Details
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Bug
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Resolution: Fixed
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Major
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7.0.4
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Untriaged
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1
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Unknown
Description
create index ix30 on default(docid) WHERE type = "xyz"; |
explain select 1 FROM default s inner JOIN default j ON meta(j).id = s.docid AND s.type = j.type WHERE s.type = "xyz"; |
{
|
"requestID": "5a56dca2-1dfc-4c5e-ba8d-553d70978b67", |
"signature": "json", |
"results": [ |
{
|
"plan": { |
"#operator": "Sequence", |
"~children": [ |
{
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"#operator": "IndexScan3", |
"as": "s", |
"covers": [ |
"cover ((`s`.`docid`))", |
"cover ((meta(`s`).`id`))" |
],
|
"filter": "((cover ((`s`.`type`)) = \"xyz\") and (cover ((`s`.`docid`)) is not null))", |
"filter_covers": { |
"cover ((`s`.`type`))": "xyz" |
},
|
"index": "ix30", |
"index_id": "91b2d0e152eca069", |
"index_projection": { |
"entry_keys": [ |
0 |
]
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},
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"keyspace": "default", |
"namespace": "default", |
"spans": [ |
{
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"exact": true, |
"range": [ |
{
|
"inclusion": 0, |
"index_key": "`docid`", |
"low": "null" |
}
|
]
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}
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],
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"using": "gsi" |
},
|
{
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"#operator": "Join", |
"as": "j", |
"keyspace": "default", |
"namespace": "default", |
"on_filter": "((`s`.`type`) = (`j`.`type`))", |
"on_keys": "cover ((`s`.`docid`))" |
},
|
{
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"#operator": "Parallel", |
"~child": { |
"#operator": "Sequence", |
"~children": [ |
{
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"#operator": "InitialProject", |
"result_terms": [ |
{
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"expr": "1" |
}
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]
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}
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]
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}
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}
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]
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},
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"text": "select 1 FROM default s inner JOIN default j ON meta(j).id = s.docid AND s.type = j.type WHERE s.type = \"xyz\";" |
}
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],
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"status": "success", |
"metrics": { |
"elapsedTime": "3.660792ms", |
"executionTime": "3.565318ms", |
"resultCount": 1, |
"resultSize": 2460, |
"serviceLoad": 2 |
}
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}
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right side of join is document key, so transformed ON KEYS JOIN.
Left side is covered. Missing the cover in JOIN operator on_filter around s.type.
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{
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"#operator": "Join", |
"as": "j", |
"keyspace": "default", |
"namespace": "default", |
"on_filter": "((`s`.`type`) = (`j`.`type`))", |
"on_keys": "cover ((`s`.`docid`))" |
},
|
cc Bingjie Miao
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