SKIP_STATISTICS

Directs the optimizer to produce a query plan that incorporates only the minimal statistics that are collected by ANALYZE_ROW_COUNT. The optimizer ignores other statistics that would otherwise be used, that are generated by ANALYZE_STATISTICS and ANALYZE_STATISTICS_PARTITION. This hint is especially useful when used in queries on small tables, where the amount of time required to collect full statistics is often greater than actual execution time.

Syntax

SELECT /*+SKIP_STAT[ISTIC]S*/

EXPLAIN output

EXPLAIN returns the following output for a query that includes SKIP_STATISTICS (using its shortened form SKIP_STATS):

=> EXPLAIN SELECT /*+ SKIP_STATS*/ customer_key, customer_name, customer_gender, customer_city||', '||customer_state, customer_age
    FROM customer_dimension WHERE customer_region = 'East' AND customer_age > 60;

 QUERY PLAN DESCRIPTION:
 ------------------------------

 EXPLAIN SELECT /*+ SKIP_STATS*/ customer_key, customer_name, customer_gender, customer_city||', '||customer_state,
 customer_age FROM customer_dimension WHERE customer_region = 'East' AND customer_age > 60;

 Access Path:
 +-STORAGE ACCESS for customer_dimension [Cost: 2K, Rows: 10K (STATISTICS SKIPPED)] (PATH ID: 1)
 |  Projection: public.customer_dimension_b0
 |  Materialize: public.customer_dimension.customer_age, public.customer_dimension.customer_key, public.customer_dimensi
on.customer_name, public.customer_dimension.customer_gender, public.customer_dimension.customer_city, public.customer_di
mension.customer_state
 |  Filter: (public.customer_dimension.customer_region = 'East')
 |  Filter: (public.customer_dimension.customer_age > 60)
 |  Execute on: All Nodes
...