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optimize limit 1,0 and test.

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root 2019-09-18 02:55:59 +08:00
parent 110568f980
commit f4b7cae998
3 changed files with 2 additions and 1 deletions
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2
dbms/src/Interpreters/InterpreterSelectQuery.cpp
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@ -790,7 +790,7 @@ static std::pair<UInt64, UInt64> getLimitLengthAndOffset(const ASTSelectQuery &
if (query.limitLength()) if (query.limitLength())
{ {
length = getLimitUIntValue(query.limitLength(), context); length = getLimitUIntValue(query.limitLength(), context);
if (query.limitOffset()) if (query.limitOffset() && length)
offset = getLimitUIntValue(query.limitOffset(), context); offset = getLimitUIntValue(query.limitOffset(), context);
} }

0
dbms/tests/queries/0_stateless/01012_select_limit_x_0.reference Normal file
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1
dbms/tests/queries/0_stateless/01012_select_limit_x_0.sql Normal file
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@ -0,0 +1 @@
SELECT count() FROM system.numbers LIMIT 1, 0;