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dolphin: add null first policy api

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This commit is contained in:
wuyuechuan
2024-06-25 19:50:49 +08:00
committed by jinyao418
parent b42d634974
commit ca44bc145f
9 changed files with 75 additions and 57 deletions
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12
src/gausskernel/optimizer/path/allpaths.cpp
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@ -3973,9 +3973,17 @@ static void make_partiterator_pathkey(
* we do partitionkey comparison just as ''order by ASC NULL LAST'', and pathkey
* must follow the same rules. If sortcluase is ether ''ASC NULL FIRST'' or "DESC
* NULL LAST", just abandon pathkeys
* in B database, nulls was the min value
*/
if (!(pk_strategy == BTLessStrategyNumber && pk_nulls_first == false) &&
!(pk_strategy == BTGreaterStrategyNumber && pk_nulls_first == true)) {
bool invalid_path_key= false;
if (CheckPluginNullsPolicy()) {
invalid_path_key = !(pk_strategy == BTLessStrategyNumber && pk_nulls_first == true) &&
!(pk_strategy == BTGreaterStrategyNumber && pk_nulls_first == false);
} else {
invalid_path_key = !(pk_strategy == BTLessStrategyNumber && pk_nulls_first == false) &&
!(pk_strategy == BTGreaterStrategyNumber && pk_nulls_first == true);
}
if (invalid_path_key) {
OPT_LOG(DEBUG2,
"partiterator fails to inherit pathkeys since sort strategy is"
" nether ASC NULL LAST nor DESC DESC NULL FIRST");