diff --git a/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateDatabaseChangeLogLockTableGeneratorSpanner.java b/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateDatabaseChangeLogLockTableGeneratorSpanner.java
index da696ad4..a3c3ba60 100644
--- a/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateDatabaseChangeLogLockTableGeneratorSpanner.java
+++ b/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateDatabaseChangeLogLockTableGeneratorSpanner.java
@@ -6,6 +6,7 @@
 import liquibase.sqlgenerator.SqlGeneratorChain;
 import liquibase.sqlgenerator.core.CreateDatabaseChangeLogLockTableGenerator;
 import liquibase.statement.core.CreateDatabaseChangeLogLockTableStatement;
+import liquibase.ext.spanner.ICloudSpanner;
 
 public class CreateDatabaseChangeLogLockTableGeneratorSpanner
     extends CreateDatabaseChangeLogLockTableGenerator {
@@ -31,4 +32,9 @@ public Sql[] generateSql(
   public int getPriority() {
     return PRIORITY_DATABASE;
   }
+
+  @Override
+  public boolean supports(CreateDatabaseChangeLogLockTableStatement statement, Database database) {
+    return (database instanceof ICloudSpanner);
+  }
 }
diff --git a/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateTableGeneratorSpanner.java b/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateTableGeneratorSpanner.java
index 05178d15..59bfa1d7 100644
--- a/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateTableGeneratorSpanner.java
+++ b/src/main/java/liquibase/ext/spanner/sqlgenerator/CreateTableGeneratorSpanner.java
@@ -21,6 +21,7 @@
 import liquibase.sqlgenerator.core.CreateTableGenerator;
 import liquibase.statement.core.CreateTableStatement;
 import liquibase.structure.DatabaseObject;
+import liquibase.ext.spanner.ICloudSpanner;
 
 public class CreateTableGeneratorSpanner extends CreateTableGenerator {
 
@@ -75,4 +76,9 @@ public Sql[] generateSql(
   public int getPriority() {
     return PRIORITY_DATABASE;
   }
+
+  @Override
+  public boolean supports(CreateTableStatement statement, Database database) {
+    return (database instanceof ICloudSpanner);
+  }
 }
diff --git a/src/main/java/liquibase/ext/spanner/sqlgenerator/InitializeChangeLogLockTableGeneratorSpanner.java b/src/main/java/liquibase/ext/spanner/sqlgenerator/InitializeChangeLogLockTableGeneratorSpanner.java
index 9621fcd0..45c0a69a 100644
--- a/src/main/java/liquibase/ext/spanner/sqlgenerator/InitializeChangeLogLockTableGeneratorSpanner.java
+++ b/src/main/java/liquibase/ext/spanner/sqlgenerator/InitializeChangeLogLockTableGeneratorSpanner.java
@@ -23,6 +23,7 @@
 import liquibase.statement.core.DeleteStatement;
 import liquibase.statement.core.InitializeDatabaseChangeLogLockTableStatement;
 import liquibase.statement.core.InsertStatement;
+import liquibase.ext.spanner.ICloudSpanner;
 
 public class InitializeChangeLogLockTableGeneratorSpanner
     extends AbstractSqlGenerator<InitializeDatabaseChangeLogLockTableStatement> {
@@ -62,4 +63,10 @@ public Sql[] generateSql(
             },
             database);
   }
-}
+
+  @Override
+  public boolean supports(InitializeDatabaseChangeLogLockTableStatement statement, Database database) {
+    return (database instanceof ICloudSpanner);
+  }
+  
+}
\ No newline at end of file
diff --git a/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertOrUpdateGeneratorSpanner.java b/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertOrUpdateGeneratorSpanner.java
index cd69855f..1cb02c67 100644
--- a/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertOrUpdateGeneratorSpanner.java
+++ b/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertOrUpdateGeneratorSpanner.java
@@ -97,4 +97,5 @@ protected String getRecordCheck(InsertOrUpdateStatement insertOrUpdateStatement,
   protected String getElse(Database database) {
     return "";
   }
+
 }
diff --git a/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertWithSelectGeneratorSpanner.java b/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertWithSelectGeneratorSpanner.java
index 57c9144a..e7108c3a 100644
--- a/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertWithSelectGeneratorSpanner.java
+++ b/src/main/java/liquibase/ext/spanner/sqlgenerator/InsertWithSelectGeneratorSpanner.java
@@ -25,6 +25,7 @@
 import liquibase.sqlgenerator.core.InsertGenerator;
 import liquibase.statement.DatabaseFunction;
 import liquibase.statement.core.InsertStatement;
+import liquibase.ext.spanner.ICloudSpanner;
 
 /** Generator for INSERT statements in the form 'INSERT INTO FOO (..) SELECT ...'. */
 public class InsertWithSelectGeneratorSpanner extends InsertGenerator {
@@ -35,6 +36,11 @@ public int getPriority() {
     return 0;
   }
 
+  @Override
+  public boolean supports(InsertStatement statement, Database database) {
+    return (database instanceof ICloudSpanner);
+  }
+
   @Override
   public Sql[] generateSql(InsertStatement statement, Database database,
       SqlGeneratorChain sqlGeneratorChain) {