Jiabao Sun created CALCITE-6008: ----------------------------------- Summary: ARRAY_AGG should returns ARRAY nullable. Key: CALCITE-6008 URL: https://issues.apache.org/jira/browse/CALCITE-6008 Project: Calcite Issue Type: Bug Reporter: Jiabao Sun
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 message was sent by Atlassian Jira (v8.20.10#820010)