clementi_hw2_submission #13
Open
+712
−29
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…because they both take 45 min to execute
…ed by Penn's generalized campus
mjumbewu
reviewed
Jan 3, 2022
| group by shape_id | ||
| ) | ||
|
|
||
| select distinct(t.trip_headsign) as trip_headsign, st_length(r.the_line_geom) as trip_length |
There was a problem hiding this comment.
Just to be clear, distinct is not a function. Rather select distinct is a type of select. So the distinct applies to the entire set of fields you're selecting. This is the same as:
select distinct
t.trip_headsign as trip_headsign,
st_length(r.the_line_geom) as trip_length
from ...The only reason I'm calling it out is because you're writing distinct as if it only applies to the trip_headsign field and I just want to be clear it does not.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
I hope you enjoy these works of art. A heads up - I did not solve my Q6 & 7 optimization problem, so they run, they just take 45 minutes... I've included screenshots of the answers and the time it took to execute.