# Functions
NewEventSink constructs an event sink associated with the PostgreSQL database specified by connStr.
# Structs
BackportBlockIndexer implements the indexer.BlockIndexer interface by delegating indexing operations to an underlying PostgreSQL event sink.
BackportTxIndexer implements the txindex.TxIndexer interface by delegating indexing operations to an underlying PostgreSQL event sink.
EventSink is an indexer backend providing the tx/block index services.