not supporting create table as in postgres dialect

[reata]

CREATE TABLE bar AS
SELECT *
FROM foo

$ sqllineage -f test.sql --dialect=postgres
Traceback (most recent call last):
  File "/home/hujunwei/.pyenv/versions/3.8.6/bin/sqllineage", line 8, in <module>
    sys.exit(main())
  File "/home/hujunwei/.pyenv/versions/3.8.6/lib/python3.8/site-packages/sqllineage/cli.py", line 101, in main
    runner.print_table_lineage()
  File "/home/hujunwei/.pyenv/versions/3.8.6/lib/python3.8/site-packages/sqllineage/runner.py", line 168, in print_table_lineage
    print(str(self))
  File "/home/hujunwei/.pyenv/versions/3.8.6/lib/python3.8/site-packages/sqllineage/runner.py", line 22, in wrapper
    self._eval()
  File "/home/hujunwei/.pyenv/versions/3.8.6/lib/python3.8/site-packages/sqllineage/runner.py", line 177, in _eval
    self._stmt_holders = [analyzer.analyze(stmt) for stmt in self._stmt]
  File "/home/hujunwei/.pyenv/versions/3.8.6/lib/python3.8/site-packages/sqllineage/runner.py", line 177, in <listcomp>
    self._stmt_holders = [analyzer.analyze(stmt) for stmt in self._stmt]
  File "/home/hujunwei/.pyenv/versions/3.8.6/lib/python3.8/site-packages/sqllineage/core/parser/sqlfluff/analyzer.py", line 69, in analyze
    raise UnsupportedStatementException(
sqllineage.exceptions.UnsupportedStatementException: SQLLineage doesn't support analyzing statement type [create_table_as_statement] for SQL:CREATE TABLE bar AS
SELECT *
FROM foo