enh: add oper name while execute 'show transaction'

refactor(query): do some internal refactor about  the filter  and  interp  query.

fix(stream): data block capacity

fix(tsc):avoid invalid code

fix: avg function data scan optimization

fix: fix nchar compare issue

fix: request free sequence problem

* test(docs):update docs-example file structure

* test(docs):update docs-example references under zh and en

feat(wal): auto fix corrupt file

enh: added memory allocators for parser and planner