MDEV-31566: Fix buffer overrun of column_json function (postfix)

Test case failed --view protocol. Revert to using table for data
in the test.

mysql-test/main/dyncol.result

@@ -1963,10 +1963,14 @@ ex
 #
 # MDEV-31566 Fix buffer overrun of column_json function
 #
-select column_json(0x0402000A0000000300030023076A736E7375626A6563742E0005006C0027000200290002002B0002002D0002002F0002000C31000C3B000C4B000C51000F62006631663266336634663509E5A79AE8BF9CE6B48B0FE8819AE9809AE98791E6A1A5E5BA970537343530301031313634332F393634352F31313630300C080000000000EFBFBDEFBFBD192E);
-column_json(0x0402000A0000000300030023076A736E7375626A6563742E0005006C0027000200290002002B0002002D0002002F0002000C31000C3B000C4B000C51000F62006631663266336634663509E5A79AE8BF9CE6B48B0FE8819AE9809AE98791E6A1A5E5BA970537343530301031313634332F393634352F31313
-{"jsn":"\u0000\u0005\u0000l\u0000'\u0000\u0002\u0000)\u0000\u0002\u0000+\u0000\u0002\u0000-\u0000\u0002\u0000/\u0000\u0002\u0000\u000C1\u0000\u000C;\u0000\u000CK\u0000\u000CQ\u0000\u000Fb\u0000f1f2f3f4f5\u0009姚远洋\u000F聚通金桥店\u000574500\u001011643/9645/11600\u000C\u0008\u0000\u0000\u0000\u0000\u0000��\u0019","subject":""}
-select column_json(0x0402000900000003000300740C6A736E766F6C756D652E000900EFBFBD004300020045000200470003004A0004004E00050053000500580005005D000500620005000C67000C6A000C6D000C7000052C00051B00052C000CEFBFBD0007EFBFBD006638663966313070696332626F785F63626F785F67626F785F6B626F785F7666355F696402343402343402333241687474703A2F2F6F73732E68646238382E636F6D2F302F70686F746F2F30373865653765376336343634616236386130343833373333323636613532612E67696608302E303532323732244F1E00030180C106);
-column_json(0x0402000900000003000300740C6A736E766F6C756D652E000900EFBFBD004300020045000200470003004A0004004E00050053000500580005005D000500620005000C67000C6A000C6D000C7000052C00051B00052C000CEFBFBD0007EFBFBD006638663966313070696332626F785F63626F785F67626F7
-{"jsn":"\u0000\u0009\u0000�\u0000C\u0000\u0002\u0000E\u0000\u0002\u0000G\u0000\u0003\u0000J\u0000\u0004\u0000N\u0000\u0005\u0000S\u0000\u0005\u0000X\u0000\u0005\u0000]\u0000\u0005\u0000b\u0000\u0005\u0000\u000Cg\u0000\u000Cj\u0000\u000Cm\u0000\u000Cp\u0000\u0005,\u0000\u0005\u001B\u0000\u0005,\u0000\u000C�\u0000\u0007�\u0000f8f9f10pic2box_cbox_gbox_kbox_vf5_id\u000244\u000244\u000232Ahttp://oss.hdb88.com/0/photo/078ee7e7c6464ab68a0483733266a52a.gif\u00080.052272$O\u001E\u0000","volume":193.6}
+create table t1 (
+c1 varchar(32) primary key,
+d1  blob
+);
+insert into t1 values ('var', 0x0402000A0000000300030023076A736E7375626A6563742E0005006C0027000200290002002B0002002D0002002F0002000C31000C3B000C4B000C51000F62006631663266336634663509E5A79AE8BF9CE6B48B0FE8819AE9809AE98791E6A1A5E5BA970537343530301031313634332F393634352F31313630300C080000000000EFBFBDEFBFBD192E), ('zzz', 0x0402000900000003000300740C6A736E766F6C756D652E000900EFBFBD004300020045000200470003004A0004004E00050053000500580005005D000500620005000C67000C6A000C6D000C7000052C00051B00052C000CEFBFBD0007EFBFBD006638663966313070696332626F785F63626F785F67626F785F6B626F785F7666355F696402343402343402333241687474703A2F2F6F73732E68646238382E636F6D2F302F70686F746F2F30373865653765376336343634616236386130343833373333323636613532612E67696608302E303532323732244F1E00030180C106);
+select c1,column_json(d1) as not_crashing from t1 order by c1;
+c1	not_crashing
+var	{"jsn":"\u0000\u0005\u0000l\u0000'\u0000\u0002\u0000)\u0000\u0002\u0000+\u0000\u0002\u0000-\u0000\u0002\u0000/\u0000\u0002\u0000\u000C1\u0000\u000C;\u0000\u000CK\u0000\u000CQ\u0000\u000Fb\u0000f1f2f3f4f5\u0009姚远洋\u000F聚通金桥店\u000574500\u001011643/9645/11600\u000C\u0008\u0000\u0000\u0000\u0000\u0000��\u0019","subject":""}
+zzz	{"jsn":"\u0000\u0009\u0000�\u0000C\u0000\u0002\u0000E\u0000\u0002\u0000G\u0000\u0003\u0000J\u0000\u0004\u0000N\u0000\u0005\u0000S\u0000\u0005\u0000X\u0000\u0005\u0000]\u0000\u0005\u0000b\u0000\u0005\u0000\u000Cg\u0000\u000Cj\u0000\u000Cm\u0000\u000Cp\u0000\u0005,\u0000\u0005\u001B\u0000\u0005,\u0000\u000C�\u0000\u0007�\u0000f8f9f10pic2box_cbox_gbox_kbox_vf5_id\u000244\u000244\u000232Ahttp://oss.hdb88.com/0/photo/078ee7e7c6464ab68a0483733266a52a.gif\u00080.052272$O\u001E\u0000","volume":193.6}
+drop table t1;
 # End of 10.5 tests

mysql-test/main/dyncol.test

@@ -1014,7 +1014,15 @@ SELECT hex(column_add(column_create(
 --echo # MDEV-31566 Fix buffer overrun of column_json function
 --echo #
 
-select column_json(0x0402000A0000000300030023076A736E7375626A6563742E0005006C0027000200290002002B0002002D0002002F0002000C31000C3B000C4B000C51000F62006631663266336634663509E5A79AE8BF9CE6B48B0FE8819AE9809AE98791E6A1A5E5BA970537343530301031313634332F393634352F31313630300C080000000000EFBFBDEFBFBD192E);
-select column_json(0x0402000900000003000300740C6A736E766F6C756D652E000900EFBFBD004300020045000200470003004A0004004E00050053000500580005005D000500620005000C67000C6A000C6D000C7000052C00051B00052C000CEFBFBD0007EFBFBD006638663966313070696332626F785F63626F785F67626F785F6B626F785F7666355F696402343402343402333241687474703A2F2F6F73732E68646238382E636F6D2F302F70686F746F2F30373865653765376336343634616236386130343833373333323636613532612E67696608302E303532323732244F1E00030180C106);
+
+create table t1 (
+  c1 varchar(32) primary key,
+  d1  blob
+);
+insert into t1 values ('var', 0x0402000A0000000300030023076A736E7375626A6563742E0005006C0027000200290002002B0002002D0002002F0002000C31000C3B000C4B000C51000F62006631663266336634663509E5A79AE8BF9CE6B48B0FE8819AE9809AE98791E6A1A5E5BA970537343530301031313634332F393634352F31313630300C080000000000EFBFBDEFBFBD192E), ('zzz', 0x0402000900000003000300740C6A736E766F6C756D652E000900EFBFBD004300020045000200470003004A0004004E00050053000500580005005D000500620005000C67000C6A000C6D000C7000052C00051B00052C000CEFBFBD0007EFBFBD006638663966313070696332626F785F63626F785F67626F785F6B626F785F7666355F696402343402343402333241687474703A2F2F6F73732E68646238382E636F6D2F302F70686F746F2F30373865653765376336343634616236386130343833373333323636613532612E67696608302E303532323732244F1E00030180C106);
+
+select c1,column_json(d1) as not_crashing from t1 order by c1;
+
+drop table t1;
 
 --echo # End of 10.5 tests