Use JDBC ResultSet and can not get the schema

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#3,310 opened on Jun 9, 2023 0 comments 0 reactions 1 assignee Claimed by @tobegit3hub View on GitHub

high-priority java sdk

Description

Some important methods are not implemented and we can not get Schema from standard ResultSet object.

![7e1bdedbceb6813e920a8a62c812e4be](https://github.com/4paradigm/OpenMLDB/assets/2715000/d1b9521e-083f-45eb-8c61-7f41a528d511)

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