fix: increase performance of ListUser by login name ignore case (#12350)

# Which Problems Are Solved Login v2 uses the `users.v2.ListUsers`-endpoint to get a user by login name. This query had an inefficient `WHERE`-clause. # How the Problems Are Solved Update the view and use a specific clause for this query. # Additional information Added in https://github.com/zitadel/zitadel/pull/10475 --------- Co-authored-by: Marco A. <[email protected]> Co-authored-by: Livio Spring <[email protected]>
2026-10-29 02:22:16 +00:00 · 2026-06-30 11:20:21 +00:00
parent 561da54ff7
commit f9995ee39c
11 changed files with 137 additions and 27 deletions
@@ -0,0 +1,42 @@
+CREATE OR REPLACE VIEW projections.login_names3 AS (
+    SELECT
+        u.id AS user_id
+        , CASE
+            WHEN p.must_be_domain THEN CONCAT(u.user_name, '@', d.name)
+            ELSE u.user_name
+        END AS login_name
+        , COALESCE(d.is_primary, TRUE) AS is_primary
+        , u.instance_id
+        , u.resource_owner
+        , CASE
+                WHEN p.must_be_domain THEN CONCAT(u.user_name_lower, '@', d.name_lower)
+                ELSE u.user_name_lower
+        END AS login_name_lower
+    FROM
+        projections.login_names3_users AS u
+    LEFT JOIN LATERAL (
+        SELECT
+            must_be_domain
+            , is_default
+        FROM
+            projections.login_names3_policies AS p
+        WHERE
+            (
+                p.instance_id = u.instance_id
+                AND NOT p.is_default
+                AND p.resource_owner = u.resource_owner
+            ) OR (
+                p.instance_id = u.instance_id
+                AND p.is_default
+            )
+        ORDER BY
+            p.is_default -- custom first
+        LIMIT 1
+    ) AS p ON TRUE
+    LEFT JOIN 
+        projections.login_names3_domains d
+        ON 
+            p.must_be_domain 
+            AND u.resource_owner = d.resource_owner 
+            AND u.instance_id = d.instance_id
+);