fix(query): fix avg/sum function result overflown output inf/nan

fix(stream): double free

fix(query): remove redundant definition of stream table in mnode.

enh: add column length error retry

fix(query): add finalize for first function.

test: case for alter stable

fix(query): prepare enough buffer before convert string.

refactor: use tagver and colver insteadof sversion

feat: scheduler async api

fix(stream): function error

feat: add vgroup for tsma

feat(stream): stream final session operator

feat: seperate data schema version and tag schema version

fix: some problems of rollup sma

fix(query): free the cursor when all data retrieved immediately.