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feat(runtime)!: MCOL-678 A "GROUP BY ... WITH ROLLUP" support

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Adds a special column which helps to differentiate data and rollups of
various depts and a simple logic to row aggregation to add processing of
subtotals.
This commit is contained in:
Sergey Zefirov
2023-09-26 17:01:53 +03:00
committed by GitHub
parent 5013717730
commit 920607520c
20 changed files with 650 additions and 74 deletions
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18
dbcon/mysql/ha_mcs_execplan.cpp
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@ -7392,13 +7392,7 @@ int getSelectPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, bool i
#endif
int rc = 0;
// rollup is currently not supported
if (select_lex.olap == ROLLUP_TYPE)
{
gwi.fatalParseError = true;
gwi.parseErrorText = IDBErrorInfo::instance()->errorMsg(ERR_ROLLUP_NOT_SUPPORT);
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, gwi.parseErrorText, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
bool withRollup = select_lex.olap == ROLLUP_TYPE;
setExecutionParams(gwi, csep);
@ -8331,6 +8325,11 @@ int getSelectPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, bool i
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, gwi.parseErrorText, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
if (withRollup)
{
SRCP rc(new RollupMarkColumn());
gwi.groupByCols.insert(gwi.groupByCols.end(), rc);
}
}
// ORDER BY processing
@ -8653,6 +8652,7 @@ int getSelectPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, bool i
gwi.additionalRetCols.end());
csep->groupByCols(gwi.groupByCols);
csep->withRollup(withRollup);
csep->orderByCols(gwi.orderByCols);
csep->returnedCols(gwi.returnedCols);
csep->columnMap(gwi.columnMap);
@ -8907,13 +8907,15 @@ ConstantColumn* buildConstColFromFilter(SimpleColumn* originalSC, gp_walk_info&
return result;
}
// XXX: need to trigger that somehow.
int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_group_info& gi, bool isUnion)
{
#ifdef DEBUG_WALK_COND
cerr << "getGroupPlan()" << endl;
#endif
// rollup is currently not supported
// XXX: rollup is currently not supported (not tested) in this part.
// but this is not triggered in any of tests.
if (select_lex.olap == ROLLUP_TYPE)
{
gwi.fatalParseError = true;