Database.Relational.Query.ProjectableExtended

Projection for nested Maybes

class ProjectableFlattenMaybe a b

flattenPiMaybe

Get narrower projections

(!)

(?!)

(?!?)

(!??)

(.!)

(.?)

Aggregate functions

unsafeAggregateOp

count

sum'

sumMaybe

avg

avgMaybe

max'

maxMaybe

min'

minMaybe

every

any'

some'

Zipping projection type trick

class ProjectableIdZip p

class ProjectableRunIdsZip a b

flattenPh