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Docs: add support for spark TimestampNtz type to docs #7917

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merged 3 commits into from
Jun 27, 2023
Merged

Docs: add support for spark TimestampNtz type to docs #7917

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5e091a7
add support for spark TimestampNtz type to docs
Ewan-Keith Jun 26, 2023
d17d10d
Update type casing in spark docs
Jun 27, 2023
4e7b4c6
Update type casing in spark docs
Jun 27, 2023
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41 changes: 21 additions & 20 deletions docs/spark-writes.md
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Expand Up @@ -397,25 +397,26 @@ so you may want to understand the type conversion in Iceberg in prior to design

This type conversion table describes how Spark types are converted to the Iceberg types. The conversion applies on both creating Iceberg table and writing to Iceberg table via Spark.

| Spark | Iceberg | Notes |
|-----------------|-------------------------|-------|
| boolean | boolean | |
| short | integer | |
| byte | integer | |
| integer | integer | |
| long | long | |
| float | float | |
| double | double | |
| date | date | |
| timestamp | timestamp with timezone | |
| char | string | |
| varchar | string | |
| string | string | |
| binary | binary | |
| decimal | decimal | |
| struct | struct | |
| array | list | |
| map | map | |
| Spark | Iceberg | Notes |
|-----------------|----------------------------|-------|
| boolean | boolean | |
| short | integer | |
| byte | integer | |
| integer | integer | |
| long | long | |
| float | float | |
| double | double | |
| date | date | |
| timestamp | timestamp with timezone | |
| timestamp_ntz | timestamp without timezone | |
| char | string | |
| varchar | string | |
| string | string | |
| binary | binary | |
| decimal | decimal | |
| struct | struct | |
| array | list | |
| map | map | |

{{< hint info >}}
The table is based on representing conversion during creating table. In fact, broader supports are applied on write. Here're some points on write:
Expand All @@ -438,7 +439,7 @@ This type conversion table describes how Iceberg types are converted to the Spar
| date | date | |
| time | | Not supported |
| timestamp with timezone | timestamp | |
| timestamp without timezone | | Not supported |
| timestamp without timezone | timestamp_ntz | |
| string | string | |
| uuid | string | |
| fixed | binary | |
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