diff --git a/mateclaw-server/src/main/resources/db/migration/kingbase/V129__wiki_page_broken_links.sql b/mateclaw-server/src/main/resources/db/migration/kingbase/V129__wiki_page_broken_links.sql
index 49aa9712..a2a2de8d 100644
--- a/mateclaw-server/src/main/resources/db/migration/kingbase/V129__wiki_page_broken_links.sql
+++ b/mateclaw-server/src/main/resources/db/migration/kingbase/V129__wiki_page_broken_links.sql
@@ -3,5 +3,5 @@
 -- See h2/V129__wiki_page_broken_links.sql for column semantics.
 -- KingbaseES (PostgreSQL) supports ADD COLUMN IF NOT EXISTS natively.
 
-ALTER TABLE mate_wiki_page ADD COLUMN IF NOT EXISTS broken_links JSONB DEFAULT NULL;
+ALTER TABLE mate_wiki_page ADD COLUMN IF NOT EXISTS broken_links TEXT DEFAULT NULL;
 ALTER TABLE mate_wiki_page ADD COLUMN IF NOT EXISTS broken_links_scanned_at TIMESTAMP(3) DEFAULT NULL;
diff --git a/mateclaw-server/src/main/resources/db/migration/kingbase/V140__goal_criteria_checklist.sql b/mateclaw-server/src/main/resources/db/migration/kingbase/V140__goal_criteria_checklist.sql
index 0dc48a13..1819b868 100644
--- a/mateclaw-server/src/main/resources/db/migration/kingbase/V140__goal_criteria_checklist.sql
+++ b/mateclaw-server/src/main/resources/db/migration/kingbase/V140__goal_criteria_checklist.sql
@@ -14,6 +14,6 @@ BEGIN
         SELECT 1 FROM information_schema.columns
         WHERE table_name = 'mate_agent_goal' AND column_name = 'criteria'
     ) THEN
-        ALTER TABLE mate_agent_goal ADD COLUMN criteria JSON NULL;
+        ALTER TABLE mate_agent_goal ADD COLUMN criteria TEXT NULL;
     END IF;
 END $$;
diff --git a/mateclaw-server/src/main/resources/db/migration/kingbase/V1__baseline_schema.sql b/mateclaw-server/src/main/resources/db/migration/kingbase/V1__baseline_schema.sql
index 86c1375e..910fea03 100644
--- a/mateclaw-server/src/main/resources/db/migration/kingbase/V1__baseline_schema.sql
+++ b/mateclaw-server/src/main/resources/db/migration/kingbase/V1__baseline_schema.sql
@@ -177,7 +177,7 @@ CREATE TABLE IF NOT EXISTS mate_message (
     runtime_model   VARCHAR(128),
     runtime_provider VARCHAR(64),
     status          VARCHAR(32)  NOT NULL DEFAULT 'completed',
-    metadata        JSONB,
+    metadata        TEXT,
     create_time     TIMESTAMP     NOT NULL,
     update_time     TIMESTAMP     NOT NULL,
     deleted         INT          NOT NULL DEFAULT 0
diff --git a/mateclaw-server/src/main/resources/db/migration/kingbase/V37__wiki_page_source_entries.sql b/mateclaw-server/src/main/resources/db/migration/kingbase/V37__wiki_page_source_entries.sql
index a989949d..11edcf83 100644
--- a/mateclaw-server/src/main/resources/db/migration/kingbase/V37__wiki_page_source_entries.sql
+++ b/mateclaw-server/src/main/resources/db/migration/kingbase/V37__wiki_page_source_entries.sql
@@ -3,4 +3,4 @@
 -- Dual-written alongside the existing source_raw_ids for backwards compatibility.
 -- KingbaseES (PostgreSQL) supports ADD COLUMN IF NOT EXISTS natively.
 
-ALTER TABLE mate_wiki_page ADD COLUMN IF NOT EXISTS source_entries JSONB NULL;
+ALTER TABLE mate_wiki_page ADD COLUMN IF NOT EXISTS source_entries TEXT NULL;
diff --git a/mateclaw-server/src/main/resources/db/migration/kingbase/V77__wiki_relation_table.sql b/mateclaw-server/src/main/resources/db/migration/kingbase/V77__wiki_relation_table.sql
index 7589de61..71030948 100644
--- a/mateclaw-server/src/main/resources/db/migration/kingbase/V77__wiki_relation_table.sql
+++ b/mateclaw-server/src/main/resources/db/migration/kingbase/V77__wiki_relation_table.sql
@@ -18,7 +18,7 @@ CREATE TABLE IF NOT EXISTS mate_wiki_relation (
     page_b_id       BIGINT NOT NULL,
 
     total_score     DECIMAL(8, 4),
-    signals_json    JSONB,
+    signals_json    TEXT,
 
     type            VARCHAR(32),