Lng32 HSSqTableDef::getColumnNames()
{
HSErrorCatcher errorCatcher(retcode_, - UERR_UNABLE_TO_DESCRIBE_COLUMN_NAMES, "HSSqTableDef::DescribeColumnNames", TRUE);
HSFuncExecQuery("CONTROL QUERY DEFAULT DISPLAY_DIVISION_BY_COLUMNS 'ON'");
Lng32 retcode = DescribeColumnNames();
HSFuncExecQuery("CONTROL QUERY DEFAULT DISPLAY_DIVISION_BY_COLUMNS RESET");
return retcode;
}
// -----------------------------------------------------------------------
// Construct a fully qualified table name.
// -----------------------------------------------------------------------
Lng32 AddTableName( const hs_table_type type
, const char *table
, const char *schema
, const char *catalog
)
{
HSGlobalsClass *hs_globals = GetHSContext();
NAString catName, schName, objName;
NAString extName;
NAString defaultCat, defaultSch;
NAString userLocation;
Lng32 retcode = 0;
hs_globals->tableType = type;
HSLogMan *LM = HSLogMan::Instance();
// SET MPLOC is converted to CQD (setting values for default
// attributes MP_SYSTEM, MP_VOLUME, MP_SUBVOLUME). It does not
// update the global MPLOC value stored in SqlParser_MPLOC. The
// following updates the global MPLOC value to be consistent with
// the default attribute values set by SET MPLOC/CQD.
ActiveSchemaDB()->getDefaults().getSqlParser_NADefaults();
if (type == GUARDIAN_TABLE)
{
if (*table == '$')
{ // Qualify with system name.
extName = SqlParser_MPLOC.getSystemName();
extName += ".";
extName += table;
}
else
extName = table;
hs_globals->tableFormat = SQLMP;
}
else
{
// When CQD DEFAULT_SCHEMA_ACCESS_ONLY is on,
// users cannot update stats on tables not in the default/public schemas.
if ( schema &&
ActiveSchemaDB()->getDefaults().getToken(DEFAULT_SCHEMA_ACCESS_ONLY)==DF_ON )
{
SchemaName objSchName;
NAString curSchName(schema);
NAString curCatName;
objSchName.setSchemaName(curSchName);
if (catalog)
{
curCatName = catalog;
objSchName.setCatalogName(curCatName);
}
else
curCatName = ActiveSchemaDB()->getDefaultSchema().getCatalogName();
// If the schema is neither default nor public,
// issue inaccessible error.
if (!objSchName.matchDefaultPublicSchema())
{
NAString dataObj(curCatName);
if (!dataObj.isNull()) dataObj += ".";
dataObj += curSchName + ".";
dataObj += table;
HSFuncMergeDiags(-UERR_OBJECT_INACCESSIBLE, dataObj.data());
retcode = -1;
HSHandleError(retcode);
}
}
if (catalog)
catName = catalog;
else
{
// LCOV_EXCL_START :nsk
if (SqlParser_NAMETYPE == DF_NSK)
{
catName = SqlParser_MPLOC.getSysDotVol();
hs_globals->tableType = GUARDIAN_TABLE;
hs_globals->tableFormat = SQLMP;
}
else
// LCOV_EXCL_STOP
catName = ActiveSchemaDB()->getDefaultSchema().getCatalogName();
}
if (schema)
schName = schema;
else
{
// LCOV_EXCL_START :nsk
if (SqlParser_NAMETYPE == DF_NSK)
{
schName = SqlParser_MPLOC.getSubvolName();
hs_globals->tableFormat = SQLMP;
}
else
// LCOV_EXCL_STOP
schName = ActiveSchemaDB()->getDefaultSchema().getSchemaName();
}
objName = table;
extName = catName + "." + schName + "." + objName;
}
// LCOV_EXCL_START :nsk
if (hs_globals->tableFormat == SQLMP)
{
ComMPLoc loc(extName, ComMPLoc::FILE);
if (loc.getFormat() == ComMPLoc::INVALID)
{
HSFuncMergeDiags(-UERR_OBJECT_INACCESSIBLE, extName);
retcode = -1;
HSHandleError(retcode);
}
catName = loc.getSysDotVol();
schName = loc.getSubvolName();
objName = loc.getFileName();
}
// LCOV_EXCL_STOP
hs_globals->objDef = NULL;
// Search in volatile schema first. If not found, search in regular cat/sch.
if ((CmpCommon::context()->sqlSession()->volatileSchemaInUse()) &&
(type != GUARDIAN_TABLE) &&
(! catalog))
{
// search using the volatile schema name.
NAString &volCatName = CmpCommon::context()->sqlSession()->volatileCatalogName();
NAString &volSchName = CmpCommon::context()->sqlSession()->volatileSchemaName();
NAString volObjName = table;
ComObjectName volIntName(volCatName, volSchName, volObjName,
COM_UNKNOWN_NAME,
ComAnsiNamePart::INTERNAL_FORMAT);
if (NOT volIntName.isValid())
{
LM->Log("***[ERROR] Unable to create an ObjectClass");
HSFuncMergeDiags(-UERR_OBJECT_INACCESSIBLE, extName);
retcode = -1;
HSHandleError(retcode);
}
if (LM->LogNeeded())
{
LM->Log("Searching in volatile schema, since catalog not specified.\n");
sprintf(LM->msg, "Checking volatile name (volIntName) %s.%s.%s\n",
volIntName.getCatalogNamePart().getInternalName().data(),
volIntName.getSchemaNamePart().getInternalName().data(),
volIntName.getObjectNamePart().getInternalName().data());
LM->Log(LM->msg);
}
hs_globals->objDef = HSTableDef::create(STMTHEAP,
volIntName,
hs_globals->tableType,
hs_globals->nameSpace);
if (NOT hs_globals->objDef->objExists(HSTableDef::MAX_INFO))
{
// now look into the regular schema
delete hs_globals->objDef;
hs_globals->objDef = NULL;
}
else
{
// if schema name was specified, validate that it is the
// current username.
if (schema)
{
QualifiedName qn(volObjName, schName);
if (NOT CmpCommon::context()->sqlSession()->validateVolatileQualifiedName(qn))
{
// table was found in the volatile schema but it is
// not a valid volatile name.
// Look for it in regular schema.
// error info was moved to CmpCommon::diags. Clear it.
CmpCommon::diags()->clear();
delete hs_globals->objDef;
hs_globals->objDef = NULL;
}
}
}
}
if (hs_globals->objDef == NULL)
{
ComObjectName intName(catName, schName, objName,
COM_UNKNOWN_NAME,
ComAnsiNamePart::INTERNAL_FORMAT);
if (NOT intName.isValid())
{
LM->Log("***[ERROR] Unable to create an ObjectClass");
HSFuncMergeDiags(-UERR_OBJECT_INACCESSIBLE, extName);
retcode = -1;
HSHandleError(retcode);
}
hs_globals->objDef = HSTableDef::create(STMTHEAP,
intName,
hs_globals->tableType,
hs_globals->nameSpace);
// try public schema if an object is not qualified and not found
if ((NOT schema) &&
(NOT hs_globals->objDef->objExists(HSTableDef::MAX_INFO)))
{
NAString pubSch = ActiveSchemaDB()->getDefaults().getValue(PUBLIC_SCHEMA_NAME);
ComSchemaName pubSchema(pubSch);
if (NOT pubSchema.getSchemaNamePart().isEmpty())
{
NAString pubSchName = pubSchema.getSchemaNamePart().getInternalName();
NAString pubCatName = (pubSchema.getCatalogNamePart().isEmpty() ?
catName:pubSchema.getCatalogNamePart().getInternalName());
ComObjectName pubIntName(pubCatName, pubSchName, objName,
COM_UNKNOWN_NAME, ComAnsiNamePart::INTERNAL_FORMAT);
if (pubIntName.isValid())
{
HSTableDef *pubObjDef = HSTableDef::create(STMTHEAP,
pubIntName,
hs_globals->tableType,
hs_globals->nameSpace);
if (pubObjDef->objExists(HSTableDef::MAX_INFO))
{
hs_globals->objDef = pubObjDef;
}
}
}
}
if (NOT hs_globals->objDef->objExists(HSTableDef::MAX_INFO))
{
HSFuncMergeDiags(-UERR_OBJECT_INACCESSIBLE, extName);
retcode = -1;
HSHandleError(retcode);
}
}
//10-040123-2660 We only support tables. We do not allow views.
// Tables can be metadata tables.
if ((hs_globals->objDef->getObjectType() != COM_BASE_TABLE_OBJECT) &&
(hs_globals->objDef->getObjectType() != COM_MV_OBJECT))
{
HSFuncMergeDiags(-UERR_INVALID_OBJECT, extName);
retcode = -1;
HSHandleError(retcode);
}
retcode = hs_globals->objDef->getColumnNames();
HSFuncExecQuery("CONTROL QUERY DEFAULT DISPLAY_DIVISION_BY_COLUMNS RESET");
HSHandleError(retcode);
hs_globals->tableFormat = hs_globals->objDef->getObjectFormat();
*hs_globals->catSch = hs_globals->objDef->getPrimaryLoc(HSTableDef::EXTERNAL_FORMAT);
*hs_globals->user_table = hs_globals->objDef->getObjectFullName();
hs_globals->tableFormat = hs_globals->objDef->getObjectFormat();
hs_globals->isHbaseTable = HSGlobalsClass::isHbaseCat(catName);
if (hs_globals->tableFormat == SQLMX)
{
// Determine the schema version for this MX table.
if (LM->LogNeeded())
{
sprintf(LM->msg, "\nCHECK SCHEMA VERSION FOR TABLE: %s\n",
hs_globals->user_table->data());
LM->Log(LM->msg);
}
HSGlobalsClass::schemaVersion = getTableSchemaVersion(hs_globals->user_table->data());
// LCOV_EXCL_START :rfi
if (HSGlobalsClass::schemaVersion == COM_VERS_UNKNOWN)
{
HSFuncMergeDiags(-UERR_INTERNAL_ERROR, "GET_SCHEMA_VERSION");
return -1;
}
// LCOV_EXCL_STOP
if (HSGlobalsClass::schemaVersion >= COM_VERS_2300)
HSGlobalsClass::autoInterval = CmpCommon::getDefaultLong(USTAT_AUTOMATION_INTERVAL);
if (LM->LogNeeded())
{
sprintf(LM->msg, "\nUpdateStats: TABLE: %s; SCHEMA VERSION: %d; AUTOMATION INTERVAL: %d\n",
hs_globals->user_table->data(),
HSGlobalsClass::schemaVersion, HSGlobalsClass::autoInterval);
LM->Log(LM->msg);
}
const char* period = strchr(hs_globals->catSch->data(), '.');
NAString catName(hs_globals->catSch->data(),
period - hs_globals->catSch->data());
NABoolean isHbaseOrHive = HSGlobalsClass::isHbaseCat(catName) ||
HSGlobalsClass::isHiveCat(catName);
*hs_globals->hstogram_table =
getHistogramsTableLocation(hs_globals->catSch->data(), FALSE);
if (isHbaseOrHive)
hs_globals->hstogram_table->append(".").append(HBASE_HIST_NAME);
else
hs_globals->hstogram_table->append(".HISTOGRAMS");
*hs_globals->hsintval_table =
getHistogramsTableLocation(hs_globals->catSch->data(), FALSE);
if (isHbaseOrHive)
hs_globals->hsintval_table->append(".").append(HBASE_HISTINT_NAME);
else
hs_globals->hsintval_table->append(".HISTOGRAM_INTERVALS");
}
else
{
// LCOV_EXCL_START :nsk
*hs_globals->hstogram_table = hs_globals->objDef->getCatalogLoc(HSTableDef::EXTERNAL_FORMAT);
hs_globals->hstogram_table->append(".HISTOGRM");
*hs_globals->hsintval_table = hs_globals->objDef->getCatalogLoc(HSTableDef::EXTERNAL_FORMAT);
hs_globals->hsintval_table->append(".HISTINTS");
// RESET CQDS:
HSFuncExecQuery("CONTROL QUERY DEFAULT DETAILED_STATISTICS RESET");
HSFuncExecQuery("CONTROL QUERY DEFAULT ALLOW_DP2_ROW_SAMPLING RESET");
HSFuncExecQuery("CONTROL QUERY DEFAULT POS RESET");
HSFuncExecQuery("CONTROL QUERY DEFAULT POS_NUM_OF_PARTNS RESET");
// LCOV_EXCL_STOP
}
return 0;
}