module PgHero::Methods::Constraints
Public Instance Methods
Source
# File lib/pghero/methods/constraints.rb, line 6 def invalid_constraints select_all <<~SQL SELECT nsp.nspname AS schema, rel.relname AS table, con.conname AS name, fnsp.nspname AS referenced_schema, frel.relname AS referenced_table FROM pg_catalog.pg_constraint con INNER JOIN pg_catalog.pg_class rel ON rel.oid = con.conrelid LEFT JOIN pg_catalog.pg_class frel ON frel.oid = con.confrelid LEFT JOIN pg_catalog.pg_namespace nsp ON nsp.oid = con.connamespace LEFT JOIN pg_catalog.pg_namespace fnsp ON fnsp.oid = frel.relnamespace WHERE con.convalidated = 'f' SQL end
referenced fields can be nil as not all constraints are foreign keys