removed useless log.warn about unsupported methods

Author: chernser

jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/DatabaseMetaDataImpl.java

@@ -903,7 +903,6 @@ private static String columnDataTypeToSqlType(String value) {
     @Override
     public ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getColumnPrivileges is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery("SELECT NULL::Nullable(String) AS TABLE_CAT, " +
                     "NULL::Nullable(String) AS TABLE_SCHEM, " +
@@ -922,7 +921,6 @@ public ResultSet getColumnPrivileges(String catalog, String schema, String table
     @Override
     public ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getTablePrivileges is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery("SELECT NULL::Nullable(String) AS TABLE_CAT, " +
                     "NULL::Nullable(String) AS TABLE_SCHEM, " +
@@ -940,7 +938,6 @@ public ResultSet getTablePrivileges(String catalog, String schemaPattern, String
     @Override
     public ResultSet getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getBestRowIdentifier is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery("SELECT NULL::Nullable(Int16) AS SCOPE, " +
                     "NULL::Nullable(String) AS COLUMN_NAME, " +
@@ -959,7 +956,6 @@ public ResultSet getBestRowIdentifier(String catalog, String schema, String tabl
     @Override
     public ResultSet getVersionColumns(String catalog, String schema, String table) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getVersionColumns is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery("SELECT NULL::Nullable(Int16) AS SCOPE, " +
                     "NULL::Nullable(String) AS COLUMN_NAME, " +
@@ -1025,7 +1021,6 @@ public ResultSet getImportedKeys(String catalog, String schema, String table) th
     @Override
     public ResultSet getExportedKeys(String catalog, String schema, String table) throws SQLException {
         // ClickHouse has no notion of foreign key. This method should return empty resultset
-        log.warn("getExportedKeys is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery("SELECT NULL::Nullable(String) AS PKTABLE_CAT, " +
                     "NULL::Nullable(String) AS PKTABLE_SCHEM, " +
@@ -1050,7 +1045,6 @@ public ResultSet getExportedKeys(String catalog, String schema, String table) th
     @Override
     public ResultSet getCrossReference(String parentCatalog, String parentSchema, String parentTable, String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getCrossReference is not supported and may return invalid results");
         try {
             String columns = "NULL ::Nullable(String) AS PKTABLE_CAT, " +
                     "NULL::Nullable(String) AS PKTABLE_SCHEM, " +
@@ -1227,7 +1221,6 @@ public boolean supportsBatchUpdates() throws SQLException {
     @Override
     public ResultSet getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getUDTs is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery("SELECT " +
                     "NULL::Nullable(String) AS TYPE_CAT, " +
@@ -1274,7 +1267,6 @@ public boolean supportsGetGeneratedKeys() throws SQLException {
     @Override
     public ResultSet getSuperTypes(String catalog, String schemaPattern, String typeNamePattern) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getSuperTypes is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery(
                     "SELECT NULL::Nullable(String) AS TYPE_CAT, "
@@ -1292,7 +1284,6 @@ public ResultSet getSuperTypes(String catalog, String schemaPattern, String type
     @Override
     public ResultSet getSuperTables(String catalog, String schemaPattern, String tableNamePattern) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getSuperTables is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery(
                     "SELECT "
@@ -1309,7 +1300,6 @@ public ResultSet getSuperTables(String catalog, String schemaPattern, String tab
     @Override
     public ResultSet getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern) throws SQLException {
         //Return an empty result set with the required columns
-        log.warn("getAttributes is not supported and may return invalid results");
         try {
             return connection.createStatement().executeQuery(
                     "SELECT "
@@ -1334,7 +1324,7 @@ public ResultSet getAttributes(String catalog, String schemaPattern, String type
                     + "NULL::Nullable(String) AS SCOPE_SCHEMA, "
                     + "NULL::Nullable(String) AS SCOPE_TABLE, "
                     + "NULL::Nullable(Int16) AS SOURCE_DATA_TYPE" +
-                        "  LIMIT 0");
+                        " LIMIT 0");
         } catch (Exception e) {
             throw ExceptionUtils.toSqlState(e);
         }