@zhyass and I found some codes may be incorrect in

https://github.com/ClickHouse/ClickHouse/blob/33ffe11d0397aa6904c246172223b1da1fbcf1cc/src/Storages/MergeTree/KeyCondition.cpp#L280-L297

It tries to extract fixed prefix from the like pattern to find the range, but it's wrong, A counterexample is ：

like_pattern  -> "a%c",  the prefix will be "a" and the range will be ` Range("a", true,"b", false)` yet the String "axxxxxd" still not match match this pattern (  axxxxxd not like a%c => true  ).

`Not like` is not the reverse of `Like` in continuous key ranges.

The only special case to work fine for "not like" to range is that string pattern ends with "%" or "_" , eg:    'a%', 'a\_'

cc @alexey-milovidov 
const ASTPtr & ast, size_t & out_key_column_num, DataTypePtr & out_key_column_type, Field & out_value, DataTypePtr & out_type)
{
    String expr_name = ast->getColumnNameWithoutAlias();
    if (array_joined_columns.count(expr_name))
        return false;
    if (key_subexpr_names.count(expr_name) == 0)
    {
        
        
        
        
        
        
        
        
        
        auto adjusted_ast = ast->clone();
        KeyDescription::moduloToModuloLegacyRecursive(adjusted_ast);
        expr_name = adjusted_ast->getColumnName();
        if (key_subexpr_names.count(expr_name) == 0)
            return false;
    }