[PARQUET-2237] Improve performance when filters in RowGroupFilter can match exactly

• Type: Improvement
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Assignee: Mars
• Reporter: Mars
• Created: 04/Feb/23 09:08
• Updated: 22/Apr/23 17:36

Description

If we can accurately judge by the minMax status, we don’t need to load the dictionary from filesystem and compare one by one anymore.

Similarly , Bloomfilter needs to load from filesystem, it may costs time and memory. If we can exactly determine the existence/nonexistence of the value from minMax or dictionary filters , then we can avoid using Bloomfilter to Improve performance.

For example,

1. read data greater than x1 in the block, if minMax in status is all greater than x1, then we don't need to read dictionary and compare one by one.
2. If we already have page dictionaries and have compared one by one, we don't need to read BloomFilter and compare.