Fix GRANTED BY support in REVOKE ROLE statements

Allow GRANTED BY clause in normal GRANT and REVOKE statements

Try to stabilize output from rolenames regression test.

Allow CURRENT_ROLE where CURRENT_USER is accepted

Don't crash on empty statements in SQL-standard function bodies.

psql: Fix line continuation prompts for unbalanced parentheses

Provide query source text when parsing a SQL-standard function body.

Revert "Cope with NULL query string in ExecInitParallelPlan()."

Undo decision to allow pg_proc.prosrc to be NULL.

Enable almost all TAP tests involving symlinks on Windows

pg_dump: Reorganize dumpFunc() and dumpAgg()

pg_dump: Further reorganize getTableAttrs()

Fix -Wcast-function-type warnings

Improvements to psql \dAo and \dAp commands

Rename enable_incrementalsort for clarity

Clean up grammar a bit

Add current substring regular expression syntax

Add hints about protocol-version-related SSL connection failures.

Change libpq's default ssl_min_protocol_version to TLSv1.2.

Disallow factorial of negative numbers

Expand tests for factorial

doc: Document factorial function