feat: bsma aggr data optimization

fix(query): alter the type of result of the length function.

refactor(index): refactor index code

test: add test case for checking network by taos

test : add char_length case

refactor(query): remove redundant attributes in some structs.

feat(query): add spread function

feat: migrate tsdb read interface to vnode

fix(os): fix win open file error.

refactor(rpc): refactor rpc code

fix(query): show tables in information_schema db.

TD-14297

fix(stream): interval status do not reset

enh: add tdSRowSetTpInfo method