fix: some problems of parser

enh: set vnode standby if drop it

feat(stream): create sub table

enh(stream): forbid indefinite row functions for streams

enh(query): enable stddev function distributed splitting

enh: drop sma while drop stb and db

fix(stream): build table name

enh(query): avg function enable splitting

enh(tmq): put offset store into vnode

opt: optimize generating groupid in partition/group by tag

test: reopen one case

refactor(sync): update replica index in snapshot sender