Hello,
My wiki account name is JoeK
I was hoping to share an updated Fixing Sequences query (
https://wiki.postgresql.org/wiki/Fixing_Sequences). We tried to use the query as it currently stands and ran into a handful of problems. I suspect the problems stem from the fact that we have a "multi-tenant" app that uses schemas to partition each "tenant", so we have a lot of tables and columns with the same names, only in different schemas. The current query returned a lot of duplicate resulting queries for us. It also seems to actually return invalid queries in some cases. I've come up with a slightly simpler query that shouldn't produce duplicate or invalid results:
SELECT 'SELECT SETVAL(' ||
quote_literal(quote_ident(SCHEMAS.nspname) || '.' || quote_ident(SEQUENCES.relname)) ||
', COALESCE(MAX(' ||quote_ident(COLUMNS.attname)|| '), 1) ) FROM ' ||
quote_ident(SCHEMAS.nspname)|| '.'||quote_ident(TABLES.relname)|| ';'
FROM pg_class SEQUENCES
INNER JOIN pg_namespace SCHEMAS ON SCHEMAS.oid = SEQUENCES.relnamespace
INNER JOIN pg_depend ON pg_depend.objid = SEQUENCES.oid
INNER JOIN pg_attribute COLUMNS ON COLUMNS.attrelid = pg_depend.refobjid AND COLUMNS.attnum = pg_depend.refobjsubid
INNER JOIN pg_class TABLES ON TABLES.oid = COLUMNS.attrelid
WHERE SEQUENCES.relkind = 'S'
So I was hoping to propose that as a possible replacement (or alternative).
Thanks!
-Joe