a89ccb4a-7f6e-4be4-b286-750d999fbf3a

# coding=utf-8
# Copyright 2018-2023 EvaDB
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Iterator, Union

from evadb.database import EvaDBDatabase
from evadb.executor.abstract_executor import AbstractExecutor
from evadb.executor.apply_and_merge_executor import ApplyAndMergeExecutor
from evadb.executor.create_database_executor import CreateDatabaseExecutor
from evadb.executor.create_executor import CreateExecutor
from evadb.executor.create_index_executor import CreateIndexExecutor
from evadb.executor.create_udf_executor import CreateUDFExecutor
from evadb.executor.delete_executor import DeleteExecutor
from evadb.executor.drop_object_executor import DropObjectExecutor
from evadb.executor.exchange_executor import ExchangeExecutor
from evadb.executor.executor_utils import ExecutorError
from evadb.executor.explain_executor import ExplainExecutor
from evadb.executor.function_scan_executor import FunctionScanExecutor
from evadb.executor.groupby_executor import GroupByExecutor
from evadb.executor.hash_join_executor import HashJoinExecutor
from evadb.executor.insert_executor import InsertExecutor
from evadb.executor.join_build_executor import BuildJoinExecutor
from evadb.executor.lateral_join_executor import LateralJoinExecutor
from evadb.executor.limit_executor import LimitExecutor
from evadb.executor.load_executor import LoadDataExecutor
from evadb.executor.nested_loop_join_executor import NestedLoopJoinExecutor
from evadb.executor.orderby_executor import OrderByExecutor
from evadb.executor.pp_executor import PPExecutor
from evadb.executor.predicate_executor import PredicateExecutor
from evadb.executor.project_executor import ProjectExecutor
from evadb.executor.rename_executor import RenameExecutor
from evadb.executor.sample_executor import SampleExecutor
from evadb.executor.seq_scan_executor import SequentialScanExecutor
from evadb.executor.show_info_executor import ShowInfoExecutor
from evadb.executor.storage_executor import StorageExecutor
from evadb.executor.union_executor import UnionExecutor
from evadb.executor.vector_index_scan_executor import VectorIndexScanExecutor
from evadb.models.storage.batch import Batch
from evadb.parser.create_statement import CreateDatabaseStatement
from evadb.parser.statement import AbstractStatement
from evadb.plan_nodes.abstract_plan import AbstractPlan
from evadb.plan_nodes.types import PlanOprType
from evadb.utils.logging_manager import logger


class PlanExecutor:
    """
    This is an interface between plan tree and execution tree.
    We traverse the plan tree and build execution tree from it

    Arguments:
        plan (AbstractPlan): Physical plan tree which needs to be executed
        evadb (EvaDBDatabase): database to execute the query on
    """

    def __init__(self, evadb: EvaDBDatabase, plan: AbstractPlan):
        self._db = evadb
        self._plan = plan

    def _build_execution_tree(
        self, plan: Union[AbstractPlan, AbstractStatement]
    ) -> AbstractExecutor:
        """build the execution tree from plan tree

        Arguments:
            plan {AbstractPlan} -- Input Plan tree

        Returns:
            AbstractExecutor -- Compiled Execution tree
        """
        root = None
        if plan is None:
            return root

        # First handle cases when the plan is actually a parser statement
        if isinstance(plan, CreateDatabaseStatement):
            return CreateDatabaseExecutor(db=self._db, node=plan)

        # Get plan node type
        plan_opr_type = plan.opr_type

        if plan_opr_type == PlanOprType.SEQUENTIAL_SCAN:
            executor_node = SequentialScanExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.UNION:
            executor_node = UnionExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.STORAGE_PLAN:
            executor_node = StorageExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.PP_FILTER:
            executor_node = PPExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.CREATE:
            executor_node = CreateExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.RENAME:
            executor_node = RenameExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.DROP_OBJECT:
            executor_node = DropObjectExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.INSERT:
            executor_node = InsertExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.CREATE_UDF:
            executor_node = CreateUDFExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.LOAD_DATA:
            executor_node = LoadDataExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.GROUP_BY:
            executor_node = GroupByExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.ORDER_BY:
            executor_node = OrderByExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.LIMIT:
            executor_node = LimitExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.SAMPLE:
            executor_node = SampleExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.NESTED_LOOP_JOIN:
            executor_node = NestedLoopJoinExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.LATERAL_JOIN:
            logger.warn(
                "LateralJoin Executor should not be part of the execution plan."
                "Please raise an issue with the current query. Thanks!"
            )
            executor_node = LateralJoinExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.HASH_JOIN:
            executor_node = HashJoinExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.HASH_BUILD:
            executor_node = BuildJoinExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.FUNCTION_SCAN:
            executor_node = FunctionScanExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.EXCHANGE:
            executor_node = ExchangeExecutor(db=self._db, node=plan)
            inner_executor = self._build_execution_tree(plan.inner_plan)
            executor_node.build_inner_executor(inner_executor)
        elif plan_opr_type == PlanOprType.PROJECT:
            executor_node = ProjectExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.PREDICATE_FILTER:
            executor_node = PredicateExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.SHOW_INFO:
            executor_node = ShowInfoExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.EXPLAIN:
            executor_node = ExplainExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.CREATE_INDEX:
            executor_node = CreateIndexExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.APPLY_AND_MERGE:
            executor_node = ApplyAndMergeExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.VECTOR_INDEX_SCAN:
            executor_node = VectorIndexScanExecutor(db=self._db, node=plan)
        elif plan_opr_type == PlanOprType.DELETE:
            executor_node = DeleteExecutor(db=self._db, node=plan)

        # EXPLAIN does not need to build execution tree for its children
        if plan_opr_type != PlanOprType.EXPLAIN:
            # Build Executor Tree for children
            for children in plan.children:
                executor_node.append_child(self._build_execution_tree(children))

        return executor_node

    def execute_plan(
        self,
        do_not_raise_exceptions: bool = False,
        do_not_print_exceptions: bool = False,
    ) -> Iterator[Batch]:
        """execute the plan tree"""
        try:
            execution_tree = self._build_execution_tree(self._plan)
            output = execution_tree.exec()
            if output is not None:
                yield from output
        except Exception as e:
            if do_not_raise_exceptions is False:
                if do_not_print_exceptions is False:
                    logger.exception(str(e))
                raise ExecutorError(e)

1	# coding=utf-8
2	# Copyright 2018-2023 EvaDB
3	#
4	# Licensed under the Apache License, Version 2.0 (the "License");
5	# you may not use this file except in compliance with the License.
6	# You may obtain a copy of the License at
7	#
8	# http://www.apache.org/licenses/LICENSE-2.0
9	#
10	# Unless required by applicable law or agreed to in writing, software
11	# distributed under the License is distributed on an "AS IS" BASIS,
12	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	# See the License for the specific language governing permissions and
14	# limitations under the License.
15	from typing import Iterator, Union	1✔
16
17	from evadb.database import EvaDBDatabase	1✔
18	from evadb.executor.abstract_executor import AbstractExecutor	1✔
19	from evadb.executor.apply_and_merge_executor import ApplyAndMergeExecutor	1✔
20	from evadb.executor.create_database_executor import CreateDatabaseExecutor	1✔
21	from evadb.executor.create_executor import CreateExecutor	1✔
22	from evadb.executor.create_index_executor import CreateIndexExecutor	1✔
23	from evadb.executor.create_udf_executor import CreateUDFExecutor	1✔
24	from evadb.executor.delete_executor import DeleteExecutor	1✔
25	from evadb.executor.drop_object_executor import DropObjectExecutor	1✔
26	from evadb.executor.exchange_executor import ExchangeExecutor	1✔
27	from evadb.executor.executor_utils import ExecutorError	1✔
28	from evadb.executor.explain_executor import ExplainExecutor	1✔
29	from evadb.executor.function_scan_executor import FunctionScanExecutor	1✔
30	from evadb.executor.groupby_executor import GroupByExecutor	1✔
31	from evadb.executor.hash_join_executor import HashJoinExecutor	1✔
32	from evadb.executor.insert_executor import InsertExecutor	1✔
33	from evadb.executor.join_build_executor import BuildJoinExecutor	1✔
34	from evadb.executor.lateral_join_executor import LateralJoinExecutor	1✔
35	from evadb.executor.limit_executor import LimitExecutor	1✔
36	from evadb.executor.load_executor import LoadDataExecutor	1✔
37	from evadb.executor.nested_loop_join_executor import NestedLoopJoinExecutor	1✔
38	from evadb.executor.orderby_executor import OrderByExecutor	1✔
39	from evadb.executor.pp_executor import PPExecutor	1✔
40	from evadb.executor.predicate_executor import PredicateExecutor	1✔
41	from evadb.executor.project_executor import ProjectExecutor	1✔
42	from evadb.executor.rename_executor import RenameExecutor	1✔
43	from evadb.executor.sample_executor import SampleExecutor	1✔
44	from evadb.executor.seq_scan_executor import SequentialScanExecutor	1✔
45	from evadb.executor.show_info_executor import ShowInfoExecutor	1✔
46	from evadb.executor.storage_executor import StorageExecutor	1✔
47	from evadb.executor.union_executor import UnionExecutor	1✔
48	from evadb.executor.vector_index_scan_executor import VectorIndexScanExecutor	1✔
49	from evadb.models.storage.batch import Batch	1✔
50	from evadb.parser.create_statement import CreateDatabaseStatement	1✔
51	from evadb.parser.statement import AbstractStatement	1✔
52	from evadb.plan_nodes.abstract_plan import AbstractPlan	1✔
53	from evadb.plan_nodes.types import PlanOprType	1✔
54	from evadb.utils.logging_manager import logger	1✔
55
56
57	class PlanExecutor:	1✔
58	"""
59	This is an interface between plan tree and execution tree.
60	We traverse the plan tree and build execution tree from it
61
62	Arguments:
63	plan (AbstractPlan): Physical plan tree which needs to be executed
64	evadb (EvaDBDatabase): database to execute the query on
65	"""
66
67	def __init__(self, evadb: EvaDBDatabase, plan: AbstractPlan):	1✔
68	self._db = evadb	1✔
69	self._plan = plan	1✔
70
71	def _build_execution_tree(	1✔
72	self, plan: Union[AbstractPlan, AbstractStatement]
73	) -> AbstractExecutor:
74	"""build the execution tree from plan tree
75
76	Arguments:
77	plan {AbstractPlan} -- Input Plan tree
78
79	Returns:
80	AbstractExecutor -- Compiled Execution tree
81	"""
82	root = None	1✔
83	if plan is None:	1✔
84	return root	×
85
86	# First handle cases when the plan is actually a parser statement
87	if isinstance(plan, CreateDatabaseStatement):	1✔
88	return CreateDatabaseExecutor(db=self._db, node=plan)	1✔
89
90	# Get plan node type
91	plan_opr_type = plan.opr_type	1✔
92
93	if plan_opr_type == PlanOprType.SEQUENTIAL_SCAN:	1✔
94	executor_node = SequentialScanExecutor(db=self._db, node=plan)	1✔
95	elif plan_opr_type == PlanOprType.UNION:	1✔
96	executor_node = UnionExecutor(db=self._db, node=plan)	1✔
97	elif plan_opr_type == PlanOprType.STORAGE_PLAN:	1✔
98	executor_node = StorageExecutor(db=self._db, node=plan)	1✔
99	elif plan_opr_type == PlanOprType.PP_FILTER:	1✔
100	executor_node = PPExecutor(db=self._db, node=plan)	1✔
101	elif plan_opr_type == PlanOprType.CREATE:	1✔
102	executor_node = CreateExecutor(db=self._db, node=plan)	1✔
103	elif plan_opr_type == PlanOprType.RENAME:	1✔
104	executor_node = RenameExecutor(db=self._db, node=plan)	1✔
105	elif plan_opr_type == PlanOprType.DROP_OBJECT:	1✔
106	executor_node = DropObjectExecutor(db=self._db, node=plan)	1✔
107	elif plan_opr_type == PlanOprType.INSERT:	1✔
108	executor_node = InsertExecutor(db=self._db, node=plan)	1✔
109	elif plan_opr_type == PlanOprType.CREATE_UDF:	1✔
110	executor_node = CreateUDFExecutor(db=self._db, node=plan)	1✔
111	elif plan_opr_type == PlanOprType.LOAD_DATA:	1✔
112	executor_node = LoadDataExecutor(db=self._db, node=plan)	1✔
113	elif plan_opr_type == PlanOprType.GROUP_BY:	1✔
114	executor_node = GroupByExecutor(db=self._db, node=plan)	1✔
115	elif plan_opr_type == PlanOprType.ORDER_BY:	1✔
116	executor_node = OrderByExecutor(db=self._db, node=plan)	1✔
117	elif plan_opr_type == PlanOprType.LIMIT:	1✔
118	executor_node = LimitExecutor(db=self._db, node=plan)	1✔
119	elif plan_opr_type == PlanOprType.SAMPLE:	1✔
120	executor_node = SampleExecutor(db=self._db, node=plan)	×
121	elif plan_opr_type == PlanOprType.NESTED_LOOP_JOIN:	1✔
122	executor_node = NestedLoopJoinExecutor(db=self._db, node=plan)	1✔
123	elif plan_opr_type == PlanOprType.LATERAL_JOIN:	1✔
124	logger.warn(
125	"LateralJoin Executor should not be part of the execution plan."
126	"Please raise an issue with the current query. Thanks!"
127	)
128	executor_node = LateralJoinExecutor(db=self._db, node=plan)	×
129	elif plan_opr_type == PlanOprType.HASH_JOIN:	1✔
130	executor_node = HashJoinExecutor(db=self._db, node=plan)	1✔
131	elif plan_opr_type == PlanOprType.HASH_BUILD:	1✔
132	executor_node = BuildJoinExecutor(db=self._db, node=plan)	1✔
133	elif plan_opr_type == PlanOprType.FUNCTION_SCAN:	1✔
134	executor_node = FunctionScanExecutor(db=self._db, node=plan)	×
135	elif plan_opr_type == PlanOprType.EXCHANGE:	1✔
136	executor_node = ExchangeExecutor(db=self._db, node=plan)	×
137	inner_executor = self._build_execution_tree(plan.inner_plan)	×
138	executor_node.build_inner_executor(inner_executor)	×
139	elif plan_opr_type == PlanOprType.PROJECT:	1✔
140	executor_node = ProjectExecutor(db=self._db, node=plan)	1✔
141	elif plan_opr_type == PlanOprType.PREDICATE_FILTER:	1✔
142	executor_node = PredicateExecutor(db=self._db, node=plan)	1✔
143	elif plan_opr_type == PlanOprType.SHOW_INFO:	1✔
144	executor_node = ShowInfoExecutor(db=self._db, node=plan)	1✔
145	elif plan_opr_type == PlanOprType.EXPLAIN:	1✔
146	executor_node = ExplainExecutor(db=self._db, node=plan)	1✔
147	elif plan_opr_type == PlanOprType.CREATE_INDEX:	1✔
148	executor_node = CreateIndexExecutor(db=self._db, node=plan)	1✔
149	elif plan_opr_type == PlanOprType.APPLY_AND_MERGE:	1✔
150	executor_node = ApplyAndMergeExecutor(db=self._db, node=plan)	1✔
151	elif plan_opr_type == PlanOprType.VECTOR_INDEX_SCAN:	1✔
152	executor_node = VectorIndexScanExecutor(db=self._db, node=plan)	1✔
153	elif plan_opr_type == PlanOprType.DELETE:	1✔
154	executor_node = DeleteExecutor(db=self._db, node=plan)	1✔
155
156	# EXPLAIN does not need to build execution tree for its children
157	if plan_opr_type != PlanOprType.EXPLAIN:	1✔
158	# Build Executor Tree for children
159	for children in plan.children:	1✔
160	executor_node.append_child(self._build_execution_tree(children))	1✔
161
162	return executor_node	1✔
163
164	def execute_plan(
165	self,
166	do_not_raise_exceptions: bool = False,
167	do_not_print_exceptions: bool = False,
168	) -> Iterator[Batch]:
169	"""execute the plan tree"""
170	try:	1✔
171	execution_tree = self._build_execution_tree(self._plan)	1✔
172	output = execution_tree.exec()	1✔
173	if output is not None:	1✔
174	yield from output	1✔
175	except Exception as e:
176	if do_not_raise_exceptions is False:
177	if do_not_print_exceptions is False:
178	logger.exception(str(e))
179	raise ExecutorError(e)

georgia-tech-db / eva / a89ccb4a-7f6e-4be4-b286-750d999fbf3a

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