Osm2pgsql can't append data to pgsnapshot tables

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1

I have osmosis (based on pgsnapshot schema) database and add into data for Crimean region by them, got from Geofabrik.
Now, I decided to append the Belarus region by osm2pgsql and create this lua file:

print("Loading geobase.lua")

local tables {}

-- NODES
tables.nodes = osm2pgsql.define_node_table({
    name = 'nodes',
    ids = { type = 'node', id_column = 'id' },
    columns = {
        { column = 'gid',             type = 'bigint' },
        { column = 'version',         type = 'int' },
        { column = 'user_id',         type = 'int' },
        { column = 'tstamp',          type = 'timestamp' },
        { column = 'changeset_id',    type = 'bigint' },
        { column = 'tags',            type = 'hstore' },
        { column = 'geom',            type = 'point', projection = 4326 },
    }
})

-- WAYS
tables.ways = osm2pgsql.define_way_table('ways', {
    { column = 'id',              type = 'bigint' },
    { column = 'version',         type = 'int' },
    { column = 'user_id',         type = 'int' },
    { column = 'tstamp',          type = 'timestamp' },
    { column = 'changeset_id',    type = 'bigint' },
    { column = 'tags',            type = 'hstore' },
    { column = 'nodes',           type = 'bigint[]' },
    -- nodes_hash, linestring, highway, building: можно вычислять отдельно, если нужно
})
-- WAY_NODES
tables.way_nodes = osm2pgsql.define_way_node_table('way_nodes', {
    { column = 'way_id',      type = 'bigint' },
    { column = 'node_id',     type = 'bigint' },
    { column = 'sequence_id', type = 'int' }
})
-- RELATIONS
tables.relations = osm2pgsql.define_relation_table('relations', {
    { column = 'id',              type = 'bigint' },
    { column = 'version',         type = 'int' },
    { column = 'user_id',         type = 'int' },
    { column = 'tstamp',          type = 'timestamp' },
    { column = 'changeset_id',    type = 'bigint' },
    { column = 'tags',            type = 'hstore' },
    -- imported_id, members_hash: можно вычислять отдельно, если нужно
})
-- RELATION_MEMBERS
tables.relation_members = osm2pgsql.define_relation_member_table('relation_members', {
    { column = 'relation_id', type = 'bigint' },
    { column = 'member_id',   type = 'bigint' },
    { column = 'member_type', type = 'char' },
    { column = 'member_role', type = 'text' },
    { column = 'sequence_id', type = 'int' }
})


function osm2pgsql.process_node(object)
    tables.nodes:add_row({
        id            = object.id,
        version       = object.version,
        user_id       = object.uid,
        tstamp        = object.timestamp,
        changeset_id  = object.changeset,
        tags          = osm2pgsql.to_hstore(object.tags),
        geom          = { create = 'point', coords = { object.lon, object.lat } }
    })
end

function osm2pgsql.process_way(object)
    tables.ways:add_row({
        id            = object.id,
        version       = object.version,
        user_id       = object.uid,
        tstamp        = object.timestamp,
        changeset_id  = object.changeset,
        tags          = osm2pgsql.to_hstore(object.tags),
        nodes         = object.nodes
    })
    -- way_nodes
    for i, node_id in ipairs(object.nodes) do
        tables.way_nodes:add_row({
            way_id      = object.id,
            node_id     = node_id,
            sequence_id = i
        })
    end
end

function osm2pgsql.process_relation(object)
    tables.relations:add_row({
        id            = object.id,
        version       = object.version,
        user_id       = object.uid,
        tstamp        = object.timestamp,
        changeset_id  = object.changeset,
        tags          = osm2pgsql.to_hstore(object.tags)
    })
    -- relation_members
    for i, member in ipairs(object.members) do
        tables.relation_members:add_row({
            relation_id = object.id,
            member_id   = member.ref,
            member_type = string.upper(string.sub(member.type, 1, 1)), -- N/W/R
            member_role = member.role or '',
            sequence_id = i
        })
    end
end

print("End of geobase.lua")

but, when run osm2pgsl:

osm2pgsql -H 127.0.0.1 -d geobase -U postgres -W --slim -O flex -S ./geobase.lua
--append --flat-nodes /tmp/flat_nodes_cache.bin ./belarus-latest.osm.pbf

I see this error: ERROR: Database error: ERROR: relation “planet_osm_ways” not exists LINE 1: …REPARE mark_ways_by_node(int8) AS SELECT id FROM "planet_os…

And not any print to console from lua file too. What I do wrong?
How append data with osm2pgsql without creating tables?

2

Osmosis is a totally different program than osm2pgsql. They use different database schemas. You can not expect that you can update a database created with Osmosis with osm2pgsql.