From e9b8b0265d86f6f4874f6a75ddcef5413c3bcb9e Mon Sep 17 00:00:00 2001
From: Nikita Sivukhin <sivukhin@turso.tech>
Date: Tue, 30 Sep 2025 16:16:04 +0400
Subject: [PATCH] skip NULL in case of search over index

---
 core/translate/main_loop.rs | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/core/translate/main_loop.rs b/core/translate/main_loop.rs
index eb1c874e9..6b5107259 100644
--- a/core/translate/main_loop.rs
+++ b/core/translate/main_loop.rs
@@ -1148,9 +1148,19 @@ fn emit_seek(
         // depending on the iteration direction.
         match seek_def.iter_dir {
             IterationDirection::Forwards => {
-                program.emit_insn(Insn::Rewind {
+                // the seek always has some bound condition over indexed column (e.g. c < ?, c >= ?, ...)
+                // so, NULL always must be filtered out
+                // (note, that complex filters like c < ? OR c IS NULL will produce Scan operation instead of Search)
+                program.emit_insn(Insn::Null {
+                    dest: start_reg,
+                    dest_end: None,
+                });
+                program.emit_insn(Insn::SeekGT {
+                    is_index,
                     cursor_id: seek_cursor_id,
-                    pc_if_empty: loop_end,
+                    start_reg,
+                    num_regs: 1,
+                    target_pc: loop_end,
                 });
             }
             IterationDirection::Backwards => {