SQLite 3.41.0 and pearson correlation extension function (#106)

* Build SQLite 3.41.0

* Update pivot_vtab

* Add Pearson correlation coefficient function extension, build

* Add an easy way to running test locally without Nodejs

* Use RSS sum to pick top2 processes for the report

* Try previous Ubuntu LTS as a workaround for Firefox worker not starting

lib/sql-js/README.md

@@ -43,6 +43,8 @@ SQLite [miscellaneous extensions][3] included:
 SQLite 3rd party extensions included:
 
 1. [pivot_vtab][5] -- a pivot virtual table
+2. `pearson` correlation coefficient function extension from [sqlean][21]
+   (which is part of [squib][20])
 
 To ease the step to have working clone locally, the build is committed into
 the repository.
@@ -99,3 +101,5 @@ described in [this message from SQLite Forum][12]:
 [17]: https://sqlite.org/contrib/
 [18]: https://sqlite.org/contrib//download/extension-functions.c?get=25
 [19]: https://github.com/lana-k/sqliteviz/blob/master/tests/lib/database/sqliteExtensions.spec.js
+[20]: https://github.com/mrwilson/squib/blob/master/pearson.c
+[21]: https://github.com/nalgeon/sqlean/blob/incubator/src/pearson.c

lib/sql-js/benchmark/procpath/top2_rss.sql

@@ -2,7 +2,7 @@ WITH one_time_pid_condition AS (
     SELECT stat_pid
     FROM record
     GROUP BY 1
-    ORDER BY MAX(stat_rss) DESC
+    ORDER BY SUM(stat_rss) DESC
     LIMIT 2
 )
 SELECT

lib/sql-js/configure.py

@@ -8,7 +8,7 @@ from pathlib import Path
 from urllib import request
 
 
-amalgamation_url = 'https://sqlite.org/2022/sqlite-amalgamation-3390300.zip'
+amalgamation_url = 'https://sqlite.org/2023/sqlite-amalgamation-3410000.zip'
 
 # Extension-functions
 # ===================
@@ -28,7 +28,8 @@ extension_urls = (
     ('https://sqlite.org/src/raw/09f967dc?at=decimal.c', 'sqlite3_decimal_init'),
     # Third-party extension
     # =====================
-    ('https://github.com/jakethaw/pivot_vtab/raw/08ab0797/pivot_vtab.c', 'sqlite3_pivotvtab_init'),
+    ('https://github.com/jakethaw/pivot_vtab/raw/9323ef93/pivot_vtab.c', 'sqlite3_pivotvtab_init'),
+    ('https://github.com/nalgeon/sqlean/raw/95e8d21a/src/pearson.c', 'sqlite3_pearson_init'),
 )
 
 sqljs_url = 'https://github.com/sql-js/sql.js/archive/refs/tags/v1.7.0.zip'