Changes

• Rewrote tokenizer.
• Rewrote entire query parser.
  • Parsers are now separated into separate static classes for each query type.
  • Parsers are now reusable, allowing for the condition parser, field parser and the like to be reused inside other query parser types.
• Functions are now fully recursive and are parsed in select fields, group by, order by, insert, update, select, where clause and join clauses.
• Update statements now allow for joins.
• Delete statements now allow for joins.
• Introduced "insert select from" statements.
• Temporarily removed support for procedures, they will need to be reimplemented.
• Major changes to the way that indexes are selected and used. Multiple values for a single index are now handled in one index lookup operation.
• Condition parser rewrite is now more robust and understandable.
• Introduction of new dapper like queries using classes as return objects.
• Introduction of parameterized queries prevents sql-injection attacks.
• Scaler and aggregate function parser rewrite allowing for reusability in various parts of queries.
• Added inline query string concatenation.
• Added query field type detection for inline math and string aggregation to coexist without "casting" which would be found in other RDBMSs.
• Added windowing functionality with TOP and OFFSET.

Remaining to-do:

• Reimplement "SELECT INTO".
• Reimplement stored procedures.
• More robust parser validation.

What's Changed

• Implementation of robust parser in PR https://github.com/NTDLS/NTDLS.Katzebase.Server/pull/68

Full Changelog: https://github.com/NTDLS/NTDLS.Katzebase.Server/compare/0.15.0...0.16.0

database document-database nosql rdbms