[LucaCappelletti94]

CREATE EXTENSION hstore SCHEMA exts failed to parse under PostgreSqlDialect with Expected: end of statement, found: SCHEMA, and so did options written out of order, such as CREATE EXTENSION pgcrypto WITH VERSION '1.3' SCHEMA exts. PostgreSQL makes WITH optional and takes SCHEMA, VERSION and CASCADE in any order (https://www.postgresql.org/docs/current/sql-createextension.html). PostgreSQL 18 accepts both statements and rejects an option given twice with conflicting or redundant options.

Some of these valid syntaxes look rather odd, but I did verify that each works.

parse_create_extension now reads an optional WITH and then the options in any order, rejecting a repeated one. CreateExtension gains a with_keyword field so both spellings round-trip. The options stay in the existing schema, version and cascade fields, so Display writes them in that order.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.57%. Comparing base (9f66d76) to head (cff51ad).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2742      +/-   ##
==========================================
+ Coverage   82.54%   82.57%   +0.02%     
==========================================
  Files          42       42              
  Lines       35556    35562       +6     
  Branches    35556    35562       +6     
==========================================
+ Hits        29349    29364      +15     
+ Misses       2672     2670       -2     
+ Partials     3535     3528       -7     

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