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Everytime I run rake db:migrate on my project the db/structure.sql changes and I'm happy. Unfortunately the changes are not only additions to my table but also something strage in explicitly using our tenant keyword and extensions keyword.

db/structure.sql | 20278 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------------------------------------------------------------------------------
1 file changed, 9565 insertions(+), 10713 deletions(-)

This is part of my interesting diff after I migrate:

-CREATE FUNCTION _final_median_function(anyarray) RETURNS double precision
+CREATE FUNCTION extensions._final_median_function(anyarray) RETURNS double precision

and here is an example for table:

-SET search_path = at, pg_catalog;
-CREATE TABLE advert_all_clicks (
+CREATE TABLE at.advert_all_clicks (

Postgres 9.6.10 (also tested and it happens in 10.+) Multitenancy is done using apartment

Does anyone has any idea why this is happening? Could't find too much and I'm battling with this for a while.

Edit: In connection to my problem I found this but it applies to postgres < 9.3

radubogdan
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1 Answers1

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This is strange but I'm going to respond just in case someone else has the same issue.

If you're on a project that uses db/xx.sql file then if you open it, on very first lines you'll see the versions of pg_dump and postgres which were used to generate this dump.

In order to successfully restore from a dump or have this file db/xx.sql clean while running db:migrate you must have the same exact version installed. It's not working with a different major/minor/release (must be the exact same)

In my case first lines are looking like:

--
-- PostgreSQL database dump
--

-- Dumped from database version 9.6.5
-- Dumped by pg_dump version 9.6.5

I tried installing 9.6.10 (which is current postgresql@9.6) and other different versions. It continue to mess with my file until I compiled exactly 9.6.5 from source.

Couldn't find an explanation for this and I don't see changes in the 9.6.x changelogs.

Soon I'll create a homebrew-tap and have it here as an example.

radubogdan
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