docs: Adapt wal_segment_size docs to fc49e24fa69.

Fix s/intidb/initdb/ typo.

Improve JIT docs.

Add documentation for the JIT feature.

Add EXPLAIN support for JIT.

Add inlining support to LLVM JIT provider.

JIT tuple deforming in LLVM JIT provider.

Constify numeric.c.

Clear stmt_timeout_active if we disable_all_timeouts.

Backport: Add inline murmurhash32(uint32) function.

Improve sys/catcache performance.

Add pg_noinline macro to c.h.

Add inline murmurhash32(uint32) function.

Replace remaining uses of pq_sendint with pq_sendint{8,16,32}.

Improve performance of SendRowDescriptionMessage.

Use one stringbuffer for all rows printed in printtup.c.

Add configure infrastructure to detect support for C99's restrict.

Allow to avoid NUL-byte management for stringinfos and use in format.c.

Replace binary search in fmgr_isbuiltin with a lookup array.

Allow pg_ctl kill to send SIGKILL.

Try to make crash restart test work on windows.

Make new crash restart test a bit more robust.

Remove redundant stdint.h include.

Expand expected output for recovery test even further.

Expand expected output for recovery test even further.

Accept that server might not be able to send error in crash recovery test.

s/NULL byte/NUL byte/ in comment refering to C string terminator.

Avoid use of non-portable strnlen() in pgstat_clip_activity().

Speedup pgstat_report_activity by moving mb-aware truncation to read side.

Add test for postmaster crash restarts.

Fix crash restart bug introduced in 8356753c212.