GroupKeys

Defined in: packages/db/src/query/builder/group-keys.ts:9

Group keys for query.groupBy(...) when the query has no aggregate. Aggregates such as count bring the grouping compiler themselves.

Type Parameters

TContext

TContext extends Context

Properties

callback

callback: GroupByCallback<TContext>;

Defined in: packages/db/src/query/builder/group-keys.ts:10

grouping

grouping: object;

Defined in: packages/db/src/query/builder/group-keys.ts:11

processGroupBy()

processGroupBy: (pipeline, groupByClause, valueIdentity, isSourceRef, havingClauses?, selectClause?, fnHavingClauses?, aggregateCollectionId?, mainSource?, sanitizeCallbackRows) => NamespacedAndKeyedStream;

Processes the GROUP BY clause with optional HAVING and SELECT Works with the new $selected structure from early SELECT processing

Parameters

pipeline

NamespacedAndKeyedStream

groupByClause

GroupBy

valueIdentity

ValueIdentity

isSourceRef

(ref) => boolean

Whether a ref reads a field of the query's own rows.

havingClauses?

Where[]

selectClause?

Select

fnHavingClauses?

(row) => any[]

aggregateCollectionId?

string

mainSource?

string

sanitizeCallbackRows?

boolean = false

Returns

NamespacedAndKeyedStream

replaceAggregatesByRefs()

replaceAggregatesByRefs: (havingExpr, selectClause, resultAlias) => BasicExpression;

Transforms expressions to replace aggregate functions with references to computed values.

For aggregate expressions, finds matching aggregates in the SELECT clause and replaces them with PropRef([resultAlias, alias]) to reference the computed aggregate value.

Ref expressions (table columns and $selected fields) and value expressions are passed through unchanged. Function expressions are recursively transformed.