KV is the best option in the cloudflare arsenal for it?
KV is the best option in the cloudflare arsenal for it?
Muntil we start handling the regional read replicas for you, probably yeah
Mcan do
MGitHub
Which Cloudflare product(s) does this pertain to? D1 What version of Wrangler are you using? 2.19.0 What operating system are you using? macOS Describe the Bug As per issue #555 we can see, that d1...
Mwe need it 
CIf the issue is still open then I would assume it hasn't been fixed
Mjust a kind reminder
CAny timetable on when the 1GB storage will be available?
A+1 I'm also keen for this to be fixed. It has flow on effects in drizzle-orm, joins just don't work correctly for any queries run against D1.
MI can send you a temporary fix if you are stuck with it
ANah that's ok, I've worked around it by not using joins for now. But it's definitely something I have to actively work around, so keen for a fix from the Cloudflare team.
M
MPlease don't do this.
SIt looks like TS bindings don't align with actual types when calling 'all' from a prepared statement 
The 'results' field has a type of T[][], when actually it's just T[], so I'm forced to use ts-expect-error. Using version 4.20230628.0 of workers types, but it was the case at least since 4.20230321.0 (that's when I started using D1). Also, I'm using experimental backend for D1
Am I doing something wrong? If not, how do I report it properly (e.g. github issue) so it can be tracked?
The 'results' field has a type of T[][], when actually it's just T[], so I'm forced to use ts-expect-error. Using version 4.20230628.0 of workers types, but it was the case at least since 4.20230321.0 (that's when I started using D1). Also, I'm using experimental backend for D1
Am I doing something wrong? If not, how do I report it properly (e.g. github issue) so it can be tracked?
IIt seems like it’s passing in Out[] as the result type, which is not what you are passing… have you tried restarting Typescript or the editor?
UFrom reading the issue it seems like they are probably just going to make that throw an error instead of returning data at all and you should be using
AS
VDurable Objects run in a ton of regions, as for the D1 read replicas will they match these regions or run in fewer ones? DO give the best performance as of now as they run the closest and was just wondering if this will be the same in the future. Guess it's kinda overkill to run 8 read replicas for a db.
UD1 is a durable object so it will be the same regions but how many it will be in no clue. My guess is probably 3 maybe 4 
UDurable object’s performance really depend though because if you have 1 object used by many users it won’t be close to all of them as they aren’t replicated each object only exists in one location
VI have one DO per user and this is why I was wondering about D1/DO speed
Vas with my current setup DO is really close to the user and so everything is snappy. D1 will be single-writer as stated by the team so the write speeds will be always faster for DO, but I guess reads will be at least as good or better for DOs too.
VIt's just that I'd love to write SQL instead of DOs, lot easier for other developers in the team too.
VAnd so which one does one choose, a few hundered ms faster writes, and a couple ten ms faster reads for the end users or easier developer experience
Veasier migrations etc etc, all the goodies that come with the abstraction of D1
MMost web applications are (at least) 80:20 read:write, for what it’s worth.
MNothing stops you from creating multiple D1 databases either — but if you want to query all of your (global) data you need to make a trade-off. We don’t think D1 and DO are really comparable: a SQL database vs a strongly consistent key:value store.
VYeah multiple databases is the same tradeoff as with Durable Objects, I need a global singleton instance to keep track of like list of all users in the system and since that is a single DO it can increase latency for some endpoint where accessing it is needed.
VAlso, even if 80:20 is the ratio of read:writes I have a hard time justifying a 500ms write response for globally distributed users. I know going single writer gives us a lot of consistency but honestly I really like Dynamos model, where one at least has the option to go multi writer while still having a single database/table
VAnyways, can't wait for D1 to get out of beta and to learn about it's capabilities and test it against other DBs 
KHey! Just want to let you know I'm continuing to try to debug what's going on with your database. It seems for some reason our metadata storage is dropping connections but only when we try to query your object specifically. The data is all there and fine, but the backend drops the connection whenever we try to grab the lock to start up the object, and our current observability isn't sufficient to tell me what exactly went wrong. Debugging is slow because we have to push a new runtime release to test each theory about what's happening here, since we can repro with any kind of test data, but it's going... (I did three releaess over the weekend for this.)
It's possible we could get the object working again more quickly by resetting some state but then we'd never know exactly what went wrong, so it could happen again someday. Since you say it's not critical for you, I'd like to keep trying to debug, but let me know if that changes and you want me to prioritize getting the object working without understanding what broke.
It's possible we could get the object working again more quickly by resetting some state but then we'd never know exactly what went wrong, so it could happen again someday. Since you say it's not critical for you, I'd like to keep trying to debug, but let me know if that changes and you want me to prioritize getting the object working without understanding what broke.
CThanks for the update! Yea no worries, take as much time as you need
Mis there/will there be a way to import the file from
db.dump()How will workers figure out which D1 replica to read from? Something using the smart placement feature?
MWe'll share more once we get closer 
Msounds like you might want to debounce your searches every 300ms or so https://github.com/sindresorhus/debounce-fn
MIf you had 100,000 rows, each 200 bytes wide, and had to perform a full table scan every time - that’s approximately 5,000 read units out of the 25 billion per month included - or 5 million full table scans. Free.
MThis isn’t to say an index - https://developers.cloudflare.com/d1/learning/using-indexes/
- https://stackoverflow.com/a/57082926/556573
- isn’t useful, but unless you have millions of rows or really wide rows, cost isn’t likely to be a problem. Performance is the reason.
Indexes enable D1 to improve query performance over the indexed columns for common (popular) queries by reducing the amount of data (number of rows) …
Stack Overflow
There is sort order when creating index for sqlite.
https://sqlite.org/lang_createindex.html
Each column name or expression can be followed by one of the "ASC" or "DESC" keywords to indicate ...
https://sqlite.org/lang_createindex.html
Each column name or expression can be followed by one of the "ASC" or "DESC" keywords to indicate ...
MIndexes that optimize ORDER BY must consider the ASC/DESC and NULLS FIRST/LAST modifiers.
MI’d suggest following the D1 tutorial if you haven’t yet: https://developers.cloudflare.com/d1/get-started/
- this will show you how to query a D1 DB from a Worker.
NI remember seeing an intellij plugin for d1, but I can't find it anywhere, could somebody help me?
N
Mcc @geelen
MWhy indexes are useful (I was writing a little demo app w/ Remix...)
ORDER BY random() LIMIT 25ORDER BY created_at DESC LIMIT 25-> 0.20ms query execution timecreated_at DESC
