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csv-to-pg

csv to pg statements

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npmnpm
Version
4.4.0
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Maintainers
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csv-to-pg

Create PostgreSQL statements from CSV files

Installation

npm install -g csv-to-pg

Usage

The idea for this library was to solve complex CSV scenarios, so currently each CSV requires a config file.

config

Here is an example of a config.yaml that we can use to parse a csv that has no headers, and uses tab-delimited elements:

input: "./myfile.tsv"
output: "./myfile.sql"
schema: myschema
table: mytable
delimeter: "\t"
headers:   # order of the headers
  - feature
  - category
  - days
  - start
  - end
fields:
  feature: text
  category: text
  days: int
  start: date
  end:
    type: date
    cast: date  # explicitly cast to a date type

You can also use JS files or JSON. If you use JS, you can also create ASTs for super custom inserts (read tests).

run it!

Once you have a config file, simply call it and point to the config:

csv2pg ./config.yaml

🧪 Testing

  • launchql/pgsql-test: 📊 Isolated testing environments with per-test transaction rollbacks—ideal for integration tests, complex migrations, and RLS simulation.
  • launchql/graphile-test: 🔐 Authentication mocking for Graphile-focused test helpers and emulating row-level security contexts.
  • launchql/pg-query-context: 🔒 Session context injection to add session-local context (e.g., SET LOCAL) into queries—ideal for setting role, jwt.claims, and other session settings.

🧠 Parsing & AST

  • launchql/pgsql-parser: 🔄 SQL conversion engine that interprets and converts PostgreSQL syntax.
  • launchql/libpg-query-node: 🌉 Node.js bindings for libpg_query, converting SQL into parse trees.
  • launchql/pg-proto-parser: 📦 Protobuf parser for parsing PostgreSQL Protocol Buffers definitions to generate TypeScript interfaces, utility functions, and JSON mappings for enums.
  • @pgsql/enums: 🏷️ TypeScript enums for PostgreSQL AST for safe and ergonomic parsing logic.
  • @pgsql/types: 📝 Type definitions for PostgreSQL AST nodes in TypeScript.
  • @pgsql/utils: 🛠️ AST utilities for constructing and transforming PostgreSQL syntax trees.

🚀 API & Dev Tools

  • launchql/server: ⚡ Express-based API server powered by PostGraphile to expose a secure, scalable GraphQL API over your Postgres database.
  • launchql/explorer: 🔎 Visual API explorer with GraphiQL for browsing across all databases and schemas—useful for debugging, documentation, and API prototyping.

🔁 Streaming & Uploads

  • launchql/s3-streamer: 📤 Direct S3 streaming for large files with support for metadata injection and content validation.
  • launchql/etag-hash: 🏷️ S3-compatible ETags created by streaming and hashing file uploads in chunks.
  • launchql/etag-stream: 🔄 ETag computation via Node stream transformer during upload or transfer.
  • launchql/uuid-hash: 🆔 Deterministic UUIDs generated from hashed content, great for deduplication and asset referencing.
  • launchql/uuid-stream: 🌊 Streaming UUID generation based on piped file content—ideal for upload pipelines.
  • launchql/upload-names: 📂 Collision-resistant filenames utility for structured and unique file names for uploads.

🧰 CLI & Codegen

  • @launchql/cli: 🖥️ Command-line toolkit for managing LaunchQL projects—supports database scaffolding, migrations, seeding, code generation, and automation.
  • constructive-io/constructive-gen: ✨ Auto-generated GraphQL mutations and queries dynamically built from introspected schema data.
  • @launchql/query-builder: 🏗️ SQL constructor providing a robust TypeScript-based query builder for dynamic generation of SELECT, INSERT, UPDATE, DELETE, and stored procedure calls—supports advanced SQL features like JOIN, GROUP BY, and schema-qualified queries.
  • @launchql/query: 🧩 Fluent GraphQL builder for PostGraphile schemas. ⚡ Schema-aware via introspection, 🧩 composable and ergonomic for building deeply nested queries.

Disclaimer

AS DESCRIBED IN THE LICENSES, THE SOFTWARE IS PROVIDED "AS IS", AT YOUR OWN RISK, AND WITHOUT WARRANTIES OF ANY KIND.

No developer or entity involved in creating this software will be liable for any claims or damages whatsoever associated with your use, inability to use, or your interaction with other users of the code, including any direct, indirect, incidental, special, exemplary, punitive or consequential damages, or loss of profits, cryptocurrencies, tokens, or anything else of value.

Education and Tutorials

📦 Package Management

  • pgpm: 🖥️ PostgreSQL Package Manager for modular Postgres development. Works with database workspaces, scaffolding, migrations, seeding, and installing database packages.

🧪 Testing

  • pgsql-test: 📊 Isolated testing environments with per-test transaction rollbacks—ideal for integration tests, complex migrations, and RLS simulation.
  • pgsql-seed: 🌱 PostgreSQL seeding utilities for CSV, JSON, SQL data loading, and pgpm deployment.
  • supabase-test: 🧪 Supabase-native test harness preconfigured for the local Supabase stack—per-test rollbacks, JWT/role context helpers, and CI/GitHub Actions ready.
  • graphile-test: 🔐 Authentication mocking for Graphile-focused test helpers and emulating row-level security contexts.
  • pg-query-context: 🔒 Session context injection to add session-local context (e.g., SET LOCAL) into queries—ideal for setting role, jwt.claims, and other session settings.

🧠 Parsing & AST

  • pgsql-parser: 🔄 SQL conversion engine that interprets and converts PostgreSQL syntax.
  • libpg-query-node: 🌉 Node.js bindings for libpg_query, converting SQL into parse trees.
  • pg-proto-parser: 📦 Protobuf parser for parsing PostgreSQL Protocol Buffers definitions to generate TypeScript interfaces, utility functions, and JSON mappings for enums.
  • @pgsql/enums: 🏷️ TypeScript enums for PostgreSQL AST for safe and ergonomic parsing logic.
  • @pgsql/types: 📝 Type definitions for PostgreSQL AST nodes in TypeScript.
  • @pgsql/utils: 🛠️ AST utilities for constructing and transforming PostgreSQL syntax trees.

📚 Documentation & Skills

  • constructive-skills: 📖 Platform documentation and AI agent skills — feature catalog, blueprint reference, SDK guides (i18n, billing, limits, events, uploads, security, entities, search, AI), and deployment guides.

Install skills for AI coding agents:

# All platform skills (security, blueprints, codegen, billing, etc.)
npx skills add constructive-io/constructive-skills

# Individual repo skills (pgpm, testing, CLI, search, etc.)
npx skills add https://github.com/constructive-io/constructive --skill pgpm
npx skills add https://github.com/constructive-io/constructive --skill constructive-testing

Credits

🛠 Built by the Constructive team — creators of modular Postgres tooling for secure, composable backends. If you like our work, contribute on GitHub.

Disclaimer

AS DESCRIBED IN THE LICENSES, THE SOFTWARE IS PROVIDED "AS IS", AT YOUR OWN RISK, AND WITHOUT WARRANTIES OF ANY KIND.

No developer or entity involved in creating this software will be liable for any claims or damages whatsoever associated with your use, inability to use, or your interaction with other users of the code, including any direct, indirect, incidental, special, exemplary, punitive or consequential damages, or loss of profits, cryptocurrencies, tokens, or anything else of value.

Keywords

csv

FAQs

Package last updated on 27 Jul 2026

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