migration for applying log_cids.leaf_mh_key FK constraint to check that repair process was completed

db/post_batch_processing_migrations/00019_create_log_mhk_fk.sql

@@ -0,0 +1,9 @@
+-- +goose Up
+ALTER TABLE eth.log_cids
+ADD CONSTRAINT fk_log_leaf_mh_key
+    FOREIGN KEY (leaf_mh_key) REFERENCES public.blocks (key)
+    ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED;
+
+-- +goose Down
+ALTER TABLE eth.log_cids
+DROP CONSTRAINT fk_log_leaf_mh_key;

db/post_batch_processing_migrations/00020_disable_log_indexes_and_drop_mhk_fk.sql

@@ -21,7 +21,15 @@ WHERE indrelid = (
     WHERE relname='eth.header_cids'
 );
 
+ALTER TABLE eth.log_cids
+DROP CONSTRAINT fk_log_leaf_mh_key;
+
 -- +goose Down
+ALTER TABLE eth.log_cids
+ADD CONSTRAINT fk_log_leaf_mh_key
+    FOREIGN KEY (leaf_mh_key) REFERENCES public.blocks (key)
+    ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED;
+
 UPDATE pg_index
 SET indisready=true
 WHERE indrelid = (