Struct LTree

Represents a PostgreSQL ltree type. This type is implicitly convertible to a .NET String.

Implements

IEquatable<LTree>

Inherited Members

Object.Equals(Object, Object)

Object.GetType()

Object.ReferenceEquals(Object, Object)

Namespace: Microsoft.EntityFrameworkCore

Assembly: Npgsql.EntityFrameworkCore.PostgreSQL.dll

Syntax

public readonly struct LTree : IEquatable<LTree>

Remarks

See https://www.postgresql.org/docs/current/ltree.html

Constructors

| Improve this Doc View Source

LTree(String)

Constructs a new instance of LTree.

Declaration

public LTree(string value)

Parameters

Type	Name	Description
String	value	The string value for the ltree.

Remarks

See https://www.postgresql.org/docs/current/ltree.html

Properties

| Improve this Doc View Source

NLevel

Returns number of labels in path.

Declaration

public readonly int NLevel { get; }

Property Value

Type	Description
Int32

Remarks

The property is translated to nlevel(ltree).

See https://www.postgresql.org/docs/current/ltree.html

Methods

| Improve this Doc View Source

Equals(LTree)

Represents a PostgreSQL ltree type. This type is implicitly convertible to a .NET String.

Declaration

public readonly bool Equals(LTree other)

Parameters

Type	Name	Description
LTree	other

Returns

Type	Description
Boolean

Remarks

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Equals(Object)

Represents a PostgreSQL ltree type. This type is implicitly convertible to a .NET String.

Declaration

public override readonly bool Equals(object obj)

Parameters

Type	Name	Description
Object	obj

Returns

Type	Description
Boolean

Overrides

ValueType.Equals(Object)

Remarks

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

GetHashCode()

Represents a PostgreSQL ltree type. This type is implicitly convertible to a .NET String.

Declaration

public override readonly int GetHashCode()

Returns

Type	Description
Int32

Overrides

ValueType.GetHashCode()

Remarks

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Index(LTree, Int32)

Returns position of first occurrence of other in this ltree, or -1 if not found. The search starts at position offset; negative offset means start -offset labels from the end of the path.

Declaration

public readonly int Index(LTree other, int offset)

Parameters

Type	Name	Description
LTree	other
Int32	offset

Returns

Type	Description
Int32

Remarks

The method call is translated to index(ltree1, ltree2, offset).

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Index(LTree)

Returns position of first occurrence of other in this ltree, or -1 if not found.

Declaration

public readonly int Index(LTree other)

Parameters

Type	Name	Description
LTree	other

Returns

Type	Description
Int32

Remarks

The method call is translated to index(ltree1, ltree2).

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

IsAncestorOf(LTree)

Returns whether this ltree is an ancestor of other (or equal).

Declaration

public readonly bool IsAncestorOf(LTree other)

Parameters

Type	Name	Description
LTree	other

Returns

Type	Description
Boolean

Remarks

The method call is translated to left @> right.

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

IsDescendantOf(LTree)

Returns whether this ltree is a descendant of other (or equal).

Declaration

public readonly bool IsDescendantOf(LTree other)

Parameters

Type	Name	Description
LTree	other

Returns

Type	Description
Boolean

Remarks

The method call is translated to left <@ right.

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

LongestCommonAncestor(LTree[])

Computes longest common ancestor of paths.

Declaration

public static LTree LongestCommonAncestor(params LTree[] others)

Parameters

Type	Name	Description
LTree[]	others

Returns

Type	Description
LTree

Remarks

The method call is translated to lca(others).

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

MatchesLQuery(String)

Returns whether this ltree matches lquery.

Declaration

public readonly bool MatchesLQuery(string lquery)

Parameters

Type	Name	Description
String	lquery

Returns

Type	Description
Boolean

Remarks

The method call is translated to left ~ right.

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

MatchesLTxtQuery(String)

Returns whether this ltree matches ltxtquery.

Declaration

public readonly bool MatchesLTxtQuery(string ltxtquery)

Parameters

Type	Name	Description
String	ltxtquery

Returns

Type	Description
Boolean

Remarks

The method call is translated to left @ right.

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Subpath(Int32, Int32)

Returns subpath of this ltree starting at position offset, with length len. If offset is negative, subpath starts that far from the end of the path. If len is negative, leaves that many labels off the end of the path.

Declaration

public readonly LTree Subpath(int offset, int len)

Parameters

Type	Name	Description
Int32	offset
Int32	len

Returns

Type	Description
LTree

Remarks

The method call is translated to subpath(ltree, offset, len).

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Subpath(Int32)

Returns subpath of ltree starting at position offset, extending to end of path. If offset is negative, subpath starts that far from the end of the path.

Declaration

public readonly LTree Subpath(int offset)

Parameters

Type	Name	Description
Int32	offset

Returns

Type	Description
LTree

Remarks

The method call is translated to subpath(ltree, offset).

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Subtree(Int32, Int32)

Returns subpath of this ltree from position start to position end-1 (counting from 0).

Declaration

public readonly LTree Subtree(int start, int end)

Parameters

Type	Name	Description
Int32	start
Int32	end

Returns

Type	Description
LTree

Remarks

The method call is translated to subltree(ltree, start, end).

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

ToString()

Represents a PostgreSQL ltree type. This type is implicitly convertible to a .NET String.

Declaration

public override readonly string ToString()

Returns

Type	Description
String

Overrides

ValueType.ToString()

Remarks

See https://www.postgresql.org/docs/current/ltree.html

Operators

| Improve this Doc View Source

Equality(LTree, LTree)

Compares two LTree instances for equality.

Declaration

public static bool operator ==(LTree x, LTree y)

Parameters

Type	Name	Description
LTree	x
LTree	y

Returns

Type	Description
Boolean

Remarks

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Implicit(LTree to String)

Converts a string to an LTree type.

Declaration

public static implicit operator string (LTree ltree)

Parameters

Type	Name	Description
LTree	ltree

Returns

Type	Description
String

Remarks

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Implicit(String to LTree)

Converts an LTree type to a string.

Declaration

public static implicit operator LTree(string value)

Parameters

Type	Name	Description
String	value

Returns

Type	Description
LTree

Remarks

See https://www.postgresql.org/docs/current/ltree.html

| Improve this Doc View Source

Inequality(LTree, LTree)

Compares two LTree instances for inequality.

Declaration

public static bool operator !=(LTree x, LTree y)

Parameters

Type	Name	Description
LTree	x
LTree	y

Returns

Type	Description
Boolean

Remarks

See https://www.postgresql.org/docs/current/ltree.html

Implements

System.IEquatable<T>