@@ -147,27 +147,24 @@ In both of these methods, configuring the watermark is essential for obtaining a
## Supported functions
All [scalar functions](../function/#scalar-functions) are available in stream processing.
All System Information Functions are <b>not</b> available for stream processing.
All [aggregate and selection functions](../function/#system-information-functions) are available in stream processing, except following functions
-[leastsquares](../function/#leastsquares)
-[percentile](../function/#percentile)
-[top](../function/#leastsquares)
-[bottom](../function/#top)
-[elapsed](../function/#leastsquares)
-[interp](../function/#elapsed)
-[derivative](../function/#derivative)
-[irate](../function/#irate)
-[twa](../function/#twa)
-[histogram](../function/#histogram)
-[diff](../function/#diff)
-[statecount](../function/#statecount)
-[stateduration](../function/#stateduration)
-[csum](../function/#csum)
-[mavg](../function/#mavg)
-[sample](../function/#sample)
-[tail](../function/#tail)
-[unique](../function/#unique)
-[mode](../function/#mode)
All [scalar functions](../function/#scalar-functions) are available in stream processing. All [System Information Functions](../function/#system-information-functions) are <b>not</b> allowed in stream processing. All [Aggregate functions](function/#aggregate-functions) and [Selection functions](../function/#selection-functions) are available in stream processing, except the followings: