由于@a_horse_with_no_name答案在我的情况下不起作用(SQL文件可能有问题),因此我修改了下面的查询,在我的情况下起作用。
with sequences as ( select * from ( select table_schema,table_name,column_name,replace(replace(replace(column_default, '::regclass)', ''), '''', ''), 'nextval(', 'public.') as col_sequence from information_schema.columns where table_schema not in ('pg_catalog', 'information_schema') and column_default ILIKE 'nextval(%' ) t where col_sequence is not null), maxvals as ( select table_schema, table_name, column_name, col_sequence, (xpath('/row/max/text()', query_to_xml(format('select max(%I) from %I.%I', column_name, table_schema, table_name), true, true, '')) )[1]::text::bigint as max_val from sequences) select table_schema, table_name, column_name, col_sequence, coalesce(max_val, 0) as max_val, setval(col_sequence, coalesce(max_val, 1)) --<< this will change the sequencefrom maxvals;我只是更改
pg_get_serial_sequence(format('%I.%I', table_schema, table_name),column_name) as col_sequence为replace(replace(replace(column_default,'::regclass)', ''), '''', ''), 'nextval(', 'public.') as col_sequence。也许我的查询不是很好,我应该使用正则表达式而不是多个替换。但就我而言,这是100%可行的。



