From fa08e4ae1f18d81c892c7a9fe40c83f5039f0ddc Mon Sep 17 00:00:00 2001
From: Kirill Solomko <ksolomko@sipwise.com>
Date: Fri, 23 Jan 2026 14:02:20 +0100
Subject: [PATCH] MT#64099 15841.up increase prosody unique index keys size

* increase keys size from 20 to 128 to avoid truncated values
  leading to duplicate entries and triggering index violation.

Change-Id: I8325bebb43fbce0b7c1bbf3698ffbd82159a20b7
---
 db_scripts/diff/15841.up | 2 +-
 schema/prosody.json      | 8 ++++----
 schema/prosody.sql       | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/db_scripts/diff/15841.up b/db_scripts/diff/15841.up
index d846e07e..7424b7b1 100644
--- a/db_scripts/diff/15841.up
+++ b/db_scripts/diff/15841.up
@@ -12,5 +12,5 @@ WHERE (host, user, store, `key`, `value`) NOT IN (
 );
 
 DROP INDEX prosody_index on prosody;
-CREATE UNIQUE INDEX prosody_unique_index ON prosody(`host`(20), `user`(20), `store`(20), `key`(20)) USING BTREE;
+CREATE UNIQUE INDEX prosody_unique_index ON prosody(`host`(128), `user`(128), `store`(128), `key`(128)) USING BTREE;
 COMMIT;
diff --git a/schema/prosody.json b/schema/prosody.json
index b80ba5d7..391c1116 100644
--- a/schema/prosody.json
+++ b/schema/prosody.json
@@ -203,7 +203,7 @@
          "NON_UNIQUE" : 0,
          "NULLABLE" : "YES",
          "SEQ_IN_INDEX" : 1,
-         "SUB_PART" : 20,
+         "SUB_PART" : 128,
          "TABLE_NAME" : "prosody",
          "key_col" : "prosody/prosody_unique_index/1"
       },
@@ -215,7 +215,7 @@
          "NON_UNIQUE" : 0,
          "NULLABLE" : "YES",
          "SEQ_IN_INDEX" : 2,
-         "SUB_PART" : 20,
+         "SUB_PART" : 128,
          "TABLE_NAME" : "prosody",
          "key_col" : "prosody/prosody_unique_index/2"
       },
@@ -227,7 +227,7 @@
          "NON_UNIQUE" : 0,
          "NULLABLE" : "YES",
          "SEQ_IN_INDEX" : 3,
-         "SUB_PART" : 20,
+         "SUB_PART" : 128,
          "TABLE_NAME" : "prosody",
          "key_col" : "prosody/prosody_unique_index/3"
       },
@@ -239,7 +239,7 @@
          "NON_UNIQUE" : 0,
          "NULLABLE" : "YES",
          "SEQ_IN_INDEX" : 4,
-         "SUB_PART" : 20,
+         "SUB_PART" : 128,
          "TABLE_NAME" : "prosody",
          "key_col" : "prosody/prosody_unique_index/4"
       },
diff --git a/schema/prosody.sql b/schema/prosody.sql
index 181c3ba6..00112df2 100644
--- a/schema/prosody.sql
+++ b/schema/prosody.sql
@@ -15,7 +15,7 @@ CREATE TABLE `prosody` (
   `key` text CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL,
   `type` text CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL,
   `value` mediumtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL,
-  UNIQUE KEY `prosody_unique_index` (`host`(20),`user`(20),`store`(20),`key`(20)) USING BTREE
+  UNIQUE KEY `prosody_unique_index` (`host`(128),`user`(128),`store`(128),`key`(128)) USING BTREE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci;
 /*!40101 SET character_set_client = @saved_cs_client */;
 /*!40101 SET @saved_cs_client     = @@character_set_client */;