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authorDan Goodliffe <dan@randomdan.homeip.net>2016-02-26 20:47:35 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2016-02-26 20:47:35 +0000
commit203936297e449f0215641037736cc4d142fd4a60 (patch)
treee2b8ea54713c563cb545a91f791e929b3e19a704 /libpqpp/pq-modifycommand.cpp
parentReuse prepared statements (diff)
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Prepare statement upfront during construction
Diffstat (limited to 'libpqpp/pq-modifycommand.cpp')
-rw-r--r--libpqpp/pq-modifycommand.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/libpqpp/pq-modifycommand.cpp b/libpqpp/pq-modifycommand.cpp
index e59908e..e140f0a 100644
--- a/libpqpp/pq-modifycommand.cpp
+++ b/libpqpp/pq-modifycommand.cpp
@@ -7,7 +7,7 @@ PQ::ModifyCommand::ModifyCommand(Connection * conn, const std::string & sql, uns
DB::Command(sql),
DB::ModifyCommand(sql),
PQ::Command(conn, sql, no),
- hash(std::hash<std::string>()(sql))
+ pstmt(prepare()->second)
{
}
@@ -18,6 +18,7 @@ PQ::ModifyCommand::~ModifyCommand()
PQ::Connection::PreparedStatements::const_iterator
PQ::ModifyCommand::prepare() const
{
+ auto hash(std::hash<std::string>()(sql));
auto i = c->preparedStatements.find(hash);
if (i != c->preparedStatements.end()) {
return i;
@@ -33,7 +34,7 @@ PQ::ModifyCommand::prepare() const
unsigned int
PQ::ModifyCommand::execute(bool anc)
{
- PGresult * res = PQexecPrepared(c->conn, prepare()->second.c_str(), values.size(), &values.front(), &lengths.front(), NULL, 0);
+ PGresult * res = PQexecPrepared(c->conn, pstmt.c_str(), values.size(), &values.front(), &lengths.front(), NULL, 0);
c->checkResult(res, PGRES_COMMAND_OK, PGRES_TUPLES_OK);
unsigned int rows = atoi(PQcmdTuples(res));
PQclear(res);