bb7ba00ccf
This PR support following functions:
1. Support content properties in backup stmt. It means user can backup only metadata or
meta+data which use content [METADATA_ONLY| ALL]attribute to distinguish.
2. Support exclude some tables in backup and restore stmt. This means that some
very large and unimportant tables can be excluded when the entire database is backed up.
3. Support backup and restore whole database instead of declaring each table name
in the backup and restore statement.
The backup and restore api has changed as following:
```
BACKUP SNAPSHOT [db_name].{snapshot_name}
TO 'repo_name'
[ON|EXCLUDE (
'table_name' [partition (p1,...)]
)]
[properties (
"content" = "metadata_only|all"
)]
RESTORE SNAPSHOT [db_name].{snapshot_name}
TO 'repo_name'
[EXCLUDE|ON (
'table_name' [partition (p1,...)]
)]
[properties (
)]
```
# fe-common This module is used to store some common classes of other modules. # spark-dpp This module is Spark DPP program, used for Spark Load function. Depends: fe-common # fe-core This module is the main process module of FE. Depends: fe-common, spark-dpp