[jdbc-v2] JDBC Escaping

[chernser]

Description

JDBC escaping allows to write portable (really not) SQL statements that can be run with different JDBC drivers to get same affect. For example, {ts 2025-02-20} should be interpreted by driver as native function like toTimestamp() and other drivers should do similar way.

Current JDBC implementation

• does escaping always but should be controlled by com.clickhouse.jdbc.StatementImpl#setEscapeProcessing
• should be true for both Statement and PreparedStatement with according tests
• lacks of documentation https://clickhouse.com/docs/integrations/language-clients/java/jdbc
• done after prepared statement is parsed but should before (to not confuse parser :-))

There is a good explanation of how JDBC escaping works https://jdbc.postgresql.org/documentation/escapes/.