From dcdfcd9c45f050e31f020b77aa54fd832d16cde8 Mon Sep 17 00:00:00 2001
From: Varik Matevosyan <varikmatevosyan@gmail.com>
Date: Wed, 21 Feb 2024 13:08:31 +0400
Subject: [PATCH] Fix naming for uppercase table names, check if codebook table
 exists before processing

---
 ci/scripts/build.sh               |  2 +-
 lantern_external_index/Cargo.toml |  2 +-
 lantern_external_index/src/lib.rs | 29 ++++++++++++++++++-----------
 lantern_extras/Cargo.toml         |  2 +-
 4 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/ci/scripts/build.sh b/ci/scripts/build.sh
index 246c9d1..9283879 100755
--- a/ci/scripts/build.sh
+++ b/ci/scripts/build.sh
@@ -56,7 +56,7 @@ function setup_lantern() {
       git submodule update --recursive && \
       mkdir build 
       pushd build
-        cmake -DUSEARCH_NO_MARCH_NATIVE=ON .. && \
+        cmake -DMARCH_NATIVE=OFF -DBUILD_FOR_DSTRIBUTING=1 .. && \
         make install
       popd
     popd
diff --git a/lantern_external_index/Cargo.toml b/lantern_external_index/Cargo.toml
index 2908ac3..5a65aed 100644
--- a/lantern_external_index/Cargo.toml
+++ b/lantern_external_index/Cargo.toml
@@ -13,7 +13,7 @@ clap = { version = "4.4.0", features = ["derive"] }
 cxx = "1.0.106"
 postgres = "0.19.7"
 postgres-types = { version = "0.2.6", features = ["derive"] }
-usearch = { git = "https://github.com/Ngalstyan4/usearch.git", branch = "main-lantern" }
+usearch = { git = "https://github.com/Ngalstyan4/usearch.git", branch="main-lantern" }
 lantern_logger = { path = "../lantern_logger" }
 lantern_utils = { path = "../lantern_utils" }
 rand = "0.8.5"
diff --git a/lantern_external_index/src/lib.rs b/lantern_external_index/src/lib.rs
index 926fad0..e18c901 100644
--- a/lantern_external_index/src/lib.rs
+++ b/lantern_external_index/src/lib.rs
@@ -148,20 +148,26 @@ pub fn create_usearch_index(
     let mut num_subvectors: usize = 0;
 
     if args.pq {
+        let codebook_table_name = format!(
+            "_codebook_{table_name}_{column_name}",
+            table_name = &args.table,
+            column_name = &args.column
+        );
+        let full_codebook_table_name =
+            get_full_table_name("_lantern_internal", &codebook_table_name);
+
+        let rows_codebook_exists = transaction.query("SELECT true FROM information_schema.tables WHERE table_schema='_lantern_internal' AND table_name=$1;", &[&codebook_table_name])?;
+
+        if rows_codebook_exists.len() == 0 {
+            anyhow::bail!("Codebook table {full_codebook_table_name} does not exist");
+        }
+
         let rows_c = transaction.query(
-            &format!(
-                "SELECT count(*) FROM _lantern_internal._codebook_{table_name}_{column_name} WHERE subvector_id = 0;",
-                table_name = args.table,
-                column_name = args.column,
-            ),
+            &format!("SELECT COUNT(*) FROM {full_codebook_table_name} WHERE subvector_id = 0;"),
             &[],
         )?;
         let rows_sv = transaction.query(
-            &format!(
-                "SELECT count(*) FROM _lantern_internal._codebook_{table_name}_{column_name} WHERE centroid_id = 0;",
-                table_name = args.table,
-                column_name = args.column,
-            ),
+            &format!("SELECT COUNT(*) FROM {full_codebook_table_name} WHERE centroid_id = 0;"),
             &[],
         )?;
 
@@ -182,8 +188,9 @@ pub fn create_usearch_index(
             ),
             &[],
         )?;
+
         logger.info(&format!(
-            "codebook has {} rows - {num_centroids} centroids and {num_subvectors} subvectors",
+            "Codebook has {} rows - {num_centroids} centroids and {num_subvectors} subvectors",
             rows.len()
         ));
 
diff --git a/lantern_extras/Cargo.toml b/lantern_extras/Cargo.toml
index f70ea44..e59e5d6 100644
--- a/lantern_extras/Cargo.toml
+++ b/lantern_extras/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lantern_extras"
-version = "0.1.3"
+version = "0.1.2"
 edition = "2021"
 
 [lib]