From ae53a19440fa647851f123026500d1eca87fb5c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20Rish=C3=B8j?= <christian@rishoj.net>
Date: Thu, 11 Sep 2025 21:46:33 +0200
Subject: [PATCH 1/3] use native `declaredTypes` of `Statement`

---
 src/adapter.ts | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/adapter.ts b/src/adapter.ts
index b1752ef..c7fe0d7 100644
--- a/src/adapter.ts
+++ b/src/adapter.ts
@@ -144,13 +144,7 @@ class BunSQLiteQueryable implements SqlQueryable {
       }
 
       // Try to get proper column types from table schema
-      let declaredTypes: Array<string | null>;
-      const tableName = this.getTableFromQuery(query.sql);
-      if (tableName) {
-        declaredTypes = await this.getColumnTypes(tableName, columns);
-      } else {
-        declaredTypes = columns.map((col: any) => null);
-      }
+      const declaredTypes: Array<string | null> = stmt.declaredTypes;
 
       const resultSet = {
         declaredTypes,
@@ -445,4 +439,4 @@ function configureWALMode(db: Database, walConfig: boolean | WALConfig): void {
     db.exec(`PRAGMA busy_timeout = ${config.busyTimeout};`);
     debug(`Busy timeout set to: ${config.busyTimeout}ms`);
   }
-}
\ No newline at end of file
+}

From 88bff28e770603609049283db3bcda22a4be6033 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20Rish=C3=B8j?= <christian@rishoj.net>
Date: Thu, 11 Sep 2025 21:49:01 +0200
Subject: [PATCH 2/3] remove unused methods

---
 src/adapter.ts | 34 ----------------------------------
 1 file changed, 34 deletions(-)

diff --git a/src/adapter.ts b/src/adapter.ts
index c7fe0d7..28bb37c 100644
--- a/src/adapter.ts
+++ b/src/adapter.ts
@@ -93,40 +93,6 @@ class BunSQLiteQueryable implements SqlQueryable {
     }
   }
 
-  private getTableFromQuery(sql: string): string | null {
-    // Simple regex to extract table name from SELECT queries
-    // This handles common cases like SELECT ... FROM table, SELECT ... FROM "table", etc.
-    const match = sql.match(/\bFROM\s+(?:`([^`]+)`|"([^"]+)"|(\w+))/i);
-    return match ? (match[1] || match[2] || match[3]) : null;
-  }
-
-  private async getColumnTypes(tableName: string, columnNames: string[]): Promise<Array<string | null>> {
-    try {
-      const tableInfoStmt = this.db.query(`PRAGMA table_info(${tableName})`);
-      const tableInfo = tableInfoStmt.all() as Array<{
-        cid: number;
-        name: string;
-        type: string;
-        notnull: number;
-        dflt_value: string | null;
-        pk: number;
-      }>;
-
-      // Create a map of column names to types
-      const typeMap = new Map<string, string>();
-      tableInfo.forEach(col => {
-        typeMap.set(col.name, col.type);
-      });
-
-      // Return types in the same order as columnNames
-      return columnNames.map(name => typeMap.get(name) || null);
-    } catch (e) {
-      debug("Failed to get column types for table %s: %O", tableName, e);
-      // Fall back to null types if we can't get schema info
-      return columnNames.map(() => null);
-    }
-  }
-
   private async performIO(query: SqlQuery): Promise<BunSQLiteResultSet> {
     try {
       const stmt = this.db.query(query.sql);

From f1c1bd19ccadc67e821ecb2ab13d33ae31ff553e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20Rish=C3=B8j?= <christian@rishoj.net>
Date: Thu, 11 Sep 2025 21:51:47 +0200
Subject: [PATCH 3/3] comment

---
 src/adapter.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/adapter.ts b/src/adapter.ts
index 28bb37c..731b9bb 100644
--- a/src/adapter.ts
+++ b/src/adapter.ts
@@ -109,7 +109,7 @@ class BunSQLiteQueryable implements SqlQueryable {
         });
       }
 
-      // Try to get proper column types from table schema
+      // Schema-declared types may be available. Will be `null` for e.g. computed columns or expressions
       const declaredTypes: Array<string | null> = stmt.declaredTypes;
 
       const resultSet = {