sqlparse
pg_query
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| sqlparse | pg_query | |
|---|---|---|
| 7 | 1 | |
| 3,581 | 752 | |
| - | 1.5% | |
| 8.2 | 6.3 | |
| 5 days ago | about 2 months ago | |
| Python | C | |
| BSD 3-clause "New" or "Revised" License | 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.
sqlparse
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Show HN: Databasediagram.com – Private, Text to Entity-Relationship Diagram Tool
Suggest checking out the sqlparse library for a way to do the different flavours without needing to address each case directly: https://github.com/andialbrecht/sqlparse
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Data Load Diagram
Gotcha, since we haven't actually written all of this yet I don't have any useful code snippets to share but we've discussed tackling the problem internally using something like sqlparse. You'd need to identify the relevant sql chunks, parse them for table dependency information and then create the relevant entities in whichever data lineage tool you were using.
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This Week In Python
sqlparse – A non-validating SQL parser module for Python
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Open Source SQL Parsers
Regular expressions is a popular approach to extract information from SQL statements. However, regular expressions quickly become too complex to handle common features like WITH, sub-queries, windows clauses, aliases and quotes. sqlparse is a popular python package that uses regular expressions to parse SQL.
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Automated SQL formatting checks
This one is not bad: https://github.com/andialbrecht/sqlparse.
- Let's write a compiler, part 5: A code generator
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BigQuery Lineage
We used this repo for this: https://github.com/andialbrecht/sqlparse. I may have miscommunicated. We didn't write the parser from scratch, we created a way for the parser to detect downstream and upstream dependencies of the resource.
pg_query
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Open Source SQL Parsers
Ruby : pg_query
What are some alternatives?
zetasql - ZetaSQL - Analyzer Framework for SQL
mo-sql-parsing - Let's make a SQL parser so we can provide a familiar interface to non-sql datastores!
pyparsing - Python library for creating PEG parsers [Moved to: https://github.com/pyparsing/pyparsing]
pg_query_go - Go library to parse and normalize SQL queries using the PostgreSQL query parser
Lark - Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.
libpg_query - C library for accessing the PostgreSQL parser outside of the server environment
PLY - Python Lex-Yacc
parser - A MySQL Compatible SQL Parser
sqlfluff - A modular SQL linter and auto-formatter with support for multiple dialects and templated code.
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
Pygments
pg_parse - PostgreSQL parser for Rust that uses the actual PostgreSQL server source to parse SQL queries and return the internal PostgreSQL parse tree.