spanner/spansql: NOT NULL protobuf columns concatenate NOT NULL into protobuf type-name #11301
Description
client: spanner (spansql specifically)
I introduced protobuf type parsing in #10945, and made the parser overly aggressive, so it concatenates NOTNULL into the protobuf type name rather than setting the relevant bool on the column definition when parsing a CREATE TABLE DDL statement.
#11279 fixes this (and a few other minor bugs).