Environment Variables Overview

FastBCP supports several environment variables to customize its behavior. This page provides a comprehensive overview of all available environment variables.

Quick Reference Table

Variable	Type	Default	Category	Description
FASTBCP_CLOUD_ISBUFFERED	True / False	False	Cloud Upload	Enables buffered cloud uploads for better performance
FASTBCP_TMPPATH	Directory path	System temp	Cloud Upload	Base directory for temporary files during buffered uploads
FASTBCP_CLOUD_MAXUPLOADTHREAD_PER_STREAM	Integer (> 0)	8 or 2	Cloud Upload	Maximum parallel upload threads per cloud stream
FASTBCP_RGSIZE	Integer (> 0)	1000000	Parquet	Row group size for Parquet files
FASTBCP_UID_STRING_CASING	lower / upper	lower	Output	Casing for UID-to-string conversion (RFC 4122)
FASTBCP_DATEFORMAT	Format string	yyyy-MM-dd	Output	Custom date format string for date-to-string conversion