msg queue,alter table test ok
Merge remote-tracking branch 'origin/v0.2' into zhaoyang
Merge remote-tracking branch 'origin/v0.2' into zhaoyang
msg queue addition about schema,file
Merge remote-tracking branch 'origin/zhuqihan' into zhaoyang
modify drop schema
Merge remote-tracking branch 'origin/v0.2' into zhaoyang
Add new file creation policy for data loading system; Change MFile defination and related OR mappings.
Merge remote-tracking branch 'origin/zhuqihan' into v0.2, OK
modify msg param_keys type to list
Fix split_name miss typo in Hive.g
Merge from origin/zhaoyang's branch for msg notifier.
Push MFile's objid on REP_FILE_CHANGE event; Push dbname and tablename on CREATE_FILE event.
Merge remote-tracking branch 'origin/zhaoyang' into v0.2, OK
Add load_status to MFile for load system; DM send rep/del request in standalone thread to increase performance; Allocate new file in table's node group; Optimize findbackupdevice; Create root user automatically; Unit test for file based migration; Implement reopen file; Fix alter_table msg handling.
add grant schema
Merge remote-tracking branch 'origin/v0.2' into zhuqihan