> ## Documentation Index
> Fetch the complete documentation index at: https://rajanand.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Spark: Overview

<AccordionGroup>
  <Accordion title="Spark Concepts" icon="arrows-to-circle" defaultOpen="true">
    <Icon icon="calendar-days" iconType="regular" size="20" />  [Spark DataFrame](/spark/spark-dataframe) <br />
    <Icon icon="calendar-days" iconType="solid" size="20" />  [Spark Dataset](/spark/spark-dataset) <br />
    <Icon icon="calendar-days" iconType="duotone" size="20" />  [RDD](/spark/spark-rdd) <br />
    <Icon icon="shuffle" iconType="regular" size="20" />  [Shuffle Join](/spark/spark-shuffle-join) <br />
    <Icon icon="table" iconType="duotone" size="20" />  [Datasets vs DataFrames](/spark/spark-datasets-vs-dataframes) <br />
    <Icon icon="radiation" iconType="duotone" size="20" />  [Transformations vs Actions](/spark/spark-transformations-vs-actions) <br />
    <Icon icon="cubes-stacked" iconType="duotone" size="20" />  [Collect vs Take](/spark/spark-collect-vs-take) <br />
  </Accordion>

  <Accordion title="Spark Optimization" icon="arrow-up-right-dots" defaultOpen="true">
    <Icon icon="database" iconType="duotone" size="20" />  [Predicate Pushdown](/spark/spark-predicate-pushdown) <br />
  </Accordion>
</AccordionGroup>