import { tableConstQuery } from "https://deno.land/x/denogres@v4.0.1/src/queries/introspection.ts";
type
`
SELECT tables.schemaname, class.relname AS table_name,
pg_get_constraintdef(pg_constraint.oid) AS condef, contype
FROM pg_class class
INNER JOIN pg_tables tables on class.relname = tables.tablename
INNER JOIN pg_constraint ON class.oid = pg_constraint.conrelid
WHERE tables.schemaname NOT IN ('pg_catalog', 'information_schema');`