refactor: stream dispatch

enhance: remove assert

fix: error in deleting only tag columns

new API taos_stmt_reclaim_fields to reclaim TAOS_FIELD_E in a uniform…

enh: optimize drop when scan exec

enh: put func state into tdb

fix: some query tasks not end when vnode stopped

avoid invalid free

fix(meta/snap): return -1 when decoder meta entry failed

fix: escape error in create topic/stream

fix(tdb): free stack celldecoder's pVal

refact: adjust sync log

fix(query): fix count/hyperloglog return additional row in group by when queryPolicy is set to 3.

Fix/xsren/win sort & mac fqdn

fix:fill operator fill next issue