introduce new treesitter type

Author: juleswritescode

crates/pgt_completions/src/relevance/filtering.rs

@@ -163,7 +163,7 @@ impl CompletionFilter<'_> {
                             // only autocomplete left side of binary expression
                             WrappingClause::Where => {
                                 ctx.before_cursor_matches_kind(&["keyword_and", "keyword_where"])
-                                    || (ctx.before_cursor_matches_kind(&["."])
+                                    || (ctx.before_cursor_matches_kind(&["field_qualifier"])
                                         && ctx.matches_ancestor_history(&["field"]))
                             }
 

crates/pgt_treesitter/src/queries/select_columns.rs

@@ -10,8 +10,10 @@ static TS_QUERY: LazyLock<tree_sitter::Query> = LazyLock::new(|| {
     (select_expression
         (term
             (field
-                (object_reference)? @alias
-                "."?
+                (field_qualifier
+                    (object_reference) @alias
+                    "."
+                )?
                 (identifier) @column
             )
         )

crates/pgt_treesitter/src/queries/where_columns.rs

@@ -12,8 +12,10 @@ static TS_QUERY: LazyLock<tree_sitter::Query> = LazyLock::new(|| {
         (binary_expression
             (binary_expression 
                 (field
-                    (object_reference)? @alias
-                    "."?
+                    (field_qualifier
+                        (object_reference) @alias
+                        "."
+                    )?
                     (identifier) @column
                 )
             )

crates/pgt_treesitter_grammar/grammar.js

@@ -21,6 +21,7 @@ module.exports = grammar({
   ],
 
   conflicts: ($) => [
+    [$.all_fields, $.field_qualifier],
     [$.object_reference, $._qualified_field],
     [$.object_reference],
     [$.between_expression, $.binary_expression],
@@ -2805,10 +2806,10 @@ module.exports = grammar({
     field: ($) => field("name", $.identifier),
 
     _qualified_field: ($) =>
-      seq(
-        optional(seq(optional_parenthesis($.object_reference), ".")),
-        field("name", $.identifier)
-      ),
+      seq(optional($.field_qualifier), field("name", $.identifier)),
+
+    field_qualifier: ($) =>
+      seq(prec.left(optional_parenthesis($.object_reference)), "."),
 
     implicit_cast: ($) => seq($._expression, "::", $.type),