Remove unnessary crawl in get_select_statement_info (#1974)

Co-authored-by: Danny Jones <51742311+WittierDinosaur@users.noreply.github.com>

src/sqlfluff/core/rules/analysis/select.py

@@ -31,8 +31,6 @@ def get_select_statement_info(
     # potential others.
     sc = segment.get_child("select_clause")
     reference_buffer = list(sc.recursive_crawl("object_reference"))
-    # Add any wildcard references
-    reference_buffer += list(sc.recursive_crawl("wildcard_identifier"))
     for potential_clause in (
         "where_clause",
         "groupby_clause",

src/sqlfluff/rules/L027.py

@@ -1,10 +1,10 @@
 """Implementation of Rule L027."""
 
 from sqlfluff.core.rules.base import LintResult
-from sqlfluff.rules.L025 import Rule_L025
+from sqlfluff.rules.L020 import Rule_L020
 
 
-class Rule_L027(Rule_L025):
+class Rule_L027(Rule_L020):
     """References should be qualified if select has more than one referenced table/view.
 
     NB: Except if they're present in a USING clause.

test/rules/std_L027_test.py

@@ -0,0 +1,15 @@
+"""Tests the python routines within L027."""
+
+import sqlfluff
+
+
+def test__rules__std_L027_wildcard_single_count():
+    """Verify that L027 is only raised once for wildcard (see issue #1973)."""
+    sql = """
+        SELECT *
+        FROM foo
+        INNER JOIN bar;
+    """
+    result = sqlfluff.lint(sql)
+    assert "L027" in [r["code"] for r in result]
+    assert [r["code"] for r in result].count("L027") == 1