From c2c95df51c130bbbcf7dbd53971a02aa3df25854 Mon Sep 17 00:00:00 2001
From: wu-xingying <729224612@qq.com>
Date: Mon, 23 Dec 2024 12:15:16 +0000
Subject: [PATCH] occupy position for vector index filter

---
 src/sql/das/ob_das_vec_define.cpp |  2 +-
 src/sql/das/ob_das_vec_define.h   | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/sql/das/ob_das_vec_define.cpp b/src/sql/das/ob_das_vec_define.cpp
index 2b55fba3ec..a131e1afb0 100644
--- a/src/sql/das/ob_das_vec_define.cpp
+++ b/src/sql/das/ob_das_vec_define.cpp
@@ -19,7 +19,7 @@ namespace sql
 {
 
 OB_SERIALIZE_MEMBER((ObDASVecAuxScanCtDef, ObDASAttachCtDef),
-                    inv_scan_vec_id_col_, vec_index_param_, dim_);
+                    inv_scan_vec_id_col_, vec_index_param_, dim_, vec_type_, algorithm_type_, selectivity_, row_count_);
 OB_SERIALIZE_MEMBER(ObDASVecAuxScanRtDef);
 
 } // sql
diff --git a/src/sql/das/ob_das_vec_define.h b/src/sql/das/ob_das_vec_define.h
index 2c0f4f0fbf..f19486bba0 100644
--- a/src/sql/das/ob_das_vec_define.h
+++ b/src/sql/das/ob_das_vec_define.h
@@ -28,6 +28,22 @@ enum ObVecAuxTableIdx {
   COM_AUX_TBL_IDX = 4
 };
 
+// temporary solution
+enum ObVecScanType : uint8_t
+{
+  VEC_SCAN_INVALID = 0,
+  VEC_SCAN_POST = 1,
+  VEC_SCAN_PRE = 2
+};
+
+// temporary solution, need to be refactored
+enum ObVecIndexType : uint8_t
+{
+  VEC_INDEX_INVALID = 0,
+  VEC_INDEX_POST = 1,
+  VEC_INDEX_PRE = 2
+};
+
 struct ObDASVecAuxScanCtDef : ObDASAttachCtDef
 {
   OB_UNIS_VERSION(1);
@@ -110,6 +126,10 @@ public:
   ObExpr *inv_scan_vec_id_col_;
   ObString vec_index_param_;
   int64_t dim_;
+  ObVecIndexType vec_type_;
+  ObVectorIndexAlgorithmType algorithm_type_;
+  double selectivity_;
+  double row_count_;
 };
 
 struct ObDASVecAuxScanRtDef : ObDASAttachRtDef