Bug#37219226 json value unexpected with default ''[2, noclose]

BLOB based columns should store the NO_DEFAULT_VALUE_FLAG, not
only to behave as if the flag is stored, this way warnings will
be generated as expected.

Change-Id: Iadd7278fa9eacbb0866a242a509b97982f98a3ad

Author: Catalin Besleaga

mysql-test/r/order_by_all.result

@@ -292,6 +292,8 @@ Warnings:
 Warning	1681	Integer display width is deprecated and will be removed in a future release.
 Warning	1101	BLOB, TEXT, GEOMETRY or JSON column 'info' can't have a default value
 insert into t1 (member_id) values (1),(2),(3);
+Warnings:
+Warning	1364	Field 'info' doesn't have a default value
 select member_id, nickname, voornaam FROM t1
 ORDER by lastchange_datum DESC LIMIT 2;
 member_id	nickname	voornaam

mysql-test/r/order_by_icp_mrr.result

@@ -292,6 +292,8 @@ Warnings:
 Warning	1681	Integer display width is deprecated and will be removed in a future release.
 Warning	1101	BLOB, TEXT, GEOMETRY or JSON column 'info' can't have a default value
 insert into t1 (member_id) values (1),(2),(3);
+Warnings:
+Warning	1364	Field 'info' doesn't have a default value
 select member_id, nickname, voornaam FROM t1
 ORDER by lastchange_datum DESC LIMIT 2;
 member_id	nickname	voornaam

mysql-test/r/order_by_none.result

@@ -291,6 +291,8 @@ Warnings:
 Warning	1681	Integer display width is deprecated and will be removed in a future release.
 Warning	1101	BLOB, TEXT, GEOMETRY or JSON column 'info' can't have a default value
 insert into t1 (member_id) values (1),(2),(3);
+Warnings:
+Warning	1364	Field 'info' doesn't have a default value
 select member_id, nickname, voornaam FROM t1
 ORDER by lastchange_datum DESC LIMIT 2;
 member_id	nickname	voornaam

mysql-test/r/type_blob.result

@@ -529,6 +529,8 @@ create table t1 (id integer auto_increment unique,imagem LONGBLOB not null defau
 Warnings:
 Warning	1101	BLOB, TEXT, GEOMETRY or JSON column 'imagem' can't have a default value
 insert into t1 (id) values (1);
+Warnings:
+Warning	1364	Field 'imagem' doesn't have a default value
 select
 charset(load_file('../../std_data/words.dat')),
 collation(load_file('../../std_data/words.dat')),
@@ -820,6 +822,8 @@ t1	CREATE TABLE `t1` (
   `a` text
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
 insert into t1 values (default);
+Warnings:
+Warning	1364	Field 'a' doesn't have a default value
 select * from t1;
 a
 NULL

mysql-test/r/type_ranges.result

@@ -145,6 +145,9 @@ Warning	1264	Out of range value for column 'ushort' at row 1
 Warning	1264	Out of range value for column 'umedium' at row 1
 Warning	1265	Data truncated for column 'options' at row 1
 insert into t1 (tiny) values (1);
+Warnings:
+Warning	1364	Field 'mediumblob_col' doesn't have a default value
+Warning	1364	Field 'longblob_col' doesn't have a default value
 select auto,string,tiny,short,medium,long_int,longlong,real_float,real_double,utiny,ushort,umedium,ulong,ulonglong,mod(floor(time_stamp/1000000),1000000)-mod(curdate(),1000000),date_field,time_field,date_time,blob_col,tinyblob_col,mediumblob_col,longblob_col from t1;
 auto	string	tiny	short	medium	long_int	longlong	real_float	real_double	utiny	ushort	umedium	ulong	ulonglong	mod(floor(time_stamp/1000000),1000000)-mod(curdate(),1000000)	date_field	time_field	date_time	blob_col	tinyblob_col	mediumblob_col	longblob_col
 10	1	1	1	1	1	1	1.0	1.0000	1	00001	1	1	1	0	0000-00-00	00:00:00	0000-00-00 00:00:00	1	1	1	1

mysql-test/suite/json/r/json_innodb.result

@@ -327,6 +327,8 @@ CREATE TABLE t0(a int, b BLOB NOT NULL DEFAULT '');
 Warnings:
 Warning	1101	BLOB, TEXT, GEOMETRY or JSON column 'b' can't have a default value
 INSERT INTO t0(a) VALUES (1),(2);
+Warnings:
+Warning	1364	Field 'b' doesn't have a default value
 SHOW CREATE TABLE t0;
 Table	Create Table
 t0	CREATE TABLE `t0` (

sql/create_field.cc

@@ -429,6 +429,7 @@ bool Create_field::init(
                               ER_THD(thd, ER_BLOB_CANT_HAVE_DEFAULT), fld_name);
         }
         constant_default = nullptr;
+        if (fld_type != MYSQL_TYPE_JSON) flags |= NO_DEFAULT_VALUE_FLAG;
       }
 
       flags |= BLOB_FLAG;