// PostgreSQL COUNT() always returns bigint, so we need to downcast to int
public override SqlExpression TranslateCount(SqlExpression sqlExpression)
{
Check.NotNull(sqlExpression, nameof(sqlExpression));
return(_sqlExpressionFactory.Convert(
_sqlExpressionFactory.ApplyDefaultTypeMapping(
_sqlExpressionFactory.Function(
"COUNT",
new[] { sqlExpression },
nullable: false,
argumentsPropagateNullability: FalseArrays[1],
typeof(long))),
typeof(int), _typeMappingSource.FindMapping(typeof(int))));
}
// PostgreSQL COUNT() always returns bigint, so we need to downcast to int
// TODO: Translate Count with predicate for GroupBy (see base implementation)
public override SqlExpression TranslateCount(Expression expression = null)
{
if (expression != null)
{
// TODO: Translate Count with predicate for GroupBy
return(null);
}
return(_sqlExpressionFactory.Convert(
_sqlExpressionFactory.ApplyDefaultTypeMapping(
_sqlExpressionFactory.Function("COUNT", new[] { _sqlExpressionFactory.Fragment("*") }, typeof(long))),
typeof(int), _sqlExpressionFactory.FindMapping(typeof(int))));
}
// PostgreSQL COUNT() always returns bigint, so we need to downcast to int
// TODO: Translate Count with predicate for GroupBy (see base implementation)
public override SqlExpression TranslateCount(Expression expression = null)
=> _sqlExpressionFactory.Convert(
_sqlExpressionFactory.ApplyDefaultTypeMapping(
_sqlExpressionFactory.Function("COUNT", new[] { _sqlExpressionFactory.Fragment("*") }, typeof(long))),
typeof(int), _sqlExpressionFactory.FindMapping(typeof(int)));
