[TD-3107]<fix>: handle *Too many sync fwd infos* error crash with bat…

[TD-2008]<fix>: min(tsHttpMaxThreads) <- 2, default(tsHttpMaxThreads)…

[td-3016] <fix>: fix unsigned sum error.

Update docs.md

[TD-2271]<doc>: add Error Code and Message for JDBC-driver,JNI method and TDengineError

[TD-2639] <docs>: add description about normal node can redirect to m…

[TD-3073]<fix>: fix syncing role not displayed issue

[TD-3092] <doc>: refine grafana plugin document.

[TD-3023]<fix>Duplicate date type redefined

[TD-2639] <docs>: clarify keyword stable support relate to system ver…

[TD-3085] <fix>: support insert speed info.

[TD-2545]fix async log issue

[TD-2950]fix conflicted tmp file name issue

[TD-3041]fix dead loop caused by table meta error

[TD-3072]jdbc subscribe crash issue

[TD-2682]add showed result rows num limitation in taos

[TD-3063]taosd crashes for last_row query

Feature/query

Feature/td 2868

[TD-3075]<hotfix>: fix SBlockCol offset overflow