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Serverless SQL Database: Update known-differences.mdx #3762

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Merged
merged 2 commits into from
Sep 27, 2024
Merged

Serverless SQL Database: Update known-differences.mdx #3762

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a9fd01a
Update known-differences.mdx
fpagny Sep 26, 2024
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SamyOubouaziz Sep 27, 2024
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14 changes: 11 additions & 3 deletions serverless/sql-databases/reference-content/known-differences.mdx
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Expand Up @@ -33,7 +33,7 @@ If you require strict compatibility with all PostgreSQL features, you can use [M
NOTIFY channel, 'message';
```

- Creating temporary tables or views is not supported.
- It is not possible to create temporary tables or views.

```sql
CREATE TEMPORARY TABLE table as {query};
Expand All @@ -50,7 +50,7 @@ If you require strict compatibility with all PostgreSQL features, you can use [M
You can still refresh materialized views without the `CONCURRENTLY` option.
</Message>

- Declaring a cursor in transactions with `WITH HOLD` is not supported.
- You can declare a cursor in transactions with `WITH HOLD`, but accurate cursor handling is not guaranteed, particularly when using multiple connections.

```sql
BEGIN;
Expand All @@ -64,7 +64,7 @@ If you require strict compatibility with all PostgreSQL features, you can use [M
CREATE SUBSCRIPTION subscription CONNECTION 'connection' PUBLICATION publication;
```

- Preparing transactions is not supported.
- It is not possible to prepare transactions.

```sql
PREPARE TRANSACTION 'transactionid';
Expand Down Expand Up @@ -117,6 +117,14 @@ If you require strict compatibility with all PostgreSQL features, you can use [M
SET TIME ZONE 'Europe/Paris';
RESET timezone;
```
If you require these features to work consistently for a given SQL query, we suggest you set them in transactions:
```sql
BEGIN;
SET TIME ZONE 'Europe/Paris';
SHOW timezone;
COMMIT;
```
In this example, `SHOW timezone` will always display `Europe/Paris` without any impact from any other connection despite connection pooling.

- Security labels cannot be defined or changed.

Expand Down