Merge branch 'column_store'

Co-authored-by: wangt1xiuyi <13547954130@163.com>
Co-authored-by: yangqise7en <877793735@qq.com>
Co-authored-by: Zach41 <zach_41@163.com>

deps/oblib/unittest/lib/codec/test_fast_delta.cpp

@@ -0,0 +1,84 @@
+#include <vector>
+#include <memory>
+#include <limits>
+#include <random>
+#include <cmath>
+
+#include "lib/codec/ob_fast_delta.h"
+
+#include "gtest/gtest.h"
+
+namespace oceanbase
+{
+namespace common
+{
+
+int do_test() {
+    int N = 4096;
+    uint32_t * datain = (uint32_t *)malloc(N * sizeof(uint32_t));
+    uint32_t * buffer = (uint32_t *)malloc(N * sizeof(uint32_t));
+    uint32_t * recovdata = (uint32_t *)malloc(N * sizeof(uint32_t));
+
+
+    for (int length = 0; length <= N;) {
+        printf("length = %d \n", length);
+        for (uint32_t gap = 1; gap <= 387420489; gap *= 3) {
+            for (int k = 0; k < length; ++k)
+                datain[k] = gap * (k+1);
+            compute_deltas(datain, length, buffer, 0);
+            for (int k = 0; k < length; ++k) {
+                if(buffer[k] != gap) {
+                    printf("bug. buffer[%d]=%d expected %d \n",k,buffer[k],gap);
+                    return -1;
+                }
+            }
+
+            compute_prefix_sum(buffer, length, recovdata, 0);
+            for(int k = 0; k < length; ++k) {
+                if(datain[k] != recovdata[k]) {
+                    printf("bug.\n");
+                    return -1;
+                }
+            }
+            compute_deltas_inplace(datain, length, 0);
+            for (int k = 0; k < length; ++k) {
+                if(datain[k] != gap) {
+                    printf("bug.");
+                    return -1;
+                }
+            }
+            compute_prefix_sum_inplace(datain, length, 0);
+            for(int k = 0; k < length; ++k) {
+                if(datain[k] != recovdata[k]) {
+                    printf("bug.\n");
+                    return -1;
+                }
+            }
+        }
+
+        if (length < 128)
+            ++length;
+        else {
+            length *= 2;
+        }
+    }
+    free(datain);
+    free(buffer);
+    free(recovdata);
+    printf("Code looks good.\n");
+    return 0;
+}
+
+TEST(CompositeCodecTest, emptyArray)
+{
+  ASSERT_EQ(0, do_test());
+}
+
+} // namespace common
+} // namespace oceanbase
+
+int main(int argc, char **argv)
+{
+  ::testing::InitGoogleTest(&argc,argv);
+  return RUN_ALL_TESTS();
+}