database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-18 17:42:25 +03:00
Code Activity

Parameter toast_tuple_target controls TOAST for new rows

Browse Source 
Specifies the point at which we try to move long column values
into TOAST tables.

No effect on existing rows.

Discussion: https://postgr.es/m/CANP8+jKsVmw6CX6YP9z7zqkTzcKV1+Uzr3XjKcZW=2Ya00OyQQ@mail.gmail.com

Author: Simon Riggs <simon@2ndQudrant.com>
Reviewed-by: Andrew Dunstan <andrew.dunstan@2ndQuadrant.com>
This commit is contained in:
Simon Riggs
2017-11-20 09:50:10 +11:00
parent 52f63bd916
commit c2513365a0
7 changed files with 110 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/backend/access/heap/tuptoaster.c
View File

@ -727,7 +727,7 @@ toast_insert_or_update(Relation rel, HeapTuple newtup, HeapTuple oldtup,
hoff += sizeof(Oid);
hoff = MAXALIGN(hoff);
/* now convert to a limit on the tuple data size */
maxDataLen = TOAST_TUPLE_TARGET - hoff;
maxDataLen = RelationGetToastTupleTarget(rel, TOAST_TUPLE_TARGET) - hoff;
/*
* Look for attributes with attstorage 'x' to compress. Also find large