mirror of https://github.com/citusdata/citus.git
87 lines
3.1 KiB
PL/PgSQL
87 lines
3.1 KiB
PL/PgSQL
--
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-- MULTI_JSONB_AGG
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--
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SET citus.next_shard_id TO 520000;
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CREATE OR REPLACE FUNCTION array_sort (jsonb)
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RETURNS jsonb LANGUAGE SQL
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AS $$
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SELECT jsonb_agg(value) FROM (
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SELECT * FROM jsonb_array_elements($1) ORDER BY 1
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) t
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$$;
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-- Check multi_cat_agg() aggregate which is used to implement jsonb_agg()
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SELECT jsonb_cat_agg(i) FROM
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(VALUES ('[1,{"a":2}]'::jsonb), ('[null]'::jsonb), (NULL), ('["3",5,4]'::jsonb)) AS t(i);
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-- Check that we don't support distinct and order by with jsonb_agg()
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SELECT jsonb_agg(distinct l_orderkey) FROM lineitem;
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SELECT jsonb_agg(l_orderkey ORDER BY l_partkey) FROM lineitem;
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SELECT jsonb_agg(distinct l_orderkey ORDER BY l_orderkey) FROM lineitem;
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-- Check jsonb_agg() for different data types and LIMIT clauses
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SELECT array_sort(jsonb_agg(l_partkey)) FROM lineitem GROUP BY l_orderkey
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ORDER BY l_orderkey LIMIT 10;
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SELECT array_sort(jsonb_agg(l_extendedprice)) FROM lineitem GROUP BY l_orderkey
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ORDER BY l_orderkey LIMIT 10;
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SELECT array_sort(jsonb_agg(l_shipdate)) FROM lineitem GROUP BY l_orderkey
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ORDER BY l_orderkey LIMIT 10;
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SELECT array_sort(jsonb_agg(l_shipmode)) FROM lineitem GROUP BY l_orderkey
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ORDER BY l_orderkey LIMIT 10;
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-- Check that we can execute jsonb_agg() within other functions
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SELECT jsonb_array_length(jsonb_agg(l_orderkey)) FROM lineitem;
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-- Check that we can execute jsonb_agg() on select queries that hit multiple
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-- shards and contain different aggregates, filter clauses and other complex
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-- expressions. Note that the l_orderkey ranges are such that the matching rows
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-- lie in different shards.
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SELECT l_quantity, count(*), avg(l_extendedprice), array_sort(jsonb_agg(l_orderkey)) FROM lineitem
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WHERE l_quantity < 5 AND l_orderkey > 5500 AND l_orderkey < 9500
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GROUP BY l_quantity ORDER BY l_quantity;
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SELECT l_quantity, array_sort(jsonb_agg(extract (month FROM o_orderdate))) AS my_month
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FROM lineitem, orders WHERE l_orderkey = o_orderkey AND l_quantity < 5
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AND l_orderkey > 5500 AND l_orderkey < 9500 GROUP BY l_quantity ORDER BY l_quantity;
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SELECT l_quantity, array_sort(jsonb_agg(l_orderkey * 2 + 1)) FROM lineitem WHERE l_quantity < 5
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AND octet_length(l_comment) + octet_length('randomtext'::text) > 40
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AND l_orderkey > 5500 AND l_orderkey < 9500 GROUP BY l_quantity ORDER BY l_quantity;
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-- Check that we can execute jsonb_agg() with an expression containing NULL values
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SELECT jsonb_agg(case when l_quantity > 20 then l_quantity else NULL end)
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FROM lineitem WHERE l_orderkey < 5;
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-- Check that we can execute jsonb_agg() with an expression containing different types
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SELECT jsonb_agg(case when l_quantity > 20 then to_jsonb(l_quantity) else '"f"'::jsonb end)
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FROM lineitem WHERE l_orderkey < 5;
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-- Check that we can execute jsonb_agg() with an expression containing jsonb arrays
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SELECT jsonb_agg(jsonb_build_array(l_quantity, l_shipdate))
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FROM lineitem WHERE l_orderkey < 3;
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-- Check that we can execute jsonb_agg() with an expression containing arrays
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SELECT jsonb_agg(ARRAY[l_quantity, l_orderkey])
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FROM lineitem WHERE l_orderkey < 3;
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-- Check that we return NULL in case there are no input rows to jsonb_agg()
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SELECT jsonb_agg(l_orderkey) FROM lineitem WHERE l_quantity < 0;
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