> A fundamental decision we've made for the pganalyze Indexing Engine is that we break down queries into smaller parts we call "scans". Scans are always on a si

> A fundamental decision we've made for the pganalyze Indexing Engine is that we break down queries into smaller parts we call "scans". Scans are always on a single table, and you may be familiar with this concept from reading an EXPLAIN plan. For example, in an EXPLAIN plan you could see a Sequential Scan or Index Scan, both representing a different scan method for the same scan on a given table. Sequential scan == Full table scan: https://en.wikipedia.org/wiki/Full_table_scan https://en.wikipedia.org/wiki/Full_table_scan