Excerpts from Grzegorz Szpetkowski's message of dom abr 17 21:26:02 -0300 2011:
> Then "it goes to" zlib library. According to http://www.zlib.net/manual.html: > > "The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and > 9: 1 gives best speed, 9 gives best compression, 0 gives no > compression at all (the input data is simply copied a block at a > time). Z_DEFAULT_COMPRESSION requests a default compromise between > speed and compression (currently equivalent to level 6)." > > #define Z_DEFAULT_COMPRESSION (-1) (zlib.h) > > What do you think about adding some clarification in PostgreSQL doc ? Can this behavior be tuned externally? Say by an environment var or something. If it can, then maybe it's worth documenting it a bit more fully (including the tuning option). Otherwise I think the current docs are enough. -- Álvaro Herrera <alvhe...@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
