* feat: frontend instance
* no need to carry column length in `Column` proto
* add more tests
* rebase develop
* create a new variant with already provisioned RecordBatches in Output
* resolve code review comments
* new frontend instance does not connect datanode grpc
* add more tests
* add more tests
* rebase develop
Co-authored-by: luofucong <luofucong@greptime.com>
* address PR comments
address PR comments
use 3306 for mysql server's default port
upgrade metric to version 0.20
move crate "servers" out of "common"
make mysql io threads count configurable in config file
add snafu backtrace for errors with source
use common-server error for mysql server
add test for grpc server
refactor testing codes
fix rustfmt check
start mysql server in datanode
move grpc server codes from datanode to common-servers
feat: unify servers
* rebase develop and resolve conflicts
* remove an unnecessary todo
Co-authored-by: luofucong <luofucong@greptime.com>
* SelectExpr: change to oneof expr
* Convert between Vec<u8> and SelectResult
* Chore: use encode_to_vec and decode, instead of encode_length_delimited_to_vec and decode_length_delimited
* Chore: move bitset into separate file
* Grpc select impl
* feat: implement InsertExpr
* 1.InsertExpr reverted to previous version 2.add InsertBatch message
* add two SemanticTypes: TAG, TIMESTAMP
* chore: format proto files
* chore: add some comments about "Column"
* fix: rename "semanticType" -> "semantic_type"
* fix: unique number in InsertBatch
* fix: type of f64_values
* chore: move insertbatch and column to insert.proto
* chore: rename "ExprHeader" to "Header"
* fix: ExprHeader not found in this scope
* feat: add grpc impl
* feat: add grpc server
* some ut
* verson format: a.b
* code style
* admin request/response
* by cr
* admin api
* by cr
* chore: by cr
* chore: by cr