Release Notes
FIX BUGS: Revert "[TD-4533]: taosdemo resub if resubAfterConsume != -1 (#6243)" (#6289) [td-255]: fix crash caused by tag bind. [TD-2570]: [TD-3078]: fix arbitrator create time [TD-3197]: taosdemo and taosdump coverity scan issues. (#6207) [TD-3279]: memory link while perform delete action [td-4111]: fix bug for irate function. [TD-4243]:fix coredump when select _block_dist() from table [TD-4279]: fix mnode single online as master [TD-4296]: taosdemo sub keepProgress. (#6200) [TD-4313]: odbc example compile failed on Windows. (#6206) [TD-4322]: taosdemo query then fetch result. (#6210) [TD-4322]: taosdemo query then fetch result. (#6211) [TD-4323]: the deleted vnode does not need to commit, so as to speed up the deletion and avoid crash while balance [td-4351]: suppress error msg if super table is missing. [TD-4353]: taosdemo resub if resubAfterConsume != -1 (#6286) [TD-4353]: taosdemo resub if resubAfterConsume != -1 (#6287) [TD-4370]: squashed commit of python connector changes in develop (#6246) [td-4372]: fix the taosd server crash caused by dropping a child table, of which the indexed tag value is null. [TD-4382]: taosdemo query result file is null. (#6259) [TD-4382]: taosdemo query result file is null. (#6263) [TD-4384]: fixed an uninitialized bug [TD-4406]: taosdemo auto create table. (#6281) [TD-4417]: return database not ready if vnode status & role not ready [td-4446]: fix repeat import caused crash. [TD-4480]: fix DatabaseMetaData get wrong column value (#6381) [TD-4507]: disable jdbc build on windows for appveyor. (#6352) [TD-4507]: disable jdbc build on windows for appveyor. (#6353) [TD-4533]: taosdemo resub if resubAfterConsume != -1 (#6243)
ENHANCEMENTS: [td-4151]: improve the validation procedure of sql statement. [td-4231]: report error if only tags of the table are retrieved in the select clause when the filter condition only includes normal columns. [TD-4243]: block_dist percentile approximation to reduce memory usage especially for super table [TD-4243]:remove _block_dist() special dedicated column index [td-4314]:support top/bottom query on main query. [td-4520]: support the tbname column alias name.
NEW FEATURES: [TD-4068]: taosdemo support stmt. (#6270)
DOCS: [TD-2639]: correct database parameter about time precision. [TD-2639]: correct parameter about time precision. [TD-2639]: describe length limitation about tag names. [TD-2639]: fix example about transaction in SQL execution. [TD-2639]: fix typo about replica. [TD-3948]: column names can be away from table name in insert. [TD-3963]: allow alter some database parameters without reboot server. [TD-4089]: stopping taosd service may take remarkable time. [TD-4181]: update format of FAQ doc. [TD-4181]: update SQL related doc. [TD-4277]: update description about inserting into multi tables with auto creating table. [TD-4377]: fix files number calculation in vnode. [TD-4387]: fix broken link to server config doc. [TD-4533]: describe C/C++ & Java version of Prepare Statement api. [TD-4533]: describe parameter "size" in "setString" & "setNString". [TD-4533]: fix description about func "taos_stmt_bind_param_batch". [TD-4533]: "taos_stmt_bind_param" can be used in both INSERT & SELECT queries.
TEST: [TD-4122]: add test case [TD-4263]: update performance test script [TD-4420]: add test case [TD-4423]: add test case [TD-4435]: add test case [TD-4505]: add test case for last_row()