diff --git a/src/tarantool.c b/src/tarantool.c
index c3ab7a4..44881fa 100644
--- a/src/tarantool.c
+++ b/src/tarantool.c
@@ -631,21 +631,30 @@ int convert_iterator(zval *iter, int all) {
 }
 
 int get_spaceno_by_name(tarantool_connection *obj, zval *name) {
-	if (Z_TYPE_P(name) == IS_LONG)
-		return Z_LVAL_P(name);
-	if (Z_TYPE_P(name) != IS_STRING) {
+	if (Z_TYPE_P(name) != IS_STRING && Z_TYPE_P(name) != IS_LONG) {
 		tarantool_throw_exception("Space ID must be String or Long");
 		return FAILURE;
 	}
-	int32_t space_no = tarantool_schema_get_sid_by_string(obj->schema,
-			Z_STRVAL_P(name), Z_STRLEN_P(name));
-	if (space_no != FAILURE)
-		return space_no;
-
+	int32_t space_no = -1;
 	tarantool_tp_update(obj->tps);
-	tp_select(obj->tps, SPACE_SPACE, INDEX_SPACE_NAME, 0, 4096);
-	tp_key(obj->tps, 1);
-	tp_encode_str(obj->tps, Z_STRVAL_P(name), Z_STRLEN_P(name));
+	if (Z_TYPE_P(name) == IS_LONG) {
+		space_no = tarantool_schema_get_sid_by_number(obj->schema,
+							      Z_LVAL_P(name));
+		if (space_no != FAILURE)
+			return space_no;
+		tp_select(obj->tps, SPACE_SPACE, INDEX_SPACE_NO, 0, 4096);
+		tp_key(obj->tps, 1);
+		tp_encode_uint(obj->tps, Z_LVAL_P(name));
+	} else {
+		space_no = tarantool_schema_get_sid_by_string(obj->schema,
+							      Z_STRVAL_P(name),
+							      Z_STRLEN_P(name));
+		if (space_no != FAILURE)
+			return space_no;
+		tp_select(obj->tps, SPACE_SPACE, INDEX_SPACE_NAME, 0, 4096);
+		tp_key(obj->tps, 1);
+		tp_encode_str(obj->tps, Z_STRVAL_P(name), Z_STRLEN_P(name));
+	}
 	tp_reqid(obj->tps, TARANTOOL_G(sync_counter)++);
 
 	obj->value->len = tp_used(obj->tps);
@@ -660,10 +669,11 @@ int get_spaceno_by_name(tarantool_connection *obj, zval *name) {
 	size_t body_size = php_mp_unpack_package_size(pack_len);
 	smart_string_ensure(obj->value, body_size);
 	if (tarantool_stream_read(obj, obj->value->c,
-				body_size) == FAILURE)
+				  body_size) == FAILURE)
 		return FAILURE;
 
-	struct tnt_response resp; memset(&resp, 0, sizeof(struct tnt_response));
+	struct tnt_response resp;
+	memset(&resp, 0, sizeof(struct tnt_response));
 	if (php_tp_response(&resp, obj->value->c, body_size) == -1) {
 		tarantool_throw_parsingexception("query");
 		return FAILURE;
@@ -679,10 +689,22 @@ int get_spaceno_by_name(tarantool_connection *obj, zval *name) {
 		tarantool_throw_parsingexception("schema (space)");
 		return FAILURE;
 	}
-	space_no = tarantool_schema_get_sid_by_string(obj->schema,
-			Z_STRVAL_P(name), Z_STRLEN_P(name));
-	if (space_no == FAILURE)
-		THROW_EXC("No space '%s' defined", Z_STRVAL_P(name));
+
+	if (Z_TYPE_P(name) == IS_LONG) {
+		space_no = tarantool_schema_get_sid_by_number(obj->schema,
+							      Z_LVAL_P(name));
+		if (space_no == FAILURE) {
+			THROW_EXC("No space '%s' defined", Z_STRVAL_P(name));
+		}
+	} else {
+		space_no = tarantool_schema_get_sid_by_string(obj->schema,
+							      Z_STRVAL_P(name),
+							      Z_STRLEN_P(name));
+		if (space_no == FAILURE) {
+			THROW_EXC("No space '%ul' defined", Z_LVAL_P(name));
+		}
+	}
+
 	return space_no;
 }
 
@@ -696,6 +718,7 @@ int get_indexno_by_name(tarantool_connection *obj, int space_no,
 		THROW_EXC("Index ID must be String or Long");
 		return FAILURE;
 	}
+
 	int32_t index_no = tarantool_schema_get_iid_by_string(obj->schema,
 			space_no, Z_STRVAL_P(name), Z_STRLEN_P(name));
 	if (index_no != FAILURE)
@@ -722,7 +745,8 @@ int get_indexno_by_name(tarantool_connection *obj, int space_no,
 	if (tarantool_stream_read(obj, obj->value->c, body_size) == FAILURE)
 		return FAILURE;
 
-	struct tnt_response resp; memset(&resp, 0, sizeof(struct tnt_response));
+	struct tnt_response resp;
+	memset(&resp, 0, sizeof(struct tnt_response));
 	if (php_tp_response(&resp, obj->value->c, body_size) == -1) {
 		tarantool_throw_parsingexception("query");
 		return FAILURE;
@@ -777,7 +801,8 @@ int get_fieldno_by_name(tarantool_connection *obj, uint32_t space_no,
 	if (tarantool_stream_read(obj, obj->value->c, body_size) == FAILURE)
 		return FAILURE;
 
-	struct tnt_response resp; memset(&resp, 0, sizeof(struct tnt_response));
+	struct tnt_response resp;
+	memset(&resp, 0, sizeof(struct tnt_response));
 	if (php_tp_response(&resp, obj->value->c, body_size) == -1) {
 		tarantool_throw_parsingexception("query");
 		return FAILURE;
diff --git a/src/tarantool_proto.h b/src/tarantool_proto.h
index 658d0fb..49f0432 100644
--- a/src/tarantool_proto.h
+++ b/src/tarantool_proto.h
@@ -12,6 +12,8 @@
 #define SPACE_SPACE 281
 #define SPACE_INDEX 289
 
+#define INDEX_SPACE_NO      0
+#define INDEX_INDEX_NO      0
 #define INDEX_SPACE_NAME    2
 #define INDEX_INDEX_NAME    2
 
diff --git a/src/tarantool_schema.c b/src/tarantool_schema.c
index 01d7e6f..d6e6e16 100644
--- a/src/tarantool_schema.c
+++ b/src/tarantool_schema.c
@@ -398,6 +398,21 @@ schema_add_space(
 	return -1;
 }
 
+int
+tarantool_schema_has_space_no(
+		struct tarantool_schema *schema_obj,
+		uint32_t space_no) {
+	/* Prepare key for space search */
+	struct schema_key space_key;
+	space_key.number = space_no;
+	space_key.id = (void *)&(space_key.number);
+	space_key.id_len = sizeof(uint32_t);
+
+	struct mh_schema_space_t *schema = schema_obj->space_hash;
+	mh_int_t space_slot = mh_schema_space_find(schema, &space_key, NULL);
+	return (space_slot != mh_end(schema));
+}
+
 int
 tarantool_schema_add_spaces(
 		struct tarantool_schema *schema_obj,
@@ -557,6 +572,25 @@ tarantool_schema_get_sid_by_string(
 	return space->space_number;
 }
 
+/* ALIAS for verify existens */
+int32_t
+tarantool_schema_get_sid_by_number(
+		struct tarantool_schema *schema_obj,
+		uint32_t sid
+) {
+	struct mh_schema_space_t *schema = schema_obj->space_hash;
+	struct schema_key space_key = {
+		(void *)&sid,
+		sizeof(uint32_t), 0
+	};
+	mh_int_t space_slot = mh_schema_space_find(schema, &space_key, NULL);
+	if (space_slot == mh_end(schema))
+		return -1;
+	const struct schema_space_value *space = *mh_schema_space_node(schema,
+			space_slot);
+	return space->space_number;
+}
+
 int32_t
 tarantool_schema_get_iid_by_string(
 		struct tarantool_schema *schema_obj, uint32_t sid,
diff --git a/src/tarantool_schema.h b/src/tarantool_schema.h
index 537738e..5316684 100644
--- a/src/tarantool_schema.h
+++ b/src/tarantool_schema.h
@@ -47,6 +47,9 @@ struct tarantool_schema {
 	struct mh_schema_space_t *space_hash;
 };
 
+int
+tarantool_schema_has_space_no(struct tarantool_schema *, uint32_t);
+
 int
 tarantool_schema_add_spaces(struct tarantool_schema *, const char *, uint32_t);
 int
@@ -56,6 +59,8 @@ int32_t
 tarantool_schema_get_sid_by_string(struct tarantool_schema *, const char *,
 				   uint32_t);
 int32_t
+tarantool_schema_get_sid_by_number(struct tarantool_schema *, uint32_t);
+int32_t
 tarantool_schema_get_iid_by_string(struct tarantool_schema *, uint32_t,
 				   const char *, uint32_t);
 int32_t
diff --git a/test/DMLTest.php b/test/DMLTest.php
index 5dfb5e9..a51d47d 100644
--- a/test/DMLTest.php
+++ b/test/DMLTest.php
@@ -468,4 +468,12 @@ public function test_18_02_delete_loop() {
         gc_collect_cycles();
         gc_collect_cycles();
     }
+
+	/**
+	 * @doesNotPerformAssertions
+	 */
+	public function test_19_schema_obtain_failed() {
+		$empty_tarantool = new Tarantool('localhost', getenv('PRIMARY_PORT'), 'test');
+		$empty_tarantool->select(289, [], 'name');
+	}
 }