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db: Strengthen some null-checks on queries

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sqlite3 will just report 0 for anything that it thinks should be numeric, or
is accessed using a numeric accessor. Postgres does not, so we need to check
for is_null before trying to read it.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
This commit is contained in:
Christian Decker 2019-09-11 00:22:32 +02:00 committed by Rusty Russell
parent 07f8d9046a
commit 1f935cbd85
1 changed files with 5 additions and 3 deletions
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8
wallet/wallet.c
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@ -2829,8 +2829,10 @@ void wallet_transaction_annotate(struct wallet *w,
fatal("Attempting to annotate a transaction we don't have: %s",
type_to_string(tmpctx, struct bitcoin_txid, txid));
type |= db_column_int(stmt, 0);
if (channel_id == 0)
if (!db_column_is_null(stmt, 0))
type |= db_column_int(stmt, 0);
if (channel_id == 0 && !db_column_is_null(stmt, 1))
channel_id = db_column_u64(stmt, 1);
tal_free(stmt);
@ -3085,7 +3087,7 @@ struct amount_msat wallet_total_forward_fees(struct wallet *w)
bool res;
stmt = db_prepare_v2(w->db, SQL("SELECT"
" SUM(in_msatoshi - out_msatoshi) "
" CAST(COALESCE(SUM(in_msatoshi - out_msatoshi), 0) AS BIGINT)"
"FROM forwarded_payments "
"WHERE state = ?;"));
db_bind_int(stmt, 0, wallet_forward_status_in_db(FORWARD_SETTLED));