fix: ignore constraints in dbt seed column types (#5535)

Author: geooo109

pyproject.toml

@@ -24,7 +24,7 @@ dependencies = [
     "requests",
     "rich[jupyter]",
     "ruamel.yaml",
-    "sqlglot[rs]~=27.24.2",
+    "sqlglot[rs]~=27.27.0",
     "tenacity",
     "time-machine",
     "json-stream"

sqlmesh/dbt/column.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import typing as t
+import logging
 
 from sqlglot import exp, parse_one
 from sqlglot.helper import ensure_list
@@ -9,6 +10,8 @@
 from sqlmesh.utils.conversions import ensure_bool
 from sqlmesh.utils.pydantic import field_validator
 
+logger = logging.getLogger(__name__)
+
 
 def yaml_to_columns(
     yaml: t.Dict[str, ColumnConfig] | t.List[t.Dict[str, ColumnConfig]],
@@ -31,11 +34,20 @@ def column_types_to_sqlmesh(
     Returns:
         A dict of column name to exp.DataType
     """
-    return {
-        name: parse_one(column.data_type, into=exp.DataType, dialect=dialect or "")
-        for name, column in columns.items()
-        if column.enabled and column.data_type
-    }
+    col_types_to_sqlmesh: t.Dict[str, exp.DataType] = {}
+    for name, column in columns.items():
+        if column.enabled and column.data_type:
+            column_def = parse_one(
+                f"{name} {column.data_type}", into=exp.ColumnDef, dialect=dialect or ""
+            )
+            if column_def.args.get("constraints"):
+                logger.warning(
+                    f"Ignoring unsupported constraints for column '{name}' with definition '{column.data_type}'. Please refer to github.com/TobikoData/sqlmesh/issues/4717 for more information."
+                )
+            kind = column_def.kind
+            if kind:
+                col_types_to_sqlmesh[name] = kind
+    return col_types_to_sqlmesh
 
 
 def column_descriptions_to_sqlmesh(columns: t.Dict[str, ColumnConfig]) -> t.Dict[str, str]:

tests/dbt/test_transformation.py

@@ -841,6 +841,28 @@ def test_seed_column_types():
     sqlmesh_seed = seed.to_sqlmesh(context)
     assert sqlmesh_seed.columns_to_types == expected_column_types
 
+    seed = SeedConfig(
+        name="foo",
+        package="package",
+        path=Path("examples/sushi_dbt/seeds/waiter_names.csv"),
+        column_types={
+            "id": "TEXT",
+            "name": "TEXT NOT NULL",
+        },
+        quote_columns=True,
+    )
+
+    expected_column_types = {
+        "id": exp.DataType.build("text"),
+        "name": exp.DataType.build("text"),
+    }
+
+    logger = logging.getLogger("sqlmesh.dbt.column")
+    with patch.object(logger, "warning") as mock_logger:
+        sqlmesh_seed = seed.to_sqlmesh(context)
+    assert "Ignoring unsupported constraints" in mock_logger.call_args[0][0]
+    assert sqlmesh_seed.columns_to_types == expected_column_types
+
 
 def test_seed_column_inference(tmp_path):
     seed_csv = tmp_path / "seed.csv"