Export PostgreSQL to OneLake 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 "onelake://workspace/lakehouse/fastbcpexports/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"

Get FastBCP

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 - Microsoft OneLake

OneLake is Microsoft Fabric's unified data lake. FastBCP exports data directly to OneLake workspaces, enabling seamless integration with Fabric analytics services.