Bitmap indexes are a good alternative to Btree index nodes when the columns to be indexed contain only a few values.

Question

Quizplus · Accepted Answer

Bitmap indexes are designed to handle columns with a low number of distinct values. They work by representing each value as a bit in a bitmap, which allows for efficient scans and filtering of data. Btree indexes, on the other hand, are better suited for columns with high cardinality, where the values are distributed more evenly.

Bitmap Indexes Are a Good Alternative to Btree Index Nodes