loopdb: withdrawal table and queries

Author: hieblmi

loopdb/sqlc/migrations/000015_static_address_withdrawals.down.sql

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+DROP TABLE IF EXISTS withdrawals;

loopdb/sqlc/migrations/000015_static_address_withdrawals.up.sql

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+-- withdrawals stores finalized static address withdrawals.
+CREATE TABLE IF NOT EXISTS withdrawals (
+    -- id is the auto-incrementing primary key for a withdrawal.
+    id INTEGER PRIMARY KEY,
+
+    -- withdrawal_tx_id is the transaction tx id of the withdrawal.
+    withdrawal_tx_id TEXT NOT NULL UNIQUE,
+
+    -- deposit_outpoints is a concatenated list of outpoints that are used for
+    -- this withdrawal. The list has the format txid1:idx;txid2:idx;...
+    deposit_outpoints TEXT NOT NULL,
+
+    -- total_deposit_amount is the total amount of the deposits in satoshis.
+    total_deposit_amount BIGINT NOT NULL,
+
+    -- withdrawn_amount is the total amount of the withdrawal. It amounts
+    -- to the total amount of the deposits minus the fees and optional change.
+    withdrawn_amount BIGINT NOT NULL,
+
+    -- change_amount is the optional change that the user selected.
+    change_amount BIGINT NOT NULL,
+
+    -- confirmation_height is the block height at which the withdrawal was
+    -- first confirmed.
+    confirmation_height BIGINT NOT NULL
+);

loopdb/sqlc/models.go

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+-- name: CreateWithdrawal :exec
+INSERT INTO withdrawals (
+    withdrawal_tx_id,
+    deposit_outpoints,
+    total_deposit_amount,
+    withdrawn_amount,
+    change_amount,
+    confirmation_height
+) VALUES (
+             $1,
+             $2,
+             $3,
+             $4,
+             $5,
+             $6
+         );
+
+-- name: AllWithdrawals :many
+SELECT
+    *
+FROM
+    withdrawals
+ORDER BY
+    id ASC;