Find table FK deps postgres

sql.sql

WITH RECURSIVE DependencyTree AS (
    -- Anchor member
    SELECT
        fk.confrelid AS referenced_oid,
        fk.conrelid AS referencing_oid,
        ns_child.nspname AS referencing_schema,
        cl_child.relname AS referencing_table,
        ns_parent.nspname AS referenced_schema,
        cl_parent.relname AS referenced_table,
        0 AS depth,
        ARRAY[fk.confrelid, fk.conrelid] AS path_oids
    FROM pg_constraint fk
    JOIN pg_class cl_child ON fk.conrelid = cl_child.oid
    JOIN pg_namespace ns_child ON cl_child.relnamespace = ns_child.oid
    JOIN pg_class cl_parent ON fk.confrelid = cl_parent.oid
    JOIN pg_namespace ns_parent ON cl_parent.relnamespace = ns_parent.oid
    WHERE fk.contype = 'f'
      AND cl_parent.relname = 'TABELA_AQUI' -- TABELA AQUI
      AND ns_parent.nspname = 'public'

    UNION ALL

-- Recursive member


SELECT
        fk.confrelid AS referenced_oid,
        fk.conrelid AS referencing_oid,
        ns_child.nspname AS referencing_schema,
        cl_child.relname AS referencing_table,
        dt.referencing_schema AS referenced_schema,
        dt.referencing_table AS referenced_table,
        dt.depth + 1 AS depth,
        dt.path_oids || fk.conrelid
    FROM pg_constraint fk
    JOIN pg_class cl_child ON fk.conrelid = cl_child.oid
    JOIN pg_namespace ns_child ON cl_child.relnamespace = ns_child.oid
    JOIN DependencyTree dt ON fk.confrelid = dt.referencing_oid
    WHERE fk.contype = 'f'
      AND NOT fk.conrelid = ANY(dt.path_oids) -- Prevent cycles
),
AllTablesToDelete AS (
    SELECT DISTINCT
        referencing_schema,
        referencing_table,
        depth,
        FORMAT('DELETE FROM "%I"."%I";', referencing_schema, referencing_table) AS delete_sql
    FROM DependencyTree

    UNION ALL

    SELECT
        'public' AS referencing_schema,
        'TABELA_AQUI' AS referencing_table,
        -1 AS depth,
        'DELETE FROM "public"."TABELA_AQUI";' AS delete_sql
)
SELECT *
FROM AllTablesToDelete
ORDER BY depth DESC, referencing_schema, referencing_table;