fix(tests): prevent schema collisions between integration test params (#6072)

Signed-off-by: cookieark <aishwary.kantode@gmail.com>
Co-authored-by: cookieark <aishwary.kantode@gmail.com>

Author: cookieark7

tests/core/engine_adapter/integration/__init__.py

@@ -1,7 +1,9 @@
 from __future__ import annotations
 
+import hashlib
 import os
 import pathlib
+import secrets
 import sys
 import typing as t
 import time
@@ -20,7 +22,7 @@
 from sqlmesh.core.engine_adapter import SparkEngineAdapter, TrinoEngineAdapter, AthenaEngineAdapter
 from sqlmesh.core.engine_adapter.shared import DataObject
 from sqlmesh.core.model.definition import SqlModel, load_sql_based_model
-from sqlmesh.utils import random_id
+from sqlmesh.utils import ALPHANUMERIC, random_id
 from sqlmesh.utils.date import to_ds
 from sqlmesh.utils.pydantic import PydanticModel
 from tests.utils.pandas import compare_dataframes
@@ -205,7 +207,13 @@ def __init__(
         self.mark = mark
         self.gateway = gateway
         self._columns_to_types = columns_to_types
-        self.test_id = random_id(short=True)
+        # The id is appended to schema names, so it has to keep concurrent test params apart
+        # while staying short: temp table names built from these schemas are already close to
+        # Postgres's 63 character identifier limit. A tag derived from the param guarantees two
+        # params never share a schema, and the random part separates concurrent runs and retries.
+        param_tag = hashlib.sha1(mark.encode()).hexdigest()[:3]
+        random_part = "".join(secrets.choice(ALPHANUMERIC) for _ in range(5))
+        self.test_id = f"{param_tag}{random_part}"
         self._context: t.Optional[Context] = None
         self.is_remote = is_remote
         self._schemas: t.List[