gt;time&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;time&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="o"&gt;-&lt;/span&gt; &lt;span class="n"&gt;start&lt;/span&gt;&lt;span class="si"&gt;:&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="mi"&gt;4&lt;/span&gt;&lt;span class="n"&gt;f&lt;/span&gt;&lt;span class="si"&gt;}&lt;/span&gt;&lt;span class="s"&gt; sec&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
    &lt;span class="k"&gt;return&lt;/span&gt; &lt;span class="n"&gt;results&lt;/span&gt;

&lt;span class="c1"&gt;# Example queries
&lt;/span&gt;&lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="nf"&gt;vector_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;healthy pet food&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
&lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="nf"&gt;vector_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;candy&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;&lt;strong&gt;Hybrid search&lt;/strong&gt; blends text and vector scores in SQL, giving full control over weighting&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight python"&gt;&lt;code&gt; &lt;span class="k"&gt;def&lt;/span&gt; &lt;span class="nf"&gt;hybrid_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;topk&lt;/span&gt;&lt;span class="o"&gt;=&lt;/span&gt;&lt;span class="mi"&gt;5&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;text_weight&lt;/span&gt;&lt;span class="o"&gt;=&lt;/span&gt;&lt;span class="mf"&gt;0.5&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;vector_weight&lt;/span&gt;&lt;span class="o"&gt;=&lt;/span&gt;&lt;span class="mf"&gt;0.5&lt;/span&gt;&lt;span class="p"&gt;):&lt;/span&gt;
    &lt;span class="n"&gt;qvec&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="nf"&gt;embed&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
    &lt;span class="n"&gt;vec_json&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="nf"&gt;str&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;qvec&lt;/span&gt;&lt;span class="p"&gt;).&lt;/span&gt;&lt;span class="nf"&gt;replace&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"'"&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="sh"&gt;'"'&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
    &lt;span class="n"&gt;start&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="n"&gt;time&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;time&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
    &lt;span class="n"&gt;cur&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;execute&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sa"&gt;f&lt;/span&gt;&lt;span class="sh"&gt;"""&lt;/span&gt;&lt;span class="s"&gt;
        SELECT Id, Summary,
               COALESCE(MATCH(Text) AGAINST (%s), 0) AS text_score,
               COALESCE(DOT_PRODUCT(embedding, %s), 0) AS vector_score,
               (%s * COALESCE(MATCH(Text) AGAINST (%s), 0) +
                %s * COALESCE(DOT_PRODUCT(embedding, %s), 0)) AS hybrid_score
        FROM amazon_reviews
        WHERE embedding IS NOT NULL
        ORDER BY hybrid_score DESC
        LIMIT %s
    &lt;/span&gt;&lt;span class="sh"&gt;"""&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;vec_json&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;text_weight&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;query&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;vector_weight&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;vec_json&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;topk&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
    &lt;span class="n"&gt;results&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="n"&gt;cur&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;fetchall&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
    &lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sa"&gt;f&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;⚡ Hybrid search (fast) in &lt;/span&gt;&lt;span class="si"&gt;{&lt;/span&gt;&lt;span class="n"&gt;time&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;time&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="o"&gt;-&lt;/span&gt; &lt;span class="n"&gt;start&lt;/span&gt;&lt;span class="si"&gt;:&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="mi"&gt;4&lt;/span&gt;&lt;span class="n"&gt;f&lt;/span&gt;&lt;span class="si"&gt;}&lt;/span&gt;&lt;span class="s"&gt; sec&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
    &lt;span class="k"&gt;return&lt;/span&gt; &lt;span class="n"&gt;results&lt;/span&gt;

&lt;span class="c1"&gt;# Example
&lt;/span&gt;&lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="nf"&gt;hybrid_search&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="s"&gt;dog food&lt;/span&gt;&lt;span class="sh"&gt;"&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;Once these implementations are done, we can explore how performing search with similar keywords on SingleStore performs with better accuracy and efficiency. &lt;/p&gt;

&lt;h2&gt;
  
  
  Results and observations
&lt;/h2&gt;

&lt;p&gt;After running the above code with the same dataset and search queries, we observed consistent and significant improvements in the results with SingleStore. The table below outlines the performance across multiple runs on the same dataset.&lt;/p&gt;

&lt;div class="table-wrapper-paragraph"&gt;&lt;table&gt;
&lt;thead&gt;
&lt;tr&gt;
&lt;th&gt;Category&lt;/th&gt;
&lt;th&gt;Explanation&lt;/th&gt;
&lt;th&gt;Execution time&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;Full-text search&lt;/td&gt;
&lt;td&gt;More precise results, simpler query.&lt;/td&gt;
&lt;td&gt;Execution time in test: &lt;strong&gt;0.38s.&lt;/strong&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;Vector search&lt;/td&gt;
&lt;td&gt;Native vector column and built-in similarity.&lt;/td&gt;
&lt;td&gt;Execution time in test: &lt;strong&gt;0.37s&lt;/strong&gt;.&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;Hybrid search&lt;/td&gt;
&lt;td&gt;Clear, tunable, supports normalization.&lt;/td&gt;
&lt;td&gt;Execution time in test: &lt;strong&gt;0.35s&lt;/strong&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;&lt;/div&gt;

&lt;h3&gt;
  
  
  Observations
&lt;/h3&gt;

&lt;ul&gt;
&lt;li&gt;Unlike engines that may vary the results depending on refresh cycles or index updates, SingleStore returned consistent rankings across repeated queries.
&lt;/li&gt;
&lt;li&gt;Even when we scaled the dataset from ~10K to ~100K records, execution times remained under a second, showing linear scaling without complex tuning.
&lt;/li&gt;
&lt;li&gt;All three search types were expressed in straightforward SQL. No custom DSL, schema tweaks, or refresh calls were required.
&lt;/li&gt;
&lt;li&gt;By adjusting weights in SQL (e.g., 0.7*vector_score + 0.3*text_score), we can tune the balance between semantic and keyword relevance with full transparency.
&lt;/li&gt;
&lt;li&gt;Newly inserted rows were immediately searchable in both full-text and vector queries without needing manual refreshes or re-indexing.
&lt;/li&gt;
&lt;li&gt;Because text, vector, and hybrid search all run inside the same engine, there’s no need for multiple pipelines or extra services, reducing infra overhead.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;These results demonstrate  that while Elasticsearch is still a strong keyword search engine, SingleStore delivers a unified, real-time, and lower-latency platform for modern hybrid search. &lt;/p&gt;

&lt;h2&gt;
  
  
  A real-world example: Why SingleStore wins
&lt;/h2&gt;

&lt;p&gt;A customer faced rapid growth where thousands of publications and customers started to add hundreds of titles. Their existing stack, with plans to add Elastic, wasn’t working well. They started to face issues like:&lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Poor search performance.
&lt;/li&gt;
&lt;li&gt;Infrastructure limitations
&lt;/li&gt;
&lt;li&gt;Scaling and unpredictable cost limits.&lt;/li&gt;
&lt;/ol&gt;

&lt;h3&gt;
  
  
  Why SingleStore was a better choice
&lt;/h3&gt;

&lt;p&gt;With SingleStore, the above issues were easily addressed, because ingleStore unifies transactional and analytic workloads and supports search use cases without adding separate systems.&lt;br&gt;&lt;br&gt;
With SingleStore, the customer&lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Experienced dramatic gains in speed and accuracy (up to 70x)
&lt;/li&gt;
&lt;li&gt;Was able to process millions of rows and sustain ~120K queries per minute for real-time workloads
&lt;/li&gt;
&lt;li&gt;Enjoyed up to 35% acceleration in analytics/dashboard performance
&lt;/li&gt;
&lt;li&gt;Lowered their cost and operational overhead. &lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;The customer summed it up as follows: “SingleStore will seriously decrease our infrastructure complexity, allowing us to move faster and with more confidence. This all started with search, but now it's far bigger than that.” &lt;/p&gt;

&lt;p&gt;This real-world story matches what we observed in our 10K experiment: SingleStore provided faster, more consistent full-text, vector and hybrid queries, and a simpler developer experience.&lt;br&gt;&lt;br&gt;
Where Elasticsearch required DSL gymnastics, mappings, refresh calls and script scoring, SingleStore enabled the customer to  express hybrid search and normalization directly in one SQL query and get immediate, reproducible results.&lt;/p&gt;

&lt;p&gt;When searching in your application is only one piece of a broader real-time data problem, SingleStore is a great solution.&lt;/p&gt;

&lt;h2&gt;
  
  
  Conclusion
&lt;/h2&gt;

&lt;p&gt;By bringing vectors, full-text and SQL all together in one engine, SingleStore. makes hybrid queries simple, fast, and consistent. This helps in lowering engineering overheads and makes product behavior predictable. &lt;/p&gt;

&lt;p&gt;If you’re looking for search that’s semantic, precise, and real-time and you’d rather express that logic in SQL than stitch together multiple services, SingleStore is worth a short proof-of-concept. &lt;/p&gt;

&lt;p&gt;To learn more about SingleStore, visit our &lt;a href="https://docs.singlestore.com/db/v8.9/introduction/singlestore-documentation/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=elastic&amp;amp;utm_content=singlestoresearch" rel="noopener noreferrer"&gt;official documentation&lt;/a&gt;. You can also register for a &lt;a href="https://www.singlestore.com/events/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=elastic&amp;amp;utm_content=singlestoresearch" rel="noopener noreferrer"&gt;SingleStore webinar&lt;/a&gt; and learn about the latest concepts and technologies through hands-on experience. &lt;/p&gt;

</description>
      <category>elasticsearch</category>
      <category>singlestore</category>
      <category>data</category>
      <category>ai</category>
    </item>
    <item>
      <title>Choosing Rowstore or Columnstore? How to Pick the Right Engine for Your Workload</title>
      <dc:creator>Aasawari Sahasrabuddhe</dc:creator>
      <pubDate>Mon, 29 Dec 2025 06:30:00 +0000</pubDate>
      <link>https://dev.to/singlestore-developer/choosing-rowstore-or-columnstore-how-to-pick-the-right-engine-for-your-workload-b4d</link>
      <guid>https://dev.to/singlestore-developer/choosing-rowstore-or-columnstore-how-to-pick-the-right-engine-for-your-workload-b4d</guid>
      <description>&lt;p&gt;Modern day workloads must balance the conflicting demands of the application. The applications are required to have milliseconds of latency in transactional operations, efficient analytical workloads across massive data, and the data flexibility demanded by AI/ML workloads. Traditional architectures force a binary choice between rowstore and columnstore storage formats, each optimized for fundamentally different access patterns. &lt;/p&gt;

&lt;p&gt;This guide explores the architectural characteristics of each engine, provides decision criteria for selecting the right format for the workload, and demonstrates how unified storage architectures. This blog further demonstrates how SingleStore Helios examine transactional workloads, analytical scenarios, and the emerging requirements of AI-driven applications. &lt;/p&gt;

&lt;h2&gt;
  
  
  What is RowStore Storage?
&lt;/h2&gt;

&lt;p&gt;A rowstore in storage refers to a storage format that stores data in rows with all the fields of a row stored together in the same physical location. These are in-memory storages which store data inside RAM rather than disk. This means that each row contains all columns for a single record, stored contiguously in memory or disk.This avoids disk I/O and significantly speeds up data access and manipulation. &lt;/p&gt;

&lt;h2&gt;
  
  
  How does a rowstore work?
&lt;/h2&gt;

&lt;p&gt;A rowstore stores the data onto the memory by rows, which means, when you insert a record with 50 columns, all 50 columns are written together to the same memory location. Subsequent queries that need multiple columns from a single row retrieve them efficiently because they're co-located. &lt;/p&gt;

&lt;h2&gt;
  
  
  Where are the Rowstores efficient?
&lt;/h2&gt;

&lt;p&gt;The key advantages that makes the rowstore efficient are: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Ultra-low latency queries: Row-based storage retrieves an entire record in a single memory access, enabling extremely fast lookups. Indexed queries typically return within 100–500 microseconds.
&lt;/li&gt;
&lt;li&gt;High-throughput writes: rowstore supports lock-free concurrency, allowing 500K+ inserts per second per node without blocking read operations.
&lt;/li&gt;
&lt;li&gt;Strong transactional consistency: ACID guarantees are built into the rowstore architecture. Multi-statement transactions maintain consistency across related updates without requiring complex coordination.
&lt;/li&gt;
&lt;li&gt;Optimized for full-row access: Queries that need most or all columns execute with minimal data movement. For example, selecting 40 out of 50 columns touches almost the same memory footprint as selecting all 50.
&lt;/li&gt;
&lt;li&gt;Highly effective indexing: B-tree and hash indexes on primary and foreign keys deliver predictable, sub-millisecond lookup performance, even at large scale.&lt;/li&gt;
&lt;/ol&gt;

&lt;h2&gt;
  
  
  Where are rowstore storages proved to be efficient?
&lt;/h2&gt;

&lt;p&gt;Rowstore excels in workloads where speed, transactional integrity, and frequent point lookups are critical. It is particularly efficient in:&lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Transactional heavy workloads like applications such as banking, payments, e-commerce and user profiles that depend on rapid inserts, updates and precise data retrieval.
&lt;/li&gt;
&lt;li&gt;Use cases that require instant decisioning like fraud detection, personalization engines, session management benefit from rowstore’s ability to fetch full records with minimal overhead.
&lt;/li&gt;
&lt;li&gt;Operational tables with wide schemas where customer profiles, product catalogs, configurations perform exceptionally well because rowstore minimizes memory movement when returning full rows.
&lt;/li&gt;
&lt;li&gt;Writing heavy applications like IoT ingestion, event logging, telemetry, or status tracking pipelines helps inserting at rapid speed. &lt;/li&gt;
&lt;/ol&gt;

&lt;h2&gt;
  
  
  How to create RowStore tables in SingleStore
&lt;/h2&gt;

&lt;p&gt;Starting with SingleStore version 7.3, rowstore has &lt;strong&gt;not&lt;/strong&gt; been the default table storage format. To create a rowstore table explicitly in SingleStore helios,&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight sql"&gt;&lt;code&gt;&lt;span class="k"&gt;CREATE&lt;/span&gt; &lt;span class="k"&gt;row&lt;/span&gt; &lt;span class="n"&gt;store&lt;/span&gt; &lt;span class="k"&gt;TABLE&lt;/span&gt; &lt;span class="n"&gt;product_details&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;
     &lt;span class="n"&gt;ProductId&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;Color&lt;/span&gt; &lt;span class="nb"&gt;VARCHAR&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="mi"&gt;10&lt;/span&gt;&lt;span class="p"&gt;),&lt;/span&gt;
     &lt;span class="n"&gt;Price&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;dt&lt;/span&gt; &lt;span class="nb"&gt;DATETIME&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="k"&gt;KEY&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;Price&lt;/span&gt;&lt;span class="p"&gt;),&lt;/span&gt;
     &lt;span class="n"&gt;SHARD&lt;/span&gt; &lt;span class="k"&gt;KEY&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;ProductId&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
&lt;span class="p"&gt;);&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;In the above command, the shard key controls how the data is distributed in memory. The &lt;em&gt;KEY&lt;/em&gt; specified on Price causes an index to be created on the Price column.&lt;/p&gt;

&lt;p&gt;It is also possible to randomly distribute data by either omitting the shard key, or defining an empty shard key SHARD KEY(), as long as no primary key is defined. Example:&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight sql"&gt;&lt;code&gt;&lt;span class="k"&gt;CREATE&lt;/span&gt; &lt;span class="n"&gt;ROWSTORE&lt;/span&gt; &lt;span class="k"&gt;TABLE&lt;/span&gt; &lt;span class="n"&gt;products&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;
     &lt;span class="n"&gt;ProductId&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;Color&lt;/span&gt; &lt;span class="nb"&gt;VARCHAR&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="mi"&gt;10&lt;/span&gt;&lt;span class="p"&gt;),&lt;/span&gt;
     &lt;span class="n"&gt;Price&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;dt&lt;/span&gt; &lt;span class="nb"&gt;DATETIME&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="k"&gt;KEY&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;Price&lt;/span&gt;&lt;span class="p"&gt;),&lt;/span&gt;
     &lt;span class="n"&gt;SHARD&lt;/span&gt; &lt;span class="k"&gt;KEY&lt;/span&gt; &lt;span class="p"&gt;()&lt;/span&gt;
&lt;span class="p"&gt;);&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;h2&gt;
  
  
  Drawbacks of RowStore
&lt;/h2&gt;

&lt;p&gt;While row store works best for transactional and write heavy workloads, it is perhaps not the first choice of storage for analytics heavy or scan heavy applications. It becomes less efficient in scenarios like: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Large scale analytical workloads: For queries that require scanning millions or billions of rows such as aggregations, trends, reporting, and dashboards perform significantly slower on rowstore.
&lt;/li&gt;
&lt;li&gt;Compressed data storage: row store stores data row-by-row, which limits compression opportunities. For workloads where storage footprint matters, columnstore is more efficient due to better compression ratios.
&lt;/li&gt;
&lt;li&gt;Complex analytics: For queries that involve large joins, group-bys, window functions, and CPU-heavy analytical operations, columnstore’s vectorized engine provides superior performance.&lt;/li&gt;
&lt;/ol&gt;

&lt;h2&gt;
  
  
  What is ColumnStore Storage?
&lt;/h2&gt;

&lt;p&gt;While we have seen where rowstores do not perform the best, column stores are certainly the best choice for such workloads. A columnstore organises data by columns. All values for a single column are stored together, separate from other columns.&lt;/p&gt;

&lt;p&gt;Also known as the universal storage, SingleStore makes columnsstore the default table type in SingleStore Helios.&lt;/p&gt;

&lt;h2&gt;
  
  
  How does ColumnStore work ?
&lt;/h2&gt;

&lt;p&gt;Briefly, when you insert records with 50 columns, the columnstore stores all values of column_1 together, all values of column_2 together, and so on. Column values are compressed and indexed separately. &lt;/p&gt;

&lt;p&gt;The SingleStore Helios columnstore is an optimized storage format designed for fast analytics, efficient compression, and scalable performance. It organizes data by columns rather than rows, but includes several structures that improve both analytical and transactional workloads.&lt;/p&gt;

&lt;h3&gt;
  
  
  The Clustered Columnstore Index: The Core Storage Engine
&lt;/h3&gt;

&lt;p&gt;In SingleStore Helios, a table stored as a clustered columnstore index becomes the primary storage representation of the table. Unlike traditional databases that separate data storage from indexing, SingleStore makes the columnstore index the table itself.&lt;br&gt;&lt;br&gt;
This design minimizes overhead and ensures that analytics workloads operate directly on compressed, column-oriented data.&lt;/p&gt;
&lt;h3&gt;
  
  
  Sort Keys: The Most Important Optimization Choice
&lt;/h3&gt;

&lt;p&gt;When you define a columnstore index, you choose one or more sort key columns. These columns determine the physical sorting of data inside the columnstore.&lt;br&gt;&lt;br&gt;
Choosing the right sort key is critical because:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;It maximizes segment elimination, allowing the engine to skip irrelevant data ranges.
&lt;/li&gt;
&lt;li&gt;It improves range queries, JOIN performance, and filter pushdown.
&lt;/li&gt;
&lt;li&gt;It reduces CPU work during large analytical scans.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;In practice, users often sort by columns such as timestamp, price, or user_id, depending on the dominant access patterns.&lt;/p&gt;
&lt;h3&gt;
  
  
  Row Segments: Large Blocks of Logically Grouped Rows
&lt;/h3&gt;

&lt;p&gt;A columnstore table is internally divided into row segments, each typically containing hundreds of thousands of rows. Each row segment includes:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;The row count
&lt;/li&gt;
&lt;li&gt;A deleted-row bitmask for transactional updates
&lt;/li&gt;
&lt;li&gt;A set of column segments, one per column&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;This segmentation is fundamental for parallel execution and distributed query performance.&lt;/p&gt;
&lt;h3&gt;
  
  
  Column Segments: The True Unit of Storage
&lt;/h3&gt;

&lt;p&gt;Each row segment contains a column segment for every column in the table.&lt;br&gt;&lt;br&gt;
A column segment stores:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;All values for that column within the segment
&lt;/li&gt;
&lt;li&gt;Metadata such as minimum and maximum values
&lt;/li&gt;
&lt;li&gt;Compression-optimized encoding&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;The min/max metadata enables segment elimination, one of the biggest performance levers. During a query, if a filter cannot possibly match a segment's value range, the system skips that entire block.&lt;/p&gt;

&lt;p&gt;This is why SingleStore can scan billions of rows extremely fast and avoids scanning most of them.&lt;/p&gt;
&lt;h3&gt;
  
  
  Column Groups: Faster Lookups Without RowStore Overhead
&lt;/h3&gt;

&lt;p&gt;SingleStore also supports column groups, an optional structure that materializes full rows in a compact, index-like layout.&lt;br&gt;&lt;br&gt;
 Column groups improve:&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;Point lookups
&lt;/li&gt;
&lt;li&gt;Full-row access patterns
&lt;/li&gt;
&lt;li&gt;Update throughput&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Because column groups consume far less memory than row store tables, they provide row-like access performance while keeping the table in columnar form.&lt;br&gt;&lt;br&gt;
This eliminates the need to manage duplicated row store/columnstore architectures.&lt;/p&gt;
&lt;h3&gt;
  
  
  Sorted Row Segment Groups: Maintaining Ordered Ranges
&lt;/h3&gt;

&lt;p&gt;Row segments are grouped into sorted row segment groups, where each group contains non-overlapping ranges of the sort key. More segment groups means more comparison work at query time. These groups grow over time as INSERT, LOAD, and UPDATE operations add new segments.&lt;/p&gt;

&lt;p&gt;Managing segment group count is a key part of maintaining long-term performance, and SingleStore provides tools like OPTIMIZE TABLE to merge and rebalance these segments. &lt;/p&gt;
&lt;h2&gt;
  
  
  Where does ColumnStore work best?
&lt;/h2&gt;

&lt;p&gt;While we have seen how a rowstore storage system fails in certain scenarios, columnStore storage type is the one that outshines in those use cases. Some of the use cases where ColumnStore is considered as the first choice are: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;ColumnStore stores identical or similar values together and enables compression algorithms to achieve 10:1 to 100:1 reduction, thus giving a high compression ratio, lower storage and faster scans.
&lt;/li&gt;
&lt;li&gt;ColumnStore storage types are best for high analytical workloads. They reduce I/O dramatically and enable sub-second scans on billions of rows.
&lt;/li&gt;
&lt;li&gt;Column-native formats allow CPUs to process many values in a single instruction. This leads to higher throughput, better performance and AI driven analytics.
&lt;/li&gt;
&lt;li&gt;Aggregation operations used in analytics become simpler and significantly faster as the engine operates on compressed blocks, storage ranges and single columns vectors.
&lt;/li&gt;
&lt;li&gt;They avoid row level locks thus larger scans do not block the lightweight OLTP operations.
&lt;/li&gt;
&lt;li&gt;Columnstores distribute column segments efficiently across nodes, enabling applications to scale seamlessly while supporting high ingestion throughput and parallel execution. This helps the cloud native applications reply on SingleStore. &lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;A columnstore delivers lightning-fast analytics, high compression, efficient scans, and scalable performance by storing data column-by-column instead of row-by-row making it the preferred architecture for real-time analytics, AI workloads, and modern data-intensive applications.&lt;/p&gt;
&lt;h2&gt;
  
  
  How to create a ColumnStore table in SingleStore ?
&lt;/h2&gt;

&lt;p&gt;The default table type in SingleStore is columnstore. The default can be changed to row store by updating the default_table_type engine variable to rowstore. To create a columnstore table in Helios,&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight sql"&gt;&lt;code&gt;&lt;span class="k"&gt;CREATE&lt;/span&gt; &lt;span class="k"&gt;TABLE&lt;/span&gt; &lt;span class="n"&gt;products&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;
     &lt;span class="n"&gt;ProductId&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;Color&lt;/span&gt; &lt;span class="nb"&gt;VARCHAR&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="mi"&gt;10&lt;/span&gt;&lt;span class="p"&gt;),&lt;/span&gt;
     &lt;span class="n"&gt;Price&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;Qty&lt;/span&gt; &lt;span class="nb"&gt;INT&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt;
     &lt;span class="n"&gt;SORT&lt;/span&gt; &lt;span class="k"&gt;KEY&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;Price&lt;/span&gt;&lt;span class="p"&gt;),&lt;/span&gt;
     &lt;span class="n"&gt;SHARD&lt;/span&gt; &lt;span class="k"&gt;KEY&lt;/span&gt; &lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;ProductId&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
&lt;span class="p"&gt;);&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;The SHARD KEY controls the data distribution. In the above case, the productId is the SHARD KEY since sharding on a high cardinality identifier column generally allows for a more even distribution and prevents skew.&lt;/p&gt;

&lt;h2&gt;
  
  
  Use cases when columnstore does not perform well
&lt;/h2&gt;

&lt;p&gt;As said in row store cases, there are use cases and scenarios when columnstore tend to perform poorly. Some of these are: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Application involving heavy writes, updates and detest. Using column stores in these cases could tend to be expensive and utilize more memory.
&lt;/li&gt;
&lt;li&gt;For transactional systems that need to retrieve entire rows frequently or perform many small, random lookups, columnstore is inefficient.
&lt;/li&gt;
&lt;li&gt;Columnstore tends to perform poorly with smaller tables.
&lt;/li&gt;
&lt;li&gt;Updating or deleting specific rows is particularly inefficient since the database must locate data scattered across multiple column segments rather than accessing a single row location.&lt;/li&gt;
&lt;/ol&gt;

&lt;h2&gt;
  
  
  Difference between RowStore and ColumnStore
&lt;/h2&gt;

&lt;p&gt;Selecting the right storage engine depends entirely on workload access patterns. Row store is purpose-built for transactional workloads that demand microsecond latency, rapid inserts, and full-row access. Columnstore, on the other hand, is optimized for analytical workloads where compression, fast scans, and parallel execution matter most. The table below outlines the fundamental differences to help you choose the right engine for each use case.&lt;/p&gt;

&lt;div class="table-wrapper-paragraph"&gt;&lt;table&gt;
&lt;thead&gt;
&lt;tr&gt;
&lt;th&gt;Dimensions&lt;/th&gt;
&lt;th&gt;Rowstore&lt;/th&gt;
&lt;th&gt;Columnstore&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;How data is stored&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Data stored column-by-column; values of each column grouped and compressed&lt;/td&gt;
&lt;td&gt;Data stored column-by-column; values of each column grouped and compressed&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Primary Strength&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Ultra-low latency lookups, fast writes, strong transactional consistency&lt;/td&gt;
&lt;td&gt;High compression, fast analytics, scalable parallel scans&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Latency Characteristics&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Microsecond-level lookups&lt;/td&gt;
&lt;td&gt;Sub-second scans on billions of rows due to segment elimination&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Write Performance&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Extremely high ingestion (500K+ inserts/sec/node), lock-free concurrency&lt;/td&gt;
&lt;td&gt;High ingestion but optimized more for read-heavy analytics&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Query Pattern efficiency&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Best for queries retrieving many columns from a single row&lt;/td&gt;
&lt;td&gt;Best for queries retrieving few columns across many rows&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Scalability&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Vertical scaling; memory-bound due to in-RAM structure&lt;/td&gt;
&lt;td&gt;Horizontal scaling; segments distributed across nodes for parallel execution&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Concurrency&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Ideal for mixed read/write workloads with row-level operations&lt;/td&gt;
&lt;td&gt;Avoids row-level locks; large scans run without blocking OLTP&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Analytical Performance&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Slower for large scans, joins, group-bys, window functions&lt;/td&gt;
&lt;td&gt;Optimized for vectorized execution and analytical operations&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Storage footprint&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Larger footprint due to limited compression&lt;/td&gt;
&lt;td&gt;Much smaller due to columnar compression algorithms&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&lt;strong&gt;Use cases&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Banking, payments, personalization, fraud detection, IoT ingestion, operational tables&lt;/td&gt;
&lt;td&gt;Real-time analytics, log processing, BI dashboards, feature stores, AI workloads&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;&lt;/div&gt;

&lt;h2&gt;
  
  
  Choosing the right datastore for AI workloads
&lt;/h2&gt;

&lt;p&gt;In general, row stores excel at OLTP-like AI workloads: real-time inference, streaming feature updates and low-latency lookups of individual records. They can handle high inserts, give uniform milliseconds response for single key queries. Whereas Columnstores excel at OLAP-like workloads: scanning large feature tables, batch training data preparation, analytics dashboards and vector similarity search. They offer much higher compression, throughput and scalability when queries touch many rows or only a few columns of wide tables.&lt;/p&gt;

&lt;p&gt;A common pattern is to use both: keep hot, indexed data in a row-oriented store for speed, and archive or analyze large datasets in a columnar store for efficiency. Modern hybrid systems (e.g. SingleStore Helios) try to unify these, automatically routing transactions into a row buffer and compressing cold data column-wise, or letting you define materialized column groups to cover full-row queries. Ultimately, the right choice depends on your AI workload’s access pattern: if it’s mostly random key/value lookups and updates, lean rowstore; if it’s heavy scans, aggregations, or vector math over millions of rows, lean columnstore.&lt;/p&gt;

&lt;p&gt;By matching the storage engine to the workload’s profile, point lookups vs. wide scans, update-heavy vs. read-heavy, data architects can optimize latency, cost, and scalability for AI applications. Let us understand this with a few AI workloads example: &lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;
&lt;strong&gt;Real-Time Inference&lt;/strong&gt;: Applications like fraud detection, building recommendation systems, personalisation engines etc, demand a low latency lookups. These workloads are typically point queries like “get user profile features for this transaction”, which favors row-oriented storage. A &lt;strong&gt;row store&lt;/strong&gt; would excel at random reads and writes, fetching an entire record with minimal latency.
&lt;/li&gt;
&lt;li&gt;
&lt;strong&gt;Feature Engineerings&lt;/strong&gt;: Feature engineering and feature-store workloads span both large-scale analytics and low-latency lookups. Offline feature computation (joining logs, aggregating historical data) is a classic OLAP task, whereas serving features to live models is OLTP. In this case, columnstore would provide a very high throughput on analytics queries , with tolerable latency. For online feature lookup, a row store is still used to serve low-latency point queries.
&lt;/li&gt;
&lt;li&gt;
&lt;strong&gt;Training on large datasets:&lt;/strong&gt; For model training workloads that involve reading large volumes of feature data, a columnstore is recommended. It efficiently reads only the required columns and leverages compression to optimize storage and scan performance.
&lt;/li&gt;
&lt;li&gt;
&lt;strong&gt;Vector Search / Embedding Retrieval&lt;/strong&gt;: Specialized vector store or columnstore with ANN index. Similarity search operates on high-dimensional embedding vectors. Columnar formats can help by storing the entire vector contiguously as a column, so queries read only the embedding column. &lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;However, it is important to note that these recommendations are not one-size-fits-all solutions. Choosing the right storage engine ultimately depends on your specific workload characteristics, performance goals, infrastructure constraints, and cost considerations. Readers are encouraged to evaluate based on real-world access patterns, data volume, latency requirements, and operational complexity.&lt;/p&gt;

&lt;p&gt;Start building applications with SingleStore Helios today!!&lt;/p&gt;

&lt;h2&gt;
  
  
  Ready to Build Your Own?
&lt;/h2&gt;

&lt;ul&gt;
&lt;li&gt;
&lt;a href="https://portal.singlestore.com/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=ai&amp;amp;utm_content=fintech-with-singlestore" rel="noopener noreferrer"&gt;Try SingleStore Helios&lt;/a&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;a href="https://docs.singlestore.com/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=ai&amp;amp;utm_content=fintech-with-singlestore" rel="noopener noreferrer"&gt;Read Docs&lt;/a&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;a href="https://www.singlestore.com/demo/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=ai&amp;amp;utm_content=fintech-with-singlestore" rel="noopener noreferrer"&gt;Watch Demo&lt;/a&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;a href="https://bit.ly/singlestorewebinars/?utm_source=Aasawari&amp;amp;utm_medium=blog&amp;amp;utm_campaign=ai&amp;amp;utm_content=fintech-with-singlestore" rel="noopener noreferrer"&gt;Upcoming Webinars&lt;/a&gt; &lt;/li&gt;
&lt;/ul&gt;

</description>
      <category>database</category>
      <category>vectordatabase</category>
      <category>ai</category>
      <category>singlestore</category>
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