sandronator/finetuning_aufgabe4
1
0
Fork 0
mirror of https://github.com/sandronator/finetuning_aufgabe4.git synced 2026-09-04 00:26:06 +02:00
Code Issues Packages Projects Releases Wiki Activity

minor changes

Browse Source
This commit is contained in:
Sandro Fuetsch Titan
2026-05-26 20:13:40 +02:00
parent edfd198bcd
commit 3c3e10fd78
6 changed files with 25 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
main.py
+12 -3
View File
@@ -15,33 +15,42 @@ if __name__ == '__main__':
# Aufgabe 1
join_manager = Manager(BaseStrategy(conn_postsql, db_post, queries_postgres["with_index"]))
# join_manager.setup_db("no-index")
# join_manager.execute() # 3 Mrd. Tupel via Kreuzprodukt -> > 10 min
# join_manager.execute() # 3 Billionen. Tupel via Kreuzprodukt -> > 10 min
join_manager.setup_db("unique-publ")
join_manager.setStrategyName("unique-publ")
join_manager.execute()
join_manager.setup_db("cl-both")
join_manager.setStrategyName("cl-both")
join_manager.execute()
# Aufgabe 2 — vorheriger Lauf war 'cl-both' (CLUSTER hat Tabelle physisch sortiert);
# Aufgabe 2
# reload_data=True stellt die ursprüngliche Ladereihenfolge wieder her.
join_manager.setStrategy(NestedInnerLoopStrategy(conn_postsql, db_post, queries_postgres["with_index"]))
join_manager.setup_db("nc-publ", reload_data=True)
join_manager.setStrategyName("nc-publ")
join_manager.execute()
join_manager.setup_db("nc-auth")
join_manager.setStrategyName("nc-auth")
join_manager.execute()
join_manager.setup_db("nc-both")
join_manager.setStrategyName("nc-both")
join_manager.execute()
# Aufgabe 3 — Tabelle ist noch im Original-Layout, kein Reload nötig.
# Aufgabe 3
join_manager.setStrategy(SortMergeStrategy(conn_postsql, db_post, queries_postgres["no_index"]))
join_manager.setup_db("no-index")
join_manager.setStrategyName("no-index")
join_manager.execute()
join_manager.setQueries(queries_postgres["with_index"])
join_manager.setup_db("nc-both")
join_manager.setStrategyName("nc-both")
join_manager.execute()
join_manager.setup_db("cl-both")
join_manager.setStrategyName("cl-both")
join_manager.execute()
# Aufgabe 4 — wieder vom CLUSTER-Zustand wegkommen.
join_manager.setStrategy(HashJoinStrategy(conn_postsql, db_post, queries_postgres["no_index"]))
join_manager.setup_db("no-index", reload_data=True)
join_manager.setStrategyName("nc-publ")
join_manager.execute()