Github user selvaganesang commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/508#discussion_r65442216
--- Diff:
core/conn/jdbcT4/src/main/java/org/trafodion/jdbc/t4/T4DatabaseMetaData.java ---
@@ -3092,27 +3090,40 @@ public boolean
dataDefinitionIgnoredInTransactions() throws SQLException {
// dropped from the search."
procedureNamePattern = "%";
+ }else{
+ procedureNamePattern =
sqlValueFormat(procedureNamePattern);
+ }
+ MetadataHolder mdHolder = this.connection_.mdHolder_;
+ int retryCnt = 0;
+ while(retryCnt < 3 ) {
+ try {
+ PreparedStatement ps =
mdHolder.getPStatement(SQL_API_SQLPROCEDURES, this.connection_);
+ ps.setObject(1, schemaPattern);
+ ps.setObject(2, procedureNamePattern);
+ return ps.executeQuery();
+ } catch (SQLException e) {
+
mdHolder.removePStatement(SQL_API_SQLPROCEDURES);
+ ++retryCnt;
+ if( retryCnt >= 3 ) {
+ throw e;
+ }
+ }
}
- getSQLCatalogsInfo(connection_.getServerHandle(), // Server
Handle
- SQL_API_SQLPROCEDURES, // catalogAPI
- catalogNm, // catalog
- schemaNm, // schema
- procedureNamePattern, // table name
- "", // tableTypeList
- "", // cloumn name
- (int) 0, // cloumnType
- (int) 0, // rowIdScope
- (long) 0, // nullable
- (int) 0, // uniqueness
- (int) 0, // accuracy
- (short) 0, // sqlType
- (int) 0, // metadataId
- "", // fcatalog
- "", // fschema
- "" // ftable
- );
+ return null;
+ }
--- End diff --
I strongly feel that catalog API should be encapsulated in the server side.
It would become hard to manage on the client side when there are changes in the
metadata. Can you please highlight the expected difference between the drivers.
We can handle it on case-by-case basis and possibly map it on the client side.
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