hi,all i'm liuxin, you can call me "ender", I lived in beijing,china. I'm glad to join hsqldb team and hope to give some contriutions to hsqldb. I started to study source code yesterday, especially jdbcConnection.java, jdbcStatement.java,Database.java, Parser.java,DatabaseCommandInterpreter.java... . I found a parser was build handly,not generated by machine ,it's very fast for parsing and executing sql, but the code is not easy to read and not very clear( maybe it's my problem :-) ), Maintenance would be annoying when store procedures are joined ,as fredt said, a grammar based approach is needed, I'm experienced in JavaCC, the following days i'm going to learn JFlex and Antler, try to find which is the fastest lexer. I'd like to do some work on grammar and tests.
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