Thank you sir, it's working. On Tuesday, February 25, 2020 at 10:52:21 PM UTC+5:30, Simon King wrote: > > SQLAlchemy overrides the & operator: > > > https://docs.sqlalchemy.org/en/13/core/sqlelement.html#sqlalchemy.sql.expression.and_ > > > You can use the "op" function to get at the postgres & operator: > > > https://docs.sqlalchemy.org/en/13/core/sqlelement.html#sqlalchemy.sql.expression.ColumnElement.op > > > Something like this: > > select([testa.c.id.op("&")(15)]) > > Hope that helps, > > Simon > > On Tue, Feb 25, 2020 at 5:02 PM Balukrishnan <balu...@gmail.com > <javascript:>> wrote: > > > > Table definition > > > > from sqlalchemy import * > > testa = Table( > > "testa", > > metadata, > > Column("id", BigInteger, primary_key=True), > > Column("str_var_a", String, nullable=True), > > Colmn("bool_var_a", Boolean, nullable=True), > > ) > > > > and I need to execute a query like. > > > > select([testa.c.id & 15]) > > > > But while executing this query getting an error > > > > Traceback (most recent call last): > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/operators.py", > > line 81, in __and__ > > return self.operate(and_, other) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 731, in operate > > return op(self.comparator, *other, **kwargs) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/operators.py", > > line 81, in __and__ > > return self.operate(and_, other) > > File "<string>", line 1, in <lambda> > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/type_api.py", > > line 67, in operate > > return o[0](self.expr, op, *(other + o[1:]), **kwargs) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/default_comparator.py", > > line 147, in _conjunction_operate > > return and_(expr, other) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 2098, in and_ > > return cls._construct(operators.and_, True_, False_, *clauses) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 2028, in _construct > > clauses = [ > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 2029, in <listcomp> > > _expression_literal_as_text(clause) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 4569, in _expression_literal_as_text > > return _literal_as_text(element) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 4592, in _literal_as_text > > return _literal_as(element, _no_text_coercion) > > File > "/Users/users_name/Projects/x_men/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", > > line 4582, in _literal_as > > raise exc.ArgumentError( > > sqlalchemy.exc.ArgumentError: SQL expression object expected, got object > of type <class 'int'> instead > > > > But in Postgres using psql command I can perform the query SELECT id & > 15 FROM testa;. Is there any support for this in sqlalchemy. > > > > -- > > SQLAlchemy - > > The Python SQL Toolkit and Object Relational Mapper > > > > http://www.sqlalchemy.org/ > > > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > > --- > > You received this message because you are subscribed to the Google > Groups "sqlalchemy" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to sqlal...@googlegroups.com <javascript:>. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/37691a3d-826a-4311-bbdb-6ba3eb67b95a%40googlegroups.com. > > >
-- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/6c5f2781-d1ca-45b1-b847-41c44377b3b8%40googlegroups.com.
