Support LogicalTypes in AVRO #415
Description
AVRO supports logical types, but KSML can not handle these yet.
Example:
{
"type": "record",
"name": "CreditCardTransaction",
"namespace": "com.example.payment",
"doc": "Represents a credit card transaction",
"fields": [
{
"name": "transaction_id",
"type": "string",
"doc": "Unique identifier for the transaction"
},
{
"name": "card_number_last4",
"type": "string",
"doc": "Last 4 digits of the credit card number"
},
{
"name": "merchant_id",
"type": "string",
"doc": "Identifier for the merchant"
},
{
"name": "merchant_name",
"type": "string",
"doc": "Name of the merchant"
},
{
"name": "amount",
"type": {
"type": "bytes",
"logicalType": "decimal",
"precision": 10,
"scale": 2
},
"doc": "Transaction amount in the specified currency"
},
{
"name": "currency",
"type": "string",
"default": "USD",
"doc": "ISO 4217 currency code"
},
{
"name": "transaction_timestamp",
"type": {
"type": "long",
"logicalType": "timestamp-millis"
},
"doc": "Timestamp of when the transaction occurred"
},
{
"name": "transaction_type",
"type": {
"type": "enum",
"name": "TransactionType",
"symbols": ["PURCHASE", "REFUND", "AUTHORIZATION", "VOID"]
},
"doc": "Type of transaction"
},
{
"name": "status",
"type": {
"type": "enum",
"name": "TransactionStatus",
"symbols": ["PENDING", "APPROVED", "DECLINED", "FAILED"]
},
"doc": "Current status of the transaction"
},
{
"name": "card_type",
"type": ["null", "string"],
"default": null,
"doc": "Type of credit card (VISA, MASTERCARD, AMEX, etc.)"
},
{
"name": "billing_zip_code",
"type": ["null", "string"],
"default": null,
"doc": "Billing ZIP/postal code"
},
{
"name": "authorization_code",
"type": ["null", "string"],
"default": null,
"doc": "Authorization code from the payment processor"
},
{
"name": "metadata",
"type": ["null", {
"type": "map",
"values": "string"
}],
"default": null,
"doc": "Additional metadata about the transaction"
}
]
}