Repository Issue Activity (beta)

#4789 `Repo.exists?` changes the membership semantics of `EXCEPT` and `INTERSECT`

#4786 Add a cache to Ecto.Repo.preload

#4783 "Transaction is not started" solved by changing log level on the Repo.insert

#4774 `Ecto.Type.cast/2` drops non-UTC DateTime offsets when casting to naive types

#4778 Repo.query!/3 takes ~200ms for complex CTE query, but database execution is only ~25ms

#4776 `select: map(source, fields)` and `select: [:fields]` lose field types when the source is a subquery

#4772 `autogenerate: [opts]` crashes on parameterized and composite field types

#4770 `prepare_changes/2` bypasses `writable` field enforcement

#4763 Interpolating a query containing a where subquery into a join crashes the planner

#4769 Docs: Getting Started page - "supervision tree" link is broken

#4767 `Ecto.Changeset.merge/2` silently drops `prepare_changes` callbacks from the second changeset

#4751 Modifying a field to type `:identity` in a migration produces invalid SQL

#4761 Way greedy preload for throughs?

#4757 Map update on the `from` binding poisons other full-source references in `select`

#4755 `apply_changes/1` leaves a stale `belongs_to` FK when the association is removed

#4753 `changed?/3` raises `BadMapError` after removing a cardinality-one relation

#4747 Data-modifying CTEs drop/misorder params and collide query-cache keys

#4749 `splice(^list)` inside `dynamic/2` duplicates splice params

#4588 Ecto allows parentheses in field names without raising an error

#4744 Subqueries stored reversed in order_by, group_by, distinct, windows

#4742 Repo.insert_all silently corrupts placeholders

#4740 Wrong placeholder numbering when a `from` source is a `{fragment, schema}` tuple

#4719 Add mix ecto.query

#4718 Ecto.Repo.Supervisor.start_child leaks credentials

#4725 Upsert, `many_to_many` and `cast_assoc`: insert in join table generated even when the upsert turns out to be an update