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Fix regression bug on "select max(length(nom)) from emp1" when:

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The emp1 table type is MYSQL
  nom is an indexed column
This commit is contained in:
Olivier Bertrand
2015-07-07 15:55:32 +02:00
parent f07359349f
commit 6114101344
1 changed files with 5 additions and 5 deletions
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10
storage/connect/tabmysql.cpp
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@@ -1058,12 +1058,13 @@ bool TDBMYSQL::ReadKey(PGLOBAL g, OPVAL op, const void *key, int len)
{
bool oom;
int oldlen = Query->GetLength();
PHC hc = To_Def->GetHandler();
if (op == OP_FIRST) {
if (op == OP_FIRST && hc->end_range) {
#ifdef _DEBUG
assert(!key);
#endif
key_range *end_key = &To_Def->GetHandler()->save_end_range;
key_range *end_key = &hc->save_end_range;
key = end_key->key;
len = end_key->length;
@@ -1078,21 +1079,20 @@ bool TDBMYSQL::ReadKey(PGLOBAL g, OPVAL op, const void *key, int len)
if (!key || op == OP_NEXT ||
Mode == MODE_UPDATE || Mode == MODE_DELETE) {
#if 0
if (!key && Mode == MODE_READX) {
// This is a false indexed read
m_Rc = Myc.ExecSQL(g, Query->GetStr());
Mode = MODE_READ;
return (m_Rc == RC_FX) ? true : false;
} // endif key
#endif // 0
return false;
} else {
if (Myc.m_Res)
Myc.FreeResult();
To_Def->GetHandler()->MakeKeyWhere(g, Query, op, '`', key, len);
if (hc->MakeKeyWhere(g, Query, op, '`', key, len))
return true;
if (To_CondFil) {
oom = Query->Append(" AND (");