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authormonty@mysql.com <>2004-07-12 08:20:24 +0300
committermonty@mysql.com <>2004-07-12 08:20:24 +0300
commit31fe2837f9c0579454cba635ee127536a6ac55ce (patch)
tree4b4523bbabccb4e51b85fc209e3274f249f85ef8 /sql/ha_berkeley.cc
parentfa7f63d46d033c1c1651d8f5155070e30c607023 (diff)
parent79b3b220be3e914bf2fded18a503895de212389a (diff)
downloadmariadb-git-31fe2837f9c0579454cba635ee127536a6ac55ce.tar.gz
Merge with 4.1
Diffstat (limited to 'sql/ha_berkeley.cc')
-rw-r--r--sql/ha_berkeley.cc29
1 files changed, 29 insertions, 0 deletions
diff --git a/sql/ha_berkeley.cc b/sql/ha_berkeley.cc
index e25640280a3..00df84e3797 100644
--- a/sql/ha_berkeley.cc
+++ b/sql/ha_berkeley.cc
@@ -340,6 +340,35 @@ const char **ha_berkeley::bas_ext() const
{ static const char *ext[]= { ha_berkeley_ext, NullS }; return ext; }
+ulong ha_berkeley::index_flags(uint idx, uint part, bool all_parts) const
+{
+ ulong flags= (HA_READ_NEXT | HA_READ_PREV | HA_READ_ORDER | HA_KEYREAD_ONLY
+ | HA_READ_RANGE);
+ for (uint i= all_parts ? 0 : part ; i <= part ; i++)
+ {
+ if (table->key_info[idx].key_part[i].field->type() == FIELD_TYPE_BLOB)
+ {
+ /* We can't use BLOBS to shortcut sorts */
+ flags&= ~(HA_READ_ORDER | HA_KEYREAD_ONLY | HA_READ_RANGE);
+ break;
+ }
+ switch (table->key_info[idx].key_part[i].field->key_type()) {
+ case HA_KEYTYPE_TEXT:
+ case HA_KEYTYPE_VARTEXT:
+ /*
+ As BDB stores only one copy of equal strings, we can't use key read
+ on these
+ */
+ flags&= ~HA_KEYREAD_ONLY;
+ break;
+ default: // Keep compiler happy
+ break;
+ }
+ }
+ return flags;
+}
+
+
static int
berkeley_cmp_hidden_key(DB* file, const DBT *new_key, const DBT *saved_key)
{