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[FEAT MERGE] skip scan feature and performance optimization

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This commit is contained in:
obdev
2023-01-04 09:08:22 +00:00
committed by ob-robot
parent ad415b4359
commit 07b1224a51
119 changed files with 6176 additions and 2010 deletions
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src/sql/resolver/dml/ob_hint.cpp Normal file → Executable file
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@ -780,6 +780,9 @@ const char* ObHint::get_hint_name(ObItemType type, bool is_enable_hint /* defaul
case T_FULL_HINT: return "FULL";
case T_NO_INDEX_HINT: return "NO_INDEX";
case T_USE_DAS_HINT: return is_enable_hint ? "USE_DAS" : "NO_USE_DAS";
case T_INDEX_SS_HINT: return "INDEX_SS";
case T_INDEX_SS_ASC_HINT: return "INDEX_SS_ASC";
case T_INDEX_SS_DESC_HINT: return "INDEX_SS_DESC";
case T_LEADING: return is_enable_hint ? "LEADING" : "ORDERED";
case T_USE_MERGE: return is_enable_hint ? "USE_MERGE" : "NO_USE_MERGE";
case T_USE_HASH: return is_enable_hint ? "USE_HASH" : "NO_USE_HASH";