Source Postgres: Handle Arrays data types #16990

VitaliiMaltsev · 2022-09-21T15:14:19Z

What

At the moment, when emitting data of the array type, a json schema is formed that looks like an array without items, and the data is transferred simply as a string. this can lead to incorrect data transfer and also some types of arrays are not implemented at all

{
  "type": "array"
}

Data type handling should be able to handle all data types that Postgres supports

How

Updated mapping of all types of arrays for json schema, implemented conversion for СDС and STANDARD replication
Example

BIT[]  ==> 
{
  "type": "array",
  "items": {
    "type": "boolean"
  }
}

VARCHAR[] ==>
{
  "type": "array",
  "items": {
    "type": "string"
  }
}

🚨 User Impact 🚨

There should not be any user impact

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github-actions · 2022-09-21T15:15:14Z