# Object-store CSV/text/Avro · storage · 2012

Revision 1 (11 October 2026) · Modeled snapshot · through 8 October 2026.

All figures are research-informed estimates of analytical activity. Significant errors may remain; decimal places do not imply measurement precision.

0.32% of the full storage layer.

[Object-store CSV/text/Avro](https://history.columnar.tech/technologies/storage/object-row.md): historical names and annual shares.

## Contributions by compute engine

Each figure is a share of the full storage layer.

| Engine | Share of full storage layer | Engine connections |
| --- | --- | --- |
| [Hadoop batch/Hive](https://history.columnar.tech/technologies/compute/hadoop.md) | 0.2% | [Inspect engine](https://history.columnar.tech/connections/2012/compute/hadoop.md) |
| [Spark (independent deployments)](https://history.columnar.tech/technologies/compute/spark.md) | 0.2% | [Inspect engine](https://history.columnar.tech/connections/2012/compute/spark.md) |

[All percentages for 2012](https://history.columnar.tech/years/2012.md)

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[Markdown overview](https://history.columnar.tech/index.md) · [Interactive visualization](https://history.columnar.tech/?2012) · [Methodology](https://history.columnar.tech/methodology.md) · [Terms of use](https://history.columnar.tech/terms.md)

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