Query Planning & Statistics (EXPLAIN ANALYZE) Quiz Home › PostgreSQL DBA › Query Planning & Statistics (EXPLAIN ANALYZE) 🔍 Postgres Database Administration – Query Planning & Statistics (EXPLAIN ANALYZE) 20 questions · 15 min timer · Explanations included · Free 1. In the context of EXPLAIN ANALYZE, what does the 'Rows Removed by Filter' metric indicate? The number of rows that were deleted from the table. The number of rows that were not returned due to a WHERE clause filter. The number of rows that were updated during the query execution. The number of rows that were inserted into the table. None 1 out of 20 2. What does the 'Buffers Hit' metric in EXPLAIN ANALYZE indicate? The number of times a query was executed. The number of buffer cache hits during query execution. The number of rows returned by the query. The number of disk blocks read during query execution. None 2 out of 20 Loading questions... 3 out of 20 Loading questions... 4 out of 20 Loading questions... 5 out of 20 Loading questions... 6 out of 20 Loading questions... 7 out of 20 Loading questions... 8 out of 20 Loading questions... 9 out of 20 Loading questions... 10 out of 20 Loading questions... 11 out of 20 Loading questions... 12 out of 20 Loading questions... 13 out of 20 Loading questions... 14 out of 20 Loading questions... 15 out of 20 Loading questions... 16 out of 20 Loading questions... 17 out of 20 Loading questions... 18 out of 20 Loading questions... 19 out of 20 Loading questions... 20 out of 20 Click Submit to see your final score! Previous Start Quiz Next Time's upTime is Up!
