mirror of
https://github.com/postgres/postgres.git
synced 2026-04-11 12:06:55 -04:00
2c16deee2f
Until now extensions that wanted to measure overall query execution could
create QueryDesc->totaltime, which the core executor would then start and
stop. That's a bit odd and composes badly, e.g. extensions always had to use
INSTRUMENT_ALL, because otherwise another extension might not get what they
need.
Instead this introduces a new field, QueryDesc->query_instr_options, that
extensions can use to indicate whether they need query level instrumentation
populated, and with which instrumentation options. Extensions should take care
to only add options they need, instead of replacing the options of others.
The prior name of the field, totaltime, sounded like it would only measure
time, but these days the instrumentation infrastructure can track more
resources. The secondary benefit is that this will make it obvious to
extensions that they may not create the Instrumentation struct themselves
anymore (often extensions build only against a postgres build without
assertions).
Adjust pg_stat_statements and auto_explain to match, and lower the
requested instrumentation level for auto_explain to INSTRUMENT_TIMER,
since the summary instrumentation it needs is only runtime.
The reason to push this now, rather in the PG 20 cycle, is that
|
||
|---|---|---|
| .. | ||
| amcheck | ||
| auth_delay | ||
| auto_explain | ||
| basebackup_to_shell | ||
| basic_archive | ||
| bloom | ||
| bool_plperl | ||
| btree_gin | ||
| btree_gist | ||
| citext | ||
| cube | ||
| dblink | ||
| dict_int | ||
| dict_xsyn | ||
| earthdistance | ||
| file_fdw | ||
| fuzzystrmatch | ||
| hstore | ||
| hstore_plperl | ||
| hstore_plpython | ||
| intagg | ||
| intarray | ||
| isn | ||
| jsonb_plperl | ||
| jsonb_plpython | ||
| lo | ||
| ltree | ||
| ltree_plpython | ||
| oid2name | ||
| pageinspect | ||
| passwordcheck | ||
| pg_buffercache | ||
| pg_freespacemap | ||
| pg_logicalinspect | ||
| pg_overexplain | ||
| pg_plan_advice | ||
| pg_prewarm | ||
| pg_stash_advice | ||
| pg_stat_statements | ||
| pg_surgery | ||
| pg_trgm | ||
| pg_visibility | ||
| pg_walinspect | ||
| pgcrypto | ||
| pgrowlocks | ||
| pgstattuple | ||
| postgres_fdw | ||
| seg | ||
| sepgsql | ||
| spi | ||
| sslinfo | ||
| start-scripts | ||
| tablefunc | ||
| tcn | ||
| test_decoding | ||
| tsm_system_rows | ||
| tsm_system_time | ||
| unaccent | ||
| uuid-ossp | ||
| vacuumlo | ||
| xml2 | ||
| contrib-global.mk | ||
| Makefile | ||
| meson.build | ||
| README | ||
The PostgreSQL contrib tree
---------------------------
This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree. This does not preclude their
usefulness.
User documentation for each module appears in the main SGML
documentation.
When building from the source distribution, these modules are not
built automatically, unless you build the "world" target. You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.
Some directories supply new user-defined functions, operators, or
types. To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command. In a fresh database,
you can simply do
CREATE EXTENSION module_name;
See the PostgreSQL documentation for more information about this
procedure.