Super slow speed on large data set of floating numbers for SELECT operation

SQLDelight Version

1.5.3

Application Operating System

Android

Describe the Bug

Problem

Perfoming the following operation: Given a dataset of 1000 elements that contain floating numbers, perform SELECT * operation Takes a huge amount time (>1500 milliseconds), but it shouldn’t

Code snippet

WeatherLog.sq

CREATE TABLE weatherLog(
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    temperature REAL,
    humidity REAL,
    pressure REAL
);

selectAll:
SELECT *
FROM weatherLog;

WeatherDbDataSource

    override suspend fun loadAll() {
        weatherLogQueries.selectAll()
    }

Performance result

SQLDelight performance screenshot

Why is this a bug

The same operation takes no time on Room. Since both are wrappers over SQLite I expect the results of SQLDelight to be similar to Room. They are similar for strings. But not for real numbers, hence I assume there is a bug

Room performance screenshot

Stacktrace

There are no errors in stacktrace

[AlecStrong]

👍 indeed very weird. I can take a look

[AlecStrong]

    override suspend fun loadAll() {
        weatherLogQueries.selectAll()
    }

this isn’t running any SQL, it’s just creating the query type