ANALYZE FORMAT=JSON Examples

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Example #1

analyze FORMAT=JSON
select count(*)
from customer
where
  (select sum(o_totalprice) from orders where o_custkey=c_custkey) > 1000*1000;

EXPLAIN: { "query_block": { "select_id": 1, "r_loops": 1, "r_total_time_ms": 39872, "table": { "table_name": "customer", "access_type": "index", "key": "i_c_nationkey", "key_length": "5", "used_key_parts": ["c_nationkey"], "r_loops": 1, "rows": 150303, "r_rows": 150000, "r_total_time_ms": 270.3, "filtered": 100, "r_filtered": 60.691, "attached_condition": "((subquery#2) > <cache>((1000 * 1000)))", "using_index": true }, "subqueries": [ { "query_block": { "select_id": 2, "r_loops": 150000, "r_total_time_ms": 39531, "table": { "table_name": "orders", "access_type": "ref", "possible_keys": ["i_o_custkey"], "key": "i_o_custkey", "key_length": "5", "used_key_parts": ["o_custkey"], "ref": ["dbt3sf1.customer.c_custkey"], "r_loops": 150000, "rows": 7, "r_rows": 10, "r_total_time_ms": 39208, "filtered": 100, "r_filtered": 100 } } } ] } }

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