Prior to this commit, the implementation of
ScriptUtils.containsSqlScriptDelimiters() did not ignore comments when
searching for the statement delimiter within an SQL script. This
resulted in subtle bugs if a comment contained a single single-quote or
single double-quote, since the absence of the closing single-quote or
double-quote led the algorithm to believe that it was still "within a
text literal". Similar issues could arise if a comment contained the
sought statement delimiter but the rest of the script did not contain
the sought statement delimiter. In such cases, the algorithms in
ScriptUtils could erroneously choose an incorrect statement delimiter
-- for example, using the fallback statement delimiter instead of the
delimiter specified by the user.
This commit avoids such bugs by ignoring single-line comments and block
comments when searching for the statement delimiter within an SQL
script.
Closes gh-26911
e4d843e41e