问题描述
我遇到了SNow-odbc驱动程序问题，以收集表中所有列的元数据；
A>从以下位置下载odbc驱动程序 https://sfc-repo.snowflakecomputing.com/odbc/linux/2.21.6/snowflake_linux_x8664_odbc-2.21.6.tgz
B>在雪花站点中使用doc安装和配置odbc驱动程序： https://docs.snowflake.com/en/user-guide/odbc-linux.html
我自动使用unixodbc_setup.sh安装它，并且仅更新SF_ACCOUNT信息，在/etc/odbc.ini中配置数据库和仓库值
c>使用运行良好的isql测试驱动程序
[root@sflake1 lib]# isql -v sNowflake user password
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
sql> select * from test_vch
+-----------+-----+--------------------------------------------------+
| V10 | V100 | V255 |
+-----------+------------------+----------------+
| v10 | v100 | v255 |
| a | b | c |
| aa | bb | cc |
+-----------+---------------+
sqlRowCount returns 3
3 rows fetched
sql> quit;
d>我尝试使用sqlCOLUMNS API获取列； 像下面那样实现经过测试的C代码：
RETCODE getColumns(sqlHSTMT hstmt,sqlCHAR* tablename)
{
sqlRETURN rc;
sqlCHAR szSchema[STR_LEN];
sqlCHAR szCatalog[STR_LEN];
sqlCHAR szColumnName[STR_LEN];
sqlCHAR szTableName[STR_LEN];
sqlCHAR szTypeName[STR_LEN];
sqlCHAR szRemarks[REM_LEN];
sqlCHAR szColumnDefault[STR_LEN];
sqlCHAR szIsNullable[STR_LEN];
sqlINTEGER ColumnSize;
sqlINTEGER BufferLength;
sqlINTEGER CharOctetLength;
sqlINTEGER OrdinalPosition;
sqlSMALLINT DataType;
sqlSMALLINT DecimalDigits;
sqlSMALLINT NumPrecRadix;
sqlSMALLINT Nullable;
sqlSMALLINT sqlDataType;
sqlSMALLINT DatetimeSubtypeCode;
sqlLEN cbCatalog;
sqlLEN cbSchema;
sqlLEN cbTableName;
sqlLEN cbColumnName;
sqlLEN cbDataType;
sqlLEN cbTypeName;
sqlLEN cbColumnSize;
sqlLEN cbBufferLength;
sqlLEN cbDecimalDigits;
sqlLEN cbNumPrecRadix;
sqlLEN cbNullable;
sqlLEN cbRemarks;
sqlLEN cbColumnDefault;
sqlLEN cbsqlDataType;
sqlLEN cbDatetimeSubtypeCode;
sqlLEN cbCharOctetLength;
sqlLEN cbOrdinalPosition;
sqlLEN cbIsNullable;
sqlLEN numRecs = 0;
sqlCHAR sqlState[6],sqlStmt[100],Msg[sql_MAX_MESSAGE_LENGTH];
sqlINTEGER NativeError;
sqlSMALLINT i,MsgLen;
rc = sqlColumns(hstmt,NULL,(sqlCHAR*)"PUBLIC",sql_NTS,tablename,0);
if (rc == sql_SUCCESS || rc == sql_SUCCESS_WITH_INFO) {
sqlBindCol(hstmt,1,sql_C_CHAR,szCatalog,STR_LEN,&cbCatalog);
sqlBindCol(hstmt,2,szSchema,&cbSchema);
sqlBindCol(hstmt,3,szTableName,&cbTableName);
sqlBindCol(hstmt,4,szColumnName,&cbColumnName);
sqlBindCol(hstmt,5,sql_C_SSHORT,&DataType,&cbDataType);
sqlBindCol(hstmt,6,szTypeName,&cbTypeName);
sqlBindCol(hstmt,7,sql_C_SLONG,&ColumnSize,&cbColumnSize);
sqlBindCol(hstmt,8,&BufferLength,&cbBufferLength);
sqlBindCol(hstmt,9,&DecimalDigits,&cbDecimalDigits);
sqlBindCol(hstmt,10,&NumPrecRadix,&cbNumPrecRadix);
sqlBindCol(hstmt,11,&Nullable,&cbNullable);
sqlBindCol(hstmt,12,szRemarks,REM_LEN,&cbRemarks);
sqlBindCol(hstmt,13,szColumnDefault,&cbColumnDefault);
sqlBindCol(hstmt,14,&sqlDataType,&cbsqlDataType);
sqlBindCol(hstmt,15,&DatetimeSubtypeCode,&cbDatetimeSubtypeCode);
sqlBindCol(hstmt,16,&CharOctetLength,&cbCharOctetLength);
sqlBindCol(hstmt,17,&OrdinalPosition,&cbOrdinalPosition);
sqlBindCol(hstmt,18,szIsNullable,&cbIsNullable);
}
while (sql_SUCCESS == rc) {
rc = sqlFetch(hstmt);
if (rc == sql_NO_DATA_FOUND){
printf("sql_NO_DATA_FOUND:All result done...");
break;
}
else if(rc != sql_SUCCESS){
sqlGetDiagField(sql_HANDLE_STMT,hstmt,sql_DIAG_NUMBER,&numRecs,0);
// Get the status records.
i = 1;
while (i <= numRecs && (rc = sqlGetDiagRec(sql_HANDLE_STMT,i,sqlState,&NativeError,Msg,sizeof(Msg),&MsgLen)) != sql_NO_DATA) {
printf("sqlState:%s\n",sqlState); <------ Will show errors here
printf("NativeError:%d\n",NativeError);
printf("Msg:%s\n",Msg);
i++;
}
break;
}
printf("szColumnName=%s,szTypeName=%s,DataType=%d,ColumnSize=precision=%d",DataType,ColumnSize);
}
sqlFreeStmt(hstmt,sql_UNBIND);
sqlFreeStmt(hstmt,sql_CLOSE);
return rc;
}
sqlState:S1000
NativeError:6
Msg:[SNowflake][SNowflake] (6)
Assertion failure: USER_DEFINED_TYPE_type_unsupported
odbc.ini，odbcinst.ini和simba.sNowflake.ini如下：
[root@sflake1 log]# more /etc/odbc.ini
[sNowflake]
Description=SNowflakeDB
Driver=SNowflakeDSIIDriver
Locale=en-US
SERVER=cy72957.us-east-2.aws.sNowflakecomputing.com
PORT=443
SSL=on
ACCOUNT=cy72957.us-east-2.aws
database=testdbu
Warehouse=COmpuTE_WH
[root@sflake1 log]# more /etc/odbcinst.ini
# Example driver deFinitions
# Driver from the postgresql-odbc package
# Setup from the unixODBC package
[Postgresql]
Description = ODBC for Postgresql
Driver = /usr/lib/psqlodbcw.so
Setup = /usr/lib/libodbcpsqlS.so
Driver64 = /usr/lib64/psqlodbcw.so
Setup64 = /usr/lib64/libodbcpsqlS.so
FileUsage = 1
# Driver from the mysql-connector-odbc package
# Setup from the unixODBC package
[MysqL]
Description = ODBC for MysqL
Driver = /usr/lib/libmyodbc5.so
Setup = /usr/lib/libodbcmyS.so
Driver64 = /usr/lib64/libmyodbc5.so
Setup64 = /usr/lib64/libodbcmyS.so
FileUsage = 1
[SNowflakeDSIIDriver]
APILevel=1
ConnectFunctions=YYY
Description=SNowflake DSII
Driver=/root/sNowflake/sNowflake_odbc/lib/libSNowflake.so
DriverODBCVer=03.52
sqlLevel=1
[root@sflake1 lib]# more simba.sNowflake.ini
# To use this INI file,replace [INSTALLDIR] with the
# directory the tarball was extracted to.
[Driver]
ANSIENCODING=UTF-8
## Note that this default DriverManagerEncoding of UTF-32 is for iODBC. unixODBC uses UTF-16 by default.
## If unixODBC was compiled with -Dsql_WCHART_CONVERT,then UTF-32 is the correct value.
## Execute 'odbc_config --cflags' to determine if you need UTF-32 or UTF-16 on unixODBC
DriverManagerEncoding=UTF-16
DriverLocale=en-US
ErrorMessagesPath=/root/sNowflake/sNowflake_odbc/ErrorMessages/
LogLevel=0
LogNamespace=
LogPath=/root/sNowflake/sNowflake_odbc/log
CURLVerboseMode=false
CABundleFile=/path/to/cacert.pem
## - Uncomment the ODBCInstLib corresponding to the Driver Manager being used.
## - Note that the path to your ODBC Driver Manager must be specified in LD_LIBRARY_PATH (LIBPATH for AIX,DYLD_LIBRARY_PATH for Darwin).
## - Note that AIX has a different format for specifying its shared libraries.
# Generic ODBCInstLib
# iODBC
#ODBCInstLib=libiodbcinst.so.2
# SimbaDM / unixODBC
#ODBCInstLib=libodbcinst.so
# Darwin specific ODBCInstLib
# iODBC
#ODBCInstLib=libiodbcinst.dylib
# AIX specific ODBCInstLib
# iODBC
#ODBCInstLib=libiodbcinst.a(libiodbcinst.so.2)
# SimbaDM
#ODBCInstLib=libodbcinst.a(odbcinst.so)
# unixODBC
ODBCInstLib=/usr/lib64/libodbcinst.so
CABundleFile=/root/sNowflake/sNowflake_odbc/lib/cacert.pem
解决方法
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