esqueleto-2.2.10: Type-safe EDSL for SQL queries on persistent backends.
Database.Esqueleto.PostgreSQL
Description
This module contain PostgreSQL-specific functions.
Since: 2.2.8
Synopsis
arrayAgg :: SqlExpr (Value a) -> SqlExpr (Value [a]) Source
(array_agg) Concatenate input values, including NULLs, into an array.
array_agg
NULL
stringAgg Source
Arguments
Input values.
Delimiter.
Concatenation.
(string_agg) Concatenate input values separated by a delimiter.
string_agg