Export PostgreSQL to Local Files in JSON
Fast, parallel data export with zero intermediate storage
Terminal
.\FastBCP.exe `
--connectiontype "pgsql" `
--server "host.domain | host.domain,port | host.domain,port/service" `
--database "tpch" `
--trusted `
--sourceschema "tpch10" `
--sourcetable "orders" `
--query "SELECT * FROM tpch10.orders" `
--directory "D:\Data\fastbcpexport\raw\{sourcedatabase}\{sourceschema}" `
--fileoutput "{sourcetable}.json" `
--decimalseparator "." `
--dateformat "yyyy-MM-dd HH:mm:ss" `
--encoding "UTF-8" `
--method "Ntile" `
--distributekeycolumn "o_orderkey" `
--paralleldegree -2 `
--merge false `
--runid "runidfromcaller"Source - PostgreSQL
PostgreSQL is a powerful and robust open-source relational database. FastBCP optimizes exports from PostgreSQL using its native connector for excellent performance.
Features:
- •Direct streaming read from database
- •Full support for PostgreSQL data types
- •Secure SSL connections
Parallel Method - Ntile
Divides data into N equal partitions based on a numeric column.
Requirement: Requires a numeric distribution column
Available parallel methods with PostgreSQL:
Output Format - JSON (JavaScript Object Notation)
JSON is the most widely used data exchange format on the web. FastBCP exports data to JSON Lines (NDJSON) format, with one record per line for efficient streaming.
Features:
- •JSON Lines (NDJSON) format
- •One record per line for streaming
- •UTF-8 encoding
- •Compatible with all JSON parsers
Destination - Local File System
FastBCP exports data directly to the local file system, ideal for on-premise processing, testing, or archiving.
Storage Type:
Local Disk
Features:
- •Direct write to local storage
- •No network overhead
- •Flexible path configuration
- •Perfect for development and testing
