Cherry-pick: Quote index names to preserve case (#1521)

[GingerAdonis]

Upstream PR

dimitri#1521

Summary

Adds double-quoting around index names in CREATE INDEX DDL statements to preserve case. Changes CREATE UNIQUE INDEX ~a to CREATE UNIQUE INDEX "~a".

Files

• src/pgsql/pgsql-ddl.lisp
• Dockerfile (unrelated changes)

Notes

• +6/-3 lines (code), but also has unrelated Dockerfile libssl changes
• Cherry-pick only the pgsql-ddl.lisp change
• Fixes upstream preserve index names doesn't respect quote identifiers dimitri/pgloader#1327
• Priority: Lower