SELECT table_name, column_name, is_updatable FROM information_schema.columns WHERE table_name LIKE E'r_\\_view%' ORDER BY table_name, ordinal_position;
at d1d286d83c0eed695910cb20d970ea9bea2e5001, this query in src/test/regress/sql/updatable_views.sql makes regress tests fail. maybe other query also, but this is the first one that invokes the server crash.
Thank you for the report. I looked at this a little bit and I think here is what happened. In deconstruct_distribute_oj_quals we call distribute_quals_to_rels using the uncopied sjinfo->syn_lefthand as outerjoin_nonnullable, which eventually becomes rinfo->outer_relids. Later on, when we remove useless left joins, we modify sjinfo->syn_lefthand using bms_del_member and recycle sjinfo->syn_lefthand. And that causes the rinfo->outer_relids becomes invalid, and finally triggers this issue in join_clause_is_movable_to.
Maybe we want to bms_copy sjinfo->syn_lefthand first before using it as nonnullable_rels.
