CREARE TABELA raw.local_transactions PE CLUSTERUL cluster_4x2 ( transaction_id String, user_id String, amount Float64, created_at DateTime ) MOTOR = ReplicatedMergeTree() PARTITIONARE DUPĂ amount ORDONARE DUPĂ (transaction_id); CREARE TABELA raw.transactions PE CLUSTERUL cluster_4x2 ( transaction_id String, user_id String, amount Float64, created_at DateTime ) MOTOR = Distributed('cluster_4x2', 'raw', 'local_transactions', cityHash64(user_id));