Commit 89840d7

committed

Provide real selectivity estimators for inet/cidr operators.

This patch fills in the formerly-stub networksel() and networkjoinsel() estimation functions. Those are used for << <<= >> >>= and && operators on inet/cidr types. The estimation is not perfect, certainly, because we rely on the existing statistics collected for the inet btree operators. But it's a long way better than nothing, and it's not clear that asking ANALYZE to collect separate stats for these operators would be a win. Emre Hasegeli, with reviews from Dilip Kumar and Heikki Linnakangas, and some further hacking by me

1 parent f770870 commit 89840d7Copy full SHA for 89840d7

1 file changed

+977

-3

lines changed

src/backend/utils/adt
- network_selfuncs.c

1 file changed

+977

-3

lines changed

Comments

(0)

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Commit 89840d7

1 file changed

1 file changed

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

File tree

1 file changed

1 file changed

0 commit comments

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.