Re: tuple concurrently updated

no, i respect your questions, but i can't answer them. because i don't know in detail what osm2pgsql is doing.

planet_osm_line it postgis

see:

                                     Tabelle »public.planet_osm_line«
             Spalte              |            Typ            | Sortierfolge | NULL erlaubt? | Vorgabewert
---------------------------------+---------------------------+--------------+---------------+-------------
 osm_id                          | bigint                    |              |               |
 access                          | text                      |              |               |
 addr:housename                  | text                      |              |               |
 addr:housenumber                | text                      |              |               |
 addr:interpolation              | text                      |              |               |
 admin_level                     | text                      |              |               |
 aerialway                       | text                      |              |               |
 aeroway                         | text                      |              |               |
 amenity                         | text                      |              |               |
 area                            | text                      |              |               |
 barrier                         | text                      |              |               |
 bicycle                         | text                      |              |               |
 brand                           | text                      |              |               |
 bridge                          | text                      |              |               |
 boundary                        | text                      |              |               |
 building                        | text                      |              |               |
 construction                    | text                      |              |               |
 covered                         | text                      |              |               |
 culvert                         | text                      |              |               |
 cutting                         | text                      |              |               |
 denomination                    | text                      |              |               |
 disused                         | text                      |              |               |
 embankment                      | text                      |              |               |
 foot                            | text                      |              |               |
 generator:source                | text                      |              |               |
 harbour                         | text                      |              |               |
 highway                         | text                      |              |               |
 historic                        | text                      |              |               |
 horse                           | text                      |              |               |
 intermittent                    | text                      |              |               |
 junction                        | text                      |              |               |
 landuse                         | text                      |              |               |
 layer                           | text                      |              |               |
 leisure                         | text                      |              |               |
 lock                            | text                      |              |               |
 man_made                        | text                      |              |               |
 military                        | text                      |              |               |
 motorcar                        | text                      |              |               |
 name                            | text                      |              |               |
 natural                         | text                      |              |               |
 office                          | text                      |              |               |
 oneway                          | text                      |              |               |
 operator                        | text                      |              |               |
 place                           | text                      |              |               |
 population                      | text                      |              |               |
 power                           | text                      |              |               |
 power_source                    | text                      |              |               |
 public_transport                | text                      |              |               |
 railway                         | text                      |              |               |
 ref                             | text                      |              |               |
 religion                        | text                      |              |               |
 route                           | text                      |              |               |
 service                         | text                      |              |               |
 shop                            | text                      |              |               |
 sport                           | text                      |              |               |
 surface                         | text                      |              |               |
 toll                            | text                      |              |               |
 tourism                         | text                      |              |               |
 tower:type                      | text                      |              |               |
 tracktype                       | text                      |              |               |
 tunnel                          | text                      |              |               |
 water                           | text                      |              |               |
 waterway                        | text                      |              |               |
 wetland                         | text                      |              |               |
 width                           | text                      |              |               |
 wood                            | text                      |              |               |
 z_order                         | integer                   |              |               |
 way_area                        | real                      |              |               |
 addr:postcode                   | text                      |              |               |
 de:amtlicher_gemeindeschluessel | text                      |              |               |
 de:regionalschluessel           | text                      |              |               |
 ISO3166-1:alpha3                | text                      |              |               |
 maxspeed                        | text                      |              |               |
 maxspeed:forward                | text                      |              |               |
 maxspeed:backward               | text                      |              |               |
 name:de                         | text                      |              |               |
 note                            | text                      |              |               |
 postal_code                     | text                      |              |               |
 tags                            | hstore                    |              |               |
 way                             | geometry(LineString,4326) |              |               |
Indexe:
    "idx_planet_osm_line_highway" btree (highway)
    "planet_osm_line_index" gist (way), Tablespace »planet3_is1«
    "planet_osm_line_pkey" btree (osm_id), Tablespace »planet3_is1«
    "planet_osm_line_tags_index" gin (tags), Tablespace »planet3_is1«
Tablespace: »planet3_ts1«

On 2018-Aug-28, wambacher@posteo.de wrote:

updates are done using a program, that is without my control: osm2pgsql.

this program does everthing which is necessary including locking. and
it't running for years on many, many openstreetmap servers.

because there was a crash before, it must be a data corruption problem,
not programming error.

It's curious that you reply to my email and not respond to a single of
the questions I posed, and instead answered questions I didn't ask.
Perhaps you thought I asked them because I was bored?

What is the definition of the table?  It sounds like there's some GIS
datatype -- Right?  Are there any triggers or some other fun fact about
this delete?  What is the isolation level in effect when the delete
runs?