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georgia-tech-db / eva / #758

04 Sep 2023 08:37PM UTC coverage: 0.0% (-78.3%) from 78.333%
#758

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hershd23
Increased underline length in at line 75 in text_summarization.rst
	modified:   docs/source/benchmarks/text_summarization.rst

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/evadb/parser/delete_statement.py
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# coding=utf-8
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# Copyright 2018-2023 EvaDB
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from evadb.expression.abstract_expression import AbstractExpression
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from evadb.parser.statement import AbstractStatement
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from evadb.parser.table_ref import TableRef
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from evadb.parser.types import StatementType
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class DeleteTableStatement(AbstractStatement):
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    """Delete Table Statement constructed after parsing the input query
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    Attributes:
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        TableRef: table reference in the delete table statement
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        _where_clause : predicate of the select query, represented as a expression tree.
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    """
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    def __init__(
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        self,
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        table_ref: TableRef,
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        where_clause: AbstractExpression = None,
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    ):
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        super().__init__(StatementType.DELETE)
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        self._table_ref = table_ref
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        self._where_clause = where_clause
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    def __str__(self) -> str:
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        delete_str = f"DELETE FROM {self._table_ref}"
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        if self._where_clause is not None:
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            delete_str += " WHERE " + str(self._where_clause)
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        return delete_str
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    @property
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    def table_ref(self):
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        return self._table_ref
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    @property
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    def where_clause(self):
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        return self._where_clause
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    def __eq__(self, other):
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        if not isinstance(other, DeleteTableStatement):
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            return False
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        return (
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            self._table_ref == other._table_ref
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            and self.where_clause == other.where_clause
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        )
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    def __hash__(self) -> int:
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        return hash((super().__hash__(), self._table_ref, self.where_clause))
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