/// <summary>
/// Creates a <see cref="Mutation"/> which deletes cells from the specified column, optionally
/// restricting the deletions to a given version range.
/// </summary>
/// <remarks>
/// <para>
/// Note that string is implicitly convertible to <see cref="BigtableByteString"/>,
/// so <paramref name="columnQualifier"/> can be specified using a string as well and
/// its UTF-8 representations will be used.
/// </para>
/// </remarks>
/// <param name="familyName">
/// The name of the family from which cells should be deleted.
/// Must match `[-_.a-zA-Z0-9]+`
/// </param>
/// <param name="columnQualifier">
/// The qualifier of the column from which cells should be deleted.
/// Can be any byte string, including the empty string.
/// </param>
/// <param name="versionRange">
/// [Optional] The range of versions within which cells should be deleted.
/// If unspecified, all versions will be deleted.
/// </param>
/// <returns>The created Mutation instance.</returns>
public static Mutation DeleteFromColumn(
string familyName,
BigtableByteString columnQualifier,
BigtableVersionRange versionRange = null) =>
new Mutation
{
DeleteFromColumn = new Mutation.Types.DeleteFromColumn
{
FamilyName = ValidateFamilyName(familyName),
ColumnQualifier = columnQualifier.Value,
TimeRange = versionRange.ToTimestampRange()
}
};
/// <summary>
/// Creates a new <see cref="RowFilter"/> instance which matches only cells
/// with versions within the given range.
/// </summary>
/// <param name="range">
/// The range of versions from which cells should be matched. Must not be null.
/// </param>
/// <returns>The created row filter.</returns>
public static RowFilter VersionRange(BigtableVersionRange range) =>
new RowFilter
{
TimestampRangeFilter = GaxPreconditions.CheckNotNull(range, nameof(range)).ToTimestampRange()
};