(1) cleans up some dead code related to CREATE/DROP EXTERNAL SCHEMA (a feature we never ended up implementing in PGX)
(2) makes sure that we always print table, graph and schema names with double quotes in case of CREATE/DROP PROPERTY GRAPH. This because GraphViz may run pretty-printed statements in SQL and not just PGQL, and quoting rules for SQL and PGQL are different since the reserved keywords for PGQL is a much shorter list.
In addition, this PR:
(1) cleans up some dead code related to CREATE/DROP EXTERNAL SCHEMA (a feature we never ended up implementing in PGX) (2) makes sure that we always print table, graph and schema names with double quotes in case of CREATE/DROP PROPERTY GRAPH. This because GraphViz may run pretty-printed statements in SQL and not just PGQL, and quoting rules for SQL and PGQL are different since the reserved keywords for PGQL is a much shorter list.
PGQL parser version 2.0.3.x