StorageRabbitMQ added UVLoop

Restrict mutations for engines which doesn't support them

* Support for MYSQL_OPT_RECONNECT option

It can now be controlled by .opt_reconnect = {true|false} parameter in
the mysql replica config section

rabbitmq: fix bug when late onReady callback causes duplicates

fix the metadata leak when the Replicated*MergeTree with custom ZooKeeper cluster is dropped

continue of #19487

Allow to drop readonly tables

Fix __has_feature macros under gcc

DOCSUP-5822: Document the accurateCastOrNull function.

mysqlxx::PoolWithFailover: Randomize list of same-priority replicas

Move joinGet into StorageJoin

Protect JoinSource with lock, add test

Add comments about locking logic

Persistent coordination log storage

Better tests for protobuf format #2.

[Docs]fix mistype in avg

Fix buffer size for trace collection

Merge pull request #20294 from sevirov/sevirov-DOCSUP-6294-document_parseDateTimeBestEffortUSOrZero_parseDateTimeBestEffortUSOrNull_functions

DOCSUP-6294: Document the parseDateTimeBestEffortUSOrZero and parseDateTimeBestEffortUSOrNull functions

Fix undefined-behavior in ReservoirSamplerDeterministic.h

disable null_as_default when type is Nullable