COLUMN_STATISTICS

This view contains information about each column in a given cluster. Each row displays information about a given column on a given database partition.

Column Name	Description
`DATABASE_NAME`	The name of the related database.
`SCHEMA_NAME`	The name of the related database (this is the same as `DATABASE_NAME`, and exists for MySQL compatibility).
`TABLE_NAME`	The name of the related table.
`COLUMN_NAME`	The name of a given column.
`ORDINAL`	The `ID` for the related partition.
`HOST`	The hostname or IP address for the related node.
`PORT`	The port number of the related node.
`NODE_TYPE`	The type of node: master aggregator (MA), child aggregator (CA), or leaf node (LEAF).
`PARTITION_TYPE`	The type of partition: master or secondary.
`MEMORY_USE`	The amount of memory, in MB, being used by a given column. Only applies to fixed-width fields in rowstore tables, otherwise it will be reported as NULL. For columnstore, use the TABLE_STATISTICS view to see how much memory (RAM) the table is using. This will include all columns as there is no per-column memory use tracking for columnstore tables.
`HISTOGRAM`	This column exists for MySQL compatibility and is always blank.

Last modified: December 12, 2023

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

(Optional) Run the following command to view the associated signature files.
Shell
```
curl undefined
```
Download the signature file from the SingleStore release server.
- Option 1: Click the Download Signature button next to the SingleStore file.
- Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.
- Option 3: Run the following command to download the signature file.
  Shell
```
curl -O undefined
```

After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

Shell

echo -n undefined |
    cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
      --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
      --bundle undefined \
      --new-bundle-format -

Verified OK