[Tarantool-patches] [PATCH 1/3] sql: LENGTH function accepts boolean

[Vladislav Shpilevoy <v.shpilevoy@tarantool.org>]

Before the patch LENGTH didn't take boolean argument
into account. Now it does and treats like any other
non-string argument - stringify and calculate length.

It is worth mentioning, that in future LENGTH will
discard any non-string argument, see #3929.

Part of #4462
---
 src/box/sql/func.c        | 1 +
 test/sql/boolean.result   | 5 +++--
 test/sql/boolean.test.sql | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/box/sql/func.c b/src/box/sql/func.c
index d5ea0fe6a..12a4bee04 100644
--- a/src/box/sql/func.c
+++ b/src/box/sql/func.c
@@ -458,6 +458,7 @@ lengthFunc(sql_context * context, int argc, sql_value ** argv)
 	case MP_BIN:
 	case MP_INT:
 	case MP_UINT:
+	case MP_BOOL:
 	case MP_DOUBLE:{
 			sql_result_uint(context, sql_value_bytes(argv[0]));
 			break;
diff --git a/test/sql/boolean.result b/test/sql/boolean.result
index 352649136..ac9f7fcaf 100644
--- a/test/sql/boolean.result
+++ b/test/sql/boolean.result
@@ -311,14 +311,15 @@ SELECT quote(a) FROM t0;
  |   - ['NULL']
  |   - ['NULL']
  | ...
+-- gh-4462: LENGTH didn't take BOOLEAN arguments.
 SELECT length(a) FROM t0;
  | ---
  | - metadata:
  |   - name: length(a)
  |     type: integer
  |   rows:
- |   - [null]
- |   - [null]
+ |   - [5]
+ |   - [4]
  |   - [null]
  |   - [null]
  | ...
diff --git a/test/sql/boolean.test.sql b/test/sql/boolean.test.sql
index 9d71139fd..68a05852f 100644
--- a/test/sql/boolean.test.sql
+++ b/test/sql/boolean.test.sql
@@ -82,6 +82,7 @@ SELECT abs(a) FROM t0;
 SELECT lower(a) FROM t0;
 SELECT upper(a) FROM t0;
 SELECT quote(a) FROM t0;
+-- gh-4462: LENGTH didn't take BOOLEAN arguments.
 SELECT length(a) FROM t0;
 SELECT typeof(a) FROM t0;
 
-- 
2.21.0 (Apple Git-122)