What is a "Bitmap heap scan" in a query plan?

What is a "Bitmap heap scan" in a query plan?

postgresql indexing sql-execution-plan

postgresql

What is the difference between Seq Scan and Bitmap heap scan in postgres?

optimization postgresql query-optimization sql-execution-plan

postgresql

SQL explain plan: what is Materialize?

sql postgresql sql-execution-plan

postgresql

Nested Join vs Merge Join vs Hash Join in PostgreSQL

postgresql sql-execution-plan

postgresql

Keep PostgreSQL from sometimes choosing a bad query plan

database performance postgresql sql-execution-plan postgresql-performance

postgresql

What does "Recheck Cond" in Explain result mean?

postgresql sql-execution-plan

postgresql

Redundant data in update statements

sql postgresql hibernate jpa sql-execution-plan

postgresql

Query with ORDER BY is 13 times as slow when I add LIMIT 1

sql postgresql query-optimization sql-execution-plan

postgresql

What does loop in explain analyze statement mean?

sql postgresql select sql-execution-plan explain

postgresql

Postgres uses wrong index

postgresql indexing postgresql-performance sql-execution-plan

postgresql

SQL function very slow compared to query without function wrapper

postgresql function postgresql-performance sql-execution-plan

postgresql

How reliable is the cost measurement in PostgreSQL Explain Plan?

sql postgresql database-performance explain sql-execution-plan

postgresql

Why does vacuum analyze change query plan while analyze does not?

postgresql sql-execution-plan postgresql-9.4 vacuum autovacuum

postgresql

Postgresql - How to speed up for updating huge table(100 million rows)?

performance postgresql sql-update sql-execution-plan

postgresql

postgres not using index on SELECT COUNT(*) for a large table

performance postgresql indexing sql-execution-plan

postgresql