put table definition2 - name change

web/src/pages/admin/table_definition/loader.rs

@@ -279,7 +279,9 @@ pub(crate) async fn load_page(
         || tables
             .iter()
             .any(|table| table.name == inputs.selection.table && table.global);
-    inputs.columns.table_name = inputs.selection.table.clone();
+    if inputs.columns.table_name.is_empty() {
+        inputs.columns.table_name = inputs.selection.table.clone();
+    }
 
     Ok(TableDefinitionPageState {
         nav: crate::ui::Nav::from_authorization(headers, "admin", &authorization),

web/src/pages/admin/table_definition/logic.rs

@@ -27,7 +27,7 @@ use crate::{
         PutTableDefinitionRequest,
     },
     {i18n::Locale, tr},
-    schema::{ColumnForm, proto_columns},
+    schema::{ColumnForm, proto_columns, validate_table_name},
     services::{authenticated_request, reject_cross_site},
 };
 
@@ -189,6 +189,7 @@ pub(crate) async fn update_columns(
 
     let mut inputs = PageInputs::for_selection(selection);
     inputs.columns = form.to_draft(catalog, false);
+    inputs.columns.table_name = form.table_name_input.trim().to_string();
 
     let index = form.index.unwrap_or(0);
     let locale = Locale::from_headers(&headers);
@@ -239,6 +240,7 @@ pub(crate) async fn add_columns(
 
     let mut inputs = PageInputs::for_selection(selection);
     inputs.columns = form.to_draft(catalog.clone(), false);
+    inputs.columns.table_name = form.table_name_input.trim().to_string();
     inputs.remove_column_ids = form.remove_column_ids.clone();
 
     if !inputs.selection.has_table() {
@@ -255,7 +257,21 @@ pub(crate) async fn add_columns(
         )
         .await;
     }
-    if inputs.columns.is_empty() && inputs.remove_column_ids.is_empty() {
+    let requested_table_name = if inputs.columns.table_name.is_empty() {
+        inputs.selection.table.clone()
+    } else {
+        inputs.columns.table_name.clone()
+    };
+    let renaming = requested_table_name != inputs.selection.table;
+    if renaming
+        && let Some(message) = validate_table_name(
+            Locale::from_headers(&headers),
+            &requested_table_name,
+        )
+    {
+        return refuse(state, headers, inputs, Page::AddColumns, message).await;
+    }
+    if inputs.columns.is_empty() && inputs.remove_column_ids.is_empty() && !renaming {
         let message = tr!(
             Locale::from_headers(&headers),
             "td-err-describe-change"
@@ -314,6 +330,7 @@ pub(crate) async fn add_columns(
         add_indexes: inputs.columns.selected_index_names(),
         generated_aliases: Vec::new(),
         expected_row_version: form.expected_row_version,
+        new_table_name: requested_table_name.clone(),
     };
     let Ok(request) = authenticated_request(&headers, request) else {
         return Redirect::to("/login").into_response();
@@ -330,9 +347,11 @@ pub(crate) async fn add_columns(
                 "td-definition-adjusted",
                 "added" => added as i64,
                 "removed" => removed as i64,
-                "table" => inputs.selection.table.clone(),
+                "table" => requested_table_name.clone(),
             ));
+            inputs.selection.table = requested_table_name.clone();
             inputs.columns = crate::schema::ColumnDraft::for_append(catalog);
+            inputs.columns.table_name = requested_table_name;
             inputs.remove_column_ids.clear();
             respond(state, headers, inputs, Page::AddColumns, StatusCode::OK).await
         }

web/src/pages/admin/table_definition/ui.rs

@@ -456,6 +456,7 @@ mod tests {
         let add_html = render_add_columns_page(&page());
         assert!(add_html.contains(r#"id="column-form""#), "{add_html}");
         assert!(add_html.contains(r#"name="expected_row_version" value="1""#), "{add_html}");
+        assert!(add_html.contains(r#"name="table_name_input" value="invoice""#), "{add_html}");
         assert!(add_html.contains(r#"name="remove_column_ids" value="1""#), "{add_html}");
         assert!(add_html.contains("Adjust table"), "{add_html}");
         assert!(!add_html.contains(r#"name="alias""#), "{add_html}");

web/src/schema/mod.rs

@@ -1422,6 +1422,10 @@ pub(crate) struct ColumnForm {
     pub remove_column_ids: Vec<i64>,
     #[serde(default)]
     pub expected_row_version: i64,
+    /// The requested name of an existing empty table. The append-only form
+    /// does not render it, so populated tables decode this as empty.
+    #[serde(default)]
+    pub table_name_input: String,
 
     #[serde(default)]
     pub column_name_input: String,