feat(stream): drop task

enh(query): add derivative function.

feat: add table merge scan operator

test:modify testcase of muti-mnode

test:modify  testcase of muti-mnode

fix: adjust log

test: update case for fix TD-16538

feat: support compute only use qnode

feat: increase enable and sysinfo limits for user privilege

refactor(sync): do not heartbeat when 1 replica

feat(stream): stream state&session support partition by

feat(stream): trigger mode add max delay

enh(sync): adjust errno