Set Operations
and UNION ALL
return the rows that are found in either table. UNION
takes only distinct rows while UNION ALL
does not remove duplicates from the result rows.
and EXCEPT ALL
return the rows that are found in one table but not the other. EXCEPT
takes only distinct rows while EXCEPT ALL
does not remove duplicates from the result rows.
The optimizer rewrites the IN condition into a join and group operation. For streaming queries, the required state for computing the query result might grow infinitely depending on the number of distinct input rows. You can provide a query configuration with an appropriate state time-to-live (TTL) to prevent excessive state size. Note that this might affect the correctness of the query result. See query configuration for details.
The optimizer rewrites the operation into a join and group operation. For streaming queries, the required state for computing the query result might grow infinitely depending on the number of distinct input rows. You can provide a query configuration with an appropriate state time-to-live (TTL) to prevent excessive state size. Note that this might affect the correctness of the query result. See for details.