project_id field for all tables and topic field for embeddings requests may be null.
This complicates SQL queries, since one must perform checks such as project_id <> NULL or topic <> NULL to handle missing values.
We should consistently coalesce the missing values to the undefined string for all nullable fields.
project_idfield for all tables andtopicfield for embeddings requests may be null.This complicates SQL queries, since one must perform checks such as
project_id <> NULLortopic <> NULLto handle missing values.We should consistently coalesce the missing values to the
undefinedstring for all nullable fields.