Add description of limitations of data types
@@ -446,6 +446,8 @@ However, the following types in JDBC databases are converted differently when th
| TEXT | VARCHAR(64) | VARCHAR(10485760) | VARCHAR2(64) |
| BLOB | VARBINARY(64) | | RAW(64) |
+The value range of `BIGINT` in Scalar DB is from -2^53 to 2^53 regardless of the underlying database.
+
If this data type mapping doesn't match your application, please alter the tables to change the data types after creating them with this tool.
## Internal metadata for Consensus Commit
