RUNTIME_FILTER_MIN_SIZE Query Option (Impala 2.6 or higher only)
RUNTIME_FILTER_MIN_SIZE query option
adjusts the settings for the runtime filtering feature.
This option defines the minimum size for a filter,
no matter what the estimates produced by the planner are.
This value also overrides any lower number specified for the
RUNTIME_BLOOM_FILTER_SIZE query option.
Filter sizes are rounded up to the nearest power of two.
Default: 0 (meaning use the value from the corresponding impalad startup option)
Added in: Impala 2.6.0
Because the runtime filtering feature applies mainly to resource-intensive and long-running queries, only adjust this query option when tuning long-running queries involving some combination of large partitioned tables and joins involving large tables.
Runtime Filtering for Impala Queries (Impala 2.5 or higher only), RUNTIME_FILTER_MODE Query Option (Impala 2.5 or higher only), RUNTIME_FILTER_MAX_SIZE Query Option (Impala 2.6 or higher only), RUNTIME_BLOOM_FILTER_SIZE Query Option (Impala 2.5 or higher only)