diff --git a/src/box/sql/func.c b/src/box/sql/func.c
index 941b5523e04e89589742a967be8c2aaff705f75a..f3790ba0113571b4e08f8ea758297c41894174b9 100644
--- a/src/box/sql/func.c
+++ b/src/box/sql/func.c
@@ -972,7 +972,7 @@ likeFunc(sql_context *context, int argc, sql_value **argv)
 		sql_result_error(context, err_msg, -1);
 		return;
 	}
-	sql_result_int(context, res == MATCH);
+	sql_result_bool(context, res == MATCH);
 }
 
 /*
@@ -1859,9 +1859,9 @@ sqlRegisterLikeFunctions(sql *db, int is_case_insensitive)
 	 * supplied pattern and FALSE otherwise.
 	 */
 	int *is_like_ci = SQL_INT_TO_PTR(is_case_insensitive);
-	sqlCreateFunc(db, "LIKE", FIELD_TYPE_INTEGER, 2, 0,
+	sqlCreateFunc(db, "LIKE", FIELD_TYPE_BOOLEAN, 2, 0,
 			  is_like_ci, likeFunc, 0, 0, 0);
-	sqlCreateFunc(db, "LIKE", FIELD_TYPE_INTEGER, 3, 0,
+	sqlCreateFunc(db, "LIKE", FIELD_TYPE_BOOLEAN, 3, 0,
 			  is_like_ci, likeFunc, 0, 0, 0);
 	setLikeOptFlag(db, "LIKE",
 		       !(is_case_insensitive) ? (SQL_FUNC_LIKE |
@@ -1916,11 +1916,11 @@ sqlRegisterBuiltinFunctions(void)
 		FUNCTION(soundex, 1, 0, 0, soundexFunc),
 #endif
 		FUNCTION2(unlikely, 1, 0, 0, noopFunc, SQL_FUNC_UNLIKELY,
-			  FIELD_TYPE_INTEGER),
+			  FIELD_TYPE_BOOLEAN),
 		FUNCTION2(likelihood, 2, 0, 0, noopFunc, SQL_FUNC_UNLIKELY,
-			  FIELD_TYPE_INTEGER),
+			  FIELD_TYPE_BOOLEAN),
 		FUNCTION2(likely, 1, 0, 0, noopFunc, SQL_FUNC_UNLIKELY,
-			  FIELD_TYPE_INTEGER),
+			  FIELD_TYPE_BOOLEAN),
 		FUNCTION_COLL(trim, 1, 3, 0, trim_func_one_arg),
 		FUNCTION_COLL(trim, 2, 3, 0, trim_func_two_args),
 		FUNCTION_COLL(trim, 3, 3, 0, trim_func_three_args),
diff --git a/test/sql-tap/gh-3251-string-pattern-comparison.test.lua b/test/sql-tap/gh-3251-string-pattern-comparison.test.lua
index dec3cce91c57bed6247772871e0feb542aaaa751..861ac8ba29a101449e5b66e39ea07efcb84a3313 100755
--- a/test/sql-tap/gh-3251-string-pattern-comparison.test.lua
+++ b/test/sql-tap/gh-3251-string-pattern-comparison.test.lua
@@ -8,118 +8,118 @@ local like_test_cases =
 {
     {"1.1",
         "SELECT 'AB' LIKE '_B';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.2",
         "SELECT 'CD' LIKE '_B';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.3",
         "SELECT '' LIKE '_B';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.4",
         "SELECT 'AB' LIKE '%B';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.5",
         "SELECT 'CD' LIKE '%B';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.6",
         "SELECT '' LIKE '%B';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.7",
         "SELECT 'AB' LIKE 'A__';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.8",
         "SELECT 'CD' LIKE 'A__';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.9",
         "SELECT '' LIKE 'A__';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.10",
         "SELECT 'AB' LIKE 'A_';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.11",
         "SELECT 'CD' LIKE 'A_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.12",
         "SELECT '' LIKE 'A_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.13",
         "SELECT 'AB' LIKE 'A';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.14",
         "SELECT 'CD' LIKE 'A';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.15",
         "SELECT '' LIKE 'A';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.16",
         "SELECT 'AB' LIKE '_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.17",
         "SELECT 'CD' LIKE '_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.18",
         "SELECT '' LIKE '_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.19",
         "SELECT 'AB' LIKE '__';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.20",
         "SELECT 'CD' LIKE '__';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.21",
         "SELECT '' LIKE '__';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.22",
         "SELECT 'AB' LIKE '%A';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.23",
         "SELECT 'AB' LIKE '%C';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.24",
         "SELECT 'Ñ‘Ñ„' LIKE '%Å“Ø´';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.25",
         "SELECT 'Ñ‘Ñ„â„«Å’Ø´' LIKE '%Å“Ø´';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.26",
         "SELECT 'â„«Å’Ø´' LIKE '%Å“Ø´';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.27",
         "SELECT 'Ñ‘Ñ„' LIKE 'Ñ‘_';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.28",
         "SELECT 'Ñ‘Ñ„â„«Å’Ø´' LIKE 'Ñ‘_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.29",
         "SELECT 'â„«Å’Ø´' LIKE 'Ñ‘_';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.30",
         "SELECT 'Ñ‘Ñ„' LIKE 'Ñ‘Ñ„%';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.31",
         "SELECT 'Ñ‘Ñ„â„«Å’Ø´' LIKE 'Ñ‘Ñ„%';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.32",
         "SELECT 'â„«Å’Ø´' LIKE 'Ñ‘Ñ„%';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.33",
         "SELECT 'Ñ‘Ñ„' LIKE 'Ñ‘Ñ„â„«%';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.34",
         "SELECT 'Ñ‘Ñ„â„«Å’Ø´' LIKE 'Ñ‘Ñ„â„«%';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.35",
         "SELECT 'â„«Å’Ø´' LIKE 'Ñ‘Ñ„Ø´%';",
-        {0, {0}} },
+        {0, {false}} },
     {"1.36",
         "SELECT 'Ñ‘Ñ„' LIKE 'Ñ‘_%';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.37",
         "SELECT 'Ñ‘Ñ„â„«Å’Ø´' LIKE 'Ñ‘_%';",
-        {0, {1}} },
+        {0, {true}} },
     {"1.38",
         "SELECT 'â„«Å’Ø´' LIKE 'Ñ‘_%';",
-        {0, {0}} },
+        {0, {false}} },
 }
 
 test:do_catchsql_set_test(like_test_cases, prefix)