PostgreSQL JDBC Driver 42.2.21 Release Highlights
The PostgreSQL JDBC Driver (PgJDBC) version 42.2.21 introduces documentation updates for the deprecated DataSource API, ensures primary keys for updatable result sets, adds asynchronous notification handling, rewrites the OSGi bundle activator, and fixes metadata retrieval when search_path is not specified.
PostgreSQL JDBC Driver (PgJDBC) allows Java programs to connect to PostgreSQL databases using standard, database‑independent Java code. It is an open‑source, pure‑Java (type‑4) driver that communicates via PostgreSQL's native network protocol.
PGJDBC team officially released version 42.2.21, a small maintenance update with the following changes:
Updated documentation to reflect the deprecated DataSource API setServerName.
Ensured that tables have defined primary keys when using updatable result sets.
Added handling for asynchronous notifications or errors after a prepared query is read.
Rewrote the OSGi bundle activator, fixing issue #2133.
Corrected database metadata getFunctions() and getProcedures() to respect search_path when no schema is specified.
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