Пример текста ошибки:

pg_dump: ошибка: ошибка при выполнении запроса: ОШИБКА:  unknown alignment
pg_dump: подробности: Выполнялся запрос: SELECT    t.tableoid,
          t.oid,
          i.indrelid,
          t.relname                                AS indexname,
          pg_catalog.Pg_get_indexdef(i.indexrelid) AS indexdef,
          i.indkey,
          t.reltype AS indtype,
          i.indisclustered,
          c.contype,
          c.conname,
          c.condeferrable,
          c.condeferred,
          c.tableoid                                    AS contableoid,
          c.oid                                         AS conoid,
          pg_catalog.Pg_get_constraintdef(c.oid, false) AS condef,
          (
                 SELECT spcname
                 FROM   pg_catalog.pg_tablespace s
                 WHERE  s.oid = t.reltablespace) AS tablespace,
          t.reloptions                           AS indreloptions,
          i.indisreplident,
          inh.inhparent AS parentidx,
          i.indnkeyatts AS indnkeyatts,
          i.indnatts    AS indnatts,
          (
                   SELECT   pg_catalog.array_agg(attnum order BY attnum)
                   FROM     pg_catalog.pg_attribute
                   WHERE    attrelid = i.indexrelid
                   AND      attstattarget >= 0) AS indstatcols,
          (
                   SELECT   pg_catalog.array_agg(attstattarget ORDER BY attnum)
                   FROM     pg_catalog.pg_attribute
                   WHERE    attrelid = i.indexrelid
                   AND      attstattarget >= 0) AS indstatvals,
          i.indnullsnotdistinct
FROM      unnest('{15632749,15632754,15632759,15632764,15632769,15632774,15632779,15632784,15632789,15632794,15632799,15632804,15632809,15632814,15632819,15632824,15632829,15632834,15632839,15632844,15632849...}'::pg_catalog.oid[]) AS src(tbloid)
JOIN      pg_catalog.pg_index i
ON        (
                    src.tbloid = i.indrelid)
JOIN      pg_catalog.pg_class t
ON        (
                    t.oid = i.indexrelid)
JOIN      pg_catalog.pg_class t2
ON        (
                    t2.oid = i.indrelid)
LEFT JOIN pg_catalog.pg_constraint c
ON        (
                    i.indrelid = c.conrelid
          AND       i.indexrelid = c.conindid
          AND       c.contype IN ('p',
                                  'u',
                                  'x'))
LEFT JOIN pg_catalog.pg_inherits inh
ON        (
                    inh.inhrelid = indexrelid)
WHERE     (
                    i.indisvalid
          OR        t2.relkind = 'p')
AND       i.indisready
ORDER BY  i.indrelid,
          indexname
CODE

Решением данной проблемы является выключение параметра JIT:

psql -c "ALTER SYSTEM SET jit = off;"
psql -c "SELECT pg_reload_conf();"
CODE