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ndb: wl-1893: range scanning backwards, ndb kernel

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This commit is contained in:
pekka@mysql.com
2004-12-17 10:20:18 +01:00
parent 4ef4272e2c
commit b2f164b4b4
19 changed files with 272 additions and 66 deletions
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23
ndb/tools/select_all.cpp
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@@ -34,13 +34,14 @@ int scanReadRecords(Ndb*,
bool headers,
bool useHexFormat,
char delim,
bool orderby);
bool orderby,
bool descending);
static const char* opt_connect_str= 0;
static const char* _dbname = "TEST_DB";
static const char* _delimiter = "\t";
static int _unqualified, _header, _parallelism, _useHexFormat, _lock,
_order;
_order, _descending;
static struct my_option my_long_options[] =
{
@@ -57,6 +58,9 @@ static struct my_option my_long_options[] =
{ "order", 'o', "Sort resultset according to index",
(gptr*) &_order, (gptr*) &_order, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0 },
{ "descending", 'z', "Sort descending (requires order flag)",
(gptr*) &_descending, (gptr*) &_descending, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0 },
{ "header", 'h', "Print header",
(gptr*) &_header, (gptr*) &_header, 0,
GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0 },
@@ -151,6 +155,11 @@ int main(int argc, char** argv){
return NDBT_ProgramExit(NDBT_WRONGARGS);
}
if (_descending && ! _order) {
ndbout << " Descending flag given without order flag" << endl;
return NDBT_ProgramExit(NDBT_WRONGARGS);
}
if (scanReadRecords(&MyNdb,
pTab,
pIdx,
@@ -158,7 +167,7 @@ int main(int argc, char** argv){
_lock,
_header,
_useHexFormat,
(char)*_delimiter, _order) != 0){
(char)*_delimiter, _order, _descending) != 0){
return NDBT_ProgramExit(NDBT_FAILED);
}
@@ -173,7 +182,7 @@ int scanReadRecords(Ndb* pNdb,
int _lock,
bool headers,
bool useHexFormat,
char delimiter, bool order){
char delimiter, bool order, bool descending){
int retryAttempt = 0;
const int retryMax = 100;
@@ -225,13 +234,13 @@ int scanReadRecords(Ndb* pNdb,
break;
case 3:
rs = pIOp->readTuples(NdbScanOperation::LM_CommittedRead, 0, parallel,
true);
true, descending);
break;
case 4:
rs = pIOp->readTuples(NdbScanOperation::LM_Read, 0, parallel, true);
rs = pIOp->readTuples(NdbScanOperation::LM_Read, 0, parallel, true, descending);
break;
case 5:
rs = pIOp->readTuples(NdbScanOperation::LM_Exclusive, 0, parallel, true);
rs = pIOp->readTuples(NdbScanOperation::LM_Exclusive, 0, parallel, true, descending);
break;
case 0:
default: