Bohu

bug: COPY INTO <table> FROM FILES BY URL can not work

5

**Summary** ### Table schema ``` CREATE TABLE IF NOT EXISTS blocks ( number BIGINT, hash STRING, parent_hash STRING, nonce STRING, sha3_uncles STRING, logs_bloom STRING, transactions_root STRING, state_root STRING, receipts_root STRING,...

Deploy should add how to create user and connection

1

**Summary** https://databend.rs/doc/deploy/deploying-databend#verifying-deployment We don't let users use the root account, root is only used for localhost, we should guide them to create a new user and connect.

[txn]: transaction rollback

2

to add

[tests]: unit test TODO

8

need to re-add

point queries/range queries based on MVCC

Replace status with CPU cache line friendly counter structure

it seems that's a memory usage amplification in cache limits.

to add

We need a non-block sharp-checkpoint. During the checkpoint, we CAN NOT: 0x00) block any client write/read

Run leaf MVCC garbage collection when serializing node to disk.