auto_increment for heap tables

test case


heap/hp_create.c:
  auto_increment for heap tables
heap/hp_hash.c:
  auto_increment for heap tables
heap/hp_info.c:
  auto_increment for heap tables
heap/hp_test1.c:
  auto_increment for heap tables
heap/hp_test2.c:
  auto_increment for heap tables
heap/hp_update.c:
  auto_increment for heap tables
heap/hp_write.c:
  auto_increment for heap tables
include/heap.h:
  auto_increment for heap tables
mysql-test/r/create.result:
  auto_increment for heap tables
mysql-test/t/create.test:
  auto_increment for heap tables
sql/ha_heap.cc:
  auto_increment for heap tables
sql/ha_heap.h:
  auto_increment for heap tables

1 files changed, 48 insertions, 0 deletions

diff --git a/heap/hp_hash.c b/heap/hp_hash.c
index 4f7dc956cba..0145e0d503c 100644
--- a/heap/hp_hash.c
+++ b/heap/hp_hash.c
@@ -537,3 +537,51 @@ my_bool hp_if_null_in_key(HP_KEYDEF *keydef, const byte *record)
   }
   return 0;
 }
+
+void heap_update_auto_increment(HP_INFO *info, const byte *record)
+{
+  ulonglong value;
+  HA_KEYSEG *keyseg= info->s->keydef[info->s->auto_key - 1].seg;
+  const uchar *key=  (uchar*) record + keyseg->start;
+
+  switch (info->s->auto_key_type) {
+  case HA_KEYTYPE_INT8:
+  case HA_KEYTYPE_BINARY:
+    value= (ulonglong) *(uchar*) key;
+    break;
+  case HA_KEYTYPE_SHORT_INT:
+  case HA_KEYTYPE_USHORT_INT:
+    value= (ulonglong) uint2korr(key);
+    break;
+  case HA_KEYTYPE_LONG_INT:
+  case HA_KEYTYPE_ULONG_INT:
+    value= (ulonglong) uint4korr(key);
+    break;
+  case HA_KEYTYPE_INT24:
+  case HA_KEYTYPE_UINT24:
+    value= (ulonglong) uint3korr(key);
+    break;
+  case HA_KEYTYPE_FLOAT:			/* This shouldn't be used */
+  {
+    float f_1;
+    float4get(f_1, key);
+    value= (ulonglong) f_1;
+    break;
+  }
+  case HA_KEYTYPE_DOUBLE:			/* This shouldn't be used */
+  {
+    double f_1;
+    float8get(f_1, key);
+    value= (ulonglong) f_1;
+    break;
+  }
+  case HA_KEYTYPE_LONGLONG:
+  case HA_KEYTYPE_ULONGLONG:
+    value= uint8korr(key);
+    break;
+  default:
+    value= 0;					/* Error */
+    break;
+  }
+  set_if_bigger(info->s->auto_increment, value);
+}