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Move configure --disable-float8-byval to pg_config_manual.h

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This build option was once useful to maintain compatibility with
version-0 functions, but those are no longer supported, so this option
is no longer useful for end users.  We keep the option available to
developers in pg_config_manual.h so that it is easy to test the
pass-by-reference code paths without having to fire up a 32-bit
machine.

Discussion: https://www.postgresql.org/message-id/flat/f3e1e576-2749-bbd7-2d57-3f9dcf75255a@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2019-11-27 11:21:02 +01:00
parent 47a3c7fa06
commit 4513d8b07b
8 changed files with 19 additions and 141 deletions
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13
src/include/pg_config_manual.h
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@@ -56,6 +56,19 @@
*/
#define PARTITION_MAX_KEYS 32
/*
* Decide whether built-in 8-byte types, including float8, int8, and
* timestamp, are passed by value. This is on by default if sizeof(Datum) >=
* 8 (that is, on 64-bit platforms). If sizeof(Datum) < 8 (32-bit platforms),
* this must be off. We keep this here as an option so that it is easy to
* test the pass-by-reference code paths on 64-bit platforms.
*
* Changing this requires an initdb.
*/
#if SIZEOF_VOID_P >= 8
#define USE_FLOAT8_BYVAL 1
#endif
/*
* When we don't have native spinlocks, we use semaphores to simulate them.
* Decreasing this value reduces consumption of OS resources; increasing it