Class: SqlAlterColumn

Extends

• SqlNode

Constructors

new SqlAlterColumn()

new SqlAlterColumn(table: SqlIdentifier, column: SqlColumn): SqlAlterColumn

Parameters

Parameter	Type
table	SqlIdentifier
column	SqlColumn

Returns

SqlAlterColumn

Overrides

SqlNode.constructor

Defined in

packages/verse-core/src/db/sql.ts:434

Properties

column

readonly column: SqlColumn

Defined in

packages/verse-core/src/db/sql.ts:436

---

table

readonly table: SqlIdentifier

Defined in

packages/verse-core/src/db/sql.ts:435

Accessors

binding

get binding(): undefined | SqlBinding

Returns

undefined | SqlBinding

Inherited from

SqlNode.binding

Defined in

packages/verse-core/src/db/sql.ts:102

---

identifier

get identifier(): SqlIdentifier

Returns

SqlIdentifier

Inherited from

SqlNode.identifier

Defined in

packages/verse-core/src/db/sql.ts:127

---

nullable

get nullable(): undefined | boolean

Returns

undefined | boolean

Inherited from

SqlNode.nullable

Defined in

packages/verse-core/src/db/sql.ts:110

---

readable

get readable(): boolean

Returns

boolean

Inherited from

SqlNode.readable

Defined in

packages/verse-core/src/db/sql.ts:114

---

size

get size(): number

Returns

number

Inherited from

SqlNode.size

Defined in

packages/verse-core/src/db/sql.ts:155

---

type

get type(): undefined | SqlType

Returns

undefined | SqlType

Inherited from

SqlNode.type

Defined in

packages/verse-core/src/db/sql.ts:106

Methods

accept()

accept<T, S>(visitor: SqlVisitor<T, unknown>, state?: S): T

Type Parameters

Type Parameter	Default type
T	-
S	unknown

Parameters

Parameter	Type
visitor	SqlVisitor<T, unknown>
state?	S

Returns

T

Overrides

SqlNode.accept

Defined in

packages/verse-core/src/db/sql.ts:441

---

apply()

apply(ctor: Newable<SqlNode>): SqlNode

Parameters

Parameter	Type
ctor	Newable<SqlNode>

Returns

SqlNode

Inherited from

SqlNode.apply

Defined in

packages/verse-core/src/db/sql.ts:147

---

bind()

bind(binding: SqlBinding): SqlNode

Parameters

Parameter	Type
binding	SqlBinding

Returns

SqlNode

Inherited from

SqlNode.bind

Defined in

packages/verse-core/src/db/sql.ts:119

---

compare()

compare(op: SqlBinaryOperator, other: SqlNode): SqlBinary

Parameters

Parameter	Type
op	SqlBinaryOperator
other	SqlNode

Returns

SqlBinary

Inherited from

SqlNode.compare

Defined in

packages/verse-core/src/db/sql.ts:151

---

equals()

equals(other: unknown): boolean

True if this and the other Collection have value equality, as defined by Immutable.is().

Note: This is equivalent to Immutable.is(this, other), but provided to allow for chained expressions.

Parameters

Parameter	Type
other	unknown

Returns

boolean

Overrides

SqlNode.equals

Defined in

packages/verse-core/src/db/sql.ts:445

---

hashCode()

hashCode(): number

Computes and returns the hashed identity for this Collection.

The hashCode of a Collection is used to determine potential equality, and is used when adding this to a Set or as a key in a Map, enabling lookup via a different instance.

const { List, Set } = require('immutable');
const a = List([ 1, 2, 3 ]);
const b = List([ 1, 2, 3 ]);
assert.notStrictEqual(a, b); // different instances
const set = Set([ a ]);
assert.equal(set.has(b), true);

Note: hashCode() MUST return a Uint32 number. The easiest way to guarantee this is to return myHash | 0 from a custom implementation.

If two values have the same hashCode, they are not guaranteed to be equal. If two values have different hashCodes, they must not be equal.

Note: hashCode() is not guaranteed to always be called before equals(). Most but not all Immutable.js collections use hash codes to organize their internal data structures, while all Immutable.js collections use equality during lookups.

Returns

number

Overrides

SqlNode.hashCode

Defined in

packages/verse-core/src/db/sql.ts:454

---

identify()

identify(_: (n: SqlNode) => SqlNode): SqlNode

Parameters

Parameter	Type
_	(n: SqlNode) => SqlNode

Returns

SqlNode

Inherited from

SqlNode.identify

Defined in

packages/verse-core/src/db/sql.ts:131

---

isAggregate()

isAggregate(): boolean

Returns

boolean

Inherited from

SqlNode.isAggregate

Defined in

packages/verse-core/src/db/sql.ts:159

---

map()

map(mapper: (node: SqlNode) => SqlNode): SqlNode

Parameters

Parameter	Type
mapper	(node: SqlNode) => SqlNode

Returns

SqlNode

Inherited from

SqlNode.map

Defined in

packages/verse-core/src/db/sql.ts:143

---

reduce()

reduce(): List<SqlNode>

Returns

List<SqlNode>

Inherited from

SqlNode.reduce

Defined in

packages/verse-core/src/db/sql.ts:139

---

rewrite()

rewrite(rewriter: SqlRewriter): SqlNode

Parameters

Parameter	Type
rewriter	SqlRewriter

Returns

SqlNode

Inherited from

SqlNode.rewrite

Defined in

packages/verse-core/src/db/sql.ts:169

---

scope()

scope(_: SqlIdentifier): SqlNode

Parameters

Parameter	Type
_	SqlIdentifier

Returns

SqlNode

Inherited from

SqlNode.scope

Defined in

packages/verse-core/src/db/sql.ts:123

---

uniquify()

uniquify(_: Set<string>, __: (node: SqlNode) => SqlAlias): SqlNode

Parameters

Parameter	Type
_	Set<string>
__	(node: SqlNode) => SqlAlias

Returns

SqlNode

Inherited from

SqlNode.uniquify

Defined in

packages/verse-core/src/db/sql.ts:135