fix(odbc): fix datetime parsing for NaiveDateTime and DateTime types

This commit enhances the datetime parsing logic in the ODBC implementation by adding support for parsing fractional seconds in NaiveDateTime and DateTime types. The changes ensure that both strict and fallback formats are handled correctly, improving the robustness of datetime decoding in ODBC connections.

Author: lovasoa

sqlx-core/src/odbc/connection/odbc_bridge.rs

@@ -40,7 +40,6 @@ fn build_bindings<C: Cursor>(
             buffer_desc,
         });
     }
-    dbg!(&bindings);
     log::trace!(
         "built {} ODBC batch column bindings: {:?}",
         bindings.len(),

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

@@ -338,7 +338,10 @@ impl<'r> Decode<'r, Odbc> for NaiveDateTime {
             s = s.trim_end_matches('\u{0}').to_string();
         }
         let s_trimmed = s.trim();
-        // Try strict format first, then fall back to Chrono's FromStr
+
+        if let Ok(dt) = NaiveDateTime::parse_from_str(s_trimmed, "%Y-%m-%d %H:%M:%S%.f") {
+            return Ok(dt);
+        }
         if let Ok(dt) = NaiveDateTime::parse_from_str(s_trimmed, "%Y-%m-%d %H:%M:%S") {
             return Ok(dt);
         }
@@ -383,6 +386,9 @@ impl<'r> Decode<'r, Odbc> for DateTime<Utc> {
         }
 
         // 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%.f") {
+            return Ok(DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, 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));
         }
@@ -428,6 +434,9 @@ impl<'r> Decode<'r, Odbc> for DateTime<FixedOffset> {
         }
 
         // 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%.f") {
+            return Ok(DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, Utc).fixed_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());
         }