select.rivers = \
    SELECT r.id AS id, r.name AS name, min(wcv.position) AS min_km, max(wcv.position) AS max_km \
    FROM rivers r \
        JOIN wsts w ON r.id = w.river_id \
        JOIN wst_columns wc ON w.id = wc.wst_id \
        JOIN wst_column_values wcv ON wcv.wst_column_id = wc.id \
    WHERE w.kind = 0 \
    GROUP BY r.id, r.name
select.gauges = \
    SELECT id, name, official_number \
    FROM gauges \
    WHERE river_id = :river_id
next.gauge.id = \
    SELECT NEXTVAL('GAUGES_ID_SEQ') AS gauge_id
insert.gauge = \
    INSERT INTO gauges (id, name, river_id, station, aeo, official_number, datum) \
    VALUES(:id, :name, :river_id, :station, :aeo, :official_number, :datum)
select.timeintervals = \
    SELECT id, start_time, stop_time FROM time_intervals
next.timeinterval.id = \
    SELECT NEXTVAL('TIME_INTERVALS_ID_SEQ') AS time_interval_id
insert.timeinterval = \
    INSERT INTO time_intervals (id, start_time, stop_time) \
    VALUES (:id, :start_time, :stop_time)
next.discharge.id = \
    SELECT NEXTVAL('DISCHARGE_TABLES_ID_SEQ') AS discharge_table_id
insert.dischargetable = \
    INSERT INTO discharge_tables \
    (id, gauge_id, description, bfg_id, kind, time_interval_id) \
    VALUES (:id, :gauge_id, :description, :bfg_id, 1, :time_interval_id)
select.discharge.table.values = \
    SELECT id, w, q FROM discharge_table_values WHERE table_id = :table_id
next.discharge.table.values.id = \
    SELECT NEXTVAL('DISCHARGE_TABLE_VALUES_ID_SEQ') AS discharge_table_values_id
insert.discharge.table.value = \
    INSERT INTO discharge_table_values (id, table_id, w, q) \
    VALUES (:id, :table_id, :w, :q)
delete.discharge.table.value = \
    DELETE FROM discharge_table_values WHERE id = :id
select.gauge.discharge.tables = \
    SELECT \
        dt.id          AS id, \
        dt.description AS description, \
        ti.start_time  AS start_time, \
        ti.stop_time   AS stop_time, \
        dt.bfg_id      AS bfg_id \
    FROM discharge_tables dt \
    LEFT OUTER JOIN time_intervals ti ON dt.time_interval_id = ti.id \
    WHERE gauge_id = :gauge_id