The SQL statement to execute
Parameter values to bind to the SQL statement
Number of concurrent queries to run at once (default: 50)
Optionaloptions: ReadOptions
Read guarantee for this call
Promise resolving to an array of first matching records from each shard
Executes a query on all shards and returns the first matching record from each shard.
This function is useful for scenarios where you need to retrieve a single record from each shard, such as fetching the latest entry or a specific item that may exist on multiple shards.