[MDEV-25183] JSON_TABLE: CREATE VIEW involving NESTED PATH ends up with invalid frm Created: 2021-03-17  Updated: 2021-04-21  Resolved: 2021-03-19

Status: Closed
Project: MariaDB Server
Component/s: JSON, Views
Affects Version/s: N/A
Fix Version/s: 10.6.0

Type: Bug Priority: Critical
Reporter: Elena Stepanova Assignee: Alexey Botchkov
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Relates
relates to MDEV-17399 Add support for JSON_TABLE Closed

 Description   

Note: Patch for MDEV-25142 is already in the tree, and the test case from there doesn't fail.

CREATE OR REPLACE VIEW v AS SELECT * FROM JSON_TABLE('{}', '$' COLUMNS(NESTED PATH '$**.*' COLUMNS(a FOR ORDINALITY), b VARCHAR(8) PATH '$')) AS jt;
SELECT * FROM v;

bb-10.6-mdev17399-hf 8611fb30bc

MariaDB [test]> CREATE OR REPLACE VIEW v AS SELECT * FROM JSON_TABLE('{}', '$' COLUMNS(NESTED PATH '$**.*' COLUMNS(a FOR ORDINALITY), b VARCHAR(8) PATH '$')) AS jt;
Query OK, 0 rows affected (0.015 sec)
 
MariaDB [test]> SELECT * FROM v;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '), `b` varchar(8) PATH '$')) `jt`' at line 1

frm

TYPE=VIEW
query=select `jt`.`a` AS `a`,`jt`.`b` AS `b` from JSON_TABLE(\'{}\', \'$\' COLUMNS (NESTED PATH \'$**.*\'COLUMNS (`a` FOR ORDINALITY, ), `b` varchar(8) PATH \'$\')) `jt`
md5=e7bd531bffd0aa8f52eed72da11e08c1
updatable=1
algorithm=0
definer_user=root
definer_host=localhost
suid=2
with_check_option=0
timestamp=2021-03-17 23:04:36
create-version=2
source=SELECT * FROM JSON_TABLE(\'{}\', \'$\' COLUMNS(NESTED PATH \'$**.*\' COLUMNS(a FOR ORDINALITY), b VARCHAR(8) PATH \'$\')) AS jt
client_cs_name=utf8
connection_cl_name=utf8_general_ci
view_body_utf8=select `jt`.`a` AS `a`,`jt`.`b` AS `b` from JSON_TABLE(\'{}\', \'$\' COLUMNS (NESTED PATH \'$**.*\'COLUMNS (`a` FOR ORDINALITY, ), `b` varchar(8) PATH \'$\')) `jt`
mariadb-version=100600


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