JSqlParser
rhombus-brainstorming
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JSqlParser | rhombus-brainstorming | |
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4 | 7 | |
4,909 | 151 | |
2.1% | - | |
9.2 | 4.4 | |
4 days ago | over 2 years ago | |
Java | Racket | |
Apache License 2.0 | GNU General Public License v3.0 or later |
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JSqlParser
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Semantic Diff for SQL
I wonder if this is a topical thread to check if anyone is aware of a Java based solution to parse a CREATE VIEW statement to get a mapping between the view columns and the corresponding source table columns. I checked out jsqlparser[0] and it does produce an AST which can be parsed using the visitor-pattern[1] but was wondering if there is a more "out-of-the-box" solution. Due to various reasons, querying the database information schema is not an option I can pursue.
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Open Source SQL Parsers
JSQLParser can parse multiple SQL dialects like MySQL, Postgres and Oracle. The grammar can be modified to support other SQL dialects.
- Let's write a compiler, part 5: A code generator
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Racket v8.0
Interesting coincidence - I'm working on a parser that parses the AST produced by JSqlParser[0] for a create view statement to generate mapping between the columns of a view and the columns of its underlying table. It is an interesting example of having to use the visitor pattern[1].
rhombus-brainstorming
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What drew you to Racket?
Once you become a skeptic, other warts began to appear such as the culture (1,2) of the language and one of the active academic members putting a lot of effort into changing the syntax. I concluded that I might as well spend my time just learning common lisp as then I might have a tool I could use. Everything is old in common lisp, and I am coming to recognize that as a good thing. Re-inventing the wheel is not always useful, and a few libraries that everyone uses means they probably function and build.
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Thoughts on Lisp and Racket
I believe you are right. I think Matthew Flatt mentioned it in one of his more recent talks. Chez scheme didn’t become the default implementation until Racket 8.0 which released Feb 2021 so it took awhile to iron out all the bugs.
They are still in the brainstorming phase and you can look at the issues in this GitHub link https://github.com/racket/rhombus-brainstorming to see what is being discussed
Matthew has been working on a [prototype](https://github.com/racket/rhombus-brainstorming/pull/163) that works on the current snapshot version of Racket.
It is possible to use to write some basic things and most existing Racket libraries are usable with the prototype.
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Racket v8.0
It is called rhombus and there is an open discussion going on at https://github.com/racket/rhombus-brainstorming
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On Lisp Syntax
rhombus-brainstorming
What are some alternatives?
Apache Calcite - Apache Calcite
sqlglot - Python SQL Parser and Transpiler
zetasql - ZetaSQL - Analyzer Framework for SQL
sqlparse - A non-validating SQL parser module for Python
Presto - The official home of the Presto distributed SQL query engine for big data
ANTLR - ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
queryparser - Parsing and analysis of Vertica, Hive, and Presto SQL.
vitess-sqlparser - simply SQL Parser for Go ( powered by vitess and TiDB )
sqlite-parser - JavaScript implentation of SQLite 3 query parser
libpg_query - C library for accessing the PostgreSQL parser outside of the server environment
emv-qrcode - Java Based EMV QR Code Generator and Parser (MPM, CPM)
antlr-tsql