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- Fix MDEV-10950. Null values not retrieved for numeric types.

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Now the null is tested using the result set getObject method.
  modified:   storage/connect/JdbcInterface.java
  modified:   storage/connect/jdbconn.cpp
  modified:   storage/connect/jdbconn.h
This commit is contained in:
Olivier Bertrand 2016-10-14 17:32:21 +02:00
parent e6c678c8a9
commit cb8e5ecbce
3 changed files with 29 additions and 15 deletions
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4
storage/connect/JdbcInterface.java
View file

@ -692,11 +692,11 @@ public class JdbcInterface {
return 0;
} // end of TimestampField
public String ObjectField(int n, String name) {
public Object ObjectField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getObject(n).toString() : rs.getObject(name).toString();
return (n > 0) ? rs.getObject(n) : rs.getObject(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch

39
storage/connect/jdbconn.cpp
View file

@ -512,7 +512,7 @@ JDBConn::JDBConn(PGLOBAL g, TDBJDBC *tdbp)
xqid = xuid = xid = grs = readid = fetchid = typid = errid = nullptr;
prepid = xpid = pcid = nullptr;
chrfldid = intfldid = dblfldid = fltfldid = bigfldid = nullptr;
datfldid = timfldid = tspfldid = nullptr;
objfldid = datfldid = timfldid = tspfldid = nullptr;
//m_LoginTimeout = DEFAULT_LOGIN_TIMEOUT;
//m_QueryTimeout = DEFAULT_QUERY_TIMEOUT;
//m_UpdateOptions = 0;
@ -1167,9 +1167,10 @@ void JDBConn::Close()
/***********************************************************************/
void JDBConn::SetColumnValue(int rank, PSZ name, PVAL val)
{
PGLOBAL& g = m_G;
jint ctyp;
jstring cn, jn = nullptr;
PGLOBAL& g = m_G;
jint ctyp;
jstring cn, jn = nullptr;
jobject jb = nullptr;
if (rank == 0)
if (!name || (jn = env->NewStringUTF(name)) == nullptr) {
@ -1185,21 +1186,32 @@ void JDBConn::SetColumnValue(int rank, PSZ name, PVAL val)
longjmp(g->jumper[g->jump_level], TYPE_AM_JDBC);
} // endif Check
if (val->GetNullable())
if (!gmID(g, objfldid, "ObjectField", "(ILjava/lang/String;)Ljava/lang/Object;")) {
jb = env->CallObjectMethod(job, objfldid, (jint)rank, jn);
if (jb == nullptr) {
val->Reset();
val->SetNull(true);
goto chk;
} // endif job
} // endif objfldid
switch (ctyp) {
case 12: // VARCHAR
case -1: // LONGVARCHAR
case 1: // CHAR
if (!gmID(g, chrfldid, "StringField", "(ILjava/lang/String;)Ljava/lang/String;")) {
if (jb)
cn = (jstring)jb;
else if (!gmID(g, chrfldid, "StringField", "(ILjava/lang/String;)Ljava/lang/String;"))
cn = (jstring)env->CallObjectMethod(job, chrfldid, (jint)rank, jn);
else
cn = nullptr;
if (cn) {
const char *field = env->GetStringUTFChars(cn, (jboolean)false);
val->SetValue_psz((PSZ)field);
} else {
val->Reset();
val->SetNull(true);
} // endif cn
if (cn) {
const char *field = env->GetStringUTFChars(cn, (jboolean)false);
val->SetValue_psz((PSZ)field);
} else
val->Reset();
@ -1271,6 +1283,7 @@ void JDBConn::SetColumnValue(int rank, PSZ name, PVAL val)
val->Reset();
} // endswitch Type
chk:
if (Check()) {
if (rank == 0)
env->DeleteLocalRef(jn);

1
storage/connect/jdbconn.h
View file

@ -165,6 +165,7 @@ protected:
jmethodID xpid; // The ExecutePrep method ID
jmethodID pcid; // The ClosePrepStmt method ID
jmethodID errid; // The GetErrmsg method ID
jmethodID objfldid; // The ObjectField method ID
jmethodID chrfldid; // The StringField method ID
jmethodID intfldid; // The IntField method ID
jmethodID dblfldid; // The DoubleField method ID