Silence "may be used uninitialized" compiler warning.

doc PG 17 relnotes: clarify pg_upgrade and logical slot preserv.

doc PG 17 relnotes: add missing commands for safe search path

doc PG 17 relnotes: move adminpack item to incompatibilities

doc PG 17 relnotes: add major features list

doc PG 17 relnotes: move EXPLAIN items to their own section

Allow examine_simple_variable() to work on INSERT RETURNING Vars.

Extract column statistics from CTE references, if possible.

Prevent duplicate RTEPermissionInfo for plain-inheritance parents

Fix problems when a plain-inheritance parent table is excluded.

Doc: indexUnchanged is strictly a hint.

Re-allow INDEX_VAR as rt_index in ChangeVarNodes().

Fix thinkos in have_unsafe_outer_join_ref; reduce to Assert check.

Invent "join domains" to replace the below_outer_join hack.

Do assorted mop-up in the planner.

Make Vars be outer-join-aware.

pg_dump: avoid unsafe function calls in getPolicies().

Account for TOAST data while scheduling parallel dumps.

Use PREPARE/EXECUTE for repetitive per-object queries in pg_dump.

Avoid per-object queries in performance-critical paths in pg_dump.

Postpone calls of unsafe server-side functions in pg_dump.

Move into separate file all the SQL queries used in pg_upgrade tests

Add table to regression tests for binary-compatibility checks in pg_upgrade

Fix tests of pg_upgrade across different major versions

Add missing include to pg_upgrade/version.c

Improve the check for pg_catalog.unknown data type in pg_upgrade

Add support for Visual Studio 2022 in build scripts

Revert refactoring of hex code to src/common/