[Part 3|*] Implement FetchPayment for SQL Backend#10291

ziggie1984 wants to merge 6 commits intolightningnetwork:elle-payment-sql-series-newlightningnetwork/lnd:elle-payment-sql-series-newfrom

ziggie1984:introduce-sql-schema-payments-part-3ziggie1984/lnd:introduce-sql-schema-payments-part-3Copy head branch name to clipboard