Effective in version 10.4.0, you can read or write data of the NUMERIC data type to Google BigQuery. The NUMERIC data type is an exact numeric value with 38 digits of precision and 9 decimal digits of scale. When you read or write the NUMERIC data type, the PowerCenter Integration Service maps the NUMERIC data type to the Decimal transformation data type and the allowed precision is up to 28 and scale upto 9.
For more information, see the
Informatica 10.4.0 PowerExchange for Google BigQuery User Guide for PowerCenter