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MDEV-34716 Allow arbitrary options in CREATE SERVER

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The existing syntax for CREATE SERVER

CREATE [OR REPLACE] SERVER [IF NOT EXISTS] server_name
    FOREIGN DATA WRAPPER wrapper_name
    OPTIONS (option [, option] ...)

option:
  { HOST character-literal
  | DATABASE character-literal
  | USER character-literal
  | PASSWORD character-literal
  | SOCKET character-literal
  | OWNER character-literal
  | PORT numeric-literal }

With this change we have:

option:
  { HOST character-literal
  | DATABASE character-literal
  | USER character-literal
  | PASSWORD character-literal
  | SOCKET character-literal
  | OWNER character-literal
  | PORT numeric-literal
  | PORT quoted-numerical-literal
  | identifier character-literal}

We store these options as a JSON field in the mysql.servers system
table. We retain the restriction that PORT needs to be a number, but
also allow it to be a quoted number, so that SHOW CREATE SERVER can be
used for dumping. Without an accompanied implementation of SHOW CREATE
SERVER, some mysqldump tests will fail. Therefore this commit should
be immediately followed by the one implementating SHOW CREATE SERVER,
with testing covering both.
This commit is contained in:
Yuchen Pei
2024-09-05 16:12:35 +10:00
parent 2345407b8c
commit d2eba35653
21 changed files with 222 additions and 19 deletions
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7
scripts/mariadb_system_tables_fix.sql
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@ -901,3 +901,10 @@ ALTER TABLE servers
# MDEV-34716 Fix mysql.servers socket max length too short
ALTER TABLE servers
MODIFY Socket char(108) NOT NULL DEFAULT '';
# MDEV-34716 Allow arbitrary options in CREATE SERVER
ALTER TABLE servers
ADD Options JSON NOT NULL DEFAULT '{}' CHECK(JSON_VALID(Options));
# Ensure the collation is utf8mb4_bin (default for JSON)
ALTER TABLE servers
MODIFY Options JSON NOT NULL DEFAULT '{}' CHECK(JSON_VALID(Options));