match_index  content   case match_index when 2 then replicate('abc', 1000) else '' end   0 {"col_0":10} 1 {"col_0":50}  2 {"col_0":50} abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabc⋯bcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabc   3 {"col_0":50}