chat-memory-jdbc : Remove 'DEFAULT CURRENT_TIMESTAMP' statement

Signed-off-by: linarkou <[email protected]>

Author: linarkou

memory/spring-ai-model-chat-memory-jdbc/src/main/resources/org/springframework/ai/chat/memory/jdbc/schema-mariadb.sql

@@ -2,7 +2,7 @@ CREATE TABLE IF NOT EXISTS ai_chat_memory (
     conversation_id VARCHAR(36) NOT NULL,
     content TEXT NOT NULL,
     type VARCHAR(10) NOT NULL,
-    `timestamp` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `timestamp` TIMESTAMP NOT NULL,
     CONSTRAINT type_check CHECK (type IN ('USER', 'ASSISTANT', 'SYSTEM', 'TOOL'))
 );
 

memory/spring-ai-model-chat-memory-jdbc/src/main/resources/org/springframework/ai/chat/memory/jdbc/schema-postgresql.sql

@@ -2,7 +2,7 @@ CREATE TABLE IF NOT EXISTS ai_chat_memory (
     conversation_id VARCHAR(36) NOT NULL,
     content TEXT NOT NULL,
     type VARCHAR(10) NOT NULL CHECK (type IN ('USER', 'ASSISTANT', 'SYSTEM', 'TOOL')),
-    "timestamp" TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+    "timestamp" TIMESTAMP NOT NULL
 );
 
 CREATE INDEX IF NOT EXISTS ai_chat_memory_conversation_id_timestamp_idx