8543167195
* [Nereids](Variant) Implement variant type in Variant and support new sub column access method The query SELECT v["a"]["b"] from simple_var WHERE cast(v["a"]["b"] as int) = 1 1. During the binding stage, the expression element_at(var, "xxx") is transformed into a SlotReference with a specified path. This conversion is tracked in the StatementContext, where the parent slot is the primary key and the paths are secondary keys. This structure, known as subColumnSlotRefMap in the StatementContext, helps to eliminate duplicates of the same slot derived from identical paths. 2. A new rule, BindSlotWithPaths, is introduced in the analysis stage. This rule is responsible for converting slots with paths into their respective slot suppliers. To ensure that slots with paths are correctly associated with the appropriate LogicalOlapScan, an additional mapping, slotToRelation, is added to the StatementContext. This mapping links the top-level slot to its corresponding relation (i.e., LogicalOlapScan). Consequently, subsequent slots with paths can determine the correct LogicalOlapScan to merge with and modify accordingly.
17 lines
1.7 KiB
SQL
17 lines
1.7 KiB
SQL
set exec_mem_limit=8G;
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set enable_two_phase_read_opt = true;
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set topn_opt_limit_threshold = 1024;
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SELECT count() from ghdata;
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SELECT cast(v["repo"]["name"] as string) as repo_name, count() AS stars FROM ghdata WHERE cast(v["type"] as string) = 'WatchEvent' GROUP BY repo_name ORDER BY stars DESC, repo_name LIMIT 5;
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SELECT max(cast(cast(v["id"] as string) as bigint)) FROM ghdata;
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SELECT sum(cast(cast(v["id"] as string) as bigint)) FROM ghdata;
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SELECT sum(cast(v["payload"]["member"]["id"] as bigint)) FROM ghdata;
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SELECT sum(cast(v["payload"]["pull_request"]["milestone"]["creator"]["site_admin"] as bigint)) FROM ghdata;
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SELECT sum(length(v["payload"]["pull_request"]["base"]["repo"]["html_url"])) FROM ghdata;
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SELECT v["payload"]["member"]["id"] as member_id FROM ghdata where cast(v["payload"]["member"]["id"] as string) is not null ORDER BY k LIMIT 10;
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-- select k, v:payload.commits.author.name AS name, e FROM ghdata as t lateral view explode(cast(v:payload.commits.author.name as array<string>)) tm1 as e order by k limit 5;
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select k, json_extract(v, '$.repo') from ghdata WHERE cast(v["type"] as string) = 'WatchEvent' order by k limit 10;
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SELECT cast(v["payload"]["member"]["id"] as bigint) as member_id, count() FROM ghdata where cast(v["payload"]["member"]["id"] as bigint) is not null group by member_id order by 1, 2 desc LIMIT 10;
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select k, cast(v["id"] as string), cast(v["type"] as string) as type, cast(v["repo"]["name"] as string) from ghdata WHERE cast(v["type"] as string) = 'WatchEvent' order by k limit 10;
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SELECT cast(v["payload"]["pusher_type"] as text) as pusher_type FROM ghdata where cast(v["payload"]["pusher_type"] as text) is not null ORDER BY k LIMIT 10;
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