fix(sql): uuid columns returning null in postgres query results (#2039) (#3144)

Co-authored-by: Fabian-Lars <github@fabianlars.de>

Author: itsmadhusudhan

.changes/fix-sql-query-results-uuid-returned-as-null.md

@@ -0,0 +1,6 @@
+---
+"sql": "patch"
+"sql-js": "patch"
+---
+
+Fixes issue with UUIDs returned as null in sql query results.

Cargo.lock

@@ -29,10 +29,11 @@ tauri = { workspace = true }
 log = { workspace = true }
 thiserror = { workspace = true }
 futures-core = "0.3"
-sqlx = { version = "0.8", features = ["json", "time"] }
+sqlx = { version = "0.8", features = ["json", "time", "uuid"] }
 time = "0.3"
 tokio = { version = "1", features = ["sync"] }
 indexmap = { version = "2", features = ["serde"] }
+uuid = "1"
 
 [features]
 sqlite = ["sqlx/sqlite", "sqlx/runtime-tokio"]

plugins/sql/Cargo.toml

@@ -5,6 +5,7 @@
 use serde_json::Value as JsonValue;
 use sqlx::{postgres::PgValueRef, TypeInfo, Value, ValueRef};
 use time::{Date, OffsetDateTime, PrimitiveDateTime, Time};
+use uuid::Uuid;
 
 use crate::Error;
 
@@ -14,13 +15,20 @@ pub(crate) fn to_json(v: PgValueRef) -> Result<JsonValue, Error> {
     }
 
     let res = match v.type_info().name() {
-        "CHAR" | "VARCHAR" | "TEXT" | "NAME" | "UUID" => {
+        "CHAR" | "VARCHAR" | "TEXT" | "NAME" => {
             if let Ok(v) = ValueRef::to_owned(&v).try_decode() {
                 JsonValue::String(v)
             } else {
                 JsonValue::Null
             }
         }
+        "UUID" => {
+            if let Ok(v) = ValueRef::to_owned(&v).try_decode::<Uuid>() {
+                JsonValue::String(v.to_string())
+            } else {
+                JsonValue::Null
+            }
+        }
         "FLOAT4" => {
             if let Ok(v) = ValueRef::to_owned(&v).try_decode::<f32>() {
                 JsonValue::from(v)