The JOIN_ROWS_PRODUCED_LIMIT query option limits the number of join rows produced by a join node and is used to prevent runaway join queries. A query is canceled when any one of the joins in the query produces more rows (totaled across all instances of that join) than the specified limit set by the JOIN_ROWS_PRODUCED_LIMIT option.

This limit is checked periodically, so it is possible that the actual number of rows produced may be slightly higher than the limit.

The default value of 0 specifies that there is no limit on the number of join rows produced.


Allowed values: 0 or positive numbers

Default: 0

Added in: Impala 4.0