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Fixed an error and added a test

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This commit is contained in:
Alexey Milovidov 2020-04-20 07:02:52 +03:00
parent acde587c75
commit be4d20e690
3 changed files with 8 additions and 1 deletions
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7
src/Functions/FunctionsComparison.h
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@ -748,7 +748,12 @@ private:
if (c0_const && c1_const)
{
return executeString(block, result, c0_const->convertToFullColumn().get(), c1_const->convertToFullColumn().get());
auto res = executeString(block, result, &c0_const->getDataColumn(), &c1_const->getDataColumn());
if (!res)
return false;
block.getByPosition(result).column = ColumnConst::create(block.getByPosition(result).column, c0_const->size());
return true;
}
else
{

1
tests/queries/0_stateless/01251_string_comparison.reference Normal file
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@ -0,0 +1 @@
1

1
tests/queries/0_stateless/01251_string_comparison.sql Normal file
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@ -0,0 +1 @@
SELECT isConstant('a' = 'b');