-- {echo} SELECT sqrt(-1) as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=1; SELECT sqrt(-1) as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=0; SELECT -inf as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=1; SELECT -inf as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=0; SELECT NULL as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=1; SELECT NULL as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=0; SELECT inf as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=1; SELECT inf as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=0; SELECT nan as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=1; SELECT nan as x, not(x), not(not(x)), (not(x)) IS NULL SETTINGS allow_experimental_analyzer=0;