MDEV-25142: JSON_TABLE: CREATE VIEW involving EXISTS PATH ends up with invalid frm

Author: spetrunia

mysql-test/suite/json/t/json_table.test

@@ -377,6 +377,17 @@ from
 
 drop table t20,t21,t31,t32;
 
+--echo #
+--echo # MDEV-25142: JSON_TABLE: CREATE VIEW involving EXISTS PATH ends up with invalid frm
+--echo #
+--disable_warnings
+drop view if exists v1;
+--enable_warnings
+
+CREATE VIEW v1 AS SELECT * FROM JSON_TABLE('[]', '$' COLUMNS (f INT EXISTS PATH '$')) a ;
+show create view v1;
+drop view v1;
+
 --echo #
 --echo # End of 10.6 tests
 --echo #

sql/json_table.cc

@@ -982,7 +982,7 @@ int Json_table_column::print(THD *thd, Field **f, String *str)
     (*f)->sql_type(column_type);
 
     if (str->append(column_type) ||
-        str->append(m_column_type == PATH ? " PATH " : " EXISTS ") ||
+        str->append(m_column_type == PATH ? " PATH " : " EXISTS PATH ") ||
         print_path(str, &m_path))
       return 1;
     break;