Escape schema/tablenames in metadata.getTables()

liquibase-core/src/main/java/liquibase/snapshot/JdbcDatabaseSnapshot.java

@@ -1029,8 +1029,8 @@ public List<CachedRow> fastFetchQuery() throws SQLException, DatabaseException {
 
                     String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
                     String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
-                    return extract(databaseMetaData.getTables(catalog, schema, ((table == null) ?
-                            SQL_FILTER_MATCH_ALL : table), new String[]{"TABLE"}));
+                    return extract(databaseMetaData.getTables(catalog, escapeForLike(schema), ((table == null) ?
+                            SQL_FILTER_MATCH_ALL : escapeForLike(table)), new String[]{"TABLE"}));
                 }
 
                 @Override
@@ -1049,7 +1049,7 @@ public List<CachedRow> bulkFetchQuery() throws SQLException, DatabaseException {
 
                     String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
                     String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
-                    return extract(databaseMetaData.getTables(catalog, schema, SQL_FILTER_MATCH_ALL, new String[]{"TABLE"}));
+                    return extract(databaseMetaData.getTables(catalog, escapeForLike(schema), SQL_FILTER_MATCH_ALL, new String[]{"TABLE"}));
                 }
 
                 private List<CachedRow> queryMssql(CatalogAndSchema catalogAndSchema, String tableName) throws DatabaseException, SQLException {
@@ -1133,8 +1133,8 @@ private List<CachedRow> queryDb2Zos(CatalogAndSchema catalogAndSchema, String ta
                 private List<CachedRow> queryPostgres(CatalogAndSchema catalogAndSchema, String tableName) throws SQLException {
                     String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
                     String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
-                    return extract(databaseMetaData.getTables(catalog, schema, ((tableName == null) ?
-                            SQL_FILTER_MATCH_ALL : tableName), new String[]{"TABLE", "PARTITIONED TABLE"}));
+                    return extract(databaseMetaData.getTables(catalog, escapeForLike(schema), ((tableName == null) ?
+                            SQL_FILTER_MATCH_ALL : escapeForLike(tableName)), new String[]{"TABLE", "PARTITIONED TABLE"}));
 
                 }
             });
@@ -1186,8 +1186,8 @@ public List<CachedRow> fastFetchQuery() throws SQLException, DatabaseException {
 
                     String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
                     String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
-                    return extract(databaseMetaData.getTables(catalog, schema, ((view == null) ? SQL_FILTER_MATCH_ALL
-                            : view), new String[]{"VIEW"}));
+                    return extract(databaseMetaData.getTables(catalog, escapeForLike(schema), ((view == null) ? SQL_FILTER_MATCH_ALL
+                            : escapeForLike(view)), new String[]{"VIEW"}));
                 }
 
                 @Override
@@ -1200,7 +1200,7 @@ public List<CachedRow> bulkFetchQuery() throws SQLException, DatabaseException {
 
                     String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
                     String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
-                    return extract(databaseMetaData.getTables(catalog, schema, SQL_FILTER_MATCH_ALL, new String[]{"VIEW"}));
+                    return extract(databaseMetaData.getTables(catalog, escapeForLike(schema), SQL_FILTER_MATCH_ALL, new String[]{"VIEW"}));
                 }
 
 
@@ -1698,4 +1698,13 @@ private String getAllCatalogsStringScratchData() {
         return (String) JdbcDatabaseSnapshot.this.getScratchData(ALL_CATALOGS_STRING_SCRATCH_KEY);
     }
 
+    private String escapeForLike(String string) {
+        if (string == null) {
+            return null;
+        }
+        return string
+                .replace("%", "\\%")
+                .replace("_", "\\_");
+    }
+
 }

liquibase-integration-tests/src/test/groovy/liquibase/snapshot/JdbcDatabaseSnapshotTest.groovy

@@ -0,0 +1,49 @@
+package liquibase.snapshot
+
+import liquibase.Scope
+import liquibase.database.DatabaseFactory
+import liquibase.database.jvm.JdbcConnection
+import liquibase.extension.testing.testsystem.DatabaseTestSystem
+import liquibase.extension.testing.testsystem.TestSystemFactory
+import liquibase.statement.SqlStatement
+import liquibase.statement.core.RawSqlStatement
+import liquibase.structure.core.Table
+import liquibase.structure.core.View
+import org.junit.Rule
+import spock.lang.Shared
+import spock.lang.Specification
+import spock.lang.Unroll
+
+import java.sql.Connection
+
+class JdbcDatabaseSnapshotTest extends Specification {
+
+    @Rule
+    public DatabaseTestSystem h2 = Scope.currentScope.getSingleton(TestSystemFactory).getTestSystem("h2")
+
+    @Unroll
+    def "getTables and getViews works with underscores in schema names"() {
+        when:
+        def connection = h2.getConnection()
+        def db = DatabaseFactory.instance.findCorrectDatabaseImplementation(new JdbcConnection(connection))
+        db.execute([
+                new RawSqlStatement("create schema if not exists \"TEST_SCHEMA\""),
+                new RawSqlStatement("create schema if not exists \"TEST-SCHEMA\""),
+                new RawSqlStatement("create table if not exists \"TEST-SCHEMA\".test_table (id int)"),
+                new RawSqlStatement("create view if not exists \"TEST-SCHEMA\".test_view as select * from \"TEST-SCHEMA\".test_table"),
+        ] as SqlStatement[], null)
+
+        then:
+        SnapshotGeneratorFactory.instance.has(new Table(null, "TEST-SCHEMA", "TEST_TABLE"), db)
+        !SnapshotGeneratorFactory.instance.has(new Table(null, "TEST_SCHEMA", "TEST_TABLE"), db)
+
+        SnapshotGeneratorFactory.instance.has(new View(null, "TEST-SCHEMA", "TEST_VIEW"), db)
+        !SnapshotGeneratorFactory.instance.has(new View(null, "TEST_SCHEMA", "TEST_VIEW"), db)
+
+        cleanup:
+        db.execute([
+                new RawSqlStatement("drop schema \"test_schema\" if exists"),
+                new RawSqlStatement("drop schema \"test-schema\" if exists"),
+        ] as SqlStatement[], null)
+    }
+}