NpgsqlParameterBasedSqlProcessor.cs

namespace Npgsql.EntityFrameworkCore.PostgreSQL.Query.Internal;

/// <summary>
///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
///     the same compatibility standards as public APIs. It may be changed or removed without notice in
///     any release. You should only use it directly in your code with extreme caution and knowing that
///     doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public class NpgsqlParameterBasedSqlProcessor : RelationalParameterBasedSqlProcessor
{
    /// <summary>
    ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
    ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
    ///     any release. You should only use it directly in your code with extreme caution and knowing that
    ///     doing so can result in application failures when updating to a new Entity Framework Core release.
    /// </summary>
    public NpgsqlParameterBasedSqlProcessor(
        RelationalParameterBasedSqlProcessorDependencies dependencies,
        RelationalParameterBasedSqlProcessorParameters parameters)
        : base(dependencies, parameters)
    {
    }

    /// <summary>
    ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
    ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
    ///     any release. You should only use it directly in your code with extreme caution and knowing that
    ///     doing so can result in application failures when updating to a new Entity Framework Core release.
    /// </summary>
    public override Expression Process(Expression queryExpression, CacheSafeParameterFacade parametersFacade)
    {
        queryExpression = base.Process(queryExpression, parametersFacade);

        queryExpression = new NpgsqlDeleteConvertingExpressionVisitor().Process(queryExpression);

        return queryExpression;
    }

    /// <inheritdoc />
    protected override Expression ProcessSqlNullability(Expression selectExpression, CacheSafeParameterFacade parametersFacade)
        => new NpgsqlSqlNullabilityProcessor(Dependencies, Parameters).Process(selectExpression, parametersFacade);
}