parser
pg_query
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| parser | pg_query | |
|---|---|---|
| 3 | 1 | |
| 1,395 | 752 | |
| 1.0% | 1.5% | |
| 3.2 | 6.3 | |
| 5 months ago | about 2 months ago | |
| Go | C | |
| Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
parser
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sqlc: Generating go code from sql statements
For MySQL the situation is a bit different. sqlc uses the parser of TiDB (https://github.com/pingcap/parser), which is a parser that aims to be basically compatible with MySQL, but is quite young and is not a MySQL parser. The most basic queries work, but even simple joins or aggregations usually result in variables with unknown data types or wrong nullability. So you loose a lot of the benefits of sqlc. Manual type annotations for MySQL also do not work most of the time. They are simply ignored and forwarded to MySQL as invalid query if they do not occur on a place where sqlc is expecting them.
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Wp-SQLite: WordPress running on an SQLite database
This is a disaster waiting to happen. Regular expressions should never be used to parse non-regular languages, of which SQL is one.
There are a variety of mature MySQL dialect parsers available[1][2], and MySQL should have its own public APIs for transforming a query into an AST. Any of those would be a safer and more correct alternative.
[1]: https://github.com/pingcap/parser
[2]: https://github.com/square/mysql-parser
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Open Source SQL Parsers
Pingcap parser is a MySQL parser in Go.
pg_query
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Open Source SQL Parsers
Ruby : pg_query
What are some alternatives?
ANTLR - ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
mo-sql-parsing - Let's make a SQL parser so we can provide a familiar interface to non-sql datastores!
pg_query_go - Go library to parse and normalize SQL queries using the PostgreSQL query parser
zetasql - ZetaSQL - Analyzer Framework for SQL
libpg_query - C library for accessing the PostgreSQL parser outside of the server environment
pg-query-emscripten - Emscripten Port of pg_query to easily play with it in the browser
pglast - PostgreSQL Languages AST and statements prettifier: master branch covers PG10, v2 branch covers PG12, v3 covers PG13, v4 covers PG14, v5 covers PG15, v6 covers PG16
pg_parse - PostgreSQL parser for Rust that uses the actual PostgreSQL server source to parse SQL queries and return the internal PostgreSQL parse tree.
sqlparse - A non-validating SQL parser module for Python
pgsql-parser - PostgreSQL Query Parser for Node.js