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fix mysql mode group by expr ambiguous

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zs0
2022-03-23 13:57:48 +08:00
committed by LINxiansheng
parent c4130e5a6f
commit 7a4d9b8d2f
1 changed files with 7 additions and 0 deletions
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7
src/sql/resolver/dml/ob_select_resolver.cpp
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@ -4677,6 +4677,13 @@ int ObSelectResolver::resolve_column_ref_table_first(
if (OB_FAIL(resolve_alias_column_ref(q_name, real_ref_expr))) {
LOG_WARN_IGNORE_COL_NOTFOUND(ret, "resolve alias column ref failed", K(ret), K(q_name));
}
} else if (OB_NON_UNIQ_ERROR == ret && share::is_mysql_mode() && T_GROUP_SCOPE == current_scope_) {
// in mysql mode, for t1(c1, c2), t2(c1, c2), select t1.c1 from t1, t2 group by c1;
// the c1 in group by is resolved as t1.c1 in select items.
if (OB_FAIL(resolve_alias_column_ref(q_name, real_ref_expr))) {
ret = OB_NON_UNIQ_ERROR;
LOG_WARN("resolve table column ref failed", K(ret));
}
} else {
LOG_WARN("resolve table column ref failed", K(ret));
}