collective/cdsc_reddit
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Create a second dataset sorted by author.

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This commit is contained in:
Nate E TeBlunthuis 2020-07-05 23:24:40 -07:00
parent 6d4344355b
commit 67857a3b05
1 changed files with 6 additions and 3 deletions
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comments_2_parquet.py
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@ -1,7 +1,7 @@
#!/usr/bin/env python3
import pyspark
from pyspark.sql import functions as f
nfrom pyspark.sql import functions as f
from pyspark.sql.types import *
from pyspark import SparkConf, SparkContext
from pyspark.sql import SparkSession, SQLContext
@ -128,5 +128,8 @@ df = df.withColumn("Month",f.month(f.col("CreatedAt")))
df = df.withColumn("Year",f.year(f.col("CreatedAt")))
df = df.withColumn("Day",f.dayofmonth(f.col("CreatedAt")))
df = df.withColumn("subreddit_hash",f.sha2(f.col("subreddit"), 256)[0:3])
df = df.sort(["subreddit","author","link_id","parent_id","Year","Month","Day"],ascending=True)
df.write.parquet("/gscratch/comdata/output/reddit_comments.parquet", partitionBy=["Year",'Month'],mode='overwrite')
df2 = df.sort(["subreddit","author","link_id","parent_id","Year","Month","Day"],ascending=True)
df2.write.parquet("/gscratch/comdata/output/reddit_comments_by_subreddit.parquet", partitionBy=["Year",'Month'],mode='overwrite')
df3 = df.sort(["author","CreatetdAt","subreddit","link_id","parent_id","Year","Month","Day"],ascending=True)
df3.write.parquet("/gscratch/comdata/output/reddit_comments_by_author.parquet", partitionBy=["Year",'Month'],mode='overwrite')