Export PostgreSQL to OneLake in Parquet

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}.parquet" `
--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 - Apache Parquet

Parquet is a columnar file format optimized for analytical processing. FastBCP exports to Parquet with compression and type preservation, ideal for data lake architectures.

Features:

•Columnar storage for efficient analytics
•Integrated compression (Snappy, Gzip)
•Full data type preservation
•Optimized for big data tools (Spark, Hadoop)

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.