Added collection of used tables from Python notebooks and files and SQL queries

src/databricks/labs/ucx/install.py

@@ -75,6 +75,7 @@
 from databricks.labs.ucx.installer.workflows import WorkflowsDeployment
 from databricks.labs.ucx.recon.migration_recon import ReconResult
 from databricks.labs.ucx.runtime import Workflows
+from databricks.labs.ucx.source_code.base import UsedTable
 from databricks.labs.ucx.source_code.directfs_access import DirectFsAccess
 from databricks.labs.ucx.source_code.jobs import JobProblem
 from databricks.labs.ucx.source_code.queries import QueryProblem
@@ -124,6 +125,8 @@ def deploy_schema(sql_backend: SqlBackend, inventory_schema: str):
             functools.partial(table, "recon_results", ReconResult),
             functools.partial(table, "directfs_in_paths", DirectFsAccess),
             functools.partial(table, "directfs_in_queries", DirectFsAccess),
+            functools.partial(table, "used_tables_in_paths", UsedTable),
+            functools.partial(table, "used_tables_in_queries", UsedTable),
         ],
     )
     deployer.deploy_view("grant_detail", "queries/views/grant_detail.sql")
@@ -133,6 +136,7 @@ def deploy_schema(sql_backend: SqlBackend, inventory_schema: str):
     deployer.deploy_view("code_patterns", "queries/views/code_patterns.sql")
     deployer.deploy_view("reconciliation_results", "queries/views/reconciliation_results.sql")
     deployer.deploy_view("directfs", "queries/views/directfs.sql")
+    deployer.deploy_view("used_tables", "queries/views/used_tables.sql")
 
 
 def extract_major_minor(version_string):

src/databricks/labs/ucx/queries/views/used_tables.sql

@@ -0,0 +1,25 @@
+SELECT
+    catalog_name,
+    schema_name,
+    table_name,
+    is_read,
+    is_write,
+    source_id,
+    source_timestamp,
+    source_lineage,
+    assessment_start_timestamp,
+    assessment_end_timestamp
+FROM $inventory.used_tables_in_paths
+UNION ALL
+SELECT
+    catalog_name,
+    schema_name,
+    table_name,
+    is_read,
+    is_write,
+    source_id,
+    source_timestamp,
+    source_lineage,
+    assessment_start_timestamp,
+    assessment_end_timestamp
+FROM $inventory.used_tables_in_queries

src/databricks/labs/ucx/source_code/base.py

@@ -4,10 +4,13 @@
 import dataclasses
 import locale
 import logging
+import sys
 from abc import abstractmethod, ABC
 from collections.abc import Iterable
-from dataclasses import dataclass
+from dataclasses import dataclass, field
+from datetime import datetime
 from pathlib import Path
+from typing import Any
 
 from astroid import AstroidSyntaxError, NodeNG  # type: ignore
 from sqlglot import Expression, parse as parse_sql, ParseError as SqlParseError
@@ -19,6 +22,11 @@
 
 from databricks.labs.ucx.source_code.python.python_ast import Tree
 
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+
 # Code mapping between LSP, PyLint, and our own diagnostics:
 # | LSP                       | PyLint     | Our            |
 # |---------------------------|------------|----------------|
@@ -174,6 +182,140 @@ def name(self) -> str: ...
     def apply(self, code: str) -> str: ...
 
 
+@dataclass
+class LineageAtom:
+
+    object_type: str
+    object_id: str
+    other: dict[str, str] | None = None
+
+
+@dataclass
+class SourceInfo:
+
+    @classmethod
+    def from_dict(cls, data: dict[str, Any]) -> Self:
+        source_lineage = data.get("source_lineage", None)
+        if isinstance(source_lineage, list) and len(source_lineage) > 0 and isinstance(source_lineage[0], dict):
+            lineage_atoms = [LineageAtom(**lineage) for lineage in source_lineage]
+            data["source_lineage"] = lineage_atoms
+        return cls(**data)
+
+    UNKNOWN = "unknown"
+
+    source_id: str = UNKNOWN
+    source_timestamp: datetime = datetime.fromtimestamp(0)
+    source_lineage: list[LineageAtom] = field(default_factory=list)
+    assessment_start_timestamp: datetime = datetime.fromtimestamp(0)
+    assessment_end_timestamp: datetime = datetime.fromtimestamp(0)
+
+    def replace_source(
+        self,
+        source_id: str | None = None,
+        source_lineage: list[LineageAtom] | None = None,
+        source_timestamp: datetime | None = None,
+    ):
+        return dataclasses.replace(
+            self,
+            source_id=source_id or self.source_id,
+            source_timestamp=source_timestamp or self.source_timestamp,
+            source_lineage=source_lineage or self.source_lineage,
+        )
+
+    def replace_assessment_infos(
+        self, assessment_start: datetime | None = None, assessment_end: datetime | None = None
+    ):
+        return dataclasses.replace(
+            self,
+            assessment_start_timestamp=assessment_start or self.assessment_start_timestamp,
+            assessment_end_timestamp=assessment_end or self.assessment_end_timestamp,
+        )
+
+
+@dataclass
+class UsedTable(SourceInfo):
+
+    @classmethod
+    def parse(cls, value: str, default_schema: str) -> UsedTable:
+        parts = value.split(".")
+        if len(parts) >= 3:
+            catalog_name = parts.pop(0)
+        else:
+            catalog_name = "hive_metastore"
+        if len(parts) >= 2:
+            schema_name = parts.pop(0)
+        else:
+            schema_name = default_schema
+        return UsedTable(catalog_name=catalog_name, schema_name=schema_name, table_name=parts[0])
+
+    catalog_name: str = SourceInfo.UNKNOWN
+    schema_name: str = SourceInfo.UNKNOWN
+    table_name: str = SourceInfo.UNKNOWN
+    is_read: bool = True
+    is_write: bool = False
+
+
+class TableCollector(ABC):
+
+    @abstractmethod
+    def collect_tables(self, source_code: str) -> Iterable[UsedTable]: ...
+
+
+@dataclass
+class TableInfoNode:
+    table: UsedTable
+    node: NodeNG
+
+
+class TablePyCollector(TableCollector, ABC):
+
+    def collect_tables(self, source_code: str):
+        tree = Tree.normalize_and_parse(source_code)
+        for table_node in self.collect_tables_from_tree(tree):
+            yield table_node.table
+
+    @abstractmethod
+    def collect_tables_from_tree(self, tree: Tree) -> Iterable[TableInfoNode]: ...
+
+
+class TableSqlCollector(TableCollector, ABC): ...
+
+
+@dataclass
+class DirectFsAccess(SourceInfo):
+    """A record describing a Direct File System Access"""
+
+    path: str = SourceInfo.UNKNOWN
+    is_read: bool = False
+    is_write: bool = False
+
+
+@dataclass
+class DirectFsAccessNode:
+    dfsa: DirectFsAccess
+    node: NodeNG
+
+
+class DfsaCollector(ABC):
+
+    @abstractmethod
+    def collect_dfsas(self, source_code: str) -> Iterable[DirectFsAccess]: ...
+
+
+class DfsaPyCollector(DfsaCollector, ABC):
+
+    def collect_dfsas(self, source_code: str) -> Iterable[DirectFsAccess]:
+        tree = Tree.normalize_and_parse(source_code)
+        for dfsa_node in self.collect_dfsas_from_tree(tree):
+            yield dfsa_node.dfsa
+
+    @abstractmethod
+    def collect_dfsas_from_tree(self, tree: Tree) -> Iterable[DirectFsAccessNode]: ...
+
+
+class DfsaSqlCollector(DfsaCollector, ABC): ...
+
+
 # The default schema to use when the schema is not specified in a table reference
 # See: https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-qry-select-usedb.html
 DEFAULT_CATALOG = 'hive_metastore'
@@ -221,20 +363,42 @@ def parse_security_mode(mode_str: str | None) -> compute.DataSecurityMode | None
             return None
 
 
-class SqlSequentialLinter(SqlLinter):
+class SqlSequentialLinter(SqlLinter, DfsaCollector, TableCollector):
 
-    def __init__(self, linters: list[SqlLinter]):
+    def __init__(
+        self,
+        linters: list[SqlLinter],
+        dfsa_collectors: list[DfsaSqlCollector],
+        table_collectors: list[TableSqlCollector],
+    ):
         self._linters = linters
+        self._dfsa_collectors = dfsa_collectors
+        self._table_collectors = table_collectors
 
     def lint_expression(self, expression: Expression) -> Iterable[Advice]:
         for linter in self._linters:
             yield from linter.lint_expression(expression)
 
+    def collect_dfsas(self, source_code: str) -> Iterable[DirectFsAccess]:
+        for collector in self._dfsa_collectors:
+            yield from collector.collect_dfsas(source_code)
+
+    def collect_tables(self, source_code: str) -> Iterable[UsedTable]:
+        for collector in self._table_collectors:
+            yield from collector.collect_tables(source_code)
 
-class PythonSequentialLinter(Linter):
 
-    def __init__(self, linters: list[PythonLinter]):
+class PythonSequentialLinter(Linter, DfsaCollector, TableCollector):
+
+    def __init__(
+        self,
+        linters: list[PythonLinter],
+        dfsa_collectors: list[DfsaPyCollector],
+        table_collectors: list[TablePyCollector],
+    ):
         self._linters = linters
+        self._dfsa_collectors = dfsa_collectors
+        self._table_collectors = table_collectors
         self._tree: Tree | None = None
 
     def lint(self, code: str) -> Iterable[Advice]:
@@ -271,6 +435,30 @@ def process_child_cell(self, code: str):
             # error already reported when linting enclosing notebook
             logger.warning(f"Failed to parse Python cell: {code}", exc_info=e)
 
+    def collect_dfsas(self, source_code: str) -> Iterable[DirectFsAccess]:
+        try:
+            tree = self._parse_and_append(source_code)
+            for dfsa_node in self.collect_dfsas_from_tree(tree):
+                yield dfsa_node.dfsa
+        except AstroidSyntaxError as e:
+            logger.warning('syntax-error', exc_info=e)
+
+    def collect_dfsas_from_tree(self, tree: Tree) -> Iterable[DirectFsAccessNode]:
+        for collector in self._dfsa_collectors:
+            yield from collector.collect_dfsas_from_tree(tree)
+
+    def collect_tables(self, source_code: str) -> Iterable[UsedTable]:
+        try:
+            tree = self._parse_and_append(source_code)
+            for table_node in self.collect_tables_from_tree(tree):
+                yield table_node.table
+        except AstroidSyntaxError as e:
+            logger.warning('syntax-error', exc_info=e)
+
+    def collect_tables_from_tree(self, tree: Tree) -> Iterable[TableInfoNode]:
+        for collector in self._table_collectors:
+            yield from collector.collect_tables_from_tree(tree)
+
     def _make_tree(self) -> Tree:
         if self._tree is None:
             self._tree = Tree.new_module()

src/databricks/labs/ucx/source_code/directfs_access.py

@@ -1,82 +1,18 @@
 from __future__ import annotations
 
-import dataclasses
 import logging
-import sys
 from collections.abc import Sequence, Iterable
-from dataclasses import dataclass, field
-from datetime import datetime
-from typing import Any
 
 from databricks.labs.ucx.framework.crawlers import CrawlerBase
 from databricks.labs.lsql.backends import SqlBackend
 from databricks.sdk.errors import DatabricksError
 
 from databricks.labs.ucx.framework.utils import escape_sql_identifier
-
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
+from databricks.labs.ucx.source_code.base import DirectFsAccess
 
 logger = logging.getLogger(__name__)
 
 
-@dataclass
-class LineageAtom:
-
-    object_type: str
-    object_id: str
-    other: dict[str, str] | None = None
-
-
-@dataclass
-class DirectFsAccess:
-    """A record describing a Direct File System Access"""
-
-    @classmethod
-    def from_dict(cls, data: dict[str, Any]) -> Self:
-        source_lineage = data.get("source_lineage", None)
-        if isinstance(source_lineage, list) and len(source_lineage) > 0 and isinstance(source_lineage[0], dict):
-            lineage_atoms = [LineageAtom(**lineage) for lineage in source_lineage]
-            data["source_lineage"] = lineage_atoms
-        return cls(**data)
-
-    UNKNOWN = "unknown"
-
-    path: str
-    is_read: bool
-    is_write: bool
-    source_id: str = UNKNOWN
-    source_timestamp: datetime = datetime.fromtimestamp(0)
-    source_lineage: list[LineageAtom] = field(default_factory=list)
-    assessment_start_timestamp: datetime = datetime.fromtimestamp(0)
-    assessment_end_timestamp: datetime = datetime.fromtimestamp(0)
-
-    def replace_source(
-        self,
-        source_id: str | None = None,
-        source_lineage: list[LineageAtom] | None = None,
-        source_timestamp: datetime | None = None,
-    ):
-        return dataclasses.replace(
-            self,
-            source_id=source_id or self.source_id,
-            source_timestamp=source_timestamp or self.source_timestamp,
-            source_lineage=source_lineage or self.source_lineage,
-        )
-
-    def replace_assessment_infos(
-        self, assessment_start: datetime | None = None, assessment_end: datetime | None = None
-    ):
-        return dataclasses.replace(
-            self,
-            assessment_start_timestamp=assessment_start or self.assessment_start_timestamp,
-            assessment_end_timestamp=assessment_end or self.assessment_end_timestamp,
-        )
-
-
 class DirectFsAccessCrawler(CrawlerBase[DirectFsAccess]):
 
     @classmethod

src/databricks/labs/ucx/source_code/graph.py

@@ -12,8 +12,7 @@
 from astroid import (  # type: ignore
     NodeNG,
 )
-from databricks.labs.ucx.source_code.base import Advisory, CurrentSessionState, is_a_notebook
-from databricks.labs.ucx.source_code.directfs_access import LineageAtom
+from databricks.labs.ucx.source_code.base import Advisory, CurrentSessionState, is_a_notebook, LineageAtom
 from databricks.labs.ucx.source_code.python.python_ast import Tree
 from databricks.labs.ucx.source_code.path_lookup import PathLookup