cdb compatible migrations

Remove transactions and make migrations not async

lint

fmt

clippy

diesel async TLS sslrootcert

lint

lint

support optional tls

format

more log

parallel inserst

lint

bigger pool

pool size 200

try bigger buffer

try fixed 100 insert size

use ahash   update rust

smaller batches, bigger pool

increase pool size to 800

small refac for readability

increase buffer to 150

try batch size 20

back to 100 buffer

refactor grpc into separate file

lint

try 40mb buffers

insert of 10 again

ARC instead of cloning txns

lint

avoid another clone

try size 50

try 100

tryp 65

Change threading model for higher parallelism and throughput (#249)

Co-authored-by: jillxuu <[email protected]>