fix misc

Author: zeromax007

README.md

@@ -152,6 +152,13 @@ SELECT '\x3a3000000100000000000000100000000100'::ROARINGBITMAP;
         <td>Retrun roaringbitmap cardinality between integer range with step.</td>
         <td>rb_cardinality(rb_build('{1,2,3,4,5}'),1,4,2)</td>
     </tr>
+    <tr>
+        <td>rb_cardinality</td>
+        <td>roraingbitmap<br>integer<br>integer<br>integer<br>integer<br>integer</td>
+        <td>bigint</td>
+        <td>Retrun roaringbitmap cardinality between integer range with step, in offset range.</td>
+        <td>rb_cardinality(rb_build('{1,2,3,4,5}'),1,4,2,1,3)</td>
+    </tr>
     <tr>
         <td>rb_cardinality</td>
         <td>roraingbitmap<br>integer<br>integer<br>integer<br>integer[]</td>

roaringbitmap--0.2.65.1--0.2.65.2.sql

@@ -57,7 +57,7 @@ CREATE
 DROP FUNCTION IF EXISTS rb_cardinality(roaringbitmap, integer, integer, integer, integer, integer);
 CREATE
   OR REPLACE FUNCTION rb_cardinality(roaringbitmap, integer, integer, integer, integer, integer) RETURNS BIGINT AS 'MODULE_PATHNAME',
-  'rb_cardinality_step_intval' LANGUAGE C STRICT IMMUTABLE;
+  'rb_cardinality_step_interval' LANGUAGE C STRICT IMMUTABLE;
 CREATE
   OR REPLACE FUNCTION rb_is_empty(roaringbitmap) RETURNS bool AS 'MODULE_PATHNAME',
   'rb_is_empty' LANGUAGE C STRICT IMMUTABLE;

roaringbitmap--0.2.65.2.sql

@@ -76,7 +76,7 @@ CREATE
   'rb_cardinality_step_array' LANGUAGE C STRICT IMMUTABLE;
 CREATE
   OR REPLACE FUNCTION rb_cardinality(roaringbitmap, integer, integer, integer, integer, integer) RETURNS BIGINT AS 'MODULE_PATHNAME',
-  'rb_cardinality_step_intval' LANGUAGE C STRICT IMMUTABLE;
+  'rb_cardinality_step_interval' LANGUAGE C STRICT IMMUTABLE;
 CREATE
   OR REPLACE FUNCTION rb_is_empty(roaringbitmap) RETURNS bool AS 'MODULE_PATHNAME',
   'rb_is_empty' LANGUAGE C STRICT IMMUTABLE;

roaringbitmap.c

@@ -417,8 +417,8 @@ Datum
     uint32_t min = PG_GETARG_INT32(1);
     uint32_t max = PG_GETARG_INT32(2);
     int step = PG_GETARG_INT32(3);
-    uint32_t start = PG_GETARG_INT32(4);
-    uint32_t end = PG_GETARG_INT32(5);
+    int start = PG_GETARG_INT32(4);
+    int end = PG_GETARG_INT32(5);
 
     if (step < 2)
         ereport(ERROR, (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE), errmsg("step must be greater than 1")));
@@ -439,7 +439,7 @@ Datum
     {
         if (p + step >= rmin)
         {
-            if (roaring_bitmap_range_cardinality(r1, p + start, p + end) > 0)
+            if (roaring_bitmap_range_cardinality(r1, p + start, p + end + 1) > 0)
                 card1++;
         }
         p += step;
@@ -478,7 +478,7 @@ Datum
     uint32_t rmin = roaring_bitmap_minimum(r1);
     uint32_t rmax = roaring_bitmap_maximum(r1);
 
-    max = max == -1 ? rmax : max;
+    max = max == -1 ? rmax : (rmax < max ? rmax : max);
     uint32_t p = min;
     int64 card1 = 0;
     while (p <= max)