Each balance change on an address a ledger account holds, in token units: a
wallet_account_transaction row with token_id set whose transaction has
block_time, matched by wallet_address_id, or by account_key on a Solana
row whose wallet_address_id is NULL. postBalance is the stored one where
the chain reports it (Solana), else a running sum of amount. A balance is
the latest postBalance per (address, token) by blockTime, slot,
indexWithinBlock. .existing(): the SQL is in
20261023193347_wallet_transaction_network.sql.
Each balance change on an address a ledger account holds, in token units: a
wallet_account_transactionrow withtoken_idset whose transaction hasblock_time, matched bywallet_address_id, or byaccount_keyon a Solana row whosewallet_address_idis NULL.postBalanceis the stored one where the chain reports it (Solana), else a running sum ofamount. A balance is the latestpostBalanceper (address, token) byblockTime,slot,indexWithinBlock..existing(): the SQL is in20261023193347_wallet_transaction_network.sql.