Jiabao-Sun opened a new pull request, #3430: URL: https://github.com/apache/calcite/pull/3430
ARRAY_AGG in BigQuery and Postgres returns NULL if there are zero input rows or expression evaluates to NULL for all rows. However, it will return `ARRAY<arg0> NOT NULL` in the return type of the function definition. https://cloud.google.com/bigquery/docs/reference/standard-sql/aggregate_functions#array_agg https://www.postgresql.org/docs/8.4/functions-aggregate.html -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@calcite.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
