From 50be8ccc5cb9ae57a5e866a890c3536deaf6091e Mon Sep 17 00:00:00 2001
From: mtrela <mtrela@syncad.com>
Date: Thu, 3 Sep 2020 12:08:27 +0200
Subject: [PATCH] An execution of `hive_accounts_info_view` view is faster
---
hive/db/schema.py | 109 +++++++++++++++++++++++-----------------------
1 file changed, 54 insertions(+), 55 deletions(-)
diff --git a/hive/db/schema.py b/hive/db/schema.py
index 228f3211f..bb5461150 100644
--- a/hive/db/schema.py
+++ b/hive/db/schema.py
@@ -567,62 +567,61 @@ def setup(db):
CREATE OR REPLACE VIEW public.hive_accounts_info_view
AS
- SELECT id,
- name,
- display_name,
- about,
- reputation,
- created_at,
- profile_image,
- location,
- website,
- cover_image,
- rank,
- following,
- followers,
+ SELECT
+ id,
+ name,
+ display_name,
+ about,
+ reputation,
+ created_at,
+ profile_image,
+ location,
+ website,
+ cover_image,
+ rank,
+ following,
+ followers,
+ (
+ CASE
+ WHEN COALESCE( post_info.post_active_at, '1970-01-01 00:00:00.0' ) > COALESCE( vote_info.vote_active_at, '1970-01-01 00:00:00.0' ) THEN
(
- CASE
- WHEN post_info.post_active_at > vote_info.vote_active_at THEN
- (
- CASE
- WHEN post_info.post_active_at > created_at THEN
- post_info.post_active_at
- ELSE
- created_at
- END
- )
- ELSE
- (
- CASE
- WHEN vote_info.vote_active_at > created_at THEN
- vote_info.vote_active_at
- ELSE
- created_at
- END
- )
- END
- ) active_at,
- proxy,
- proxy_weight,
- lastread_at,
- cached_at,
- raw_json,
- post_info.post_count post_count
- FROM hive_accounts ha
- INNER JOIN
- (
- select COALESCE( count(*), 0 ) post_count, COALESCE( max(hp.created_at), '1970-01-01 00:00:00.0' ) post_active_at, ha.id id_internal
- from hive_posts hp
- RIGHT JOIN hive_accounts ha ON hp.author_id = ha.id
- GROUP BY ha.id
- ) post_info ON ha.id = post_info.id_internal
- INNER JOIN
- (
- select COALESCE( max(hv.last_update), '1970-01-01 00:00:00.0' ) vote_active_at, ha.id id_internal
- from hive_votes hv
- RIGHT JOIN hive_accounts ha ON hv.voter_id = ha.id
- GROUP BY ha.id
- ) vote_info ON ha.id = vote_info.id_internal
+ CASE
+ WHEN COALESCE( post_info.post_active_at, '1970-01-01 00:00:00.0' ) > created_at THEN
+ COALESCE( post_info.post_active_at, '1970-01-01 00:00:00.0' )
+ ELSE
+ created_at
+ END
+ )
+ ELSE
+ (
+ CASE
+ WHEN COALESCE( vote_info.vote_active_at, '1970-01-01 00:00:00.0' ) > created_at THEN
+ COALESCE( vote_info.vote_active_at, '1970-01-01 00:00:00.0' )
+ ELSE
+ created_at
+ END
+ )
+ END
+ ) active_at,
+ proxy,
+ proxy_weight,
+ lastread_at,
+ cached_at,
+ raw_json,
+ COALESCE( post_info.post_count, 0 ) post_count
+ from hive_accounts ha
+ LEFT JOIN
+ (
+ select count(*) post_count, max(created_at) post_active_at, author_id
+ from hive_posts
+ GROUP BY author_id
+ ) post_info ON ha.id=post_info.author_id
+ LEFT JOIN
+ (
+ select max(last_update) vote_active_at, voter_id
+ from hive_votes
+ GROUP BY voter_id
+ )vote_info ON ha.id=vote_info.voter_id
"""
db.query_no_return(sql)
--
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