fix(completion): always offer custom sql snippets

apps/desktop/src/lib/sql/sqlCompletion.ts

@@ -645,6 +645,7 @@ const JOIN_MODIFIERS = new Set(["left", "right", "inner", "outer", "cross", "ful
 const JOIN_MODIFIER_KEYWORD_PHRASES = ["LEFT JOIN", "RIGHT JOIN", "INNER JOIN", "FULL JOIN", "CROSS JOIN", "NATURAL JOIN", "LEFT OUTER JOIN", "RIGHT OUTER JOIN", "FULL OUTER JOIN"];
 const MAX_TABLE_COMPLETION_ITEMS = 200;
 const EXACT_LABEL_MATCH_BOOST = 10000;
+const EXACT_CUSTOM_SNIPPET_TRIGGER_BOOST = 40000;
 
 function isTableTriggerKeyword(keyword: string, options: SqlSemanticBuildOptions): boolean {
   return TABLE_TRIGGER_KEYWORDS.has(keyword) || (keyword === "desc" && resolveSqlDialectId(options) === "mysql");
@@ -1540,15 +1541,22 @@ class SqlCompletionProvider {
       return dedupeAndSort(buildMongoCompletionItemsFromContext({ mode: "root", prefix: context.prefix, from: 0 }).map(mongoCompletionItemToSqlCompletionItem));
     }
 
+    const snippets = this.databaseType === "manticoresearch" ? [...(this.input.snippets ?? DEFAULT_SQL_SNIPPETS), ...MANTICORESEARCH_SQL_SNIPPETS] : (this.input.snippets ?? DEFAULT_SQL_SNIPPETS);
+    const customSnippetItems = buildSnippetItems(
+      context.prefix,
+      snippets.filter((snippet) => !shouldFormatBuiltinSnippet(snippet)),
+      this.input.keywordCase,
+      this.databaseType,
+    );
     if (context.preferredValueKeywords?.length) {
-      return dedupeAndSort(buildPreferredKeywordItems(context.prefix, context.preferredValueKeywords, this.input.keywordCase));
+      return dedupeAndSort([...customSnippetItems, ...buildPreferredKeywordItems(context.prefix, context.preferredValueKeywords, this.input.keywordCase)]);
     }
 
     const preferReferencedColumns = hasMatchingReferencedColumnPrefix(context, this.input.columnsByTable);
+    this.items.push(...customSnippetItems);
     if (!pendingJoinKeyword && !context.exclusiveTableSuggestions && !context.exclusiveColumnSuggestions && !context.exclusiveRoutineSuggestions) {
-      const snippets = this.databaseType === "manticoresearch" ? [...(this.input.snippets ?? DEFAULT_SQL_SNIPPETS), ...MANTICORESEARCH_SQL_SNIPPETS] : (this.input.snippets ?? DEFAULT_SQL_SNIPPETS);
       if (!preferReferencedColumns) {
-        this.items.push(...buildSnippetItems(context.prefix, snippets, this.input.keywordCase, this.databaseType));
+        this.items.push(...buildSnippetItems(context.prefix, snippets.filter(shouldFormatBuiltinSnippet), this.input.keywordCase, this.databaseType));
       }
       if (!preferReferencedColumns || context.suggestRoutines) {
         const functionItems = context.dataTypeContext ? [] : buildFunctionSnippetItems(context.prefix, getFunctionDescriptions(this.t), this.databaseType, context.openingParenAfterCursor, this.input.keywordCase, this.input.functionCase);
@@ -4999,6 +5007,7 @@ function buildSnippetItems(prefix: string, snippets: SqlSnippet[], keywordCase?:
       const boostByPrefix = computeBoost(snippet.prefix, prefix);
       const boostByLabel = computeBoost(snippet.label, prefix);
       const matchesByPrefix = matchesPrefix(snippet.prefix, prefix);
+      const isExactCustomTrigger = !shouldFormatBuiltinSnippet(snippet) && snippet.prefix.toLowerCase() === prefix.toLowerCase();
       // When the user types past the snippet prefix (e.g. "sele" vs prefix "sel"),
       // they are likely typing the actual keyword — reduce the base boost so
       // the real keyword can rank higher.
@@ -5014,7 +5023,8 @@ function buildSnippetItems(prefix: string, snippets: SqlSnippet[], keywordCase?:
         type: "snippet" as const,
         detail: body,
         apply,
-        boost: Math.max(boostByPrefix, boostByLabel) + baseBoost,
+        exactMatch: isExactCustomTrigger || undefined,
+        boost: Math.max(boostByPrefix, boostByLabel) + baseBoost + (isExactCustomTrigger ? EXACT_CUSTOM_SNIPPET_TRIGGER_BOOST : 0),
       };
     });
 }