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-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb13
1 files changed, 5 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
index 2264595751..7cad8f94cf 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
@@ -280,16 +280,13 @@ module ActiveRecord
end_sql
if result.nil? or result.empty?
- # If that fails, try parsing the primary key's default value.
- # Support the 7.x and 8.0 nextval('foo'::text) as well as
- # the 8.1+ nextval('foo'::regclass).
result = query(<<-end_sql, 'SCHEMA')[0]
SELECT attr.attname,
CASE
- WHEN split_part(def.adsrc, '''', 2) ~ '.' THEN
- substr(split_part(def.adsrc, '''', 2),
- strpos(split_part(def.adsrc, '''', 2), '.')+1)
- ELSE split_part(def.adsrc, '''', 2)
+ WHEN split_part(pg_get_expr(def.adbin, def.adrelid), '''', 2) ~ '.' THEN
+ substr(split_part(pg_get_expr(def.adbin, def.adrelid), '''', 2),
+ strpos(split_part(pg_get_expr(def.adbin, def.adrelid), '''', 2), '.')+1)
+ ELSE split_part(pg_get_expr(def.adbin, def.adrelid), '''', 2)
END
FROM pg_class t
JOIN pg_attribute attr ON (t.oid = attrelid)
@@ -297,7 +294,7 @@ module ActiveRecord
JOIN pg_constraint cons ON (conrelid = adrelid AND adnum = conkey[1])
WHERE t.oid = '#{quote_table_name(table)}'::regclass
AND cons.contype = 'p'
- AND def.adsrc ~* 'nextval'
+ AND pg_get_expr(def.adbin, def.adrelid) ~* 'nextval'
end_sql
end