Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Chapter7 #54

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

Chapter7 #54

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
97c6401
Fixed issue #40, problem with map funciton in chapter 6
JoeKastner Mar 10, 2020
5d9c0d0
Fixed issue # 22, chapter 6 working with JSON
JoeKastner Mar 10, 2020
56ed763
Updated missing python example for Pivot from pg. 135
JoeKastner Mar 12, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 3 additions & 3 deletions code/Structured_APIs-Chapter_6_Working_with_Different_Types_of_Data.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -310,13 +310,13 @@ def color_locator(column, color_string):

# COMMAND ----------

df.select(map(col("Description"), col("InvoiceNo")).alias("complex_map"))\
df.select(create_map(col("Description"), col("InvoiceNo")).alias("complex_map"))\
.selectExpr("complex_map['WHITE METAL LANTERN']").show(2)


# COMMAND ----------

df.select(map(col("Description"), col("InvoiceNo")).alias("complex_map"))\
df.select(create_map(col("Description"), col("InvoiceNo")).alias("complex_map"))\
.selectExpr("explode(complex_map)").show(2)


Expand All @@ -331,7 +331,7 @@ def color_locator(column, color_string):
from pyspark.sql.functions import get_json_object, json_tuple

jsonDF.select(
get_json_object(col("jsonString"), "$.myJSONKey.myJSONValue[1]") as "column",
get_json_object(col("jsonString"), "$.myJSONKey.myJSONValue[1]").alias("column"),
json_tuple(col("jsonString"), "myJSONKey")).show(2)


Expand Down
3 changes: 3 additions & 0 deletions code/Structured_APIs-Chapter_7_Aggregations.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -179,3 +179,6 @@

# COMMAND ----------

pivoted.where("date > '2011-12-05'")\
.select("date", "`USA_sum(CAST(Quantity AS BIGINT))`")\
.show()