scram-sha-256 authentication on the PostgreSQL side as a Clickhouse PostgreSQL engine results in Clickhouse errors and crashes

[F0XMa5t3r]

Clickhouse version 21.5.5.12
PostgreSQL 13.2

All my attempts to use scram-sha-256 authentication on the PostgreSQL side end with the following errors and Clickhouse crashes:
2021.05.25 14:05:00.831300 [ 3291 ] {a1034aab-728f-445a-b6f9-7f242b972558} executeQuery: (from 127.0.0.1:32014, using production parser) CREATE DATABASE clickhouse ENGINE = PostgreSQL('192.168.235.25:5432','clickhouse','click house','ORA2.novalocal12');
2021.05.25 14:05:00.831557 [ 3291 ] {a1034aab-728f-445a-b6f9-7f242b972558} ContextAccess (default): Access granted: CREATE DATABASE ON clickhouse.*
2021.05.25 14:05:00.831631 [ 3291 ] {a1034aab-728f-445a-b6f9-7f242b972558} ContextAccess (default): Access granted: POSTGRES ON .
2021.05.25 14:05:00.831871 [ 3291 ] {a1034aab-728f-445a-b6f9-7f242b972558} PostgreSQLPoolWithFailover: Adding address host: 192.168.235.25, port: 5432 to connection pool
2021.05.25 14:05:00.831923 [ 3291 ] {a1034aab-728f-445a-b6f9-7f242b972558} PostgreSQLConnectionPool: New connection pool. Size: 16, blocks on empty pool: true
2021.05.25 14:05:00.846095 [ 3299 ] {} PostgreSQLConnection: New connection to 192.168.235.25:5432
2021.05.25 14:05:00.846300 [ 3291 ] {a1034aab-728f-445a-b6f9-7f242b972558} MemoryTracker: Peak memory usage (for query): 0.00 B.
2021.05.25 14:05:00.846613 [ 3291 ] {} TCPHandler: Processed in 0.015805277 sec.
2021.05.25 14:05:00.858308 [ 3280 ] {} BaseDaemon: Received signal 11
2021.05.25 14:05:00.858760 [ 3463 ] {} BaseDaemon: ########################################
2021.05.25 14:05:00.858906 [ 3463 ] {} BaseDaemon: (version 21.5.5.12 (official build), build id: DD2413BFFFAAA33DA8EAACC81543328CAEEC4A3E) (from thread 3299) (no query) Received signal Segmentation fault (11)
2021.05.25 14:05:00.859017 [ 3463 ] {} BaseDaemon: Address: 0x2000000000 Access: read. Address not mapped to object.
2021.05.25 14:05:00.859112 [ 3463 ] {} BaseDaemon: Stack trace: 0x13d7a3a5 0x13d567c8 0x13d54511 0x13d5d418 0x13d585a8 0xe99dfc8 0xe99d787 0xe99d9d8 0xe9a00ac 0xf056ea7 0xf05b015 0xef07880 0xef098d7 0xef0a652 0x87ddabf 0x87e1 6c3 0x7fc0851a6ea5 0x7fc084ecf9fd
2021.05.25 14:05:00.859282 [ 3463 ] {} BaseDaemon: 1. scram_HMAC_init @ 0x13d7a3a5 in ?
2021.05.25 14:05:00.859422 [ 3463 ] {} BaseDaemon: 2. pg_fe_scram_exchange @ 0x13d567c8 in /usr/bin/clickhouse
2021.05.25 14:05:00.859551 [ 3463 ] {} BaseDaemon: 3. pg_fe_sendauth @ 0x13d54511 in /usr/bin/clickhouse
2021.05.25 14:05:00.859650 [ 3463 ] {} BaseDaemon: 4. PQconnectPoll @ 0x13d5d418 in /usr/bin/clickhouse
2021.05.25 14:05:00.859707 [ 3463 ] {} BaseDaemon: 5. ? @ 0x13d585a8 in /usr/bin/clickhouse
2021.05.25 14:05:00.859839 [ 3463 ] {} BaseDaemon: 6. pqxx::connection::connection(char const*) @ 0xe99dfc8 in /usr/bin/clickhouse
2021.05.25 14:05:00.859911 [ 3463 ] {} BaseDaemon: 7. postgres::Connection::connectIfNeeded() @ 0xe99d787 in /usr/bin/clickhouse
2021.05.25 14:05:00.859975 [ 3463 ] {} BaseDaemon: 8. postgres::Connection::tryConnectIfNeeded() @ 0xe99d9d8 in /usr/bin/clickhouse
2021.05.25 14:05:00.860065 [ 3463 ] {} BaseDaemon: 9. postgres::PoolWithFailover::get() @ 0xe9a00ac in /usr/bin/clickhouse
2021.05.25 14:05:00.860149 [ 3463 ] {} BaseDaemon: 10. DB::DatabasePostgreSQL::fetchTablesList() const @ 0xf056ea7 in /usr/bin/clickhouse
2021.05.25 14:05:00.860217 [ 3463 ] {} BaseDaemon: 11. DB::DatabasePostgreSQL::removeOutdatedTables() @ 0xf05b015 in /usr/bin/clickhouse
2021.05.25 14:05:00.860349 [ 3463 ] {} BaseDaemon: 12. DB::BackgroundSchedulePoolTaskInfo::execute() @ 0xef07880 in /usr/bin/clickhouse
2021.05.25 14:05:00.860420 [ 3463 ] {} BaseDaemon: 13. DB::BackgroundSchedulePool::threadFunction() @ 0xef098d7 in /usr/bin/clickhouse
2021.05.25 14:05:00.860478 [ 3463 ] {} BaseDaemon: 14. ? @ 0xef0a652 in /usr/bin/clickhouse
2021.05.25 14:05:00.860553 [ 3463 ] {} BaseDaemon: 15. ThreadPoolImplstd::__1::thread::worker(std::__1::__list_iterator<std::__1::thread, void*>) @ 0x87ddabf in /usr/bin/clickhouse
2021.05.25 14:05:00.860612 [ 3463 ] {} BaseDaemon: 16. ? @ 0x87e16c3 in /usr/bin/clickhouse
2021.05.25 14:05:00.860706 [ 3463 ] {} BaseDaemon: 17. start_thread @ 0x7ea5 in /usr/lib64/libpthread-2.17.so
2021.05.25 14:05:00.860785 [ 3463 ] {} BaseDaemon: 18. clone @ 0xfe9fd in /usr/lib64/libc-2.17.so
2021.05.25 14:05:01.123631 [ 3463 ] {} BaseDaemon: Checksum of the binary: 80031837E47C71EF32BBB4A0398E8552, integrity check passed.
2021.05.25 14:05:20.922096 [ 3274 ] {} Application: Child process was terminated by signal 11.

Authentication settings on the PostgreSQL side from a file pg_hba.conf:
host all clickhouse 192.168.235.25/32 scram-sha-256

The strange thing is that on the Internet it was not possible to find information on these errors and on the supported authentication methods, their settings for the Clickhouse PostgreSQL engine.

When setting pg_hba.conf:
host all clickhouse 192.168.235.25/32 trust
or
host all clickhouse 192.168.235.25/32 password
Clickhouse is working fine.
clickhouse-server.log

[F0XMa5t3r]

Colleagues, is there any progress in resolving this issue?

[kssenii]

Sorry, it was stopped. I'll continue with it this week.