Add support for Apache Doris database detection

- Add 'doris' to MYSQL_ALIASES in lib/core/settings.py
- Add DORIS fork enum in lib/core/enums.py
- Add Doris detection logic using BITMAP_UNION_COUNT() function in MySQL fingerprint
- Apache Doris will now be properly identified as "MySQL (Doris fork)" instead of showing "MySQL version not found" error

Apache Doris is highly compatible with MySQL syntax and protocol but has unique features like BITMAP functions that can be used for detection.

lib/core/enums.py

@@ -108,6 +108,7 @@ class FORK(object):
     YUGABYTEDB = "YugabyteDB"
     OPENGAUSS = "OpenGauss"
     DM8 = "DM8"
+    DORIS = "Doris"
 
 class CUSTOM_LOGGING(object):
     PAYLOAD = 9

lib/core/settings.py

@@ -295,7 +295,7 @@ VIRTUOSO_SYSTEM_DBS = ("",)
 
 # Note: (<regular>) + (<forks>)
 MSSQL_ALIASES = ("microsoft sql server", "mssqlserver", "mssql", "ms")
-MYSQL_ALIASES = ("mysql", "my") + ("mariadb", "maria", "memsql", "tidb", "percona", "drizzle")
+MYSQL_ALIASES = ("mysql", "my") + ("mariadb", "maria", "memsql", "tidb", "percona", "drizzle", "doris")
 PGSQL_ALIASES = ("postgresql", "postgres", "pgsql", "psql", "pg") + ("cockroach", "cockroachdb", "amazon redshift", "redshift", "greenplum", "yellowbrick", "enterprisedb", "yugabyte", "yugabytedb", "opengauss")
 ORACLE_ALIASES = ("oracle", "orcl", "ora", "or")
 SQLITE_ALIASES = ("sqlite", "sqlite3")

plugins/dbms/mysql/fingerprint.py

@@ -105,6 +105,8 @@ class Fingerprint(GenericFingerprint):
                 fork = FORK.PERCONA
             elif inject.checkBooleanExpression("AURORA_VERSION() LIKE '%'"):            # Reference: https://aws.amazon.com/premiumsupport/knowledge-center/aurora-version-number/
                 fork = FORK.AURORA
+            elif inject.checkBooleanExpression("BITMAP_UNION_COUNT(NULL) IS NULL"):      # Reference: Apache Doris specific BITMAP functions
+                fork = FORK.DORIS
             else:
                 fork = ""