fix: select star (#33763)

tests/unit_tests/db_engine_specs/test_postgres.py

@@ -22,10 +22,12 @@ import pytest
 from pytest_mock import MockerFixture
 from sqlalchemy import column, types
 from sqlalchemy.dialects.postgresql import DOUBLE_PRECISION, ENUM, JSON
+from sqlalchemy.engine.interfaces import Dialect
 from sqlalchemy.engine.url import make_url
 
 from superset.db_engine_specs.postgres import PostgresEngineSpec as spec  # noqa: N813
 from superset.exceptions import SupersetSecurityException
+from superset.sql.parse import Table
 from superset.utils.core import GenericDataType
 from tests.unit_tests.db_engine_specs.utils import (
     assert_column_spec,
@@ -243,3 +245,38 @@ def test_timegrain_expressions(time_grain: str, expected_result: str) -> None:
         spec.get_timestamp_expr(col=column("col"), pdf=None, time_grain=time_grain)
     )
     assert actual == expected_result
+
+
+def test_select_star(mocker: MockerFixture) -> None:
+    """
+    Test the ``select_star`` method.
+    """
+    database = mocker.MagicMock()
+    engine = mocker.MagicMock()
+
+    def quote_table(table: Table, dialect: Dialect) -> str:
+        return ".".join(
+            part for part in (table.catalog, table.schema, table.table) if part
+        )
+
+    mocker.patch.object(spec, "quote_table", quote_table)
+
+    spec.select_star(
+        database=database,
+        table=Table("my_table", "my_schema", "my_catalog"),
+        engine=engine,
+        limit=100,
+        show_cols=False,
+        indent=True,
+        latest_partition=False,
+        cols=None,
+    )
+
+    query = database.compile_sqla_query.mock_calls[0][1][0]
+    assert (
+        str(query)
+        == """
+SELECT * \nFROM my_schema.my_table
+ LIMIT :param_1
+    """.strip()
+    )