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Syncing Postgres Sequences for All Tables
-- https://wiki.postgresql.org/wiki/Fixing_Sequences
SELECT 'SELECT SETVAL(' ||
quote_literal(quote_ident(PGT.schemaname) || '.' || quote_ident(S.relname)) ||
', COALESCE(MAX(' ||quote_ident(C.attname)|| '), 1) ) FROM ' ||
quote_ident(PGT.schemaname)|| '.'||quote_ident(T.relname)|| ';'
FROM pg_class AS S,
pg_depend AS D,
pg_class AS T,
pg_attribute AS C,
pg_tables AS PGT
WHERE S.relkind = 'S'
AND S.oid = D.objid
AND D.refobjid = T.oid
AND D.refobjid = C.attrelid
AND D.refobjsubid = C.attnum
AND T.relname = PGT.tablename
ORDER BY S.relname;
# this script will generate a bunch of SQL queries to fix your sequences on each table
psql -Atq -h $database_host -U $database_user -d $database_name -p 5432 -f sequence_reset.sql -o temp
# this will consume the temp file generated by the previous command
psql -h $database_host -U $database_user -d $database_name -p 5432 -f temp
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