The connection-url is configured as follows with TRACE_LEVEL_FILE=4 to enable query logging:

[hokuda@localhost configuration]$ diff -u standalone.xml standalone-h2query.xml 
--- standalone.xml      2020-10-13 00:25:00.000000000 +0900
+++ standalone-h2query.xml      2020-10-23 16:34:23.936987309 +0900
@@ -152,7 +152,7 @@
         <subsystem xmlns="urn:jboss:domain:datasources:6.0">
             <datasources>
                 <datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true" statistics-enabled="${wildfly.datasources.statistics-enabled:${wildfly.statistics-enabled:false}}">
-                    <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
+                  <connection-url>jdbc:h2:${jboss.server.data.dir}/test;TRACE_LEVEL_FILE=4;DB_CL

[hokuda@local{code}
[hokuda@localhost configuration]$ diff -u standalone.xml standalone-h2query.xml
— standalone.xml 2020-10-13 00:25:00.000000000 +0900
+++ standalone-h2query.xml 2020-10-23 16:34:23.936987309 +0900
@@ -152,7 +152,7 @@
<subsystem xmlns="urn:jboss:domain:datasources:6.0">
<datasources>
<datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true" statistics-enabled="${wildfly.datasources.statistics-enabled:${wildfly.statistics-enabled:false}}">

• <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
  + <connection-url>jdbc:h2:${jboss.server.data.dir}/test;TRACE_LEVEL_FILE=4;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
  <driver>h2</driver>
  <security>
  <user-name>sa</user-name>

  host configuration]$ diff -u standalone.xml standalone-h2query.xml 
   — standalone.xml 2020-10-13 00:25:00.000000000 +0900
   +++ standalone-h2query.xml 2020-10-23 16:34:23.936987309 +0900
   @@ -152,7 +152,7 @@
   <subsystem xmlns="urn:jboss:domain:datasources:6.0">
   <datasources>
   <datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true" statistics-enabled="${wildfly.datasources.statistics-enabled:${wildfly.statistics-enabled:false}}">
   - <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
   + <connection-url>jdbc:h2:${jboss.server.data.dir}/test;TRACE_LEVEL_FILE=4;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
   <driver>h2</driver>
   <security>
   <user-name>sa</user-name>
  {code:java}
  OSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
                       <driver>h2</driver>
                       <security>
                           <user-name>sa</user-name>
  

  But, no query log is written in server.log.