diff --git a/src/sphinxexpr.cpp b/src/sphinxexpr.cpp
index 6458da6888..52acab919a 100644
--- a/src/sphinxexpr.cpp
+++ b/src/sphinxexpr.cpp
@@ -2657,11 +2657,13 @@ static inline ESphAttr GetIntType ( int64_t iValue )
 /// get the widest numeric type of the two
 static inline ESphAttr WidestType ( ESphAttr a, ESphAttr b )
 {
-	assert ( IsNumeric(a) && IsNumeric(b) );
+	assert ( ( IsNumeric(a) && IsNumeric(b) ) || ( IsNumeric(a) && b==SPH_ATTR_JSON_FIELD ) || ( a==SPH_ATTR_JSON_FIELD && IsNumeric(b) ) );
 	if ( a==SPH_ATTR_FLOAT || b==SPH_ATTR_FLOAT )
 		return SPH_ATTR_FLOAT;
 	if ( a==SPH_ATTR_BIGINT || b==SPH_ATTR_BIGINT )
 		return SPH_ATTR_BIGINT;
+	if ( a==SPH_ATTR_JSON_FIELD || b==SPH_ATTR_JSON_FIELD )
+		return SPH_ATTR_BIGINT;
 	return SPH_ATTR_INTEGER;
 }
 
diff --git a/src/sphinxexpr.y b/src/sphinxexpr.y
index 77caf81ae8..4d049a9c45 100644
--- a/src/sphinxexpr.y
+++ b/src/sphinxexpr.y
@@ -203,6 +203,7 @@ function:
 	| TOK_UDF '(' arglist ')'		{ $$ = pParser->AddNodeUdf ( $1, $3 ); if ( $$<0 ) YYERROR; }
 	| TOK_UDF '(' ')'				{ $$ = pParser->AddNodeUdf ( $1, -1 ); if ( $$<0 ) YYERROR; }
 	| TOK_FUNC_IN '(' arg ',' constlist_or_uservar ')'{ $$ = pParser->AddNodeIn ( $3, $5 ); }
+	| json_field TOK_FUNC_IN '(' constlist_or_uservar ')'{ $$ = pParser->AddNodeIn ( $1, $4 ); }
 	| TOK_HOOK_FUNC '(' arglist ')' { $$ = pParser->AddNodeHookFunc ( $1, $3 ); if ( $$<0 ) YYERROR; }
 	| TOK_FUNC_JA '(' expr for_loop ')' { $$ = pParser->AddNodeFor ( $1, $3, $4 ); }
 	| TOK_FUNC_REMAP '(' expr ',' expr ',' '(' constlist ')' ',' '(' constlist ')' ')' { $$ = pParser->AddNodeRemap ( $3, $5, $8, $12 ); }
diff --git a/src/sphinxql.y b/src/sphinxql.y
index 0018d9e138..1fc9ebb852 100644
--- a/src/sphinxql.y
+++ b/src/sphinxql.y
@@ -959,6 +959,7 @@ expr:
 function:
 	TOK_IDENT '(' arglist ')'		{ TRACK_BOUNDS ( $$, $1, $4 ); }
 	| TOK_IN '(' arglist ')'		{ TRACK_BOUNDS ( $$, $1, $4 ); } // handle exception from 'ident' rule
+	| json_field TOK_IN '(' arglist ')' { TRACK_BOUNDS ( $$, $1, $5 ); } // handle exception from 'ident' rule
 	| TOK_INTEGER '(' arglist ')'	{ TRACK_BOUNDS ( $$, $1, $4 ); }
 	| TOK_BIGINT '(' arglist ')'	{ TRACK_BOUNDS ( $$, $1, $4 ); }
 	| TOK_FLOAT '(' arglist ')'		{ TRACK_BOUNDS ( $$, $1, $4 ); }
diff --git a/test/test_361/model.bin b/test/test_361/model.bin
new file mode 100644
index 0000000000..a3123f50d9
--- /dev/null
+++ b/test/test_361/model.bin
@@ -0,0 +1 @@
+a:1:{i:0;a:15:{i:0;a:3:{s:8:"sphinxql";s:18:"select * from test";s:10:"total_rows";i:2;s:4:"rows";a:2:{i:0;a:3:{s:2:"id";s:1:"1";s:3:"gid";s:1:"1";s:1:"j";s:15:"{"a":5,"b":123}";}i:1;a:3:{s:2:"id";s:1:"2";s:3:"gid";s:1:"1";s:1:"j";s:17:"{"a":101,"b":134}";}}}i:1;a:3:{s:8:"sphinxql";s:39:"select * from test where j.a IN (5,100)";s:10:"total_rows";i:1;s:4:"rows";a:1:{i:0;a:3:{s:2:"id";s:1:"1";s:3:"gid";s:1:"1";s:1:"j";s:15:"{"a":5,"b":123}";}}}i:2;a:3:{s:8:"sphinxql";s:57:"select *, IN(j.b, 100, 134) as cnd from test where cnd<>0";s:10:"total_rows";i:1;s:4:"rows";a:1:{i:0;a:4:{s:2:"id";s:1:"2";s:3:"gid";s:1:"1";s:1:"j";s:17:"{"a":101,"b":134}";s:3:"cnd";s:1:"1";}}}i:3;a:3:{s:8:"sphinxql";s:56:"select *, j.b IN(100, 134) as cnd from test where cnd<>0";s:10:"total_rows";i:1;s:4:"rows";a:1:{i:0;a:4:{s:2:"id";s:1:"2";s:3:"gid";s:1:"1";s:1:"j";s:17:"{"a":101,"b":134}";s:3:"cnd";s:1:"1";}}}i:4;a:3:{s:8:"sphinxql";s:39:"select * from dist where j.a IN (5,100)";s:10:"total_rows";i:1;s:4:"rows";a:1:{i:0;a:3:{s:2:"id";s:1:"1";s:3:"gid";s:1:"1";s:1:"j";s:15:"{"a":5,"b":123}";}}}i:5;a:3:{s:8:"sphinxql";s:57:"select *, IN(j.b, 100, 134) as cnd from dist where cnd<>0";s:10:"total_rows";i:1;s:4:"rows";a:1:{i:0;a:4:{s:2:"id";s:1:"2";s:3:"gid";s:1:"1";s:1:"j";s:17:"{"a":101,"b":134}";s:3:"cnd";s:1:"1";}}}i:6;a:3:{s:8:"sphinxql";s:56:"select *, j.b IN(100, 134) as cnd from dist where cnd<>0";s:10:"total_rows";i:1;s:4:"rows";a:1:{i:0;a:4:{s:2:"id";s:1:"2";s:3:"gid";s:1:"1";s:1:"j";s:17:"{"a":101,"b":134}";s:3:"cnd";s:1:"1";}}}i:7;a:2:{s:8:"sphinxql";s:62:"INSERT INTO pq (query, filters) VALUES ('', 'j.a IN (5, 100)')";s:14:"total_affected";i:1;}i:8;a:2:{s:8:"sphinxql";s:63:"INSERT INTO pq (query, filters) VALUES ('', 'IN (j.a, 5, 100)')";s:14:"total_affected";i:1;}i:9;a:2:{s:8:"sphinxql";s:82:"INSERT INTO pq (query, filters) VALUES ('', 'j.a IN (5, 100) and CRC32(\'test\')')";s:14:"total_affected";i:1;}i:10;a:2:{s:8:"sphinxql";s:83:"INSERT INTO pq (query, filters) VALUES ('', 'IN (j.a, 5, 100) and CRC32(\'test\')')";s:14:"total_affected";i:1;}i:11;a:2:{s:8:"sphinxql";s:84:"INSERT INTO pq (query, filters) VALUES ('', 'j.a IN (5, 100) or IN (j.b, 134, 200)')";s:14:"total_affected";i:1;}i:12;a:2:{s:8:"sphinxql";s:84:"INSERT INTO pq (query, filters) VALUES ('', 'IN (j.a, 5, 100) or j.b IN (134, 200)')";s:14:"total_affected";i:1;}i:13;a:3:{s:8:"sphinxql";s:93:"CALL PQ ('pq', ('{"j":{"a":5, "b":123}}', '{"j":{"a":101, "b":134}}'), 1 as docs, 1 as query)";s:10:"total_rows";i:6;s:4:"rows";a:6:{i:0;a:5:{s:3:"UID";s:1:"1";s:9:"Documents";s:1:"1";s:5:"Query";s:0:"";s:4:"Tags";s:0:"";s:7:"Filters";s:15:" j.a IN (5,100)";}i:1;a:5:{s:3:"UID";s:1:"2";s:9:"Documents";s:1:"1";s:5:"Query";s:0:"";s:4:"Tags";s:0:"";s:7:"Filters";s:17:" IN (j.a, 5, 100)";}i:2;a:5:{s:3:"UID";s:1:"3";s:9:"Documents";s:1:"1";s:5:"Query";s:0:"";s:4:"Tags";s:0:"";s:7:"Filters";s:34:" j.a IN (5, 100) and CRC32('test')";}i:3;a:5:{s:3:"UID";s:1:"4";s:9:"Documents";s:1:"1";s:5:"Query";s:0:"";s:4:"Tags";s:0:"";s:7:"Filters";s:35:" IN (j.a, 5, 100) and CRC32('test')";}i:4;a:5:{s:3:"UID";s:1:"5";s:9:"Documents";s:3:"1,2";s:5:"Query";s:0:"";s:4:"Tags";s:0:"";s:7:"Filters";s:38:" j.a IN (5, 100) or IN (j.b, 134, 200)";}i:5;a:5:{s:3:"UID";s:1:"6";s:9:"Documents";s:3:"1,2";s:5:"Query";s:0:"";s:4:"Tags";s:0:"";s:7:"Filters";s:38:" IN (j.a, 5, 100) or j.b IN (134, 200)";}}}i:14;a:3:{s:8:"sphinxql";s:39:"select *, IN (missed.a,5,100) from test";s:5:"error";s:47:"index test: parse error: unknown column: missed";s:5:"errno";i:1064;}}}
\ No newline at end of file
diff --git a/test/test_361/test.xml b/test/test_361/test.xml
new file mode 100644
index 0000000000..a965370c49
--- /dev/null
+++ b/test/test_361/test.xml
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="utf-8"?>
+<test>
+
+<name>IN filter vs expression</name>
+
+<config>
+indexer
+{
+	mem_limit				= 16M
+}
+
+searchd
+{
+	<searchd_settings/>
+	workers = threads
+}
+
+source test
+{
+	type			= mysql
+	<sql_settings/>
+	sql_query		= select * from test_table
+	sql_attr_uint	= gid
+	sql_attr_json	= j
+}
+
+index test
+{
+	source			= test
+	path			= <data_path/>/test
+}
+
+index pq
+{
+	type = percolate
+	path			= <data_path/>/pq_re
+	rt_field 		= title
+	rt_attr_json	= j
+}
+
+index dist
+{
+	type			= distributed
+	agent			= <my_address/>:test
+}
+</config>
+
+<db_create>
+CREATE TABLE `test_table` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `gid` int(11) NOT NULL,
+  `title` varchar(255) NOT NULL,
+  `j` varchar(8192) NOT NULL,
+  PRIMARY KEY (`id`)
+);
+</db_create>
+<db_drop>DROP TABLE IF EXISTS `test_table`;</db_drop>
+<db_insert>
+INSERT INTO `test_table` VALUES
+(1,1,'test one','{"a":5,"b":123}'),
+(2,1,'test two','{"a":101,"b":134}')
+</db_insert>
+
+<sphqueries>
+<!-- IN for plain indexes -->
+<sphinxql>select * from test</sphinxql>
+<sphinxql>select * from test where j.a IN (5,100)</sphinxql>
+<sphinxql>select *, IN(j.b, 100, 134) as cnd from test where cnd&lt;&gt;0</sphinxql>
+<sphinxql>select *, j.b IN(100, 134) as cnd from test where cnd&lt;&gt;0</sphinxql>
+
+<!-- IN for distributed indexes -->
+<sphinxql>select * from dist where j.a IN (5,100)</sphinxql>
+<sphinxql>select *, IN(j.b, 100, 134) as cnd from dist where cnd&lt;&gt;0</sphinxql>
+<sphinxql>select *, j.b IN(100, 134) as cnd from dist where cnd&lt;&gt;0</sphinxql>
+
+<!-- IN for PQ indexes -->
+<sphinxql>INSERT INTO pq (query, filters) VALUES ('', 'j.a IN (5, 100)')</sphinxql>
+<sphinxql>INSERT INTO pq (query, filters) VALUES ('', 'IN (j.a, 5, 100)')</sphinxql>
+<sphinxql>INSERT INTO pq (query, filters) VALUES ('', 'j.a IN (5, 100) and CRC32(\'test\')')</sphinxql>
+<sphinxql>INSERT INTO pq (query, filters) VALUES ('', 'IN (j.a, 5, 100) and CRC32(\'test\')')</sphinxql>
+<sphinxql>INSERT INTO pq (query, filters) VALUES ('', 'j.a IN (5, 100) or IN (j.b, 134, 200)')</sphinxql>
+<sphinxql>INSERT INTO pq (query, filters) VALUES ('', 'IN (j.a, 5, 100) or j.b IN (134, 200)')</sphinxql>
+
+<sphinxql>CALL PQ ('pq', ('{"j":{"a":5, "b":123}}', '{"j":{"a":101, "b":134}}'), 1 as docs, 1 as query)</sphinxql>
+
+<!-- crash on IN for plain indexes -->
+<sphinxql>select *, IN (missed.a,5,100) from test</sphinxql>
+</sphqueries>
+</test>