fix(odbc): handle datetime parsing without timezone info

Author: lovasoa

sqlx-core/src/odbc/types/chrono.rs

@@ -211,14 +211,48 @@ impl<'r> Decode<'r, Odbc> for NaiveDateTime {
 impl<'r> Decode<'r, Odbc> for DateTime<Utc> {
     fn decode(value: OdbcValueRef<'r>) -> Result<Self, BoxDynError> {
         let s = <String as Decode<'r, Odbc>>::decode(value)?;
-        Ok(s.parse()?)
+        let s_trimmed = s.trim();
+        
+        // First try to parse as a UTC timestamp with timezone
+        if let Ok(dt) = s_trimmed.parse::<DateTime<Utc>>() {
+            return Ok(dt);
+        }
+        
+        // If that fails, try to parse as a naive datetime and convert to UTC
+        if let Ok(naive_dt) = NaiveDateTime::parse_from_str(s_trimmed, "%Y-%m-%d %H:%M:%S") {
+            return Ok(DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, Utc));
+        }
+        
+        // Finally, try chrono's default naive datetime parser
+        if let Ok(naive_dt) = s_trimmed.parse::<NaiveDateTime>() {
+            return Ok(DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, Utc));
+        }
+        
+        Err(format!("Cannot parse '{}' as DateTime<Utc>", s_trimmed).into())
     }
 }
 
 impl<'r> Decode<'r, Odbc> for DateTime<FixedOffset> {
     fn decode(value: OdbcValueRef<'r>) -> Result<Self, BoxDynError> {
         let s = <String as Decode<'r, Odbc>>::decode(value)?;
-        Ok(s.parse()?)
+        let s_trimmed = s.trim();
+        
+        // First try to parse as a timestamp with timezone/offset
+        if let Ok(dt) = s_trimmed.parse::<DateTime<FixedOffset>>() {
+            return Ok(dt);
+        }
+        
+        // If that fails, try to parse as a naive datetime and assume UTC (zero offset)
+        if let Ok(naive_dt) = NaiveDateTime::parse_from_str(s_trimmed, "%Y-%m-%d %H:%M:%S") {
+            return Ok(DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, Utc).fixed_offset());
+        }
+        
+        // Finally, try chrono's default naive datetime parser
+        if let Ok(naive_dt) = s_trimmed.parse::<NaiveDateTime>() {
+            return Ok(DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, Utc).fixed_offset());
+        }
+        
+        Err(format!("Cannot parse '{}' as DateTime<FixedOffset>", s_trimmed).into())
     }
 }