Roman

[Bug] PostAsync throws an invalidCast exception with DynamoDB outbox

1

### Describe the bug An InvalidCastException is thrown when calling **PostAsync** with a **DynamoDB** outbox. However, it works correctly when calling DepositPostAsync while providing an IAmADynamoDbTransactionProvider ### To Reproduce Setup...

[Bug] MySQL Outbox - All pooled connections are in use

1

### Describe the bug When doing **DepositPostAsync** and then clear messages explicitly by calling **ClearOutboxAsync** the connection pool becomes full very quick. It looks like the connections are not properly...

[Bug] The HasOpenTransaction property in MySqlEntityFrameworkConnectionProvider always returns false

1

### Describe the bug The **HasOpenTransaction** property in **MySqlEntityFrameworkConnectionProvider** always returns false, preventing changes to the outbox and entity store from being written in the same transaction. The solution would...

[Bug] PagedOutstandingCommand query in MySQL Outbox subtracts seconds instead of milliseconds, causing OutboxSweeper to function incorrectly

2

### Describe the bug **PagedOutstandingCommand** query in MySQL Outbox subtracts seconds instead of milliseconds, causing OutboxSweeper to function incorrectly. This should be an easy fix. ### To Reproduce Set up...

[Bug] MySQL Outbox - PagedDispatchedCommand fails

6

### Describe the bug The **PagedDispatchedCommand** query fails in MySQL, causing the Archiver to stop working due to unknown column 'NUMBER' error. Noticed in 10.0.0-preview.3 but persists in the latest...