diff options
| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2020-03-02 18:19:51 -0300 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2020-03-02 18:19:51 -0300 |
| commit | 2f9661311b83dc481fc19f6e3bda015392010a40 (patch) | |
| tree | 9a1aabe1d15ac894f7badbc886ae33f16bbfc3b6 /doc/src | |
| parent | 7b425a5283cb2c8a452c2e79d6218e41373fd641 (diff) | |
| download | postgresql-2f9661311b83dc481fc19f6e3bda015392010a40.tar.gz postgresql-2f9661311b83dc481fc19f6e3bda015392010a40.zip | |
Represent command completion tags as structs
The backend was using strings to represent command tags and doing string
comparisons in multiple places, but that's slow and unhelpful. Create a
new command list with a supporting structure to use instead; this is
stored in a tag-list-file that can be tailored to specific purposes with
a caller-definable C macro, similar to what we do for WAL resource
managers. The first first such uses are a new CommandTag enum and a
CommandTagBehavior struct.
Replace numerous occurrences of char *completionTag with a
QueryCompletion struct so that the code no longer stores information
about completed queries in a cstring. Only at the last moment, in
EndCommand(), does this get converted to a string.
EventTriggerCacheItem no longer holds an array of palloc’d tag strings
in sorted order, but rather just a Bitmapset over the CommandTags.
Author: Mark Dilger, with unsolicited help from Álvaro Herrera
Reviewed-by: John Naylor, Tom Lane
Discussion: https://postgr.es/m/981A9DB4-3F0C-4DA5-88AD-CB9CFF4D6CAD@enterprisedb.com
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/event-trigger.sgml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/src/sgml/event-trigger.sgml b/doc/src/sgml/event-trigger.sgml index 18628c498ba..130f6cd886a 100644 --- a/doc/src/sgml/event-trigger.sgml +++ b/doc/src/sgml/event-trigger.sgml @@ -1074,7 +1074,7 @@ typedef struct EventTriggerData NodeTag type; const char *event; /* event name */ Node *parsetree; /* parse tree */ - const char *tag; /* command tag */ + CommandTag tag; /* command tag */ } EventTriggerData; </programlisting> |