From ec415bf5c436232344b3738ebe73d8e6fc878999 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Wed, 11 Jan 2023 11:32:47 -0800
Subject: [PATCH] Added upgrade instructions for 0.4.0 [skip ci]

---
 CHANGELOG.md                 |  2 ++
 README.md                    | 10 ++++++++++
 sql/vector--0.3.2--0.4.0.sql |  2 +-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 185fece..51d147a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## 0.4.0 (unreleased)
 
+If upgrading with Postgres < 13, see [this note](#040).
+
 - Changed text representation for vector elements to match `real`
 - Changed storage for vector from `plain` to `extended`
 - Increased max dimensions for vector from 1024 to 16000
diff --git a/README.md b/README.md
index 60d89d9..61f9821 100644
--- a/README.md
+++ b/README.md
@@ -277,6 +277,16 @@ ALTER EXTENSION vector UPDATE;
 
 ## Upgrade Notes
 
+### 0.4.0
+
+For Postgres < 13, remove this line from `sql/vector--0.3.2--0.4.0.sql`:
+
+```sql
+ALTER TYPE vector SET (STORAGE = extended);
+```
+
+Then run `make install` and `ALTER EXTENSION vector UPDATE;`.
+
 ### 0.3.1
 
 If upgrading from 0.2.7 or 0.3.0, recreate all `ivfflat` indexes after upgrading to ensure all data is indexed.
diff --git a/sql/vector--0.3.2--0.4.0.sql b/sql/vector--0.3.2--0.4.0.sql
index 8a08cd0..3652664 100644
--- a/sql/vector--0.3.2--0.4.0.sql
+++ b/sql/vector--0.3.2--0.4.0.sql
@@ -1,7 +1,7 @@
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
 \echo Use "ALTER EXTENSION vector UPDATE TO '0.4.0'" to load this file. \quit
 
--- comment out this single line for Postgres < 13
+-- remove this single line for Postgres < 13
 ALTER TYPE vector SET (STORAGE = extended);
 
 CREATE FUNCTION vector_accum(double precision[], vector) RETURNS double precision[]