Have read_stream_reset reset pending_read_nblocks.

Add slot-based table AM index scan interface.

Add non-MVCC index scan test module.

Add index scan pgstat test coverage.

Move visibility map memory ordering comments.

Fix crash on trying to expand a shared memory hash table

Improve stability of btree page split on ERRORs

Remove GUC_NOT_IN_SAMPLE from enable_self_join_elimination

Put enable_self_join_elimination into postgresql.conf.sample

Get rid of ojrelid local variable in remove_rel_from_query()

Implement Self-Join Elimination

Revert: Remove useless self-joins

Use heap_inplace_update() to unset pg_database.dathasloginevt

Fix some typos in event trigger docs

Remove the flaky check in event_trigger_login regression test

Fix instable 006_login_trigger.pl test

Add support event triggers on authenticated login

Skip checking of scan keys required for directional scan in B-tree

Describe hash join implementation

Allocate hash join files in a separate memory context

Improve comments for trivial_subqueryscan().

Disable asynchronous execution if using gating Result nodes.

Allow asynchronous execution in more cases.

Doc: Further update documentation for asynchronous execution.

Fix rescanning of async-aware Append nodes.