update ddl and results

Author: wangmj17

hologres/ddl.sql

@@ -1,6 +1,32 @@
+set hg_experimental_enable_nullable_clustering_key = true;
 CREATE TABLE bluesky (
-    data JSONB NOT NULL
-);
+    data JSONB NOT NULL,
+    sort_key TEXT GENERATED ALWAYS AS (
+        -- col1: kind
+        CASE 
+            WHEN data ->> 'kind' IS NULL THEN '[NULL]'
+            ELSE '[VAL]' || (data ->> 'kind')
+        END || '|__COL1__|' ||
+
+        -- col2: operation
+        CASE 
+            WHEN data -> 'commit' ->> 'operation' IS NULL THEN '[NULL]'
+            ELSE '[VAL]' || (data -> 'commit' ->> 'operation')
+        END || '|__COL2__|' ||
+
+        -- col3: collection
+        CASE 
+            WHEN data -> 'commit' ->> 'collection' IS NULL THEN '[NULL]'
+            ELSE '[VAL]' || (data -> 'commit' ->> 'collection')
+        END || '|__COL3__|' ||
+
+        -- col4: did
+        CASE 
+            WHEN data ->> 'did' IS NULL THEN '[NULL]'
+            ELSE '[VAL]' || (data ->> 'did')
+        END
+    ) STORED
+) WITH (clustering_key='sort_key');
 
 ALTER TABLE bluesky ALTER COLUMN data SET (enable_columnar_type = ON);
 CALL set_table_property('bluesky', 'dictionary_encoding_columns', 'data:auto');

hologres/results/hologres_bluesky_1000m.json

@@ -1,19 +1,19 @@
 {
   "system": "Alibaba Cloud Hologres",
   "version": "r4.0",
-  "date": "2025-09-12",
+  "date": "2025-10-09",
   "machine": "Hologres Instance 32CU",
   "retains_structure": "yes",
   "tags": [
   ],
   "dataset_size": 1000000000,
-  "num_loaded_documents": 993999604,
-  "total_size":  113935090070,
+  "num_loaded_documents": 996999604,
+  "total_size":  127917465027,
   "result": [
-	  [1.28344,0.387996,0.394197],
-[14.0496,12.3343,13.6941],
-[1.63458,0.75316,0.754978],
-[3.82664,2.58757,2.50737],
-[3.60571,2.67633,2.66443]
+	  [0.871867,0.372306,0.368595],
+[13.9744,12.3741,12.3773],
+[1.18064,0.62016,0.641407],
+[2.00502,1.59837,1.59216],
+[2.05533,1.71199,1.70547]
   ]
 }

hologres/results/hologres_bluesky_100m.json

@@ -1,19 +1,19 @@
 {
   "system": "Alibaba Cloud Hologres",
   "version": "r4.0",
-  "date": "2025-09-12",
+  "date": "2025-10-09",
   "machine": "Hologres Instance 32CU",
   "retains_structure": "yes",
   "tags": [
   ],
   "dataset_size": 100000000,
-  "num_loaded_documents":  97999984,
-  "total_size":  11157250421,
+  "num_loaded_documents":  99999984,
+  "total_size":  12601313624,
   "result": [
-	  [0.164415,0.060582,0.061967],
-[2.1726,1.81505,1.83729],
-[0.202728,0.096507,0.097319],
-[0.397231,0.249259,0.246972],
-[0.407714,0.265204,0.265106]
+	  [0.125652,0.058975,0.0578],
+[2.24972,1.85581,1.81485],
+[0.152823,0.081402,0.08157],
+[0.249986,0.217169,0.208558],
+[0.261454,0.218221,0.232391]
   ]
 }

hologres/results/hologres_bluesky_10m.json

@@ -1,19 +1,19 @@
 {
   "system": "Alibaba Cloud Hologres",
   "version": "r4.0",
-  "date": "2025-09-12",
+  "date": "2025-10-09",
   "machine": "Hologres Instance 32CU",
   "retains_structure": "yes",
   "tags": [
   ],
   "dataset_size": 10000000,
   "num_loaded_documents": 9999997,
-  "total_size":  1185315603,
+  "total_size":  1301202397,
   "result": [
-	  [0.041749,0.026402,0.025736],
-[0.349737,0.282813,0.301415],
-[0.053863,0.033616,0.033054],
-[0.0812,0.055007,0.056155],
-[0.089086,0.061353,0.059887]
+	  [0.039704,0.026725,0.02526],
+[0.316713,0.305841,0.26521],
+[0.045679,0.042317,0.031781],
+[0.061012,0.050997,0.049643],
+[0.070111,0.054236,0.053687]
   ]
 }

hologres/results/hologres_bluesky_1m.json

@@ -1,19 +1,19 @@
 {
   "system": "Alibaba Cloud Hologres",
   "version": "r4.0",
-  "date": "2025-09-12",
+  "date": "2025-10-09",
   "machine": "Hologres Instance 32CU",
   "retains_structure": "yes",
   "tags": [
   ],
   "dataset_size": 1000000,
   "num_loaded_documents": 1000000,
-  "total_size":  121403438,
+  "total_size":  134518668,
   "result": [
-	  [0.05821,0.024254,0.025168],
-[0.096473,0.05756,0.051771],
-[0.074038,0.025263,0.031265],
-[0.094472,0.035952,0.035384],
-[0.08237,0.047902,0.03876]
+	  [0.029467,0.021407,0.021018],
+[0.058642,0.045417,0.046737],
+[0.031809,0.023022,0.023018],
+[0.035425,0.026159,0.026751],
+[0.035892,0.028317,0.027894]
   ]
 }