Refactor stonedb #150

Job	Run time
DBMS Tests (Citus)	6m 40s
QPG Tests (CockroachDB)	6m 12s
DBMS Tests (ClickHouse)	12m 35s
DBMS Tests (Databend)	12m 36s
DBMS Tests (DuckDB)	5m 36s
DBMS Tests (H2)	5m 51s
DBMS Tests (MariaDB)	1m 58s
DBMS Tests (Materialize)	11m 33s
QPG Tests (Materialize)	6m 50s
DBMS Tests (MySQL)	12m 16s
DBMS Tests (PostgreSQL)	11m 10s
DBMS Tests (SQLite)	10m 43s
DBMS Tests (CockroachDB)	7m 10s
DBMS Tests (Apache Doris)	26s
Java 13 Compatibility (DuckDB)	2m 9s
Java 15 EA Compatibility (DuckDB)	1m 0s
General tests	2m 26s
Reducer Tests	39s
QPG Tests (SQLite)	5m 37s
DBMS Tests (StoneDB)	1m 26s
DBMS Tests (TiDB)	7m 19s
QPG Tests (TiDB)	6m 0s
DBMS Tests (YugabyteDB)	11m 28s
Java 14 Compatibility (DuckDB)	1m 10s
	2h 30m 50s

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