如何使用antlr创建SQL Select查询解析器？

Question

i am using squiggle to create dynamic select queries for postgresql, in one point of my application i need to reverse engineer the created select query and extract columns, tables, joins, orders,group by and .... from it, i googled a bit and found general sql parser which meets my demands but i need an open source solution to be able to modify it as i wish, i googled a bit more and read some where that i need antlr to write my own parser like fellas in hibernate did. the question is i don't know how to use it and not able to find an easy to understand example. the more important question is, considering scope of problem ( a select query) do i really need antlr to do this? thank you

Answer 1

Don't reinvent the wheel. Use for example JSqlParser (github/jsqlparser). It comes with examples of extracting tablenames.