Class NpgsqlMathTranslator

Namespace

Npgsql.EntityFrameworkCore.PostgreSQL.Query.ExpressionTranslators.Internal

Assembly

Npgsql.EntityFrameworkCore.PostgreSQL.dll

Provides translation services for static Math methods..

public class NpgsqlMathTranslator : IMethodCallTranslator

Inheritance

object

NpgsqlMathTranslator

Implements

IMethodCallTranslator

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

See:

• https://www.postgresql.org/docs/current/static/functions-math.html
• https://www.postgresql.org/docs/current/static/functions-conditional.html#FUNCTIONS-GREATEST-LEAST

Constructors

NpgsqlMathTranslator(IRelationalTypeMappingSource, ISqlExpressionFactory, IModel)

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.

public NpgsqlMathTranslator(IRelationalTypeMappingSource typeMappingSource, ISqlExpressionFactory sqlExpressionFactory, IModel model)

Parameters

typeMappingSource IRelationalTypeMappingSource

sqlExpressionFactory ISqlExpressionFactory

model IModel

Methods

Translate(SqlExpression?, MethodInfo, IReadOnlyList<SqlExpression>, IDiagnosticsLogger<Query>)

Translates a LINQ MethodCallExpression to a SQL equivalent.

public virtual SqlExpression? Translate(SqlExpression? instance, MethodInfo method, IReadOnlyList<SqlExpression> arguments, IDiagnosticsLogger<DbLoggerCategory.Query> logger)

Parameters

instance SqlExpression

A SQL representation of Object.

method MethodInfo

The method info from Method.

arguments IReadOnlyList<SqlExpression>

SQL representations of Arguments.

logger IDiagnosticsLogger<DbLoggerCategory.Query>

The query logger to use.

Returns

SqlExpression

A SQL translation of the MethodCallExpression.