Comments (3)
You need to actually create them in your psql
environment. Writing them in the schema-indexes.sql
file doesn't do anything, it might just be for grading purposes.
After you run your CREATE INDEX ON ...
commands in psql
, you can check that they exist by running \d [INSERT TABLE NAME]
. The indexes should show up if they've been created correctly. Beware, creating these indexes can take anywhere from 5-40 minutes each.
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You can also make it so that the indexes will be created when you initialize your database. To do so, you can add this line to your Dockerfile:
COPY schema-indexes.sql /docker-entrypoint-initdb.d/02.sql
Note that everything in docker-entrypoint-initdb.d
is only run when initializing the database, so if you already have a database up and running, adding this line might not result in your indexes being created. So if this is the case @hfmandell's answer is probably the way to go.
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Thank you for the help! I was able to create the indexes in psql and then when I checked the answers and run time, I was able to get under 4 seconds for the pg_normalized_batch database, but got 5.5 seconds for pg_denormalized. I then stopped working for the night and just logged back into terminal and had to build the container again, load the load_tweets_parallel. sh file, and create the indexes again, but when I test the denormalized database, it is not running the indexes even though the indexes show up in psql when I run \d [table name]. Did anyone else run into this problem?
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