feat:  change  index dynamicly 

fix:[TS638]diable tsdbReader open in streamScanOperator

enh: opt transport opt

test/TD-20331 add test case for performance_schama

fix: free thread save memory before set null

fix(query): set the correct rows in data block.

fix: refact client statistics collection

feat: compatible with older versions of wal

refactor: do some internal refactor and add some logs.

fix: not allow to read if sync is restoring

refactor: do some internal refactor and fix race condition.

fix:add limit for stream batch

docs: fix broken link