Update translation sources

Author: Onvember

locale/en/reference/reference_lua/box_space/create_index.pot

@@ -437,6 +437,9 @@ msgstr ""
 msgid "Allowing null for an indexed key"
 msgstr ""
 
+msgid "is_nullable parts option"
+msgstr ""
+
 msgid "If the index type is TREE, and the index is not the primary index, then the ``parts={...}`` clause may include ``is_nullable=true`` or ``is_nullable=false`` (the default)."
 msgstr ""
 
@@ -449,6 +452,36 @@ msgstr ""
 msgid "It is legal to create multiple indexes for the same field with different ``is_nullable`` values, or to call :doc:`/reference/reference_lua/box_space/format` with a different ``is_nullable`` value from what is used for an index. When there is a contradiction, the rule is: null is illegal unless ``is_nullable=true`` for every index and for the space format."
 msgstr ""
 
+msgid "exclude_null parts option"
+msgstr ""
+
+msgid "Since version 2.8.2 an index part definition may include option ``exclude_null``, which allows an index to skip tuples with null at this part."
+msgstr ""
+
+msgid "By default, the option is set to ``false``. When ``exclude_null`` is turned on, the ``is_nullable=true`` option will be set automatically. It can't be used for the primary key. This option can be changed dynamically: in this case the index is rebuilt."
+msgstr ""
+
+msgid "Such indexes do not store filtered tuples at all, so indexing can be done faster."
+msgstr ""
+
+msgid "``exclude_null`` and ``is_nullable`` are connected, so this table describes the result of combining them:"
+msgstr ""
+
+msgid "**exclude_null/is_nullable**"
+msgstr ""
+
+msgid "**false**"
+msgstr ""
+
+msgid "**true**"
+msgstr ""
+
+msgid "ok"
+msgstr ""
+
+msgid "not allowed"
+msgstr ""
+
 msgid "Creating an index using field names instead of field numbers"
 msgstr ""
 

locale/en/reference/reference_sql/sql_statements_and_clauses.pot

@@ -2047,7 +2047,7 @@ msgstr ""
 msgid "In this case the search for 'a' will be done via a search of the whole table, what is sometimes called a \"full table scan\", even if there is an index for ``column1``."
 msgstr ""
 
-msgid "Ordinarily Tarantool chooses the appropriate index or lookup method depending on a complex set of \"optimizer\" rules; the INDEXED BY clause overrides the optimizer choice."
+msgid "Ordinarily Tarantool chooses the appropriate index or lookup method depending on a complex set of \"optimizer\" rules; the INDEXED BY clause overrides the optimizer choice. If the index was defined with the :ref:`exclude_null <box_space-is_nullable>` parts option, it will only be used if the user specifies it."
 msgstr ""
 
 msgid "Suppose a table has two columns:"