Hi. I'm looking into adding daterange exclusions to some of my tables. Following the documentation, I can do this no problem to prevent any records from overlapping:
--
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CREATE TEMP TABLE foo (
client_id integer,
start_date date NOT NULL,
end_date date,
EXCLUDE using gist (daterange(start_date,end_date) with &&)
);
But what I really want is no overlapping records on a per-client basis. I optimistically tried this:
CREATE TEMP TABLE foo (
client_id integer,
start_date date NOT NULL,
end_date date,
EXCLUDE using gist (daterange(start_date,end_date) with &&,client_id with =)
);
But Postgres responds thusly:
ERROR: data type integer has no default operator class for access method "gist"
HINT: You must specify an operator class for the index or define a default operator class for the data type.
Can someone tell me what's the easiest way to make this work? Thanks in advance!
Ken
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