MAX_SPILLED_RESULT_SPOOLING_MEM Query Option

Use the MAX_SPILLED_RESULT_SPOOLING_MEM query option to set the maximum amount of memory that can be spilled when spooling query results.

If the amount of memory exceeds this value when spooling query results, the coordinator fragment will block until the client has consumed enough rows to free up more memory.

The MAX_SPILLED_RESULT_SPOOLING_MEM query option is applicable only when query result spooling is enabled with the SPOOL_QUERY_RESULTS query option set to TRUE.

The value must be greater than or equal to the value of MAX_RESULT_SPOOLING_MEM.

Setting the option to 0 or -1 means the memory is unbounded.

Values below -1 are not allowed for this query option.

Type: INT

Default: 1024 * 1024 * 1024 (1 GB)

Added in: Impala 3.4