Cassandra Time Series - Latest Record Focus
I am attempting to model a table that revolves around 3 pieces of information:
- The item ID
- The date it is available
- The date is is no longer available
Most of the queries will revolve around selecting and modifying the latest record by item ID.
This could also include selecting/paging the latest of a range of them. (I know...)
There is potential for looking for the version of the record via two criteria in a where clause, but should not occur that often.
Schema so far:
CREATE TABLE IF NOT EXISTS my_keyspace.my_item (
item_id TEXT,
...
item_avail_start_date DATE,
item_avail_end_date DATE,
PRIMARY KEY(item_id, item_avail_start_date)
)WITH CLUSTERING ORDER BY (
item_avail_start_date DESC
);
cassandra
asked Nov 23 '18 at 16:28
Joe
12
add a comment |
I am attempting to model a table that revolves around 3 pieces of information:
- The item ID
- The date it is available
- The date is is no longer available
Most of the queries will revolve around selecting and modifying the latest record by item ID.
This could also include selecting/paging the latest of a range of them. (I know...)
There is potential for looking for the version of the record via two criteria in a where clause, but should not occur that often.
Schema so far:
CREATE TABLE IF NOT EXISTS my_keyspace.my_item (
item_id TEXT,
...
item_avail_start_date DATE,
item_avail_end_date DATE,
PRIMARY KEY(item_id, item_avail_start_date)
)WITH CLUSTERING ORDER BY (
item_avail_start_date DESC
);
cassandra
asked Nov 23 '18 at 16:28
Joe
12
add a comment |
I am attempting to model a table that revolves around 3 pieces of information:
- The item ID
- The date it is available
- The date is is no longer available
Most of the queries will revolve around selecting and modifying the latest record by item ID.
This could also include selecting/paging the latest of a range of them. (I know...)
There is potential for looking for the version of the record via two criteria in a where clause, but should not occur that often.
Schema so far:
CREATE TABLE IF NOT EXISTS my_keyspace.my_item (
item_id TEXT,
...
item_avail_start_date DATE,
item_avail_end_date DATE,
PRIMARY KEY(item_id, item_avail_start_date)
)WITH CLUSTERING ORDER BY (
item_avail_start_date DESC
);
cassandra
asked Nov 23 '18 at 16:28
Joe
12
I am attempting to model a table that revolves around 3 pieces of information:
- The item ID
- The date it is available
- The date is is no longer available
Most of the queries will revolve around selecting and modifying the latest record by item ID.
This could also include selecting/paging the latest of a range of them. (I know...)
There is potential for looking for the version of the record via two criteria in a where clause, but should not occur that often.
Schema so far:
CREATE TABLE IF NOT EXISTS my_keyspace.my_item (
item_id TEXT,
...
item_avail_start_date DATE,
item_avail_end_date DATE,
PRIMARY KEY(item_id, item_avail_start_date)
)WITH CLUSTERING ORDER BY (
item_avail_start_date DESC
);
cassandra
cassandra
asked Nov 23 '18 at 16:28
Joe
12
asked Nov 23 '18 at 16:28
Joe
12
asked Nov 23 '18 at 16:28
Joe
12
asked Nov 23 '18 at 16:28
Joe
12
asked Nov 23 '18 at 16:28
Joe
12
12
add a comment |
add a comment |
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