1.15. Table: sl_setsync

Structure of sl_setsync

ssy_setid

integer PRIMARY KEY REFERENCES sl_set>

ID number of the replication set

ssy_origin

integer REFERENCES sl_node>

ID number of the node

ssy_seqno

bigint

Slony-I sequence number

ssy_minxid

xxid

Earliest XID in provider system affected by SYNC

ssy_maxxid

xxid

Latest XID in provider system affected by SYNC

ssy_xip

text

Contains the list of XIDs in progress at SYNC time

ssy_action_list

text

action list used during the subscription process. At the time a subscriber copies over data from the origin, it sees all tables in a state somewhere between two SYNC events. Therefore this list must contains all XIDs that are visible at that time, whose operations have therefore already been included in the data copied at the time the initial data copy is done. Those actions may therefore be filtered out of the first SYNC done after subscribing.