# Apache Impala vendor-specific interface · access · 2019

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 access layer.

[Apache Impala vendor-specific interface](https://history.columnar.tech/technologies/access/vendor-impala.md): historical names and annual shares.

Connections below describe the whole Apache Impala engine. Access and storage mixes are estimated separately; they are not a joint interface-to-storage distribution.

## Access use within this engine

| Option | Share of engine activity | Share of full access layer |
| --- | --- | --- |
| [JDBC](https://history.columnar.tech/technologies/access/jdbc.md) | 31.5% | 0.6% |
| [ODBC](https://history.columnar.tech/technologies/access/odbc.md) | 24.3% | 0.5% |
| [Apache Impala vendor-specific interface](https://history.columnar.tech/technologies/access/vendor-impala.md) | 17.3% | 0.3% |
| [Python DB-API (other drivers)](https://history.columnar.tech/technologies/access/python.md) | 15.9% | 0.3% |
| [Other language/portable APIs](https://history.columnar.tech/technologies/access/other-api.md) | 10.9% | 0.2% |

## Storage use within this engine

| Option | Share of engine activity | Share of full storage layer |
| --- | --- | --- |
| [Standalone Parquet on HDFS](https://history.columnar.tech/technologies/storage/parquet-hdfs.md) | 63% | 1.2% |
| [HDFS text/SequenceFile/RCFile/Avro](https://history.columnar.tech/technologies/storage/hdfs-row.md) | 12% | 0.2% |
| [Kudu shared storage](https://history.columnar.tech/technologies/storage/kudu.md) | 12% | 0.2% |
| [Standalone Parquet on object storage](https://history.columnar.tech/technologies/storage/parquet-object.md) | 8.9% | 0.2% |
| [Standalone ORC on HDFS](https://history.columnar.tech/technologies/storage/orc-hdfs.md) | 4.1% | <0.1% |

[All percentages for 2019](https://history.columnar.tech/years/2019.md)

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