On 30.09.2024 09:03, Raffaele Gambelli wrote:
In RDBDocumentStoreDB:

public String getTableCreationStatement(String tableName, int schema) {
        return "create table " + tableName
                + " (ID varchar(512) not null primary key, MODIFIED bigint, 
HASBINARY smallint, DELETEDONCE smallint, MODCOUNT bigint, CMODCOUNT bigint, DSIZE 
bigint, "
                + (schema >= 1 ? "VERSION smallint, " : "")
                + (schema >= 2 ? "SDTYPE smallint, SDMAXREVTIME bigint, " : "")
                + "DATA varchar(16384), BDATA blob(" + 1024 * 1024 * 1024 + 
"))";

But using utf8mb4 that DATA becomes 16384 * 4 = 65536, in mariadb the varchar 
max is 65,532. The effective maximum length of a VARCHAR is subject to the 
maximum row size and the character set used

MySql behaves the same so I can't understand the suggestion in using utf8mb4 
given that create table statement, could you explain please?

Thanks

Raffaele,

if you're still interested in this, and if you're familiar with Docker,
it would be helpful if you can document how to run either Mariadb or
Mysql inside Docker, and document it in


https://github.com/apache/jackrabbit-oak/blob/trunk/oak-doc/src/site/markdown/testing.md

Best regards, Julian

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