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postgis: for an empty table (with null results for extent) return early rather than allowing and printing a lexical cast failure

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This commit is contained in:
Dane Springmeyer 2011-11-20 16:41:47 -08:00
parent 3b72597f1d
commit 4ab17c9690
1 changed files with 6 additions and 6 deletions
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12
plugins/input/postgis/postgis_datasource.cpp
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@ -665,15 +665,15 @@ box2d<double> postgis_datasource::envelope() const
}
*/
shared_ptr<ResultSet> rs=conn->executeQuery(s.str());
if (rs->next())
shared_ptr<ResultSet> rs = conn->executeQuery(s.str());
if (rs->next() && !rs->isNull(0))
{
try
{
double lox=lexical_cast<double>(rs->getValue(0));
double loy=lexical_cast<double>(rs->getValue(1));
double hix=lexical_cast<double>(rs->getValue(2));
double hiy=lexical_cast<double>(rs->getValue(3));
double lox = lexical_cast<double>(rs->getValue(0));
double loy = lexical_cast<double>(rs->getValue(1));
double hix = lexical_cast<double>(rs->getValue(2));
double hiy = lexical_cast<double>(rs->getValue(3));
extent_.init(lox,loy,hix,hiy);
extent_initialized_ = true;
}