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Snapshot config to define column names #6146

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Snapshot config to define column names #6146

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Snapshot config to define column names
nataliefiann Sep 25, 2024
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Update website/docs/reference/snapshot-configs.md
nataliefiann Sep 25, 2024
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Update website/docs/reference/snapshot-configs.md
nataliefiann Sep 25, 2024
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nataliefiann Sep 30, 2024
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Update website/docs/reference/snapshot-configs.md
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45 changes: 45 additions & 0 deletions website/docs/reference/snapshot-configs.md
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Expand Up @@ -301,3 +301,48 @@ snapshots:
```

</File>

<VersionBlock firstVersion="1.9">

#### Define column names in snapshot table
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You can use the following config to define the names of the columns that are created in the [snapshot table](/docs/build/snapshots#snapshot-meta-fields).
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<File name='dbt_project.yml'>
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let's also show the example from the issue on how to do this in the config block:

{{
    config(
      target_database='analytics',
      target_schema='snapshots',
      unique_key='id',

      strategy='timestamp',
      updated_at='updated_at',
      
      snapshot_meta_column_names={
        dbt_valid_from: start_date,
        dbt_valid_to: end_date,
        dbt_scd_id: scd_id,
        dbt_updated_at: updated_date
      }
    )
}}

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we have some tab thing for other examples so you can see how to write a config in different places


```yml

snapshots:
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Let's use the full example from the issue!

snapshots:
  my_project:
    +snapshot_meta_column_names={
      dbt_valid_from: start_date,
      dbt_valid_to: end_date,
      dbt_scd_id: scd_id,
      dbt_updated_at: updated_date
    }

my_project:
+snapshot_meta_column_names ={
dbt_valid_from: example_valid_from,
dbt_valid_to: example_valid_to
}

```

</File>

- When you run your snapshots, dbt handles the renames from `dbt_valid_from` to `example_valid_from` for you.
- Update your config to:
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<File name='dbt_project.yml'>

```yml

snapshots:
my_project:
+snapshot_meta_column_names ={
dbt_valid_from: test_valid_from,
dbt_valid_to: test_valid_to
}

```

</File>

- When you run your snapshots, dbt handles the renames from `example_valid_from` to `test_valid_from` for you.
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same comment as above - this is not true


You can read through the section on [Defining column names](/docs/build/snapshots#define-column-names-in-snapshot-table) for more information.
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the link doesn't take me to the right place? or for some reason i didn't see the 'define column names' section?


</VersionBlock>
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