#832

Committed 12 Oct 2023 08:31AM UTC coverage: 0.0% (-68.5%) from 68.493%

Build # #832

Build Type

push

circle-ci

Committed by

xzdandy

Commit Message

Minor

Run Details

0 of 12331 relevant lines covered (0.0%)

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/evadb/executor/join_build_executor.py

# 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

from evadb.database import EvaDBDatabase
from evadb.executor.abstract_executor import AbstractExecutor
from evadb.models.storage.batch import Batch
from evadb.plan_nodes.hash_join_build_plan import HashJoinBuildPlan


class BuildJoinExecutor(AbstractExecutor):
    def __init__(self, db: EvaDBDatabase, node: HashJoinBuildPlan):
        super().__init__(db, node)
        self.predicate = None  # node.join_predicate
        self.join_type = node.join_type
        self.build_keys = node.build_keys

    def exec(self, *args, **kwargs) -> Iterator[Batch]:
        child_executor = self.children[0]
        # build in memory hash table and pass to the probe phase
        # Assumption the hash table fits in memory
        # Todo: Implement a partition based hash join (grace hash join)
        cumm_batches = [batch for batch in child_executor.exec() if not batch.empty()]
        cumm_batches = Batch.concat(cumm_batches)
        hash_keys = [key.col_alias for key in self.build_keys]
        cumm_batches.reassign_indices_to_hash(hash_keys)
        yield cumm_batches

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	×
16
17	from evadb.database import EvaDBDatabase	×
18	from evadb.executor.abstract_executor import AbstractExecutor	×
19	from evadb.models.storage.batch import Batch	×
20	from evadb.plan_nodes.hash_join_build_plan import HashJoinBuildPlan	×
21
22
23	class BuildJoinExecutor(AbstractExecutor):	×
24	def __init__(self, db: EvaDBDatabase, node: HashJoinBuildPlan):	×
25	super().__init__(db, node)	×
26	self.predicate = None # node.join_predicate	×
27	self.join_type = node.join_type	×
28	self.build_keys = node.build_keys	×
29
30	def exec(self, args, *kwargs) -> Iterator[Batch]:	×
31	child_executor = self.children[0]	×
32	# build in memory hash table and pass to the probe phase
33	# Assumption the hash table fits in memory
34	# Todo: Implement a partition based hash join (grace hash join)
35	cumm_batches = [batch for batch in child_executor.exec() if not batch.empty()]	×
36	cumm_batches = Batch.concat(cumm_batches)	×
37	hash_keys = [key.col_alias for key in self.build_keys]	×
38	cumm_batches.reassign_indices_to_hash(hash_keys)	×
39	yield cumm_batches	×

georgia-tech-db / eva / #832

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