Merge pull request #44 from Sage-Bionetworks/bwmac/SNOW-80/teammember_latest_descriptions

[SNOW-80] Adds table and column comments for TEAMMEMBER_LATEST table

Author: thomasyu888

synapse_data_warehouse/synapse/tables/V2.19.1__add_descriptions_to_teammember_latest.sql

@@ -0,0 +1,12 @@
+USE SCHEMA {{database_name}}.synapse; --noqa: JJ01,PRS,TMP
+
+ALTER TABLE TEAMMEMBER_LATEST SET COMMENT = 'The latest snapshot with information for team members in Synapse.';  
+
+COMMENT ON COLUMN TEAMMEMBER_LATEST.change_timestamp IS 'The time when any change to the team was made (e.g. update of the team or a change to its members).';
+COMMENT ON COLUMN TEAMMEMBER_LATEST.change_type IS 'The type of change that occurred to the member of team, e.g., CREATE, UPDATE (Snapshotting does not capture DELETE change).';
+COMMENT ON COLUMN TEAMMEMBER_LATEST.change_user_id IS 'The unique identifier of the user who made the change to the team member.';
+COMMENT ON COLUMN TEAMMEMBER_LATEST.is_admin IS 'If true, then the member is manager of the team.';
+COMMENT ON COLUMN TEAMMEMBER_LATEST.member_id IS 'The unique identifier of the member of the team. The member is a Synapse user.';
+COMMENT ON COLUMN TEAMMEMBER_LATEST.snapshot_date IS 'The date when the snapshot was taken.';  
+COMMENT ON COLUMN TEAMMEMBER_LATEST.snapshot_timestamp IS 'The time when the snapshot was taken (It is usually after the change happened).';
+COMMENT ON COLUMN TEAMMEMBER_LATEST.team_id IS 'The unique identifier of the team.';