
create table test1 (a Float32,  b Float32 ) engine = MergeTree order by a ;
insert into test1 values (0.1,0.1), (0.2,0.2);
select count() from test1 where b = 0.1;
0 
select count() from test1 where b = toFloat32(0.1);
1
select count() from test1 where a > 0;
0
select count() from test1 where a > 0.0;
2
select count() from test1 where b > 0;
2

version 22.1.3.7  

{
        "equals",
        [] (RPNElement & out, const Field & value)
        {
            out.function = RPNElement::FUNCTION_IN_RANGE;
            out.range = Range(value);
            return true;
        }
    },
    {
        "less",
        [] (RPNElement & out, const Field & value)
        {
            out.function = RPNElement::FUNCTION_IN_RANGE;
            out.range = Range::createRightBounded(value, false);
            return true;
        }
    },
    {
        "greater",
        [] (RPNElement & out, const Field & value)
        {
            out.function = RPNElement::FUNCTION_IN_RANGE;
            out.range = Range::createLeftBounded(value, false);
            return true;
        }
    },
    {
        "lessOrEquals",
        [] (RPNElement & out, const Field & value)