update lua binding library to align with tidesdb 8; i've extended tes…

src/tidesdb.lua

@@ -64,6 +64,7 @@ ffi.cdef[[
         uint64_t min_disk_space;
         int l1_file_count_trigger;
         int l0_queue_stall_threshold;
+        int use_btree;
     } tidesdb_column_family_config_t;
 
     typedef struct {
@@ -90,6 +91,10 @@ ffi.cdef[[
         uint64_t* level_key_counts;
         double read_amp;
         double hit_rate;
+        int use_btree;
+        uint64_t btree_total_nodes;
+        uint32_t btree_max_height;
+        double btree_avg_height;
     } tidesdb_stats_t;
 
     typedef struct {
@@ -358,6 +363,7 @@ function tidesdb.default_column_family_config()
         min_disk_space = tonumber(c_config.min_disk_space),
         l1_file_count_trigger = c_config.l1_file_count_trigger,
         l0_queue_stall_threshold = c_config.l0_queue_stall_threshold,
+        use_btree = c_config.use_btree ~= 0,
     }
 end
 
@@ -383,6 +389,7 @@ local function config_to_c_struct(config)
     c_config.min_disk_space = config.min_disk_space or 100 * 1024 * 1024
     c_config.l1_file_count_trigger = config.l1_file_count_trigger or 4
     c_config.l0_queue_stall_threshold = config.l0_queue_stall_threshold or 20
+    c_config.use_btree = config.use_btree and 1 or 0
 
     local name = config.comparator_name or "memcmp"
     local name_len = math.min(#name, 63)
@@ -577,6 +584,7 @@ function ColumnFamily:get_stats()
             min_disk_space = tonumber(c_cfg.min_disk_space),
             l1_file_count_trigger = c_cfg.l1_file_count_trigger,
             l0_queue_stall_threshold = c_cfg.l0_queue_stall_threshold,
+            use_btree = c_cfg.use_btree ~= 0,
         }
     end
 
@@ -600,6 +608,10 @@ function ColumnFamily:get_stats()
         level_key_counts = level_key_counts,
         read_amp = c_stats.read_amp,
         hit_rate = c_stats.hit_rate,
+        use_btree = c_stats.use_btree ~= 0,
+        btree_total_nodes = tonumber(c_stats.btree_total_nodes),
+        btree_max_height = c_stats.btree_max_height,
+        btree_avg_height = c_stats.btree_avg_height,
     }
 
     lib.tidesdb_free_stats(stats_ptr[0])
@@ -988,6 +1000,7 @@ function tidesdb.load_config_from_ini(ini_file, section_name)
         min_disk_space = tonumber(c_config.min_disk_space),
         l1_file_count_trigger = c_config.l1_file_count_trigger,
         l0_queue_stall_threshold = c_config.l0_queue_stall_threshold,
+        use_btree = c_config.use_btree ~= 0,
     }
 end
 
@@ -998,6 +1011,6 @@ function tidesdb.save_config_to_ini(ini_file, section_name, config)
 end
 
 -- Version
-tidesdb._VERSION = "0.2.0"
+tidesdb._VERSION = "0.3.0"
 
 return tidesdb

tests/test_tidesdb.lua

@@ -403,6 +403,85 @@ function tests.test_update_runtime_config()
     print("PASS: test_update_runtime_config")
 end
 
+function tests.test_use_btree_config()
+    local path = "./test_db_btree"
+    cleanup_db(path)
+
+    local db = tidesdb.TidesDB.open(path)
+
+    -- Create column family with use_btree enabled
+    local cf_config = tidesdb.default_column_family_config()
+    cf_config.use_btree = true
+    db:create_column_family("btree_cf", cf_config)
+
+    local cf = db:get_column_family("btree_cf")
+
+    -- Insert some data
+    local txn = db:begin_txn()
+    txn:put(cf, "key1", "value1")
+    txn:put(cf, "key2", "value2")
+    txn:commit()
+    txn:free()
+
+    -- Verify use_btree in stats
+    local stats = cf:get_stats()
+    assert_true(stats.use_btree ~= nil, "use_btree should exist in stats")
+    assert_true(stats.config.use_btree ~= nil, "use_btree should exist in config")
+
+    -- Verify B+tree stats fields exist
+    assert_true(stats.btree_total_nodes ~= nil, "btree_total_nodes should exist")
+    assert_true(stats.btree_max_height ~= nil, "btree_max_height should exist")
+    assert_true(stats.btree_avg_height ~= nil, "btree_avg_height should exist")
+
+    -- Read back data to verify it works
+    local read_txn = db:begin_txn()
+    local value1 = read_txn:get(cf, "key1")
+    local value2 = read_txn:get(cf, "key2")
+    assert_eq(value1, "value1", "get key1 with btree")
+    assert_eq(value2, "value2", "get key2 with btree")
+    read_txn:free()
+
+    db:drop_column_family("btree_cf")
+    db:close()
+    cleanup_db(path)
+    print("PASS: test_use_btree_config")
+end
+
+function tests.test_btree_stats_extended()
+    local path = "./test_db_btree_stats"
+    cleanup_db(path)
+
+    local db = tidesdb.TidesDB.open(path)
+
+    -- Create column family without btree (default)
+    local cf_config = tidesdb.default_column_family_config()
+    cf_config.use_btree = false
+    db:create_column_family("block_cf", cf_config)
+
+    local cf = db:get_column_family("block_cf")
+
+    -- Insert data
+    local txn = db:begin_txn()
+    txn:put(cf, "key1", "value1")
+    txn:commit()
+    txn:free()
+
+    -- Verify stats
+    local stats = cf:get_stats()
+    assert_eq(stats.use_btree, false, "use_btree should be false for block-based CF")
+    assert_eq(stats.config.use_btree, false, "config.use_btree should be false")
+
+    -- B+tree stats should still exist but be zero/default for non-btree CF
+    assert_true(stats.btree_total_nodes ~= nil, "btree_total_nodes should exist")
+    assert_true(stats.btree_max_height ~= nil, "btree_max_height should exist")
+    assert_true(stats.btree_avg_height ~= nil, "btree_avg_height should exist")
+
+    db:drop_column_family("block_cf")
+    db:close()
+    cleanup_db(path)
+    print("PASS: test_btree_stats_extended")
+end
+
 -- Run all tests
 local function run_tests()
     print("Running TidesDB Lua tests...")

tidesdb-0.3.1-1.rockspec → tidesdb-0.4.0-1.rockspec

@@ -1,8 +1,8 @@
 package = "tidesdb"
-version = "0.3.1-1"
+version = "0.4.0-1"
 source = {
    url = "git://github.com/tidesdb/tidesdb-lua.git",
-   tag = "v0.3.1"
+   tag = "v0.4.0"
 }
 description = {
    summary = "Official Lua bindings for TidesDB - A high-performance embedded key-value storage engine",