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pg-query-walker
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Analyzes a SQL query you pass in, and provides a list of all database tables and columns that the query references. Since it uses the PostgresQL query parser, it can process any valid PostgresQL query.
This npm
module walks thru any PostgresQL query, and enumerates all database tables and columns used.
$ npm install pg-query-walker
// Use the file system module to read SQL files
// and the query walker to analyze them
const fs = require('fs');
const walker = require('pg-query-walker');
// Analyze SQL from a file
const analysis = walker.analyzeSQL(fs.readFileSync('pets.sql', 'utf8'));
// Display the results
console.log('Tables Used: ', analysis.tables);
console.log('Columns Used: ', analysis.columns);
SELECT name, born_at, a.name AS species FROM pets
INNER JOIN animals a ON a.id = pets.animal_id
ORDER BY born_at
{
tables: ["animals", "pets"],
columns: { "animals.name",
"pets.born_at",
"pets.name" }
}
FAQs
Analyzes a SQL query you pass in, and provides a list of all database tables and columns that the query references. Since it uses the PostgresQL query parser, it can process any valid PostgresQL query.
We found that pg-query-walker demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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