wrap data source connection related columns(host, port, ...) with a new column "connection_info"
use tableReference in MDL manifest instead of refSql (ref: Wren Engine PR). This will benefit performance for small queries and no longer have to deal with SQL format.
tableReferencein MDL manifest instead of refSql (ref: Wren Engine PR). This will benefit performance for small queries and no longer have to deal with SQL format.