Adds a new column to an existing table.
Adds a new single column of the specified type. The new column is not back-populated even if the table contains data.
While a single column is added atomically, adding multiple columns is not an atomic operation. QuestDB will stop adding the remaining columns on the list on the first failure. It is therefore possible to add some columns and not others.
Adding a new column does not lock the table for reading and does not wait on any reads to finish.
Add a new column called
comment of type
STRING type to the table
When adding a
symbol column, you can also specify symbol related options, for
index keywords are optional.
For more information on symbol options, please refer to the symbol documentation