From eeadba567a4b04bc0e6a1e6f1f1d762c2a1ad06f Mon Sep 17 00:00:00 2001
From: Glorfindel <gerwindegroot@gmail.com>
Date: Tue, 14 Apr 2020 08:44:30 +0200
Subject: [PATCH] HNQ views analysis

---
 .gitattributes                         |  1 +
 hnq-research/HNQ.backup.REMOVED.git-id |  1 -
 hnq-research/views-analysis.sql        | 70 ++++++++++++++++++++++++++
 3 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 .gitattributes
 delete mode 100644 hnq-research/HNQ.backup.REMOVED.git-id
 create mode 100644 hnq-research/views-analysis.sql

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..8b98847
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.backup filter=lfs diff=lfs merge=lfs -text
diff --git a/hnq-research/HNQ.backup.REMOVED.git-id b/hnq-research/HNQ.backup.REMOVED.git-id
deleted file mode 100644
index 57fddff..0000000
--- a/hnq-research/HNQ.backup.REMOVED.git-id
+++ /dev/null
@@ -1 +0,0 @@
-c5fd82755a0d2e7503c1f6f3d6c43b8e842422db
\ No newline at end of file
diff --git a/hnq-research/views-analysis.sql b/hnq-research/views-analysis.sql
new file mode 100644
index 0000000..86384c8
--- /dev/null
+++ b/hnq-research/views-analysis.sql
@@ -0,0 +1,70 @@
+-- HNQ analysis: https://meta.stackexchange.com/q/338009 --
+
+-- top sites (# of questions)
+WITH questionsBySite AS (
+SELECT site, COUNT(DISTINCT(question)) AS questions
+  FROM snapshots
+  WHERE timestamp >= '2019-08-01'
+  GROUP BY site),
+sitesByQuestions AS (SELECT RANK() OVER (ORDER BY questions DESC) AS rank, site, questions,
+  ROUND(100 * CAST(questions AS NUMERIC) / (SELECT SUM(questions) FROM questionsBySite), 2) AS percentage
+  FROM questionsBySite)
+SELECT * FROM sitesByQuestions
+  ORDER BY questions DESC;
+  
+-- top sites (# of spots)
+WITH spotsBySite AS (
+SELECT site, COUNT(*) AS spots
+  FROM snapshots
+  WHERE timestamp >= '2019-08-01'
+  GROUP BY site),
+sitesBySpots AS (SELECT RANK() OVER (ORDER BY spots DESC) AS rank, site, spots,
+  ROUND(100 * CAST(spots AS NUMERIC) / (SELECT SUM(spots) FROM spotsBySite), 2) AS percentage
+  FROM spotsBySite)
+SELECT * FROM sitesBySpots
+  ORDER BY spots DESC;
+
+-- sites with most HNQ views per hour
+WITH questionsBySite AS (
+SELECT site, COUNT(DISTINCT(question)) AS questions
+  FROM snapshots
+  WHERE timestamp >= '2019-08-01'
+  GROUP BY site),
+sitesByQuestions AS (SELECT RANK() OVER (ORDER BY questions DESC) AS rank, site, questions,
+  ROUND(100 * CAST(questions AS NUMERIC) / (SELECT SUM(questions) FROM questionsBySite), 2) AS percentage
+  FROM questionsBySite),
+spotsBySite AS (
+SELECT site, COUNT(*) AS spots
+  FROM snapshots
+  WHERE timestamp >= '2019-08-01'
+  GROUP BY site),
+sitesBySpots AS (SELECT RANK() OVER (ORDER BY spots DESC) AS rank, site, spots,
+  ROUND(100 * CAST(spots AS NUMERIC) / (SELECT SUM(spots) FROM spotsBySite), 2) AS percentage
+  FROM spotsBySite),
+temp AS (SELECT s.site, s.question,
+  MIN(s.views) AS "Views before HNQ",
+  MIN(s.timestamp) - q.createddate AS "Pre-HNQ duration",
+  MAX(s.views) - MIN(s.views) AS "Views while HNQ",
+  MAX(s.timestamp) - MIN(s.timestamp) AS "HNQ duration"
+  FROM snapshots AS s
+  INNER JOIN questions AS q ON s.site = q.site AND s.question = q.id
+  WHERE s.timestamp >= '2019-08-01'
+    AND s.views IS NOT NULL
+  GROUP BY s.site, s.question, q.createddate
+  HAVING MAX(s.views) > MIN(s.views)),
+stats AS (SELECT site,
+  ROUND(AVG("Views before HNQ"), 0) AS "Views before HNQ",
+  DATE_TRUNC('minute', AVG("Pre-HNQ duration")) AS "Pre-HNQ duration",
+  ROUND(AVG(3600 * "Views before HNQ" / CAST(EXTRACT(EPOCH FROM "Pre-HNQ duration") AS NUMERIC)), 1) AS "Pre-HNQ views per hour",
+  ROUND(AVG("Views while HNQ"), 0) AS "Views while HNQ",
+  DATE_TRUNC('minute', AVG("HNQ duration")) AS "HNQ duration",
+  ROUND(AVG(3600 * "Views while HNQ" / CAST(EXTRACT(EPOCH FROM "HNQ duration") AS NUMERIC)), 1) AS "HNQ views per hour"
+  FROM Temp
+  GROUP BY site)
+SELECT stats.*, q.rank, q.percentage, s.rank, s.percentage
+  FROM stats
+  INNER JOIN sitesByQuestions AS q ON q.site = stats.site
+  INNER JOIN sitesBySpots AS s ON s.site = stats.site
+  ORDER BY 7 DESC
+
+