docs: improve legacy windows and linux install guidance

crates/dbx-core/src/agent_offline_export.rs

@@ -417,7 +417,7 @@ fn export_agents_offline_unlocked(
         let plan = inspect_offline_package(package)?;
         let expected = drivers.iter().map(|driver| driver.db_type.clone()).collect::<BTreeSet<_>>();
         let actual = plan.driver_keys.into_iter().collect::<BTreeSet<_>>();
-        if expected != actual || plan.includes_jre != !jres.is_empty() {
+        if expected != actual || plan.includes_jre == jres.is_empty() {
             return Err("Generated offline Agent package failed compatibility validation".to_string());
         }
         Ok(())

crates/dbx-core/src/schema.rs

@@ -5840,7 +5840,7 @@ async fn list_objects_once(
     let db_config = connection_config(state, connection_id).await;
     let force_local_table_name_filter = table_name_filter.is_some_and(|filter| !filter.is_empty());
     let (mysql_limit, mysql_offset) = if filter.is_none_or(|value| value.trim().is_empty())
-        && !table_name_filter.is_some_and(|filter| !filter.is_empty())
+        && table_name_filter.is_none_or(|filter| filter.is_empty())
     {
         (limit, offset)
     } else {
@@ -9429,10 +9429,9 @@ fn postgres_missing_prokind_error(err: &str) -> bool {
     // PostgreSQL localizes the undefined-column message (for example, Chinese
     // servers report "字段 p.prokind 不存在"). Keep the column context so an
     // unrelated relation named `prokind` cannot trigger this compatibility path.
-    let undefined_column = lower.contains("sqlstate 42703")
+    lower.contains("sqlstate 42703")
         || (lower.contains("does not exist") && lower.contains("column"))
-        || (err.contains("不存在") && (err.contains("字段") || err.contains("列 p.prokind")));
-    undefined_column
+        || (err.contains("不存在") && (err.contains("字段") || err.contains("列 p.prokind")))
 }
 
 fn opengauss_sequence_cache_metadata_error(err: &str) -> bool {

crates/dbx-core/src/sql_dialect/table_select.rs

@@ -209,9 +209,9 @@ pub fn build_table_data_select_sql_with_database(
     let table = if let Some(database) = jdbc_tdengine_database {
         qualified_table_name(Some(DatabaseType::Tdengine), Some(database), &options.table_name)
     // Doris / StarRocks multi-catalog: prefix the catalog for external-catalog tables.
-    } else if database_type == Some(DatabaseType::Iris) {
-        table_data_qualified_table_name(database_type, schema, &options.table_name, options.identifier_quote.as_deref())
-    } else if uses_connection_identifier_quote(database_type, options.identifier_quote.as_deref()) {
+    } else if database_type == Some(DatabaseType::Iris)
+        || uses_connection_identifier_quote(database_type, options.identifier_quote.as_deref())
+    {
         table_data_qualified_table_name(database_type, schema, &options.table_name, options.identifier_quote.as_deref())
     } else if include_database_name {
         database_qualified_table_name(