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Commit5e80c26

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authored
SDK - Better async streaming and 1.0.2 bump
1 parentf2f5506 commit5e80c26

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5 files changed

+40
-114
lines changed

5 files changed

+40
-114
lines changed

‎pgml-sdks/pgml/Cargo.toml‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
[package]
22
name ="pgml"
3-
version ="1.0.1"
3+
version ="1.0.2"
44
edition ="2021"
55
authors = ["PosgresML <team@postgresml.org>"]
66
homepage ="https://postgresml.org/"

‎pgml-sdks/pgml/javascript/package.json‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
{
22
"name":"pgml",
3-
"version":"1.0.1",
3+
"version":"1.0.2",
44
"description":"Open Source Alternative for Building End-to-End Vector Search Applications without OpenAI & Pinecone",
55
"keywords": [
66
"postgres",

‎pgml-sdks/pgml/pyproject.toml‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@ build-backend = "maturin"
55
[project]
66
name ="pgml"
77
requires-python =">=3.7"
8-
version ="1.0.1"
8+
version ="1.0.2"
99
description ="Python SDK is designed to facilitate the development of scalable vector search applications on PostgreSQL databases."
1010
authors = [
1111
{name ="PostgresML",email ="team@postgresml.org"},

‎pgml-sdks/pgml/src/transformer_pipeline.rs‎

Lines changed: 34 additions & 106 deletions
Original file line numberDiff line numberDiff line change
@@ -1,12 +1,6 @@
11
use anyhow::Context;
2-
use futures::Stream;
32
use rust_bridge::{alias, alias_methods};
4-
use sqlx::{postgres::PgRow,Row};
5-
use sqlx::{Postgres,Transaction};
6-
use std::collections::VecDeque;
7-
use std::future::Future;
8-
use std::pin::Pin;
9-
use std::task::Poll;
3+
use sqlx::Row;
104
use tracing::instrument;
115

126
/// Provides access to builtin database methods
@@ -22,99 +16,6 @@ use crate::{get_or_initialize_pool, types::Json};
2216
#[cfg(feature ="python")]
2317
usecrate::types::{GeneralJsonAsyncIteratorPython,JsonPython};
2418

25-
#[allow(clippy::type_complexity)]
26-
structTransformerStream{
27-
transaction:Option<Transaction<'static,Postgres>>,
28-
future:Option<Pin<Box<dynFuture<Output =Result<Vec<PgRow>, sqlx::Error>> +Send +'static>>>,
29-
commit:Option<Pin<Box<dynFuture<Output =Result<(), sqlx::Error>> +Send +'static>>>,
30-
done:bool,
31-
query:String,
32-
db_batch_size:i32,
33-
results:VecDeque<PgRow>,
34-
}
35-
36-
impl std::fmt::DebugforTransformerStream{
37-
fnfmt(&self,f:&mut std::fmt::Formatter<'_>) -> std::fmt::Result{
38-
f.debug_struct("TransformerStream").finish()
39-
}
40-
}
41-
42-
implTransformerStream{
43-
fnnew(transaction:Transaction<'static,Postgres>,db_batch_size:i32) ->Self{
44-
let query =format!("FETCH {} FROM c", db_batch_size);
45-
Self{
46-
transaction:Some(transaction),
47-
future:None,
48-
commit:None,
49-
done:false,
50-
query,
51-
db_batch_size,
52-
results:VecDeque::new(),
53-
}
54-
}
55-
}
56-
57-
implStreamforTransformerStream{
58-
typeItem = anyhow::Result<Json>;
59-
60-
fnpoll_next(
61-
mutself:Pin<&mutSelf>,
62-
cx:&mut std::task::Context<'_>,
63-
) ->Poll<Option<Self::Item>>{
64-
ifself.done{
65-
ifletSome(c) =self.commit.as_mut(){
66-
if c.as_mut().poll(cx).is_ready(){
67-
self.commit =None;
68-
}
69-
}
70-
}else{
71-
ifself.future.is_none(){
72-
unsafe{
73-
let s =self.as_mut().get_unchecked_mut();
74-
let s:*mutSelf = s;
75-
let s =Box::leak(Box::from_raw(s));
76-
s.future =Some(Box::pin(
77-
sqlx::query(&s.query).fetch_all(&mut**s.transaction.as_mut().unwrap()),
78-
));
79-
}
80-
}
81-
82-
ifletPoll::Ready(o) =self.as_mut().future.as_mut().unwrap().as_mut().poll(cx){
83-
let rows = o?;
84-
if rows.len() <self.db_batch_sizeasusize{
85-
self.done =true;
86-
unsafe{
87-
let s =self.as_mut().get_unchecked_mut();
88-
let transaction = std::mem::take(&mut s.transaction).unwrap();
89-
s.commit =Some(Box::pin(transaction.commit()));
90-
}
91-
}else{
92-
unsafe{
93-
let s =self.as_mut().get_unchecked_mut();
94-
let s:*mutSelf = s;
95-
let s =Box::leak(Box::from_raw(s));
96-
s.future =Some(Box::pin(
97-
sqlx::query(&s.query).fetch_all(&mut**s.transaction.as_mut().unwrap()),
98-
));
99-
}
100-
}
101-
for rin rows.into_iter(){
102-
self.results.push_back(r)
103-
}
104-
}
105-
}
106-
107-
if !self.results.is_empty(){
108-
let r =self.results.pop_front().unwrap();
109-
Poll::Ready(Some(Ok(r.get::<Json,_>(0))))
110-
}elseifself.done{
111-
Poll::Ready(None)
112-
}else{
113-
Poll::Pending
114-
}
115-
}
116-
}
117-
11819
#[alias_methods(new, transform, transform_stream)]
11920
implTransformerPipeline{
12021
/// Creates a new [TransformerPipeline]
@@ -200,7 +101,7 @@ impl TransformerPipeline {
200101
) -> anyhow::Result<GeneralJsonAsyncIterator>{
201102
let pool =get_or_initialize_pool(&self.database_url).await?;
202103
let args = args.unwrap_or_default();
203-
let batch_size = batch_size.unwrap_or(10);
104+
let batch_size = batch_size.unwrap_or(1);
204105

205106
letmut transaction = pool.begin().await?;
206107
// We set the task in the new constructor so we can unwrap here
@@ -234,10 +135,37 @@ impl TransformerPipeline {
234135
.await?;
235136
}
236137

237-
Ok(GeneralJsonAsyncIterator(Box::pin(TransformerStream::new(
238-
transaction,
239-
batch_size,
240-
))))
138+
let s = futures::stream::try_unfold(transaction,move |mut transaction|asyncmove{
139+
let query =format!("FETCH {} FROM c", batch_size);
140+
letmut res:Vec<Json> = sqlx::query_scalar(&query)
141+
.fetch_all(&mut*transaction)
142+
.await?;
143+
if !res.is_empty(){
144+
if batch_size >1{
145+
let res:Vec<String> = res
146+
.into_iter()
147+
.map(|v|{
148+
v.0.as_array()
149+
.context("internal SDK error - cannot parse db value as array. Please post a new github issue")
150+
.map(|v|{
151+
v[0].as_str()
152+
.context(
153+
"internal SDK error - cannot parse db value as string. Please post a new github issue",
154+
)
155+
.map(|v| v.to_owned())
156+
})
157+
})
158+
.collect::<anyhow::Result<anyhow::Result<Vec<String>>>>()??;
159+
Ok(Some((serde_json::json!(res).into(), transaction)))
160+
}else{
161+
Ok(Some((std::mem::take(&mut res[0]), transaction)))
162+
}
163+
}else{
164+
transaction.commit().await?;
165+
Ok(None)
166+
}
167+
});
168+
Ok(GeneralJsonAsyncIterator(Box::pin(s)))
241169
}
242170
}
243171

@@ -305,7 +233,7 @@ mod tests {
305233
serde_json::json!("AI is going to").into(),
306234
Some(
307235
serde_json::json!({
308-
"max_new_tokens":10
236+
"max_new_tokens":30
309237
})
310238
.into(),
311239
),

‎pgml-sdks/pgml/src/types.rs‎

Lines changed: 3 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
use anyhow::Context;
2-
use futures::{Stream,StreamExt};
2+
use futures::{stream::BoxStream,Stream,StreamExt};
33
use itertools::Itertools;
44
use rust_bridge::alias_manual;
55
use sea_query::Iden;
@@ -123,11 +123,9 @@ impl IntoTableNameAndSchema for String {
123123
}
124124
}
125125

126-
/// A wrapper around `std::pin::Pin<Box<dyn Stream<Item =anyhow::Result<Json>> + Send>>`
126+
/// A wrapper around `BoxStream<'static,anyhow::Result<Json>>`
127127
#[derive(alias_manual)]
128-
pubstructGeneralJsonAsyncIterator(
129-
pub std::pin::Pin<Box<dynStream<Item = anyhow::Result<Json>> +Send>>,
130-
);
128+
pubstructGeneralJsonAsyncIterator(pubBoxStream<'static, anyhow::Result<Json>>);
131129

132130
implStreamforGeneralJsonAsyncIterator{
133131
typeItem = anyhow::Result<Json>;

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